37. Matsuzaki, S. S., A. Kohzu, M. Watanabe, K. Nakanishi, K. Tsuchiya, N. I. Kondo and M. Sueyoshi, 2025. Spatial variation of multifunctionality among abandoned rice paddies and irrigation ponds: potential roles of hydrological and environmental factors. -Restoration Ecology, e70161. doi: 10.1111/rec.70161
36. Shinohara, R., K. Tsuchiya and A. Kohzu, 2025. Does nitrate suppress phosphorus release from sediment? A case study in Lake Kasumigaura, Japan. -Journal of Hydrology: Regional Studies, 58, 102233. doi: 10.1016/j.ejrh.2025.102233
35. Komatsu, K, T. Onodera, K. Tsuchiya, A. Kohzu and K. Syutsubo, 2025. Identification of wastewater-specific peak on EEM and their application for detecting the effluent in the discharged area. -Water Research, 275, 123213. doi: 10.1016/j.watres.2025.123213.
34. 土屋健司・青木仁孝・高津文人, 2024. 2種の枝角類動物プランクトンがバクテリア生産速度及び群集構造に与える影響.-地球環境, 29, 183-192.
33. Tsuchiya, K., S. S. Matsuzaki and A. Kohzu, 2024. Relationship between fish traits and the methane-derived carbon contribution to fish in a shallow lake. -Freshwater Biology, 69, 1468-1478. doi: 10.1111/fwb.14319
32. Fukumori K., N. I. Kondo, A. Kohzu, K. Tsuchiya, H. Ito and T. Kadoya, 2024. Vertical eDNA distribution of cold-water fishes in response to environmental variables in stratified lake. - Ecology and Evolution, 14, e11091. doi: 10.1002/ece3.11091
31. Shen, S., K. Tominaga, K. Tsuchiya, T. Matsuda, T. Yoshida, and Y. Shimizu, 2024. Virus-prokaryote infection pairs associated with prokaryotic production in a freshwater lake. - mSystems, e0090623. doi: 10.1128/msystems.00906-23
30. Sugai, Y., N. Natori, K. Tsuchiya, M. Nakagawa, M. C. Honda, S. Shimode and T. Toda, 2023. Ingestion rate estimated from food concentration and predatory role of copepod nauplii in the microbial food web of temperate embayment waters. - Journal of Plankton Research. doi: 10.1093/plankt/fbad002
29. Matsuzaki, S. S., A. Kohzu, K. Tsuchiya, R. Shinohara, M. Nakagawa, K. Fukumori, H. Yamaguchi, N. I. Kondo and T. Kadoya, 2023. Water-level drawdowns can improve surface water quality and alleviate bottom hypoxia in shallow, eutrophic water bodies. - Freshwater Biology, 68, 229-244. doi: 10.1111/fwb.14020
28. Shinohara, R., K. Tsuchiya and A. Kohzu, 2022. The composition of organic phosphorus in a river during the springtime irrigation period. - Journal of Hydrology: Regional Studies, 44, 101238. doi: 10.1016/j.ejrh.2022.101238
27. Shinohara, R., S. S. Matsuzaki, M. Nakagawa and K. Tsuchiya, A. Kohzu, 2022. Does increased springtime solar radiation also increase primary production? -Journal of Plankton Research, fbac037. doi:10.1093/plankt/fbac037
26. Sogawa, S., K. Tsuchiya, S. Nagai, S. Shimode and V. S. Kuwahara, 2022. Annual dynamics of eukaryotic and bacterial communities revealed by 18S and 16S rRNA metabarcoding in the coastal ecosystem of Sagami Bay, Japan. -Metabarcoding and Metagenomics, 6, 41-58. doi:10.3897/mbmg.6.78181
25. Tsuchiya, K., T. Noriko, K. Komatsu, T. Sano, A. Kohzu, A. Imai, K. Hayakawa, T. Nagata, T. Okamoto and T. Ohara, 2022. Horizontal variability and regulation of bacterial production in Lake Biwa, Japan. -Limnology, 23, 231-243. doi:10.1007/s10201-021-00687-7
24. Shinohara, R., K. Tsuchiya and A. Kohzu, 2021. Warming of water temperature in spring and nutrient release from sediment in a shallow eutrophic lake. -Journal of Water and Climate Change, jwc2021145. doi:10.2166/wcc.2021.145
23. Tsuchiya, K., A. Kohzu, V. S. Kuwahara, S. S. Matsuzaki, D. Masatoshi and K. Hirabayashi, 2021. Differences in regulation of planktonic and epilithic biofilm bacterial production in the middle reaches of a temperate river. -Aquatic Microbial Ecology, 87, 47-60. doi:10.3354/ame01968
22. 土屋健司. 放射性同位体を用いないバクテリア生産速度測定法の開発と応用, 2020. -地球環境, 25, 43-52.
21. 小松一弘・中川惠・土屋健司・高津文人・篠原隆一郎・松崎慎一郎, 2020. 霞ヶ浦における一次生産量に影響を及ぼす水質環境因子の解析. -土木学会論文集G(環境), 76, III_11-III_17. doi:10.2208/jscejer.76.7_III_11
[論文賞]
20. Tsuchiya, K., T. Sano, N. Tomioka, K. Komatsu, A. Imai, K. Hayakawa, T. Nagata, T. Okamoto, V. S. Kuwahara and A. Kohzu, 2020. Novel method for measuring aquatic bacterial productivity using D10-leucine based on protein synthesis rate. -Aquatic Microbial Ecology, 85, 121-129. doi:10.3354/ame01945
19. Tsuchiya, K., K. Komatsu, R. Shinohara, A. Imai, S. S. Matsuzaki, R. Ueno, V. S. Kuwahara and A. Kohzu, 2020. Variability of benthic methane-derived carbon along seasonal, biological and sedimentary gradients in a polymictic lake. -Limnology and Oceanography. 65, 3017-3031.doi:10.1002/lno.11571
18. Ohtake, M. G. N. Nishihara, Y. Inoue, K. Tsuchiya and T. Toda, 2020. Phosphorus demand and uptake during growth and maturation of the brown alga Sargassum macrocarpum. - Phycological Research, 68, 277-289. doi:10.1111/pre.12430
17. Sugai, Y., K. Tsuchiya, S. Shimode and T. Toda, 2020. Photochemical Production and Biological Consumption of CO in the SML of Temperate Coastal Waters and Their Implications for Air-sea CO Exchange. - Journal of Geophysical Research - Oceans, 125, e2019JC015505. doi: 10.1029/2019JC015505
16. Tsuchiya, K., T. Sano, T. Noriko, A. Kohzu, K. Komatsu, R. Shinohara, S. Shimode, T. Toda and A. Imai, 2020. Incorporation characteristics of exogenous 15N-labeled thymidine, deoxyadenosine, deoxyguanosine and deoxycytidine into bacterial DNA. -PLOS ONE, 15(2): e0229740. doi:10.1371/journal.pone.0229740
15. Ohtake, M., N. Natori, Y. Sugai, K. Tsuchiya, T. Aketo, G. N. Nishihara and T. Toda, 2020. Growth and nutrient uptake characteristics of Sargassum macrocarpum cultivated with phosphorus-replete wastewater. -Aquatic Botany, 163: 103208. doi:10.1016/j.aquabot.2020.103208
14. Tsuchiya, K., T. Noriko, T. Sano, A. Kohzu, K. Komatsu, A. Imai, K. Hayakawa, T. Nagata, T. Okamoto and Y. Hirose, 2020. Decrease in bacterial production over the past three decades in the north basin of Lake Biwa, Japan. -Limnology, 21: 87-96. doi:10.1007/s10201-019-00582-2
[2021年度日本陸水学会論文賞（Limnology Excellent Paper Award）]
13. Tsuchiya, K., T. Sano, T. Noriko, A. Kohzu, K. Komatsu, R. Shinohara, T. Noriko, M. Nakagawa, Y. Sugai, V. S. Kuwahara, T. Toda, H. Fukuda and A. Imai, 2019. Seasonal variability and regulation of bacterial production in a shallow eutrophic lake. -Limnology and Oceanography, 64: 2441-2454. doi:10.1002/lno.11196
12. Sugai, Y., K. Tsuchiya, S. Shimode and T. Toda, 2018. Seasonal variations in microbial abundance and transparent exopolymer particle concentration in the sea surface microlayer of temperate coastal waters. -Aquatic Microbial Ecology, 81: 201-211. doi:10.3354/ame01869
11. 土屋健司・江濱睦人・安永佳秀・中川裕子・平原南萌・岸正敏・水林啓子・桑原ビクター伸一・戸田龍樹, 2018. 長崎県五島列島北部沿岸海域における栄養塩の季節的・空間的変動. -沿岸海洋研究, 55: 125-138. doi:10.32142/engankaiyo.55.2_125
10. Kishi, M., M. Kawai, K. Tsuchiya, M. Koyama, N. Nagao and T. Toda, 2018. Enhancement of microalgal production through bacterial mineralization of ethylene glycol. -Journal of Environmental Biology, 39: 725-731. doi:10.22438/jeb/39/5(SI)/1
9. Tsuchiya, K., V. S. Kuwahara, T. Yoshiki, R. Nakajima, S. Shimode, T. Kikuchi and T. Toda, 2017. Response of phytoplankton and enhanced biogeochemical activity to an episodic typhoon event in the coastal waters of Japan. -Estuarine, Coastal and Shelf Science. 194: 30-39. doi:10.1016/j.ecss.2017.05.019
8. Sugai, Y., K. Tsuchiya, V. S. Kuwahara, S. Shimode, K. Komatsu, A. Imai and T. Toda, 2016. Bacterial Growth Rate and Grazing Pressure on Bacteria in the Euphotic and Disphotic Layers in Temperate Coastal Waters of Sagami Bay, Japan. - Journal of Oceanography. 72: 577-587. doi:10.1007/s10872-016-0352-6
7. Tsuchiya, K., V. S. Kuwahara, K. Hamasaki, Y. Tada, T. Ichikawa, T. Yoshiki, R. Nakajima, A. Imai, S. Shimode and T. Toda, 2015. Typhoon-induced response of phytoplankton and bacteria in temperate coastal waters. -Estuarine, Coastal and Shelf Science. 167: 458-465. doi:10.1016/j.ecss.2015.10.026
6. Tsuchiya, K., T. Sano, N. Kawasaki, H. Fukuda, N. Tomioka, K. Hamasaki, Y. Tada, S. Shimode, T. Toda and A. Imai, 2015. New isotope-free method for measuring bacterial production using [15N5]-2’-deoxyadenosine and liquid chromatography mass spectrometry (LC-MS) in aquatic environments. -Journal of Oceanography. 71: 675-683. doi:10.1007/s10872-015-0310-8
5. Eio, E. J., M. Kawai, K. Tsuchiya, S. Yamamoto and T. Toda, 2014. Biodegradation of bisphenol A by bacterial consortia. -International Biodeterioration & Biodegradation, 96: 166-173. doi:10.1016/j.ibiod.2014.09.011
4. Kok, S. P., K. Tsuchiya, K. Komatsu, T. Toda and N. Kurosawa, 2014. The protistan microplankton community along the Kuroshio Current revealed by 18S rRNA gene clone analysis: a case study of the differences in distribution interplay with ecological variability. - Plankton & Benthos Research, 9: 71-82. doi:10.3800/pbr.9.71
3. Tsuchiya, K., V. S. Kuwahara, T. Yoshiki, R. Nakajima, H. Miyaguchi, N. Kumekawa, T. Kikuchi and T. Toda, 2014. Phytoplankton community response and succession in relation to typhoon passages in the coastal waters of Japan. -Journal of Plankton Research, 36: 424-438. doi:10.1093/plankt/fbt127
2. Nakajima, R., K. Tsuchiya, N. Nakatomi, T. Yoshida, Y. Tada, F. Konno, T. Toda, V. S. Kuwahara, K. Hamasaki, B. H. R. Othman, C. S. Thirukanthan and A. W. M. Effendy, 2013. Enrichment of microbial abundance in the sea-surface microlayer over a coral reef: implications for biogeochemical cycles in reef ecosystems. -Marine Ecology Progress Series, 490: 11-22. doi:10.3354/meps10481
1. Tsuchiya, K., T. Yoshiki, R. Nakajima, H. Miyaguchi, V. S. Kuwahara, S. Taguchi, T. Kikuchi and T. Toda, 2013. Typhoon-driven variations in primary production and phytoplankton assemblages in Sagami Bay, Japan: A case study of typhoon Mawar (T0511). -Plankton & Benthos Research, 8: 74-87. doi:10.3800/pbr.8.74
3. 土屋健司, 2024. 細菌生産速度の季節・空間変動と制限要因. - 平林公男・東城幸治（編） 河川生態学入門-基礎から生物生産まで-．共立出版，東京，pp.145-149. ISBN: 978-4320058415
2. 高津文人・土屋健司, 2021. 河川における環境問題の変遷. -日本水環境学会（編） 水環境の辞典. 朝倉書店，東京，pp.82-83. ISBN: 978-4254180565
1. Tsuchiya, K. and T. Toda, 2015. Phytoplankton response in relation to the passage of typhoons in coastal regions. -In: Karina Linwood (ed) Natural Disasters – typhoons and landslides - Risk Prediction, Crisis Management and Environmental Impacts. Nova Science Publishers, Inc., NY., pp.119-138. ISBN: 978-1634633093