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Title |
Professor |
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Research Fields, Keywords |
limnology,Geochemistry,Material Cycle |
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Mail Address |
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GOTO Naoshige
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Graduate School 【 display / non-display 】
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Nagoya University Graduate School, Division of Natural Science Doctor's Course 2000.03
Campus Career 【 display / non-display 】
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University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Professor 2022.04 - Now
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University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Associate Professor 2009.11 - 2022.03
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University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Assistant Professor 2007.04 - 2009.10
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University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies Research Assistant 2001.06 - 2007.03
Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display 】
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Meteorology/Physical oceanography/Hydrology
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Aquatic bioproduction science
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Environmental dynamic analysis
Research theme 【 display / non-display 】
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Measurement of primary production by phytoplankton using optical methodology
Papers 【 display / non-display 】
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An Estimation of Precipitation Retention Time Using Depth Metres in the Northern Basin of Lake Biwa
Iwaki M., Hayakawa K., Goto N.
Atmosphere Atmosphere 13 (5) 2022.05
10.3390/atmos13050724 Joint Work
[Abstract]
To facilitate climate change adaptations and water management, estimates of precipitation retention time (time required for precipitation to reach a lake) can help to accurately determine a water body’s terrestrial water storage capacity and water cycle. Although estimating the precipitation retention time on land is difficult, estimating the lag between precipitation on land and a rise in lake water levels is possible. In this study, the delay times (using a depth metre installed in the mooring system in the northern basin of Lake Biwa from August 2017 to October 2018) were calculated using response functions, and it evaluated the precipitation retention time in the catchment. However, as several delays between the river surface flow (<1 d) and shallow subsurface flow (≈45 d) remained unidentified, the delay times resulting from direct precipitation on the lake as well as from internal seiches were determined. The results suggest that delay times of approximately 20 d correspond to the paddy–waterway system between the river inflow and the subsurface flow, and that this effect corresponds to that of large rivers such as the Ane River. These findings can enhance water management strategies regarding the regulation of river flows, adapting to climate change-induced fluctuations in precipitation.
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Grain size distribution and chemistry of the brackish Lake sediment in Korea
Chan Shin, Tetsuji Akatsuka, Hisayuki Azumi, Lan Ao, Nozomi Amahashi, Maki Oyagi, Noriko Ishida, Naoshige Goto, Masahiro Maruo, Akihiko Yagi, Yasushi Seike, Seuug Hyunn Lee, Sung Ae Yoon, Jun Kil Choi, Young Woong Byeon, Byuug Mo Lee, Osamu Mitamura, Kwang Jin Cho
Environmental Engineering Research 26 2021
Joint Work Joint(The vice charge)
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Effect of dissolved oxygen on nitrogen and phosphorus fluxes from lake sediments and their thresholds based on incubation using a simple and stable dissolved oxygen control method
Ken'ichi Osaka,Rei Yokoyama,Takaaki Ishibashi,Naoshige Goto
Limnology and Oceanography Method 2021
10.1002/lom3.10466 Joint Work Joint(The vice charge)
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Temporal variation in community structure of zoosporic fungi in Lake Biwa, Japan
Song P., Yi R., Tanabe S., Goto N., Seto K., Kagami M., Ban S.
Aquatic Microbial Ecology Aquatic Microbial Ecology 87 17 - 28 2021
10.3354/AME01970 Joint Work Joint(The vice charge)
[Abstract]
Zoosporic fungi play an important role in aquatic environments, but their diversity, especially that of parasitic fungi of phytoplankton, has still not been fully revealed. We conducted monthly analyses of the community structure of zoosporic fungi at a pelagic site in Lake Biwa, Japan, from May to December 2016. Metabarcoding analysis, targeted to a large subunit region of ribosomal DNA in the nano-size fraction of particles (2-20 μm), was carried out on the samples. We also counted large phytoplankton and chytrid sporangia attached to the hosts. We detected 3 zoosporic fungal phyla (Blastocladiomycota, Chytridiomycota and Cryptomycota) within 107 operational taxonomic units (OTUs), in which Chytridiomycota was the most diverse and abundant phylum. Few fungal OTUs overlapped between months, and specific communities were detected in each month. These results showed that diverse zoosporic fungi with high temporal variability inhabited the lake. Five large phytoplankton species were found to be infected by chytrids: Staurastrum dorsidentiferum, S. rotula, Closterium aciculare, Asterionella formosa and Aulacoseira granulata. Some chytrids were detected by metabarcoding analysis: Zygophlyctis asterionellae infecting A. formosa, Staurastromyces oculus infecting S. dorsidentiferum and Pendulichytrium sphaericum infecting A. granulata. One OTU detected in association with infected C. aciculare by microscopic counting might have been an obligate parasitic chytrid of C. aciculare. The results indicated that a combination of metabarcoding and microscopic analysis revealed more information on zoosporic fungi, including those that are parasitic.
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琵琶湖北湖第一湖盆における底質環境と表層堆積物による溶存酸素消費
後藤直成，小村沙織，福田紀，吉村葵，伴修平
陸水学雑誌 2017
Joint Work Joint(The main charge)
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Effectiveness of preservatives and poisons on sediment trap material in freshwater environments
Goto Naoshige, Kento Hisamatsu, Chikage Yoshimizu, Shuhei Ban
Limnology 17 (1) 87 - 94 2016
10.1007/s10201-015-0467-2 Joint Work Joint(The main charge)
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Relationships between carbon flow through freshwater phytoplankton and environmental factors in Lake Biwa, Japan.
Goto, N., Y. Tanaka and O. Mitamura
Fundamental and Applied of Limnology 184 261 - 275 2014
Joint Work Joint(The main charge)
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Environmental Education about Lake Nishinoko, an Attached Lagoon of Lake Biwa
Osamu Mitamura, Satoko Ishikawa, Noriko Ishida, Naoshige Goto, Junji Tachibana, Masahiro Maruo
Limnological Study 1 5 - 15 2014
Joint Work Joint(The vice charge)
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Estimation of in situ primary productivity using chlorophyll fluorescence technique in phytoplankton and its verification
Japanese Journal of Limnology 74 173 - 181 2013
Joint Work Joint(The vice charge)
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Highly efficient silica sink in the monomictic Lake Biwa in Japan
Goto Naoshige, Hisayuki Azumi, Tetsuji Akatsuka, Masaki Kihira, Masakazu Ishikawa, Kaori Anbutsu, Osamu Mitamura
Annales de Limnologie - International Journal of Limnology 49 139 - 147 2013
Joint Work Joint(The main charge)