Updated on 2024/05/15

写真a

 
MARUO Masahiro
 
Organization
Faculty of Environmental Science
Department
School of Environmental Science Department of Ecosystem Studies
Title
Professor
External link

Education

  • Kyoto University   Graduate School, Division of Natural Science

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    Course completed: Doctor's Course

    Country: Japan

  • Kyoto University   Faculty of Science

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    Country: Japan

Degree

  • 博士(理学) ( 1994.3   京都大学 )

Research Field

  • Aquatic Chemistry, Analytical Chemistry

Research Experience

  • The University of Shiga Prefecture   School of Environmental Science Department of Ecosystem Studies   Professor

    2016.4

  • The University of Shiga Prefecture   School of Environmental Science Department of Ecosystem Studies   Associate Professor

    2007.11 - 2016.3

  • The University of Shiga Prefecture   School of Environmental Science Department of Ecosystem Studies   Lecturer

    2005.9 - 2007.10

  • The University of Shiga Prefecture   School of Environmental Science Department of Ecosystem Studies   Research Assistant

    1995.4 - 2005.8

  • Nara University of Education   part‐time teacher

    2022.10 - 2023.3

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    Country:Japan

  • Nara University of Education   part‐time teacher

    2021.10 - 2022.3

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    Country:Japan

  • Nara University of Education   part‐time teacher

    2020.10 - 2021.3

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    Country:Japan

  • Nara University of Education   part‐time teacher

    2019.10 - 2020.3

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    Country:Japan

  • Shimane University

    2019.8

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    Country:Japan

  • Nara University of Education   part‐time teacher

    2018.10 - 2019.3

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    Country:Japan

  • Shimane University

    2013.1 - 2013.3

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    Country:Japan

  • 奈良教育大学   教育学部   非常勤講師

    2012.10 - 2013.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2011.10 - 2012.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2010.10 - 2011.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2009.10 - 2010.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2008.10 - 2009.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2007.10 - 2008.3

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    Country:Japan

    Notes:集中講義

  • 奈良教育大学   教育学部   非常勤講師

    2006.10 - 2007.3

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    Country:Japan

    Notes:集中

  • 奈良教育大学   教育学部   非常勤講師

    2005.10 - 2006.3

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    Country:Japan

    Notes:集中

  • Nara University of Education   part‐time teacher

    2004.10 - 2005.3

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    Country:Japan

  • Shiga University   part‐time teacher

    2004.10 - 2005.3

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    Country:Japan

  • Nara University of Education   part‐time teacher

    2003.10 - 2004.3

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    Country:Japan

  • Department of Earth and Ocean Sciences, Faculty of Science, The University of British Columbia   Researcher

    2003.6 - 2003.11

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    Country:Canada

  • Japan Society for the Promotion of Science   Researcher

    1994.4 - 1995.3

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    Country:Japan

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Association Memberships

  • Japanese Society of Limnology

    2013.4

  • Japanese Society of Analytical Chemistry

    2013.4

  • 日本地球化学会

    2008.4

  • International Socity of Limnology (SIL)

    2008.4

  • 日本腐植物質学会

    2008.4

Research Areas

  • Natural Science / Space and planetary sciences

  • Natural Science / Atmospheric and hydrospheric sciences

  • Environmental Science/Agriculture Science / Environmental dynamic analysis

  • Nanotechnology/Materials / Analytical chemistry

Committee Memberships

  • 日本陸水学会   学会賞(田中賞・吉村賞)選考委員  

    2019.8 - 2022.3   

  • 日本陸水学会   英文誌編集委員会委員  

    2019.1 - 2023.12   

  • 栗東市   環境審議会委員  

    2018.1   

  • 日本陸水学会   幹事(国際幹事)  

    2017.1 - 2018.12   

  • 彦根市   公共下水道事業審議会委員  

    2015.10   

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    Committee type:Municipal

  • 日本陸水学会   論文賞選考委員  

    2013.4 - 2015.3   

  • 日本陸水学会   学会賞選考委員会委員  

    2011.4 - 2013.3   

  • 日本陸水学会   英文誌編集委員会委員  

    2009.4 - 2012.12   

  • 滋賀県びわ湖フローティングスクール   運営講話会(運営委員会)委員  

    2007.4   

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    Committee type:Municipal

  • 日本陸水学会   幹事  

    2003.4 - 2006.3   

  • 日本分析化学会近畿支部   幹事  

    1997.4   

  • 日本分析化学会   21世紀基金運営委員会委員  

    1996.4 - 1999.3   

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Papers

  • Thermally modified bamboo-eggshell adsorbent for phosphate recovery and its sustainable application as fertilizer Reviewed International journal

    Sarker Protima, Xin Liu, Naoki Hata, Hiroki Takeshita, Hiroshi Miyamura, Masahiro Maruo

    Environmental Research   231 ( Part 1 )   115992   2023.8

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Participation form:Joint(The main charge)  

    Phosphate recovery from wastewater using readily available biowaste-based adsorbents is beneficial for both eutrophication control and waste management. Bamboo char has a high-density porous structure and eggshell contains CaCO3 with high affinity for phosphate. The combination of calcined bamboo and eggshell is a potential adsorbent for P recovery that has not been tested previously. Because bamboo char and eggshell both are popular for soil amendment, a P-loaded bamboo and eggshell composite is a promising fertilizer for long-term soil improvement. In this work, the feasibility of calcined bamboo and eggshell (BE) for P recovery and its use as fertilizer were investigated. The adsorption capacity and mechanism were examined using adsorption kinetic, isotherm, and thermodynamic analysis. The kinetic study showed that the experimental data sets were fitted best by a pseudo second-order model, indicating chemisorption. The Langmuir isotherm model estimated maximum adsorption capacities of 95.14 and 98.40 mg/g for BE 1:1 and 2:1 adsorbent. Monolayer adsorption occurred on a homogenous surface. The adsorption reaction was non-spontaneous at 298 K and exothermic for the BE 1:1 and 2:1 adsorbent, and the calculated Langmuir separation factor indicated favorable conditions for P adsorption. The desorption study showed lower P desorption capacity in water than in neutral ammonium citrate. P-loaded eggshell-modified bamboo char was an effective slow-release fertilizer for Japanese mustard spinach cultivation, which is a sustainable and environment friendly use of P-loaded materials.

    DOI: 10.1016/j.envres.2023.115992

    Scopus

    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85154551207&origin=inward

  • Assessment of Heavy Metals pollution and contamination in Sediment of the Dhaleswari River, Bangladesh Reviewed International journal

    Abdullah Al Mamun, Protima Sarker, Md. Shiblur Rahaman, Md. Mahbub Kabir, Masahiro Maruo

    International Journal of Environment   10 ( 1 )   1 - 19   2021.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3126/ije.v10i1.38399

  • Grain size distribution and chemistry of the brackish Lake sediment in Korea Reviewed International journal

    I Chan Shin, Tetsuji Akatsuka, Hisayuki Azumi, Lan Ao, Nozomi Amahashi, Maki Oyagi, Noriko Ishida, Naoshige Goto, Masahiro Maruo, Akihiko Yagi, Yashshi Seike, Seung Hyun Lee, Sung Ae Yoon, Jun Kil Choi, Young Woong Byeon, Byung Mo Lee, Osamu Mitamura,Kwang Jin Cho

    Environmental Engineering Research   26 ( 5 )   200365 - *   2020.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Korean Society of Environmental Engineer   Participation form:Joint(The vice charge)  

    DOI: 10.4491/eer.2020.365

    Other Link: https://doi.org/10.4491/eer.2020.365

  • Dual stable isotope characterization of excess methane in oxic water of a mesotrophic lake Reviewed International journal

    UrumuTsunogai, Yuko Miyoshi, Toshiyuki Matsushita, Daisuke D. Komatsu, Masanori Ito, Chiho Sukigara, Fumiko Nakagawa, Masahiro Maruo

    Limnology and Oceanography   65 ( 2 )   2937 - 2952   2020.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ASLO   Participation form:Joint(The vice charge)  

    DOI: 10.1002/lno.11566

  • Differences in dissolved phosphate in shallow-lake waters as determined by spectrophotometry and ion chromatography Reviewed

    Yi R., Song P., Liu X., Maruo M., Ban S.

    Limnology   21 ( 3 )   329 - 339   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    © 2019, The Japanese Society of Limnology. Phosphorus (P) plays important roles in aquatic ecosystems, but accurately determining phosphorus species (particularly bioavailable phosphate) is difficult. When phosphate concentrations are spectrophotometrically measured as soluble reactive P (SRP), the actual values are often overestimated. Ion chromatography is one method for accurately measuring orthophosphate concentrations. To clarify how the spectrophotometrical measurement overestimates actual phosphate concentrations, we compared estimates of phosphate concentrations in lake waters using both methods. SRP and orthophosphate concentrations in water samples collected from four shallow lakes around Lake Biwa, Japan, were determined monthly for 1 year by spectrophotometry and ion chromatography, respectively. SRP concentrations were frequently higher than those for orthophosphate in all lakes throughout the study period, suggesting that SRP and orthophosphate are not equivalent, although a significant relationship was found between them. Orthophosphate/SRP (ortho/SRP) ratios varied spatiotemporally in all lakes (range 0.11–1.04; mean 0.56), being well predicted by biological-mediated relevant parameters using a stepwise multiple logistic regression analysis (R 2 = 0.76). The results implied that organic matter associated with biological activity contributes to the variability in ortho/SRP ratios. Such large variability in ortho/SRP ratios emphasizes the importance of accurate orthophosphate estimates for understanding P dynamics in aquatic ecosystems.

    DOI: 10.1007/s10201-019-00574-2

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    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85064283192&origin=inward

  • Determination of trace methylphosphonate in natural waters by ion chromatography Reviewed

    Tsuji K, Maruo M, Obata H

    68 ( 4 )   275 - 278   2019.4

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2116/bunsekikagaku.68.275

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    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85070213904&origin=inward

  • Determination of dissolved and particulate thiols in Lake Biwa water and extracted fulvic acids by solid phase extraction followed by HPLC with fluorescence detection Reviewed

    Rasheduzzaman Md., Mai Kawaguchi, Hajime Obata, Masahiro Maruo

    Limnology   19 ( 3 )   299 - 309   2018.8

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Limnology  

    © 2018, The Japanese Society of Limnology. Thiols are important antioxidants that can modulate the bioavailability and biogeochemistry of many soft metals, although their detection remains challenging in both their reduced (R–S) and oxidized (R–S–S–R) forms. Here, a modified biochemical method was applied to determine the levels of dissolved and particulate thiols in Lake Biwa water and extracted Lake Biwa fulvic acids obtained at various depths. This method involves the use of the reducing agent tris(2-carboxyethyl)phosphine and the fluorescent label 7-fluorobenzofurazan-4-sulfonic acid ammonium salt (SBD-F), followed by solid-phase extraction and HPLC with fluorescence detection. Dissolved cysteine (Cys) (2.0–6.0 nM), glutathione (GSH) (2.8–5.1 nM), and N-acetyl-l-cysteine (NAC) (1.6–4.2 nM) were detected throughout the water column but were broadly consistent at depths of 5–20 m. In contrast, abundant levels of particulate cysteine (1.3–3.5 × 102nM) and glutathione (1.6–3.1 × 102nM) were detected down to depths of 15 m. The particulate cysteine and glutathione were significantly covariant, and the ratios between them reflected the differences in the plankton community composition and availability of these compounds. This work also studied the concentrations of Cys, GSH and NAC in Lake Biwa fulvic acids (LBFAs) for the first time (at 0 m: cysteine, 0.8 nM; glutathione, 1.6 nM; NAC, 2.5 nM; at 10 m: cysteine, 1.4 nM; glutathione, 0.6 nM; NAC, 1.6 nM). The nanomolar to sub-nanomolar concentrations of the particulate and dissolved Cys, GSH and NAC in the lake indicates that these are an important class of ligands for chalcophile metals and may influence the distribution of plankton communities from the epilimnion to the hypolimnion of the lake.

    DOI: 10.1007/s10201-018-0547-1

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    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85048583403&origin=inward

  • Assessment of the Status of Groundwater Arsenic at Singair Upazila, Manikganj Bangladesh; Exploring the Correlation with Other Metals and Ions Reviewed

    Md. Mostafizur Rahman, Rebeka Sultana, Mashura Shammi, Joti Bikash, Tanveer Ahmed, Masahiro Maruo, Masaaki Kurasaki, M. Khabir Uddin

    Exposure and Health   8 ( 2 )   217 - 225   2016.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s12403-016-0196-8

  • Trace elements influenced by environmental changes in Lake Biwa: (I) Seasonal variations under suboxic hypolimnion conditions during 2007 and 2009 Reviewed

    Yusuke Nakashima, Akiyoshi Shimizu, Masahiro Maruo, Yoshiki Sohrin

    Limnology   17 ( 2 )   151 - 162   2016.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-015-0474-3

  • Trace elements influenced by environmental changes in Lake Biwa: (II) Chemical variations in the hypolimnion over the last half-century Reviewed

    Yoshiki Sohrin, Yusuke Nakashima, Masahiro Maruo

    Limnology   17 ( 2 )   163 - 173   2016.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-015-0477-0

  • Determination of aquatic humic substances in Japanese lakes and wetlands by the carbon concentration-based resin isolation technique Reviewed

    Kumiko Tsuda, Morimaru Kida, Suzuka Aso, Taku Kato, Nobuhide Fujitake, Masahiro Maruo, Kazuhide Hayakawa, Mitsuru Hirota

    Limnology   17 ( 1 )   1 - 6   2015.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-015-0455-6

  • Comparison of soluble reactive phosphorous and orthophosphate concentrations in river waters Reviewed

    Masahiro Maruo, Mana Ishimaru, Yuma Azumi, Yuki Kawasumi, Osamu Nagafuchi, Hajime Obata

    Limnology   17 ( 1 )   7 - 12   2015.12

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The main charge)  

    DOI: 10.1007/s10201-015-0463-6

  • Annual layers in river-bed sediment of a stagnant river-mouth area of the Kitagawa Brook, Central Japan Reviewed

    Yoshimasa Kurashige, Toshiaki Nakano, Eri Kasubuchi, Masahiro Maruo, Hanako Domitsu

    IAHS-AISH Proceedings and Reports: International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014; Astor Crowne PlazaNew Orleans; United States; 11 December 2014 through 14 December 2014; Code 115823   367   251 - 257   2014.12

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IAHS Publishing   Participation form:Joint(The vice charge)  

    DOI: 10.5194/piahs-367-251-2015

  • Environmental Education in a Lagoon Naiko "Nishinoko", connected with Lake Biwa Reviewed

    Mitamura O, Ishikawa S, Ishida N, Goto N, Tachibana J, Maruo M

    Limonological Study   1 ( 1 )   5 - 15   2014.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • Characteristics and role of groundwater dissolved organic matter on arsenic mobilization and poisoning in Bangladesh Reviewed

    Tareq S. M., M. Maruo, K. Ohta

    Physics and Chemistry of the Earth, Parts A/B/C   58-60   77 - 84   2013.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Participation form:Joint(The vice charge)  

    DOI: 10.1016/j.pce.2013.04.014

  • Binding interactions of 1-naphthol with dissolved organic matter of Lake Biwa and treated sewage wastewater: the role of microbial fulvic acid Reviewed

    Tanveer Ahmed, Keiichi Ohta, Osamu Nagafuchi, Masahiro. Maruo

    Environmental Toxicology & Chemistry   31 ( 10 )   2201 - 2209   2012.5

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley-Blackwell   Participation form:Joint(The main charge)  

    DOI: 10.1002/etc.1934

  • Seasonal characteristics of surface water fulvic acids from Lake Biwa and Lake Tankai in Japan Reviewed

    Fujitake N., K. Tsuda, S. Aso, H. Kodama, M. Maruo, K. Yonebayashi

    Limnology   13 ( 1 )   45 - 53   2012.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-011-0354-4

  • Fluorescence humic substances in arsenic contaminated groungwater of Bangladesh Reviewed

    Tareq S. M., Maruo M., Ohta K., Anawar H. M.

    International Journal of Economic and Environment Geology   3 ( 1 )   1 - 5   2012.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Society of Economic Geologists and Material Technologists   Participation form:Joint(The vice charge)  

  • Unique Elution Behavior of Bromide and Nitrate in Anion-exchange Chromatography Using Aqueous Potassium Chloride Eluent Containing Cadmium or Zinc Ion Reviewed

    Masahiro Maruo, Hajime Obata

    Analytical Sciences   27 ( 9 )   949 - 951   2011.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Analytical Chemistry   Participation form:Joint(The main charge)  

    DOI: 10.2116/analsci.27.949

  • Reexamination of optimum pH condition for the determination of dissolved iron(II) in aquatic environment using colorimetric reagents Reviewed

    Masahiro Maruo, Kazuki Nagaoka, Issei Kobayashi, Kanako Kozawa, Hajime Obata

    Bunseki Kagaku   59 ( 12 )   1143 - 1147   2010.12

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The main charge)  

    DOI: 10.2116/bunsekikagaku.59.1143

  • Microbial carbon isotope fractionation to produce extraordinarily heavy methane in aging hydrothermal plumes over the southwestern Okinawa Trough  Reviewed

    Gamo T., U. Tsunogai, S. Ichibayashi, H. Chiba, H. Obata, T. Oomori, T. Noguchi, E.T. Baker, T. Doi, M. Maruo, Y. Sano

    Geocemical Journal   44 ( 6 )   477 - 487   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Terra Scientific Publishing Company   Participation form:Joint(The vice charge)  

    DOI: 10.2343/geochemj.1.0097

  • Molecular changes in dissolved organic matter during photodegradation Reviewed

    Tareq S.M., M. Maruo, O. Nagafuchi, K. Ohta

    Research Report of the Research and Education Center for Inland water Environment, Shinshu University   6   29 - 34   2010.2

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)   Publisher:信州大学山地水環境教育研究センター   Participation form:Joint(The vice charge)  

  • Vertical and horizontal distribution of grain size in the bottom sediment and GPS based morphological characteristics of two Korean brackish lakes (Young-rang Ho and Hwajin-po) Reviewed

    Shin H.S., T. Akatsuka, H. Azumi, L. Ao, N. Amahashi, M. Maruo, M. Umemura, N. Ishida, A. Yagi, Y. Seike, J. K. Choi, O. Mitamura

    Proceedings of the Interantional Symposium on Ecosystem Health Assesment in Lakes and Reservoirs, Korea   * ( * )   113 - 116   2010.2

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)   Publisher:*   Participation form:Joint(The vice charge)  

  • Vertical distribution of iron(II) and its relation to organic substances in Lake Biwa, Japan Reviewed International journal

    Maruo M., K. Tate, K. Ohta, K. Hayakawa, H. Obata

    Verh. Internat. Verein. Limnol.   30 ( 9 )   1379 - 1383   2010.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:E. Schweizerbart’sche Verlagsbuchhandlung   Participation form:Joint(The main charge)  

    DOI: 10.1080/03680770.2009.11902336

  • 固相抽出を用いた琵琶湖溶存有機物の化学分画に関する基礎的研究1

    北野 史子, 西本 鷹耶, 和田 千弦, 熊谷 哲, 津田 久美子, 白井 秀門, 藤嶽 暢英, 早川 和秀, 島野 淳, 丸尾 雅啓, 杉山 裕子

    日本陸水学会 講演要旨集   74   76 - 76   2009

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    Language:Japanese   Publisher:日本陸水学会  

    DOI: 10.14903/jslim.74.0.76.0

  • Manganese, cerium and iorn in the Sulu, Celebes and Philippine Seas Reviewed

    Obata H., T. Doi, Y. Hongo, D.S. Alibo, H. Minami, Y. Kato, M. Maruo

    Deep Sea Res. II   54 ( 1,2 )   38 - 49   2007.4

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

    DOI: 10.1016/j.dsr2.2006.09.004

  • Distribution and speciation of Fe(II) in the waters of Lake Biwa and inflowing rivers Reviewed

    68 ( 3 )   415 - 423   2007.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The main charge)  

    DOI: 10.3739/rikusui.68.415

  • 琵琶湖の溶存有機物に見られる紫外線の影響

    早川 和秀, 和田 千弦, 杉浦 嘉一, 鈴木 智代, 杉山 裕子, 丸尾 雅啓

    日本陸水学会 講演要旨集   72   77 - 77   2007

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    Language:Japanese   Publisher:日本陸水学会  

    DOI: 10.14903/jslim.72.0.77.0

  • Onboard determination of submicromolar nitrate in seawater by anion-exchange chromatography with lithium chloride eluent Reviewed

    Maruo M., T. Doi, H. Obata

    22 ( 9 )   1175 - 1178   2006.4

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The main charge)  

    DOI: 10.2116/analsci.22.1175

  • In situ generation of refractory organic compounds in Lake Biwa, Japan Reviewed

    Nouda C., M. Maruo, S. Ban, K. Ohta

    Proceedings of the 2nd Japan-Korea joint symposium on limnology (2005, Osaka)   *   18 - 23   2006.4

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    Language:English   Publishing type:Research paper (other academic)   Participation form:Joint(The vice charge)  

  • Determination of Copper Complexation in Freshwaters of West Canadian Lakes by Electrochemical Analysis Reviewed

    Maruo M., K.J. Orians

    Verh. Internat. Verein. Limnol.   29 ( 3 )   1481 - 1486   2006.4

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The main charge)  

    DOI: 10.1080/03680770.2005.11902927

  • Chemical composition of suspended particles in the Indian Ocean, Andaman Sea and South China Sea Reviewed

    0 ( 18 )   1 - 6   2005.4

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    Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)   Participation form:Joint(The vice charge)  

  • The production to respiration ratio and its implication in Lake Biwa, Japan Reviewed

    Urabe J., T. Yoshida, T.B. Gurung, T. Sekino, N. Tsugeki, K. Nozaki, M. Maruo, E. Nakayama, M. Nakanishi

    Ecological Research   20 ( - )   367 - 375   2005.4

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s11284-005-0052-y

  • Budget of dissolved trace metals in Lake Biwa, Japan Reviewed

    Mito S., Y. Sohrin, K. Norisue, M. Matsui, H. Hasegawa, M. Maruo, M. Tuchiya, M. Kawashima

    Limnology   5 ( 1 )   7 - 16   2004.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-003-0111-4

  • Shipboard analysis of picomolar levels of manganese in seawater by chelating resin concentration Reviewed

    Doi T., M. Maruo, H. Obata

    Analytical and Bioanalytical Chemistry   378 ( 5 )   1288 - 1293   2004.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s00216-003-2483-z

  • Effect of temperature and light on growth of planktonic green algae isolated from Lake Hövsgöl, Mongolia Reviewed

    Tsujimura S., M. Kumagai, J. Urabe, T. Sekino, Y. Hayami, M. Maruo

    Algological Studies   110   81 - 89   2003.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:E. Schweizerbart'sche Verlagsbuchhandlung   Participation form:Joint(The vice charge)  

  • Dissolved organic carbon and fluorescence in Lake Hovsgol: factors reducing humic content of lake water Reviewed

    Hayakawa K., T. Sekino, T. Yoshioka, M. Maruo, M. Kumagai

    Limnology   4 ( 1 )   25 - 33   2003.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Participation form:Joint(The vice charge)  

    DOI: 10.1007/s10201-003-0092-3

  • Carbon and phosphorus budgets of Lake Biwa, the largest lake in Japan Reviewed

    Yoshimizu C., J. Urabe, M. Sugiyama, M. Maruo, E. Nakayama, M. Nakanishi

    Verh. Internat. Verein. Limnol.   28   1409 - 1414   2002.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:E. Schweizerbart’sche Verlagsbuchhandlung   Participation form:Joint(The vice charge)  

    DOI: 10.1080/03680770.2001.11902687

  • Distributuon and Dynamics of Nitrogen and Phosphorous in the Fuixan and Xingyun Lake System in the Yunnan Plateau, China Reviewed

    Sakamoto M., M. Sugiyama, M. Maruo, J. Murase, X .Song, Z. Zhang

    Yunnan Geographoc Environment Research   14 ( 2 )   1 - 9   2002.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:東方書店   Participation form:Joint(The vice charge)  

  • 北太平洋亜寒帯域およびベーリング海における鉄の分布と生物生産に対する寄与 Reviewed

    高野通明、小畑元、丸尾雅啓、中山英一郎

    海洋化学研究   15 ( 1 )   36 - 49   2002.4

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    Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)   Publisher:財団法人海洋化学研究所   Participation form:Joint(The vice charge)  

  • Carbon and phosphorus budgets in the pelagic area of Lake Biwa, the largest lake in Japan Reviewed

    C Yoshimizu, J Urabe, M Sugiyama, M Maruo, E Nakayama, M Nakanishi

    INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY, VOL 28 PT 3, PROCEEDINGS   28   1409 - 1414   2002

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:E SCHWEIZERBART'SCHE VERLAGSBUCHHANDLUNG  

    Web of Science

  • モンゴル·フブスグル湖にみられる湖水中の腐植物質濃度の制御要因

    早川 和秀, 関野 樹, 吉岡 崇仁, 丸尾 雅啓, 熊谷 道夫

    日本陸水学会 講演要旨集   68   142 - 142   2002

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    Language:Japanese   Publisher:日本陸水学会  

    DOI: 10.14903/jslim.68.0.142.0

  • Load of Metals and Nutrients into Lake Biwa with Precipitation Reviewed

    3 ( 2 )   69 - 72   2001.11

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  • Carbon and phosphorus balances of the north basin of Lake Biwa: an overview Reviewed

    4 ( * )   90 - 93   2001.11

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  • Development of a deep-sea in situ Mn analyzer and its application for hydrothermal plume observation Reviewed

    Okamura K., H. Kimoto, K. Saeki, J. Ishibashi, H. Obata, M. Maruo, T. Gamo, E. Nakayama, Y. Nozaki

    Marine Chemistry   76 ( 41276 )   17 - 26   2001.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Participation form:Joint(The vice charge)  

    DOI: 10.1016/S0304-4203(01)00043-3

  • Automated determination of vanadium(IV) and -(V) in natural waters based on chelating resin separation and catalytic detection with Bindschedler's green leuco base Reviewed

    Okamura K., M. Sugiyama, H. Obata, M. Maruo, E. Nakayama, H. Karatani

    Analytica Chimica Acta   443 ( 1 )   143 - 151   2001.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Participation form:Joint(The vice charge)  

    DOI: 10.1016/S0003-2670(01)01190-4

  • Distribution of Trace Bioelements in the Subarctic North Pacific Ocean and the Bering Sea (the R/V Hakuho-Maru Cruise KH-97-2) Reviewed

    Fujishima Y., K. Ueda, M. Maruo, E. Nakayama, C. Tokutome, H. Hasegawa, M. Matsui, Y. Sohrin

    Journal of Oceanography   57 ( 3 )   261 - 273   2001.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:日本海洋学会   Participation form:Joint(The vice charge)  

    DOI: 10.1023/A:1012426411228

  • Application of the Flow-Through Analyses of Ammonia and Calcium in Ice Core and Fresh Water by Fluorometric Detection Reviewed

    Maruo M., E. Nakayama, H. Obata, K. Kamiyama, T. Kimoto

    Field Analytical Chemistry and Technology   5 ( 41276 )   29 - 36   2001.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley   Participation form:Joint(The main charge)  

    DOI: 10.1002/fact.1003

  • Flow-Through Analysis of Aluminum in Seawater by Fluorometric Detection with the Use of Lumogallion Reviewed

    Obata H., Y. Nozaki, K. Okamura, M. Maruo, E. Nakayama

    Field Analytical Chemistry and Technology   4 ( 6 )   274 - 282   2000.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley   Participation form:Joint(The vice charge)  

    DOI: 10.1002/1520-6521(2000)4:6<274::AID-FACT30>3.0.CO;2-U

  • Diel changes in phatography by Cryptomonas in Lake Biwa Reviewed

    Urabe J., T.B. Gurung, T. Yoshida, T. Sekino, M. Nakanishi, M. Maruo, E. Nakayama

    Limnology and Oceanography   45 ( 7 )   1558 - 1563   2000.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Society of Limnology and Oceanography   Participation form:Joint(The vice charge)  

    DOI: 10.4319/lo.2000.45.7.1558

  • Analyses of iron and manganese in seawtaer on board Reviewed

    Obata H, M Maruo, K Okamura, T Kimoto, H Kimoto, E Nakayama

    Proceedings of the Marine Analytical Chemistry for Monitoring and Oceanographic Research   *   213 - 218   1997.1

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    Language:English   Publishing type:Research paper (other academic)   Publisher:Editorianl Board of the Worklshop "Marine Analytical Chemistry for Monitoring and Oceanographic Research"   Participation form:Joint(The vice charge)  

  • Measurement of fluoride ion in the river-water flowing into Lake Biwa Reviewed

    Hirayama N, M Maruo, H Obata, A Shiota, T Enya, T Kuwamoto

    Water Research   30 ( 4 )   865 - 868   1996.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Pergamon   Participation form:Joint(The vice charge)  

    DOI: 10.1016/0043-1354(95)00239-1

  • 地質と水質-河川水中の花崗岩由来フッ化物イオン Reviewed

    平山直紀、丸尾雅啓

    環境保全   10   56 - 62   1995.12

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    Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)   Publisher:京都大学環境保全センター   Participation form:Joint(The vice charge)  

  • Use of β-diketonate anions as eluent in non-suppressed ion chromatography: 1,3-cyclohexanedionate as acidic eluent Reviewed

    Hirayama N, M Maruo, A Shiota, T Kuwamoto

    Journal of Chromatography A   707 ( 2 )   384 - 389   1995.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Participation form:Joint(The vice charge)  

    DOI: 10.1016/0021-9673(95)00341-J

  • Determination of dissociation constants of aromatic carboxylic acids by ion chromatography Reviewed

    Hirayama N, M Maruo, T Kuwamoto

    Journal of Chromatography   639   333 - 337   1994.4

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    DOI: 10.1016/0021-9673(93)80271-9

  • Elution behaviors of tungsten and molybdenum in ion chromatography by using organic acid eluents having α-hydroxyl groups Reviewed

    Maruo M, N Hirayama, A Shiota, T Kuwamoto

    Analytical Sciences   8 ( 4 )   511 - 516   1992.4

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)   Publisher:Japan Society of Analytical Chemistry   Participation form:Joint(The main charge)  

    DOI: 10.2116/analsci.8.511

  • Use of β-diketonate anions as eluent in non-suppressed ion chromatography Reviewed

    Hirayama N, M Maruo, A Shiota, T Kuwamoto

    Journal of Chromatography   523   257 - 264   1990.4

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    DOI: 10.1016/0021-9673(90)85028-T

  • Ion chromatographic elution behavior and prediction of the retention of inorganic monovalent anions using a phosphate eluent Reviewed

    Maruo M, N Hirayama, T Kuwamoto

    Journal of Chromatography   481   315 - 322   1989.4

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    DOI: 10.1016/S0021-9673(01)96774-3

  • Separation and determination of organoarsenic compounds with a microbore column and ultraviolet detection Reviewed

    Maruo M, N Hirayama, H Wada, T Kuwamoto

    Journal of Chromatography   466   379 - 383   1989.4

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    DOI: 10.1016/S0021-9673(01)84634-3

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Books etc

  • 琵琶湖と環境

    琵琶湖と環境編集委員会 編( Role: Joint author)

    サンライズ出版  2015.6  ( ISBN:978-4-88325-568-9

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    Total pages:456   Language:Japanese   Book type:Scholarly book

  • 地球化学実験法

    日本地球化学会 監修、田中剛、吉田尚弘 共編、丸尾雅啓ほか 著( Role: Joint author)

    培風館  2010.7 

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    Total pages:332   Language:Japanese   Book type:Scholarly book

  • ベーシック機器分析化学

    池上、丸尾 他20名( Role: Joint author)

    化学同人  2008.7  ( ISBN:978-4-7598-1144-5

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    Total pages:198   Language:Japanese   Book type:Scholarly book

  • 「琵琶湖発フィールドワークのすすめ」

    滋賀県立大学環境フィールドワーク研究会編:丸尾雅啓ほか著者多数( Role: Joint author)

    昭和堂  2007.4  ( ISBN:978-4-8122-0717-8

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    Total pages:266   Language:Japanese   Book type:Scholarly book

  • 「第5版 実験化学講座」第20巻-2 環境化学、分析化学

    鷲田伸明編:丸尾雅啓ほか著者多数( Role: Joint author)

    丸善  2007.4  ( ISBN:978-4-621-07806-8

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    Total pages:519   Language:Japanese   Book type:Scholarly book

  • 東アジアモンスーン域の湖沼と流域 水源環境保全のために

    坂本充、熊谷道夫編;伏見碩二、丸尾雅啓、村瀬潤ほか21名( Role: Joint author)

    名古屋大学出版会  2006.4  ( ISBN:4-8158-0525-3

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    Total pages:348   Language:Japanese   Book type:Scholarly book

  • 陸水の事典

    日本陸水学会 編( Role: Joint author)

    講談社  2006.3  ( ISBN:4-0615-5221-X

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    Total pages:574   Language:Japanese   Book type:Dictionary, encyclopedia

  • The geology, biodiversity and ecology of Lake Hövsgöl (Mongolia)

    Goulden, Clyde E.( Role: Joint author)

    Backhuys  2006  ( ISBN:9057821621

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    Total pages:xxi, 525 p.   Language:English  

    CiNii Books

  • 海と湖の化学

    藤永太一郎監修 一色健司・宗林由樹 編( Role: Joint author)

    京都大学学術出版会  2005.3  ( ISBN:4-87698-654-1

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    Total pages:560   Language:Japanese   Book type:Scholarly book

  • 海と湖の化学 : 微量元素で探る

    宗林, 由樹, 一色, 健司, 藤永, 太一郎

    京都大学学術出版会  2005.3  ( ISBN:4876986541

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    Total pages:xxix, 560p   Language:Japanese  

    CiNii Books

  • Marine Environment: The Past, Present and Future

    Chen-Tung Arthur Chen編、著者:中山英一郎、丸尾雅啓ほか多数( Role: Joint author)

    Fuwen Press, Kaohsiung, Taiwan  2002.9  ( ISBN: 957-555-601-1

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    Total pages:516   Language:English   Book type:Scholarly book

  • はかってなんぼ 環境編

    日本分析化学会近畿支部編 (編集委員:紀本岳志・杉山雅人・宗林由樹・丸尾雅啓) (著者:須戸幹、丸尾雅啓ほか14名)( Role: Joint author)

    丸善  2002.8  ( ISBN:4-621-07071-1

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    Total pages:170   Language:Japanese   Book type:Textbook, survey, introduction

  • はかってなんぼ 学校編

    日本分析化学会近畿支部編 (丸尾雅啓ほか13名)( Role: Joint author)

    丸善  2002.3  ( ISBN:4-621-04996-8

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    Total pages:176   Language:Japanese   Book type:Textbook, survey, introduction

  • はかってなんぼ 分析化学入門

    樋上照男、河合潤 編 (丸尾雅啓ほか14名)( Role: Joint author)

    丸善  2000.2  ( ISBN:4-621-04707-8

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    Total pages:170   Language:Japanese   Book type:Textbook, survey, introduction

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MISC

  • Editorial: Hydrobiogeochemistry of major Asian rivers Reviewed

    Tareq S.M., Lu X.X., Shammi M., Maruo M.

    Frontiers in Earth Science   10   2022.11

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    Language:English   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)   Publisher:Frontiers in Earth Science  

    DOI: 10.3389/feart.2022.1065133

    Scopus

    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143314730&origin=inward

  • 琵琶湖集水域のメタロミクス(5)琵琶湖と流入河川における溶存態鉄の存在状態 Invited

    丸尾雅啓

    金属   92 ( 3 )   273 - 278   2022.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:アグネ技術センター  

  • こんにちは 大学共同利用機関法人 総合地球環境学研究所を訪ねて Invited Reviewed

    丸尾雅啓・床波志保

    ぶんせき   2019 ( 540 )   555 - 557   2019.12

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    Language:Japanese   Publisher:日本分析化学会   Participation form:Joint(The main charge)  

  • JASIS関西2019 見聞録 Invited

    田中陽・丸尾雅啓

    ぶんせき   2019 ( 532 )   172 - 173   2019.4

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    Language:Japanese   Publishing type:Meeting report   Participation form:Joint(The vice charge)  

  • 安曇川の水質と花折断層・琵琶湖西岸断層との関係について

    小泉尚嗣, 植田雅大, 箕手慎介, 田中達也, 丸尾雅啓, 三谷寛人

    東濃地震科学研究所報告   ( 42 )   2019

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  • 2,3-ジニトロキニザリンによる金属カチオン応答性の検討

    中川秀美, 竹原宗範, 加藤真一郎, 丸尾雅啓, 北村千寿

    日本化学会春季年会講演予稿集(CD-ROM)   98th   2018

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  • 2,3-ジニトロキニザリンの金属カチオンの添加によるスペクトル変化

    中川秀美, 竹原宗範, 加藤真一郎, 丸尾雅啓, 北村千寿

    光化学討論会要旨集(CD-ROM)   2018   2018

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  • 2,3-ジニトロキニザリンの合成と溶媒依存光物性

    中川秀美, 竹原宗範, 加藤真一郎, 丸尾雅啓, 小野克彦, 藤本和宏, 北村千寿

    基礎有機化学討論会要旨集   28th   2017

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  • Metal speciation in inland waters Invited

    Masahiro Maruo

    Transactions of The Institute of Oceanochemistry   28 ( 1 )   2 - 9   2015.4

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)   Publisher:Institute of Oceanochemistry  

  • こんなところに環境科学部!海洋観測船による南太平洋・南極海研究航海

    丸尾雅啓

    滋賀県立大学環境科学部環境科学研究科年報   ( 19 )   2015

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  • 琵琶湖における新たな水質指標に関する研究

    早川和秀, 岡本高弘, 五十嵐恵子, 五十嵐恵子, 古角恵美, 廣瀬佳則, 一瀬諭, 古田世子, 田中稔, 永田貴丸, 津田久美子, 清水芳久, 日下部武敏, 三崎健太郎, 中野伸一, 藤嶽暢英, 山田悦, 布施泰朗, 田中仁志, 杉山裕子, 丸尾雅啓

    滋賀県琵琶湖環境科学研究センター研究報告書(Web)   ( 10 )   2015

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  • 彦根市北川河口域堆積物を用いた近過去復元の試み

    倉茂好匡, 中野利昭, 丸尾雅啓, 堂満華子

    地形   36 ( 1 )   2015

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  • Chemical analysis of metal complexing ligands in natural waters Invited Reviewed

    Masahiro Maruo

    Bunseki   * ( 470 )   71 - 75   2014.2

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:Japan Society for Analytical Chemistry  

  • フタロシアニナト金属錯体を担持したNAFION膜の過酸化水素による分解挙動

    菊地憲次, 中居司, 原田悟史, 徳満勝久, 丸尾雅啓, 森拓弥, 小森一貴

    成形加工(年次大会)   23rd   2012

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  • 琵琶湖の水環境

    丸尾 雅啓

    機能水研究   6 ( 1 )   11 - 14   2011.4

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:日本機能水学会  

  • 金属フタロシアニナト錯体を用いたパーフルオロスルホン酸膜の過酸化水素による劣化挙動

    原田悟史, 菊地憲次, 奥健夫, 丸尾雅啓

    電気化学会大会講演要旨集   77th   2010

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  • 過酸化水素分解触媒によるパーフルオロスルホン酸膜の耐久性向上

    原田悟史, 菊地憲次, 丸尾雅啓

    電池討論会講演要旨集   51st   2010

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  • 紫外線が琵琶湖の水質へ及ぼす影響評価 紫外線吸収物質と光反応の検討

    早川和秀, 杉山裕子, 和田千弦, 鈴木智代, 鈴木智代, 丸尾雅啓, 永岡一樹, 竹田一彦, 中谷暢丈, 国歳拓, 杉山雅人

    滋賀県琵琶湖環境科学研究センター研究報告書   ( 4 )   2009

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  • 琵琶湖におけるMetallogenium sp.の分布変動とそれに及ぼす環境要因

    松山 文彦, 一瀬 諭, 丸尾 雅啓, 後藤 直成, 三田村 緒佐武

    日本陸水学会 講演要旨集   72   7 - 7   2007

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    Language:Japanese   Publisher:日本陸水学会  

    DOI: 10.14903/jslim.72.0.7.0

    CiNii Research

  • 淡水における金属のスペシエーション

    丸尾 雅啓

    海洋化学研究   18 ( 2 )   65 - 68   2005.11

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:海洋化学研究所  

  • 海水中銅のスペシエーションおよび配位子の解明

    丸尾 雅啓

    月刊 海洋 号外   * ( 39 )   61 - 68   2005.2

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:海洋出版  

  • 海洋における懸濁粒子の化学組成と間隙水を経由する物質の拡散フラックス

    南秀樹・北畑謙一・土井崇史・小畑元・丸尾雅啓・中口譲・加藤義久

    月刊 海洋 号外   * ( 39 )   104 - 113   2005.2

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:海洋出版   Participation form:Joint(The vice charge)  

  • 海洋の微量元素・同位体研究-GEOTRACES計画-2章 微量元素スペシエーション 海水における銅スペシエーションおよび配位子の解明

    丸尾雅啓

    月刊海洋   2005

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  • 環境科学部における国際協力 琵琶湖以外の水圏はどうなっているのか?~長期在外研修・長期出張による研究~

    丸尾雅啓

    滋賀県立大学環境科学部環境科学研究科年報   ( 9 )   2005

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  • 海洋の微量元素・同位体研究-GEOTRACES計画-3章 堆積物と間隙水 海洋における懸濁粒子の化学組成と間隙水を経由する物質の拡散フラックス

    南秀樹, 北畑謙一, 土井崇史, 小畑元, 丸尾雅啓, 中口譲, 加藤義久

    月刊海洋   2005

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  • Study on the alteration of marine environment through the increase of phosphorus and nitrogen load and the decrease of silica in global water circulation system. (2) Study on silica sink in inland water region. 1 Study on the biological and geochemical processes of silica circulation in river and lake.

    三田村緒佐武, 後藤直成, 丸尾雅啓

    地球環境研究総合推進費 平成14年度研究成果 中間成果報告集 3/全5分冊   2003

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  • 撫仙湖、星雲湖の窒素、リンの動態

    坂本 充, 丸尾 雅啓, 村瀬 潤, 杉山 雅人, 早川 和秀, 宋 学良, 張 子雄

    日本陸水学会 講演要旨集   68 ( 0 )   62 - 62   2002

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    Language:Japanese   Publisher:日本陸水学会  

    DOI: 10.14903/jslim.68.0.62.0

  • トピックス:マイクロファブリケーションによる液体クロマトグラフィー用ナノカラムの作製

    丸尾 雅啓

    ぶんせき   294 ( * )   504 - 504   1999.6

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:日本分析化学会  

  • モンゴルの秘境? フブスグル湖 Invited

    丸尾雅啓

    陸水通信(日本陸水学会会員情報誌:陸水学雑誌付録)   ( 20 )   1 - 2   1999.3

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    Language:Japanese   Publisher:日本陸水学会   Participation form:Joint(The main charge)  

  • 16-25 水田土壌の被還元性鉄およびマンガンの測定法に関する再考(16.水田土壌肥よく度)

    村瀬 潤, 丸尾 雅啓, 木村 眞人, 坂本 充

    日本土壌肥料学会講演要旨集   45 ( 0 )   187 - 187   1999

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    Language:Japanese   Publisher:一般社団法人 日本土壌肥料学会  

    DOI: 10.20710/dohikouen.45.0_187

    CiNii Books

  • トピックス:光ファイバーを用いるミクロpHセンサー

    丸尾 雅啓

    化学と工業   50 ( 11 )   1677 - 1677   1997.11

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:日本化学会  

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Other

  • 湖沼調査(山梨県富士河口湖町 西湖)

    2023.10

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(山梨県富士河口湖町 西湖)

    2023.8

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(山梨県富士河口湖町 西湖)

    2021.8

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(長野県阿南町 深見池)

    2019.12

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(山梨県富士河口湖町 西湖)

    2019.8

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(山梨県富士河口湖町 西湖)

    2018.7

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    Classification of research achievement:Fieldwork

    西湖におけるメチルホスホン酸生成の有無に関する調査

  • 湖沼調査(島根県松江市 宍道湖・斐伊川)

    2016.11

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    Classification of research achievement:Fieldwork

    宍道湖におけるチオール濃度の測定

  • 研究航海(南極海)

    2014.12 - 2015.1

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    Classification of research achievement:Fieldwork

    JAMSTEC研究船白鳳丸に乗船、KH14-6次航海において南極海より西経170°に沿って北上し、国際GEOTRACES計画に準じて微量金属元素分布調査のため試料採取、現場におけるFe(II)の定量をおこなった(ニュージーランドウェリントン~南極海南緯64°からニュジーランド・オークランド)。

  • 大韓民国東北部汽水湖における水質調査(夏期)

    2013.8

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    Classification of research achievement:Fieldwork

    「環境負荷が環日本海汽水湖の生態系変動と地球温暖化システムに及ぼす影響解析」 4回目

  • 湖沼調査(鹿児島県 池田湖、さつま湖)

    2013.5

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    鹿児島県池田湖、鰻池、さつま湖等におけるFe(II)の現存量、錯化容量の調査

  • 湖沼調査(白駒池 諏訪湖)

    2012.8

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    Classification of research achievement:Fieldwork

    長野県白駒池、諏訪湖における溶存有機物調査、採取、自然光照射実験

  • 湖沼調査(白駒池 諏訪湖)

    2011.10

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    Classification of research achievement:Fieldwork

    長野県白駒池、諏訪湖における溶存有機物調査、採取

  • 大韓民国東北部汽水湖における水質調査(秋季)

    2009.10

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    Classification of research achievement:Fieldwork

    「環境負荷が環日本海汽水湖の生態系変動と地球温暖化システムに及ぼす影響解析」 3回目

  • 大藪浄水場緩速ろ過処理の適正条件に関する研究

    2009.5 - 2010.3

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  • 大韓民国東北部汽水湖における水質調査(春季)

    2009.4 - 2009.5

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    Classification of research achievement:Fieldwork

    「環境負荷が環日本海汽水湖の生態系変動と地球温暖化システムに及ぼす影響解析」 2回目

  • 大韓民国東北部汽水湖における水質調査(冬季)

    2008.12

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    Classification of research achievement:Fieldwork

    「環境負荷が環日本海汽水湖の生態系変動と地球温暖化システムに及ぼす影響解析」 1回目

  • 大藪浄水場緩速ろ過処理の適正条件に関する研究

    2008.7 - 2009.3

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  • 湖沼調査(鹿児島県 池田湖、鰻池、藺牟田池)

    2008.4

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    Classification of research achievement:Fieldwork

    鹿児島県池田湖、鰻池、藺牟田池におけるFe(II)の現存量と光還元による生成量の調査

  • 研究航海(駿河沖太平洋:国内)

    2006.8

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    Classification of research achievement:Fieldwork

    JAMSTEC研究船淡青丸にて、駿河沖太平洋における鉄(Ⅱ)の生成量調査(東京~清水)

  • 研究航海(南極海)

    2004.12 - 2005.1

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    Classification of research achievement:Fieldwork

    JAMSTEC研究船白鳳丸に乗船し、極海~南西太平洋にかけて、微量金属元素分布調査のため試料採取、イオンクロマトグラフィーによる硝酸イオン分析法の試験をおこなった(オーストラリア・ホバート~ニュジーランド・オークランド)。

  • ADCSV法による水中有機配位子の定量とカナダ西部氷食湖における実態調査

    2003.6 - 2003.11

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    Classification of research achievement:Other

  • 湖沼調査(中国雲南省・撫仙湖、星雲湖)

    2001.6

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    Classification of research achievement:Fieldwork

    撫仙湖、星雲湖の水質調査

  • 研究航海(北太平洋・ベーリング海)

    1999.7 - 1999.8

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    Classification of research achievement:Fieldwork

    JAMSTEC研究船白鳳丸に乗船し、北部太平洋における鉄・マンガン分布調査および現場型マイクロフローアンモニア計の試験をおこなった(東京~USAアラスカ・コディアック)。

  • 研究航海(日本海、三陸沖:国内)

    1998.8

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    Classification of research achievement:Fieldwork

    東京大学研究船白鳳丸にて日本海北部、オホーツク海、三陸沖における微量金属の調査 (小樽 ~ 横浜 ~ 東京晴海)

  • 研究航海(北太平洋・ベーリング海)

    1997.8 - 1997.9

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    Classification of research achievement:Fieldwork

    東京大学研究船白鳳丸に乗船、北北部太平洋における鉄・マンガン分布調査(カナダ・バンクーバー~東京)

  • 湖沼調査(モンゴル・フブスグル湖)

    1997.6 - 1997.7

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    Classification of research achievement:Fieldwork

    フブスグル湖(ムルン県:モンゴル)の水質調査

  • 研究航海(Sulu海・南西太平洋)

    1996.12 - 1997.1

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    Classification of research achievement:Fieldwork

    東京大学研究船白鳳丸に乗船、フィリピン諸島Sulu海、南西太平洋における鉄・マンガン分布調査とアンモニア濃度調査(東京~オーストラリア・フリマントル)

  • 研究航海(南海トラフ:国内)

    1996.3

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    Classification of research achievement:Fieldwork

    東京大学研究船白鳳丸にて南海トラフ付近海域の栄養塩、微量金属の調査(清水 ~ 東京晴海)

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Awards

  • 優秀賞(第34回研究発表会)

    2023.2   日本陸水学会近畿支部会   琵琶湖堆積物に存在する重金属元素の貧酸素状態における挙動

    長鶴拓海, 丸尾雅啓

  • 優秀口頭発表賞:未来開拓枠(日本陸水学会第84回金沢大会)

    2019.9   日本陸水学会   陸水中に存在する各種ホスホン酸および亜リン酸の定量

    辻一真, 丸尾雅啓, 小畑元

Research Projects

  • リン(+III)は湖沼環境のリン循環に寄与するか

    Grant number:21K12209  2021.4

    日本学術振興会  科学研究費助成事業 基盤研究(C)  科学研究費 基盤研究(C)

    丸尾 雅啓

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    Authorship:Principal investigator 

    Grant amount:\1560000 ( Direct Cost: \1200000 、 Indirect Cost:\360000 )

  • 琵琶湖深部湖底における湧水・メタンの形成機構と同湧水が環境に与える影響の評価

    Grant number:23K03494  2023.4 - 2026.3

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    小泉 尚嗣, 山野 誠, 角皆 潤, 笠谷 貴史, 後藤 慎平, 岸 和央, 細井 祥子, 丸尾 雅啓

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

  • 琵琶湖深部湖底湧水の地下構造との関係解明および湖底環境への影響評価

    Grant number:20H01974  2020.4 - 2023.3

    日本学術振興会  科学研究費補助金 基盤研究(B)  科学研究費 基盤研究(B)

    小泉 尚嗣

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Grant amount:\185000 ( Direct Cost: \150000 、 Indirect Cost:\35000 )

  • 海水中リン循環の潜在的要素とされる有機ホスホン酸の定量法開発

    Grant number:R2-12  2020.4 - 2021.3

    公益財団法人海洋化学研究所  伊藤光昌記念学術助成金  研究助成

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    Authorship:Principal investigator 

    Grant amount:\900000 ( Direct Cost: \900000 )

  • 有機態リン再生過程とリン酸-酸素安定同位体解析に基づくリン循環の解明

    Grant number:19K06196  2019.4 - 2022.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    池谷 透, 奥田 昇, 伴 修平, 石田 卓也, 丸尾 雅啓

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    Grant amount:\4420000 ( Direct Cost: \3400000 、 Indirect Cost:\1020000 )

    有機態リンが、リン循環における再生過程でどのように利用されるかを明らかにするために、連結内湖と湖内に流入する2つの水路で試料を採取し、リン酸エステル結合に対して加水分解作用の異なる複数種のリン酸エステラーゼを用いることにより、分解基質濃度を成分ごとに調べるための分析手法を検討した。従来、用いられてきたモリブデン青法では、反応試薬に含まれる硫酸酸性によって有機態リンのかなりの割合が分解されて反応リン(SRP)として検出されるために、リン酸エステラーゼの加水分解で起こる変化を直接捉えることが出来ない。イオンクロマトグラフィーを用いることにより酵素分解反応によって生じるオルトリン濃度変化を測定することで、リン酸エステル結合の違いに基づく有機態リンの成分ごとの把握が可能になった。測定系が成立するうえで、微生物の取り込みや分解による変質を避けた試料の保存や分解反応中に生成するオルトリンの再取り込みの抑制が必要である。そのために、検討試料を現場で採取し、試料調整について検討を進めた。さらに、分解反応条件の検討を経て、有機態リンの濃度を成分ごとに測定することに成功した。
    非灌漑期の試料についてアルカリホスファターゼ・無機ピロホスファターゼ・ホスホジエステラーゼI・5'-ヌクレアーゼによるオルトリンの生成量を求めたところ、これらのリン酸エステラーゼによる分解量はペルオキソ二硫酸カリウムによる分解量の80%程度に相当し、その多くはヌクレアーゼなどジエステラーゼの分解によるもので、モノエステラーゼであるアルカリホスファターゼの分解量は4%程度だった。核酸が基質となるホスホジエステラーゼIと5'-ヌクレアーゼによる分解量はほぼ同じで、ペルオキソ二硫酸カリウム分解量の50%程度だった。無機ピロホスファターゼによる分解量はヌクレアーゼの1.4~1.5倍であることが明らかになった。

  • 栄養塩負荷量と漁業生産の関係:水質総量規制は漁業生産の減少要因か?

    Grant number:18H03961  2018.4 - 2021.3

    日本学術振興会  科学研究費補助金 基盤研究(A)  科学研究費 基盤研究(A)

    伴 修平

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Grant amount:\390000 ( Direct Cost: \300000 、 Indirect Cost:\90000 )

  • 大阪湾圏域における微量金属の分布と有害有毒プランクトン発生への寄与(その2)

    2018.4 - 2019.3

    特定非営利活動法人 瀬戸内海研究会議 大阪湾広域臨海環境整備センター  平成30年度 大阪湾圏域の海域環境再生・創造に関する研究助成制度  提案公募型研究費

    内藤佳奈子、坂本節子、川井浩史

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • 付着藻類群集構造の色素分析による定量化とその変動要因の解明

    Grant number:17K00649  2017.4 - 2020.3

    日本学術振興会  科学研究費補助金 基盤研究(C)  科学研究費 基盤研究(C)

    吉山 浩平

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Grant amount:\130000 ( Direct Cost: \100000 、 Indirect Cost:\30000 )

  • 大阪湾圏域における微量金属の分布と有害有毒プランクトン発生への寄与

    2017.4 - 2018.3

    特定非営利活動法人 瀬戸内海研究会議 大阪湾広域臨海環境整備センター  平成29年度 大阪湾圏域の海域環境再生・創造に関する研究助成制度  提案公募型研究費

    内藤佳奈子、坂本節子、川井浩史

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • Molecular level analysis of trace metal-organic complex using FT ICR MS

    Grant number:16K00521  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    Sugiyama Yuko, Obata Hajime

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    Many trace metals are known to be essential for life. Trace metals are also known to make comlexes with natural organic ligands in aquatic environment. Metal- Although organic complexes control variety of important reactions in bioactivities and material cycles, knowledge of the chemical structures or sources of the organic ligands are limited.
    We succesfully separated the organic ligands from Lake water samples using Immobilized Metal Affinity Chromatography (IMAC) and analyzed the ligands using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS).
    We found that Lignin- Lipid-, and Protein-like molecules were main components of organic ligands separated from lake water DOM using IMAC.

  • Role of Sulfur as Dominant Element to Regulate Behavior of Metals in Freshwater Environment

    Grant number:26340008  2014.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MARUO MASAHIRO, MITAMURA Osamu, SEIKE Yasushi, SUGAHARA Shogo, Md. Rasheduzzaman, OYAMA Waka, KAWAGUCHI Mai

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    Grant amount:\4940000 ( Direct Cost: \3800000 、 Indirect Cost:\1140000 )

    Existence of sulfur containing compounds as ligands for essential trace metals (Fe, Cu) was investigated. Existence of ligands which form highly stable complexes with copper was assured by pseudopolarography for all sampled waters including Lake Biwa (freshwater lake) and Lake Shinji (brackish lake). Determination of sulfur containing compounds in suspended fraction of the samples of Lake Biwa showed the concentration of cysteine in the order of some micromole per liter and that of glutathione in the order of some hundreds nanomole per liter. In the concentration of these two compounds in the samples of Lake Shinji, the order was reversed. From this result, detection of these compounds in dissolved fraction of lake water was expected.

  • Development of hydrothermal-derived trace metals monitoring method in the ocean by using the in-situ auto analyzer

    Grant number:24310006  2012.4 - 2016.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    Hajime Obata, OKAMURA Kei, MARUO Masahiro, GAMOS Toshitaka

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    Grant amount:\17160000 ( Direct Cost: \13200000 、 Indirect Cost:\3960000 )

    We investigated distributions and biogeochemical cycles of trace metals in hydrothermal plumes that have strong influences on dissolved iron budget in the ocean. We first developed a correction method of Fe(II) measurements in hydrothermal plumes by using dissolved oxygen and sulfide concentrations in water samples. Using this correction method, we revealed the vertical Fe(II) distribution at the Juan de Fuca Ridge more accurately. On the other hand, zinc speciation in seawater was examined in the coastal hydrothermal area in Tachibana Bay in Nagasaki, Japan. The Zn distribution was seemingly regulated by existing sulfides and organic ligands in seawater. Moreover, we obtained a vertical Fe(II) distribution to a depth of 1500m in the South Pacific Ocean continuously with an in-situ auto analyzer.

  • Preliminary Study to Reconstruct the History of Water Quality Change of Recent Past

    Grant number:24650605  2012.4 - 2015.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

    KURASHIGE Yoshimasa, MARUO Masahiro

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    Grant amount:\3900000 ( Direct Cost: \3000000 、 Indirect Cost:\900000 )

    The river mouth of Kitagawa Brook is normally stagnant because it is easily closed by sand and gravel transported by littoral currents of Biwa Lake, Japan. A new urban area exists in the basin and sewerage works were constructed in the early 1990s, so contaminated water with a bad odour had flowed into the brook before the sewerage works. To reduce the smell, the river mouth was excavated to narrow the channel in the early 1980s. Thus, river-bed sediment after this excavation only occurs at the river mouth. From the upper 24 cm of a sediment core, we found 19 strata of leaves which were supplied from deciduous trees in autumn. We also found several gravel layers which were supplied from the lake during severe storms. The combination of veins and gravel layers were reconstructed for about 20 years of sediment records with an error of two to three years.

  • Development of toxicity test for algae by exposing recalcitrant dissolved organic matter accumulated in lakes

    Grant number:24510044  2012.4 - 2015.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    HAYAKAWA Kazuhide, SUGIYAMA Yuko, TANAKA Hitoshi, FUJITAKE Nobuhide, MARUO Masahiro

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    Grant amount:\5460000 ( Direct Cost: \4200000 、 Indirect Cost:\1260000 )

    Recalcitrant dissolved organic matter (DOM) is a possible factor of increasing COD in several closed-water areas in Japan, including Lake Biwa. In this study, we conducted to collect fulvic acid in Lake Biwa, and to clarify its chemical properties as a representative of recalcitrant DOM. Furthermore, we examined growth inhibition test of green alga Chlamydomonas, which is one of ecological impact test of chemical substances.
    The results of the algae growth inhibition test using Chlamydomonas, the inhibition effect was not observed on the fulvic acid of Lake Biwa. We concluded that the fulvic acid under existing concentration present concentration in the lake was no inhibition effect for aquatic organisms, suggested by the present study and crustaceans and fish inhibition tests in another researches.

  • Identification of metal ligands and their producers affecting ecosystem in Lake Biwa

    Grant number:23510010  2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MARUO MASAHIRO, OBATA Hajime, TANVEER Ahmed, OYAMA Waka

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    Grant amount:\4420000 ( Direct Cost: \3400000 、 Indirect Cost:\1020000 )

    Detection of "strong" ligand for copper in freshwater was investigated by pseudopolarography. This method was applied to freshwaters sampled in north basin of Lake Biwa and Lake Teganuma. In surface water of Lake Biwa, strong ligand like EDTA was detected, while highly strong ligand that was estimated to have logK around 30 was detected in waters sampled at 1m and 15m.
    By analyzing water of Lake Teganuma, copper was added immediately after sampling and filtration. In this case, existence of very strong ligand that was not detected within the range of reduction potential applicable in pseudopolarography was suggested. This phenomenon was not clearly observed by analysis of the same water in which copper was added 24hrs later. This fact suggests the existence of labile and very strong ligand like sulfide.

  • Study of bioiogeochemical cycles of Fe(II) in the ocean by using an in-situ analyzer

    Grant number:21310007  2009 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    OBATA Hajime, OKAMURA Kei, MARUO Masahiro

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    Grant amount:\17420000 ( Direct Cost: \13400000 、 Indirect Cost:\4020000 )

    For understanding of the biogeochemical cycles of iron in the ocean, a new in-situ analytical system was developed to determine picomolar of Fe(II) in seawater by using luminol chemiluminescence detection. The detection limit was about 10 pM. We successfully revealed the Fe(II) distributions in the surface waters of the Pacific Ocean with this system.

  • Environmental Factors controlling active variation in Iron (II) concentration in Lake Biwa

    Grant number:19510010  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MARUO Masahiro

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    Grant amount:\3250000 ( Direct Cost: \2500000 、 Indirect Cost:\750000 )

    Vertical profiles of Fe(II) that might affect the primary production, in the North Basin of Lake Biwa was obtained between 2007-2009. We studied the relationship between Fe(II) concentration, dissolved organic matter (humic substances), and light intensity. Complexation of Fe(II) was suggested because Fe(II) concentration obtained by chemiluminescence was very much smaller that obtained from photometric determination using PDTS. Below the euphotic zone of Lake Biwa, strong correlation between Fe(II) and humic substances concentration was obtained. Existence of humic substances in the lake water retarded the oxidation of Fe(II) probably because of complex formation

  • ENVIRONMENTAL SCIENTIFIC EVALUATIION OF PHOTOCHEMICAL REACTIONS IN NATURAL WATER

    Grant number:17310010  2005 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    OHTA Keiichi, SHUHEI Ban, SUDO Mike, MARUO Masahiro

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    Grant amount:\16300000 ( Direct Cost: \15100000 、 Indirect Cost:\1200000 )

    Aquatic photochemical reactions caused by sunlight are important as a natural removal process for dissolved organic matter (DOM) in water. Little is known, however, about photo-degradation mechanism of humic substances (HS), a major constituent of DOM, and its influence on the photo-degradation of organic pollutants. We conducted field observations in Lake Biwa and inflowing rivers and made laboratory experiments to clarify following points;(a)contribution of photochemical reactions to the distribution of HS in Lake Biwa,(b)photo-degradation of nonyl phenols and other pollutants, (c) photo-degradation and distribution of pesticides in the lake, (d) photo-degradation of DOM in effluent from the waste-water treatment plants, and (e) influence of photo-reactions and DOM on the distribution of iron in the lake.
    Throughout the present study, we obtained following results.
    (1) Photochemical degradation of HS results in their lower concentrations at the surface water layer in Lake Biwa as compared to deeper layers.
    (2) The fluorophore of HS is of higher sensitivity to photo-degradation than chromophore, and photo-degradation of carbon bond take places later. These degradation reactions proceed in the first-order reaction kinetics with reaction rate constants ranging from 0.01 to 0.04.
    (3) Nonyl phenols and phosphate-esters in water are easily degradable on photo-reaction which is influenced by HS.
    (4) The pesticides being resistant to photo-reaction can survive for long time, and they are thus detected in Lake Biwa water throughout the whole year.
    (5) HS in the effluent from waste-water treatment plants emits strong fluorescence. They are easily photo-degraded, showing a possibility that photoreactions can be applicable to high-grade treatment of waste water.
    (6) Heavy metals like iron form complexes with DOM, which can be susceptible to the photochemical alteration.

  • Effects of metal complexing organic compounds on elemental cycles in Lake Biwa, Japan and identification of these compounds.

    Grant number:16510008  2004 - 2006

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MARUO Masahiro

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    Grant amount:\2200000 ( Direct Cost: \2200000 )

    Copper complexing capacities of freshwaters in Lake Biwa and River Amano that is an inflowing river, were determined by adsorptive cathodic stripping voltammetry using ligand competition. In June 2004, primary production was high and complexing capacities were also high throughout the water column. In August 2004, complexing capacity of the water in epilimnion was low compared with that of hypolimnion. This difference in concentration was caused by mass of discharged water from river flooding or photolysis of organic ligands. Complexing capacities of both layers in October were almost the same as those of water of R. Amano sampled in September. Estimated from the stability of allochthonous organic compounds from rivers which mainly consist of humic substances, increase in complexing capacity in the epilimnion was caused by the production of autochthonous organic compounds in the lake. Free copper ion concentration [Cu^<2+>] was estimated to be always below 10^<-12> moll-1.Organic complexes with copper account for more than 99.9% of total copper.
    Fe(II) concentration was also investigated in Lake Biwa and inflowing rivers by using ferrozine-Fe(II) complex formation and column extraction. In Lake Biwa, dissolved Fe(II) showed maximum value in surface water presumably because of photoreduction of Fe(IIII). Dissolved form of Fe(II) accounts for 20-30% of total dissolved Fe. As for Fe(II) in the inflowing rivers, almost all Fe(II) existed as dissolved form. Considering from the Fe(II) concentration and pH, Fe(II) was continuously supplied to the river by discharged water. Investigation of the relationship between Fe(II) and organic compounds that functions as a mediator of photoreduction of Fe(III) is now in progress in the lake.

  • The role of marine photochemical reactions in removal of dissolved material in the Yellow Sea

    Grant number:13574016  2001 - 2003

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    OHTA Keiichi, TAKEDA Kazuhiko, SAKUKAWA Hiroshi, MARUO Masahiro

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    Grant amount:\13700000 ( Direct Cost: \13700000 )

    The Yellow Sea is one of coastal marine areas where inflows and removal of natural and anthropogenic material are most active in the world. In order to evaluate the role of photochemical reactions in removing dissolved matter in water, we conducted field observations and simulation experiments as follows.
    1.Satellite observation (SeaWiFS Level 3 data) for the distribution of terrestrial humic substances in the Yellow Sea and East China Sea.
    2.Field observations by the research vessels of Korea Ocean Research and Development Institutes in the Yellow Sea in 2001 and 2002.
    3.Field observations in the Seto Inland Sea and surrounding rivers to compare the material dynamics with the Yellow Sea.
    4.Photochemical experiments using sun and artificial lights to simulate photoreactions in the Yellow Sea.
    Following results were obtained from the above-described observations and experiments.
    1.The humic concentrations in the Yellow Sea decrease with the distance from the coast, showing lower levels in summer than autumn.
    2.Similar features are observed in the Seto Inland Sea, suggesting the dilution and photoreactions should affect humic distribution in water.
    3.Distribution patterns of carbon monoxide and hydrogen peroxide clearly supported the photochemical reactions to proceed in water.
    4.Organic compounds with unknown structures were suggested to be responsible for OH radical generation in the Yellow Sea.

  • アジアモンスーン域湖沼保全のための水質環境動態にかかわる調査研究

    2000.4 - 2001.3

    日本生命財団  環境問題研究助成 

    坂本 充, 手塚泰彦, 奥田節夫, 熊谷道夫, 大久保賢治, 村瀬潤, 焦春萌, 早川和秀, 辻村茂男, 宋学良, 丸尾雅啓

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • 可溶性窒素化合物の大気圏・雪氷圏での動態解析

    Grant number:12680536  2000 - 2002

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    神山 孝吉, 伊藤 一, 丸尾 雅啓, 中山 英一郎, 古川 晶雄, 五十嵐 誠, 本山 秀明

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    Grant amount:\2900000 ( Direct Cost: \2900000 )

    溶存性窒素化合物は、植物などの栄養素としてまた富栄養化物質として地球生命圏にとって重要な元素である。溶存性窒素化合物はそれぞれ酸化・還元作用などを受け、溶存有機態窒素・アンモニア態窒素・亜硝酸態窒素・硝酸態窒素等に形態を変化させている。
    酸化・還元作用を受けやすい非保存性物質である大気・降雪・積雪試料中の溶存性窒素化合物に着目し、その挙動を解析する。併せて大気中・降水中・積雪表面の各境界層・積雪内部層、積雪土壌境界層で生じている非保存性物質の物理的過程、化学的過程などに着目し、酸化・還元反応が卓越する地球上の場としての境界領域の特殊性を明らかにしてきた。フィールドでの測定の迅速化に努め、試料採取後の形態変化を最小限に抑えるべく検討を続けた。
    試料処理方法の再検討(室内実験):昨年度積雪資料保存時の亜硝酸イオンの増加の可能性について検討した.亜硝酸は不安定であるが、時として亜硝酸極大が観測されるので、今後環境の指標としての有効性を検討する有効な材料であることが判明した.
    試料解析方法の検討(野外実験支援):安定剤(HgCl2)を混入して保管・冷蔵保管・冷凍保管して、直ちに測定した試料と比較した.安定剤による微生物作用の抑制効果を実験的に明らかにし、可溶性窒素化合物の変動を引き起こす活性化物質としてCaの意義が明確になった.天候条件のため十分な野外観測が行えず試料を外気に触れさせずに保管することは出来なかった.
    試料解析手法の検討(室内実験):積雪の層状試料であるコア試料中の可溶性窒素化合物を細かく測定するため、融解方法とサンプリング手法の検討を行い、マイクロフロー分析に結びつける前段階としての方法論を確立した.今後本方法に基づいて各層の化学的相互作用と化学変動過程・物理的拡散過程の検討を行う体制が出来た.
    以上、降水中の可溶性窒素化合物について室内実験及び野外実験の支援方法が確立でき、今後実際の現地観測に化学的変動過程を反映させることによって、大気の気象学的変動に依存するトリチウム解析を加え、大気圏・水圏の化学的変動過程・気象学的変動過程が議論できる.

  • Role of diatom bloom irf marine ecosystem

    Grant number:12480145  2000 - 2001

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    BAN Shuhei, ISODA Yutaka, KUDO Isao, MARUO Masahiro

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    Grant amount:\13900000 ( Direct Cost: \13900000 )

    We examied zoo-and phytoplankton biomass, bacterial biomass, primary production, bacterial production, meso- and microzooplankton grazing during the period from pre- to post-spring-diatom bloom in Funka Bay, Hokkaido, Japan, to clarify the fate of spring diatom bloom. Diatom bloom started in February at 3 - ℃, lasted by mid-March. During the blooming period, mesozooplankton biomass was alyways low, and consequently its grazing was also quite low level. Microzooplankton increased during the blooming period, but did not graze diatoms Whereas, bacterial production increased during the bloomin period, but its biomass was constant. Using these results, we estimated the carbon budget through food web in the bay. During the blooming period, carbon produced by diatoms was carcely transported to mesozooplankton through grazing food chain due to low mesozooplankton biomass, while microbial loop dominated through bacterial production usingdissolved organic carbon (DOC) from diatoms. On the contrary, after the bloom, two distinct loops existed, i. e. one is dinofragellates to mesozooplankton though regenerated inorganic nutrients by mesozooplankton, while another one is bacteria to protists to mesozooplankton through DOC excreted by mesozooplankton. These results suggest that spring diatom bloom supports indirectly mesozooplankton production through DOC excreted by diatoms, while after the bloom nutrients and DOC regenerated by mesozooplankton supported dinofragellate production and subsequently mesozooplankton themselves.

  • 犬上川の生態系保全に関わる調査研究

    Grant number:11-1-3-40  1999.4 - 2001.3

    河川環境管理財団  河川整備基金助成 

    安野正之, 丸尾雅啓, 他

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • 河川の化学的水質と水辺生物環境との関係に関する研究と環境教育への展開

    1997.4 - 1999.3

    日本生命財団  環境問題研究助成 

    松村竹子, 丸尾雅啓, 他

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • DEVELOPMENT OF IN SITU AMMONIUM ANALYZER TO INVESTIGATE NUTRIENT DYNAMICS IN MARINE ECOSYSTEM

    Grant number:09358011  1997 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

    TERAZAKI Makoto, SUZUKI Yoshimi, KIMURA Shingo, SUGIMOTO Takashige, MARUO Masahiro, NAKAYAMA Ei-ichiro

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    Grant amount:\22300000 ( Direct Cost: \22300000 )

    The object of this research is to develop in situ automatical continuous ammonium measuring system for investigating nutrient dynamics related biological production and food chain in marine ecosystems. This system is employed with drifting buoy in the ocean. There is few difference of sensitivity between this system and previous manual methods in the loboratory. We could get high stability and high detection sensitivity by improvement of flow-cell, amount of chemical regents and tubules. Test operation of this system was carried out in the large outdoor tank with 3 m on February 2000 and we coud collect data every one hour is sute.

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Presentations

  • 滋賀県立大学における研究倫理教育の取り組み

    浦部美佐子, 原田英美子, 畠佐代子, 高倉耕一, 西田隆義, 丸尾雅啓, 三雲悟志

    第93回日本寄生虫学会大会  2024.3  日本寄生虫学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  • Small size of microplastics in waters of inflows and Lake Biwa, Japan

    丸尾雅啓、守屋優作

    第19回世界湖沼会議  2023.11 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 淡水湖におけるメチルホスホン酸の定量と分布

    丸尾雅啓, 山本知季, 小畑元, 岩田智也

    日本陸水学会 第87回 大分大会  2023.10 

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    Event date: 2023.10

    Language:Japanese   Presentation type:Poster presentation  

  • 琵琶湖におけるリン酸イオン濃度とSRP(溶存反応性)リンの比較

    藤山信太郎, 辻一真, 山中裕貴, 小畑元, 丸尾雅啓

    日本陸水学会第86回大会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 水質はどうあるべきなのか 京都芸術大学編

    丸尾雅啓

    京都芸術大学大学院 芸術分野特論9  2021.11 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 共同沈殿濃縮法-イオンクロマトグラフィーを用いる天然水中メチルホスホン酸の定量

    山本知季, 小畑元, 丸尾雅啓

    日本陸水学会第85回大会  2021.9 

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    Event date: 2021.9

    Presentation type:Oral presentation (general)  

  • 生命システム科学特別講義:陸水中のリンの形態と分析-それって食べれるの-

    丸尾雅啓

    県立広島大学大学院総合学術研究科生命システム科学専攻 生命システム科学特別講義  2021.6 

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    Event date: 2021.6

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 滋賀県の安曇川と周辺の湧水の水質に及ぼす活断層の影響-2

    小泉尚嗣, 忍田奈津子, 谷口和真, 丸尾雅啓

    日本地球惑星科学連合2021年大会:JpGU2021  2021.6 

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    Event date: 2021.5 - 2021.6

    Presentation type:Poster presentation  

  • 水質はどうあるべきなのか

    丸尾雅啓

    2020年度びわ湖東北部地域生涯学習講座 教養コース 第9回 講演会:オンデマンド  2021.1 

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    Event date: 2021.1 - 2021.3

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 瀬戸内海東部海域における赤潮原因プランクトンおよび微量金属の分布と挙動

    内藤佳奈子, 甲斐和佳, 坂本節子, 丸尾雅啓, 三戸彩絵子

    2020年日本プランクトン学会・日本ベントス学会 合同大会  2020.9 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Poster presentation  

  • 琵琶湖の水の今とこれから Invited

    丸尾雅啓

    彦根ロータリークラブ例会  2023.3  彦根ロータリークラブ

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 微量元素の存在形態、金属と有機物の相互作用(水圏化学、分析化学) Invited

    丸尾雅啓

    硫酸協会第60回分析分科会講演会  2023.3  硫酸協会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(滋賀県立大学)  

  • 琵琶湖堆積物に存在する重金属元素の貧酸素状態における挙動

    長鶴拓海,丸尾雅啓

    日本陸水学会近畿支部会第34回研究発表会  2023.2  日本陸水学会近畿支部会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山理科大学(岡山市)  

  • 東北沖における堆積物中微量金属元素の堆積過程 International conference

    佐藤航,小畑元,南秀樹,丸尾雅啓

    東海大学札幌キャンパス・オリジナル企画 第3回「研究・作品展示交流会 in SAPPORO 2022」  2023.2  東海大学

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:東海大学札幌キャンパス(札幌市)  

  • 琵琶湖周辺内湖における可分解性溶存有機態リン動態と現場分解活性

    池谷透,易容,伴修平,丸尾雅啓,石田卓也,奥田昇

    日本陸水学会第86回兵庫大会  2022.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:兵庫県立大学環境人間学部(オンライン開催)  

  • 琵琶湖におけるリン酸イオン濃度とSRP(溶存反応性リン)の比較

    藤山信太郎,辻一真,山中裕貴,小畑元,丸尾雅啓

    本陸水学会第86回兵庫大会  2022.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:兵庫県立大学環境人間学部(オンライン開催)  

  • 陸水中メチルホスホン酸の極微量定量法開発と動態

    山本知季,辻一真,山中裕貴,小畑元,岩田智也,丸尾雅啓

    本陸水学会第86回兵庫大会  2022.9  日本陸水学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:兵庫県立大学環境人間学部(オンライン開催)  

  • 瀬戸内海東部海域における有害珪藻の発生と微量金属の挙動

    内藤佳奈子,甲斐和佳,宗近結花,坂本節子,丸尾雅啓,三戸彩絵子,川井浩史

    令和4年度日本水産学会秋季大会  2022.9  日本水産学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:フェニックス・シーガイア・リゾート(宮崎市)  

  • 西日本の湖沼における白金濃度分布と挙動

    丸井滉貴, 眞塩麻彩実, 黄国宏, 丸尾雅啓, 小室隆, 長谷川浩

    第39回分析化学中部夏期セミナー  2022.8  日本分析化学会中部支部

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:石川県青少年総合研修センター(石川県金沢市)  

  • Improvement of thermally activated biochar with calcium from natural source for phosphorus recovery from waste water and its effectiveness as fertilizer International conference

    Protima Sarker, Masahiro Maruo, Xin Liu, Naoki Hata

    The 6th International Congress on Water, Waste and Energy Management (WWEM-22)  2022.7 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Università degli Studi Niccolò Cusano, Rome, Italy  

  • 湖沼における白金分布と挙動

    丸井滉貴、眞塩麻彩実、黄国宏、丸尾雅啓、小室隆、長谷川浩

    日本分析化学会第82回分析化学討論会  2022.5  日本分析化学会

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:茨城大学(茨城県水戸市)  

  • 琵琶湖北湖におけるリン酸イオンとSRPの比較

    藤山信太郎,辻一真,山中裕貴,小畑元,丸尾雅啓

    日本陸水学会近畿支部会第33回研究発表会  2022.3  日本陸水学会近畿支部会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:滋賀県立大学共通講義棟(A7)  

  • Effect of dissolved organic matter on the speciation of Fe(II) in water of Lake Biwa Invited

    Masahiro Maruo, Waka Oyama, Hajime Obata

    2021.11 

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    Language:English   Presentation type:Oral presentation (general)  

  • イオンクロマトグラフィーを用いた有機態リンの酵素加水分解定量

    池谷透,丸尾雅啓

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京農工大学主催)  

  • イオンクロマトグラフィーを用いた正リン酸のナノモル測定と琵琶湖北湖における時空間分布

    刘鑫,易容,丸尾雅啓,伴修平

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京農工大学主催)  

  • 栄養塩負荷量と漁業生産の関係:水質総量規制は漁業生産の減少要因か?−概要と趣旨説明

    伴修平,刘鑫,後藤直成,尾坂兼一,丸尾雅啓,小野寺真一,石田卓也,齋藤光代, 奥田昇

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京農工大学主催)  

  • 琵琶湖水中における極微量正リン酸・SRP濃度の定量

    藤山信太郎,小畑元,丸尾雅啓

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Venue:オンライン開催(東京農工大学主催)  

  • 共同沈殿濃縮法-イオンクロマトグラフィーを用いる天然水中メチルホスホン酸の定量

    山本知季,小畑元,丸尾雅啓

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京農工大学主催)  

  • 河川付着藻類群集の色素分析による定量化とその変動要因

    西村洋子,吉山浩平,打越崇子,大塚泰介,泉野央樹,木本裕也,丸尾雅啓

    日本陸水学会第85回大会  2021.9  日本陸水学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京農工大学主催)  

  • 滋賀県の安曇川の水質に及ぼす活断層の影響

    小泉尚嗣,忍田奈津子,谷口和真,丸尾雅啓

    日本地球惑星科学連合2021年大会:JpGU2021   2021.6  日本地球惑星科学連合

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催  

  • 水酸化鉄(III)共沈濃縮法による琵琶湖水中溶存態メチルホスホン酸の検出

    山本知季,辻一真,山中裕貴,丸尾雅啓,小畑元

    日本地球惑星科学連合2021年大会:JpGU2021   2021.6  日本地球惑星科学連合

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン開催  

  • ファンデフーカ海嶺熱水域における微量金属元素の堆積過程

    南秀樹,長鶴拓海,鄭臨潔,丸尾雅啓,小畑元

    GEOTRACES-Japanシンポジウム 「微量元素・同位体を用いた海洋生物地球化学研究の推進と新しい展開に向けて」  2021.3  東京大学大気海洋研究所 海洋無機化学研究室

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催(東京大学大気海洋研究所)  

  • 淡水域における元素の存在形態 Invited

    丸尾雅啓

    平成30年海洋科学若手の会  2018.9  日本海洋学会:若手の会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:みくに館(高島市マキノ)  

  • Determination of Trace Methylphosphonate in Freshwater by Ion Chromatography International conference

    Kazuma Tsuji, Hajime Obata, Masahiro Maruo*

    SIL 34th International Congress (International Society of Limnology)  2018.8  International Society of Limnology

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    Language:English   Presentation type:Poster presentation  

    Venue:Nanjing International Expo Convention Center, Nanjing, Jiangsu, China  

  • 陸水における鉄・銅のスペシエーション Invited

    丸尾雅啓

    平成29年度高知地区分析技術懇談会講演会  2017.12  高知地区分析技術懇談会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:高知大学朝倉キャンパス  

  • Determination of Dissolved and Particulate Thiols in Lake Biwa Water and Extracted Fulvic Acid by HPLC-Fluorescence Detection with SPE Invited International conference

    Md. Rasheduzzaman, Masahiro Maruo

    3rd SUT-USP Joint Symposium on Environmental Science  2017.12  滋賀県立大学環境科学部環境生態学科

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:滋賀県立大学  

  • “びわ湖の水をはかる”

    丸尾雅啓

    滋賀県教育委員会主催 高大連携事業 大学連続講座  2017.8 

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • Comparison between soluble reactive phosphorus and orthophosphate concentrations in lake waters International conference

    Rong Yi, Masahiro Mauro, Peixue Song, Syuhei Ban

    The 17th International Symposium on River and Lake Environments (ISRLE2014)   2017.3  Japan Society of Limnology

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:立命館大学  

  • Development of analytical methods for chemical speciation of nutritious elements Invited International conference

    Masahiro Maruo

    2nd SUT-USP Joint Symposium on Environmental Science  2017.2  Univertsity of SantoThomas, Manila Philippines

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Univertsity of SantoThomas, Manila Philippines  

  • Determination of nanomolar levels of phosphate in water of P-limited lake in Japan (Lake Biwa) bu ion chromatography International conference

    Maruo M., Miyashita H., Ishimaru M., Obata H.

    SIL2016 (33rd SIL Congress)  2016.8  SIL (International Society of Limnology)

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    Language:English   Presentation type:Poster presentation  

    Venue:Lingotto Congress Center, Torino, Italy  

  • Determination of trace orthophosphate in water of Lake Biwa (Japan) by ion chromatography International conference

    Maruo M., Ishimaru M., Azumi Y., Ohyama K.,Obata H.

    25th Goldschmidt 2015  2015.8  European Association of Geology, Geological Society (USA), The Geological Society of Japan

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    Venue:Prague, Checz  

  • Characterization of highly strong metal binding ligands in waters of natural lakes in Japan and Korea by electroanalysis International conference

    Maruo M, Obata H, Mitamura O, Akatsuka T, Amahashi N, Azumi H, Shin H-S, Seike Y, Sugahara S, Yagi A, Oyagi M, Ishida N, Somiya R, Choi J-K

    The 16th International Symposium on River and Lake Environments (ISRLE2014)   2014.8  Korean Society of Limnology

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    Language:English   Presentation type:Poster presentation  

    Venue:Ladena Resort, Chuncheon, Kanwong-do, Korea  

  • 陸水における金属の化学スペシエーション Invited

    丸尾雅啓

    第34回石橋正義先生記念講演会  2014.4  一般財団法人 海洋化学研究所

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学百周年時計台記念館  

  • Speciation of Iron(II) in oxic freshwater Lake Biwa, Japan International conference

    Maruo M., Oyama W., Obata H., Nagaoka K., Yaginuma Y., Mase A., Wakiyama S.

    SIL XXXII (SIL2013)  2013.8  International Society of Limnology

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    Language:English   Presentation type:Poster presentation  

    Venue:Budapest, Hungary  

  • 陸水中における溶存Fe(II)の挙動と形態について Invited International conference

    丸尾雅啓

    第13回陸水化学・分析化学懇話会  2013.1  日本分析化学会中国四国支部

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:島根大学  

  • Investigation of highly strong copper complexing ligands in lake water by peudopolarography International conference

    丸尾 雅啓

    The 15th International Symposium on River and Lale Environments,  2012.10  FEBL China, IHB Chinese Acedemy of Sciences, SIL(International Society of Limnology) etc.

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    Language:English   Presentation type:Poster presentation  

    Venue:Zhanjiajie, Hunan, China (中国湖南省張家界)  

  • Optical Characteristics and Molecular Weight Distributions of Whole Natural Organic Matter in Lake BIWA and Other Freshwater Systems in Japan - An Indication of NOM Sources and Speciation International conference

    丸尾 雅啓

    ASLO Aquatic Science Meeting 2012  2012.7  ASLO

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    Venue:大津(滋賀)  

  • Comparison of Determination Methods of Iron(II) in Freshwater of Lake Biwa, Japan, in Consideration of Organic Complexation International conference

    丸尾 雅啓

    ASLO Aquatic Science Meeting 2012  2012.7  ASLO

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    Venue:大津(滋賀)  

  • Azo Dye Binding Interactions with Freshwater and Treated Wastewater Dissolved Organic Matter International conference

    丸尾 雅啓

    Sixth International Conference on Environmental Science and Technology  2012.6  ACS (American Cemical Society)

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    Language:English   Presentation type:Poster presentation  

    Venue:Houston, Texas, USA  

  • 好気的水環境中におけるFe(II)の挙動と支配因子

    丸尾雅啓

    研究集会「雪氷の生態学(6)尾瀬地域におけるアカシボの成因と構成生物群  2011.11  アカシボ研究会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道大学  

  • Binding Interaction of 1-Napthol with the Dissolved Organic Matter of Lake Biwa and Treated Sewage Wastewater: A Comparative Analysis based on UV-Visible and Fluorescence Characteristics International conference

    丸尾 雅啓

    International Conference on Environmental Pollution and Remediation, ICPER2011  2011.8  SETAC (Society of Environmental Toxicology and Chemistry), USA etc.

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    Language:English   Presentation type:Poster presentation  

    Venue:Ottawa, Ontario, Canada  

  • Automated in-situ flow analytical method of Fe(II) in seawater using luminol chemiluminescence detection International conference

    丸尾 雅啓

    ICAS2011, IUPAC International Congress on Analytical Sciences  2011.5  日本分析化学会、IUPAC 他

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    Language:English   Presentation type:Poster presentation  

    Venue:京都市  

  • Comparative Study of the Determinations of Iron(II) in Freshwater by Luminol Chemiluminescence and Spectrophotometry Using PDTS International conference

    丸尾 雅啓

    ICAS2011, IUPAC International Congress on Analytical Sciences  2011.5  日本分析化学会、IUPAC 他

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    Language:English   Presentation type:Poster presentation  

    Venue:京都市  

  • Chemical Characterization of Dissolved Organic Matter in Lake Biwa Using C18 Solid Phase Extraction International conference

    丸尾 雅啓

    PACIFICHEM2010  2010.12  日本化学会、日本分析化学会、ACS 他

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    Language:English   Presentation type:Poster presentation  

    Venue:Honolulu, Hawaii, USA  

  • 琵琶湖の水環境

    丸尾 雅啓

    第9回 日本機能水学会学術大会  2010.10  日本機能水学会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:大津  

  • Vertical and horizontal distribution of grain size in the bottom sediment and GPS based morphological characteristics of two Korean brackish lakes (Young-rang and Hwajin-po) International conference

    丸尾 雅啓

    The 18th KSL Conference and International Symposium: Ecosystem Health Assessment in Lakes and Reservoirs, Korea  2010.2  Korean Society of Limnology

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    Language:English   Presentation type:Poster presentation  

    Venue:Chuncheon, Korea  

  • 溶存有機物が制御する金属元素の動態~琵琶湖の場合~

    丸尾 雅啓

    水圏の腐植物質研究会  2008.11  日本分析化学会近畿支部・近畿分析技術研究懇話会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:兵庫県神戸市  

  • Role of humic substances in metal complexation in freshwater of Lake Biwa (Japan) International conference

    丸尾 雅啓

    ASLO Summer Meeting 2008  2008.6  ASLO

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:St. Jhon's, NL, Canada  

  • 水圏環境における銅の存在状態

    丸尾 雅啓

    JIME 海洋環境と船舶塗装研究委員会 第5回研究会  2007.11  日本マリンエンジニアリング学会 海洋環境と船舶塗装研究委員会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:神戸大学海事科学部(兵庫県神戸市東灘区)  

  • 水圏における化学種別分析

    丸尾 雅啓

    プラズマ分光分析研究会 第70回講演会-生命科学と環境科学への展開 -  2007.4  プラズマ分光分析研究会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京都文京区  

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Teaching Experience

  • Advanced Material Chemistry D

    2019.8 Institution:Shimane University

  • Experiments of Inorganic Chemistry & Analytical Chemistry

    2018.10 - 2024.3 Institution:Nara University of Education

  • Advanced Material Chemistry C

    2013.1 Institution:Shimane University

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    Level:Postgraduate 

  • 環境フィールドワークⅢ

    2012.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境解析学・同実験

    2011.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境生態学特別実習

    2011.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境生態学基礎演習

    2010.10 Institution:滋賀県立大学

  • 環境化学実験(コンピュータ活用を含む)

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 人間探求学(環境生態)

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (liberal arts) 

  • 環境化学Ⅰ

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 卒業研究Ⅱ

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 卒業研究Ⅰ

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境生態学演習Ⅱ

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境生態学演習Ⅰ

    2010.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境フィールドワークⅡ

    2008.4 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 生態系影響論

    2008.4 - 2017.3 Institution:滋賀県立大学

  • 環境毒性学

    2008.4 - 2015.3 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境化学・実験

    2008.4 - 2012.3 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 化学Ⅱ

    2008.4 - 2012.3 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 環境フィールドワークⅢ

    2008.4 - 2012.3 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 化学実験

    2008.4 - 2010.3 Institution:滋賀県立大学

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    Level:Undergraduate (specialized) 

  • 人間探求学

    2007.4 Institution:滋賀県立大学

  • 人間探求学

    2007.4 - 2008.3 Institution:滋賀県立大学

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    Level:Undergraduate (liberal arts) 

  • Chemistry for Environmental Sciences

    2006.4 Institution:The University of Shiga Prefecture

  • Ecotoxicology

    2005.12 Institution:The University of Shiga Prefecture

  • Basic Experiments for Environmental Education

    2004.10 - 2005.3 Institution:Shiga University

  • 環境フィールドワークⅢ

    1997.10 Institution:滋賀県立大学

  • Chemical Analysis for Environmental Sciences

    1997.4 Institution:The University of Shiga Prefecture

  • English Studies for Science

    1997.4 Institution:The University of Shiga Prefecture

  • 環境フィールドワークⅡ

    1996.4 Institution:滋賀県立大学

  • Chemical Experiments for Environmental Sciences

    1995.10 Institution:The University of Shiga Prefecture

  • 環境学野外実習Ⅰ・Ⅱ・Ⅲ(自然環境特別実習)

    1995.4 Institution:滋賀県立大学

  • 環境フィールドワークⅠ

    1995.4 - 1998.9 Institution:滋賀県立大学

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Social Contribution

  • びわこのはなし

    Role(s): Lecturer

    聖ヨゼフ幼稚園  2024.2

  • JICAプログラム講義 湖沼学基礎(Fundamentals of Limnology)

    Role(s): Lecturer

    国際湖沼委員会  滋賀県立大学環境科学部  2024.1

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    Type:Research consultation

    JICA研修プログラムにおける講義

  • 琵琶湖トラスト 座学の講義

    Role(s): Lecturer

    非営利活動法人 びわ湖トラスト  ジュニアドクター育成塾  大津港ターミナルビル2階 大津港びわ湖トラスト研究室  2023.9

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    Audience: Schoolchildren, Junior students, High school students

    Type:Visiting lecture

    JST ジュニアドクター育成塾における 講義(琵琶湖と水質について)

  • JICAプログラム講義 湖沼学基礎(Fundamentals of Limnology)

    Role(s): Lecturer

    国際湖沼委員会  滋賀県立大学(オンライン)  2022.9

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    Type:Research consultation

    JICA研修プログラムにおける講義

  • JICAプログラム講義 湖沼学基礎(Fundamentals of Limnology)

    Role(s): Lecturer

    国際湖沼委員会  JICA課題別研修「水資源の持続可能な利用と保全のための統合的湖沼・河川・沿岸流域管理」  滋賀県立大学環境科学部  2019.8

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    Type:Research consultation

    JICA研修プログラムにおける講義