• Profile
• Research Interest
• Selected Publications
• Community Engagement
• Educational Activities
• Additional Information

Profile

Research Interest

Selected Publications

24. Kobayashi S, Sugimoto R, Honda H, Miyata Y, Tahara D, Tominaga O, Shoji J, Yamada M, Nakada S, Taniguchi M (2017) High-resolution mapping and time-series measurements of 222Rn and biogeochemical properties related to submarine groundwater discharge along the coast of Obama Bay, a semi-enclosed sea in Japan. Progress in Earth and Planetary Science　4:6.
23. Sugimoto R, Kitagawa K, Nishi S, Honda H, Yamada M, Kobayashi S, Shoji J, Ohsawa S, Taniguchi M, Tominaga O (2017) Phytoplankton primary productivity around submarine groundwater discharge in nearshore coasts. Marine Ecology Progress Series 563, 25-33.
22. Sugimoto R, Tsuboi T (2017) Seasonal and annual fluxes of atmospheric nitrogen deposition and riverine nitrogen export in two adjacent contrasting rivers in central Japan facing the Sea of Japan. Journal of Hydrology: Regional Studies 11, 117-125.
21. Utsunomiya T, Hata M, Sugimoto R, Honda H, Kobayashi S, Miyata Y, Yamada M, Tominaga O, Shoji J, Taniguchi M (2017) Higher species richness and abundance of fish and benthic invertebrates around submarine groundwater discharge in Obama Bay, Japan. Journal of Hydrology: Regional Studies 11, 139-146.
20. Honda H, Sugimoto R, Kobayashi S, Tahara D, Tominaga O (2016) Temporal and spatial variation in primary production in Obama Bay. Bulletin of the Japanese Society of Fisheries Oceanography 80, 269-282. (in Japanese)
19. Hata M, Sugimoto R, Hori M, Tomiyama T, Shoji J (2016) Occurrence, distribution and feeding habits of juvenile marbled sole Pleuronectes yokohamae around an area with submarine groundwater seepage on a tidal mud flat in southwestern Japan. Journal of Sea Research 111, 47-53.
18. Sugimoto R, Kasai A (2016) Key biogeochemical processes evaluated by the stable nitrogen isotopes of dissolved inorganic nitrogen in the Yodo River estuary, Japan: Significance of estuarine nutrient recycling as a possible source for coastal production. Biogeochemistry 128, 1-17.
17. Yamada M, Shoji J, Teramoto S, Ohsawa S, Mishima T, Sugimoto R, Honda H, Taniguchi M (2016) Exploration of submarine groundwater discharge using a drone in a coastal area of Hiji town, Oita Prefecture, Japan in summer. Journal of Japanese Association of Hydrological Sciences 46, 29-38. (in Japanese)
16. Sugimoto R, Honda H, Kobayashi S, Takao Y, Tahara D, Tominaga O, Taniguchi M (2016) Seasonal changes in submarine groundwater discharge and associated nutrient transport into tideless semi-enclosed embayment (Obama Bay, Japan). Estuaries and Coasts 39, 13-26.
15. Sugimoto R, Honda H, Suzuki T, Ochiai S, Taniguchi M, Nagao S (2014) Effects of submarine groundwater discharge on nutrient concentrations in the western part of Nanao Bay in summer. Bulletin of the Japanese Society of Fisheries Oceanography 78, 142-150. (in Japanese)
14. Sugimoto R, Sato T, Yoshida T, Tominaga O (2014) Using stable nitrogen isotopes to evaluate the relative importance of external and internal nitrogen loadings on phytoplankton production in a shallow eutrophic lake (Lake Mikata, Japan). Limnology and Oceanography 59, 37-47.
13. Sugimoto R, Kasai A, Sato T, Tominaga O (2013) Dynamics of particulate organic matter in estuaries and coasts using stable isotopes. Bulletin on Coastal Oceanography 12, 19-28 (in Japanese)
12. Sato T, Sugimoto R, Tominaga O (2013) Source of sedimentary organic matter in Obama Bay estimated from stable isotope and C/N ratios. Bulletin of the Japanese Society of Fisheries Oceanography 77, 1-9. (in Japanese)
11. Sugimoto R, Kasai A, Fujita K, Sakaguchi K, Mizuno T (2011) Assessment of nitrogen loading from the Kiso-Sansen Rivers into Ise Bay using stable isotopes. Journal of Oceanography 67, 231-240.
10. Sugimoto R, Kasai A, Miyajima T, Fujita K (2010) Modeling phytoplankton production in Ise Bay, Japan: Use of nitrogen isotopes to identify dissolved inorganic nitrogen sources. Estuarine, Coastal and Shelf Science 86, 476-492.
9. Sugimoto R., Kasai A, Miyajima T, Fujita K (2009) Controlling factors of seasonal variation in nitrogen isotope ratio of nitrate in a eutrophic coastal environment. Estuarine, Coastal and Shelf Science 85, 231-240.
8. Suzuki KW, Sugimoto R, Kasai A, Nakayama K, Tanaka M (2009) Dynamics of particulate organic matter in the estuarine turbidity maximum of the Chikugo River estuary, Ariake Sea, in summer: Influence of the fluctuation of freshwater discharge. Bulletin of the Japanese Society of Fisheries Oceanography 73, 149-160. (in Japanese)
7. Sugimoto R, Kasai A, Miyajima T, Fujita K (2009) Transport of oceanic nitrate from the continental shelf to the coastal basin in relation to the path of the Kuroshio. Continental Shelf Research 29, 1678–1688.
6. Sugimoto R, Kasai A, Miyajima T, Fujita K (2009) Nitrogen isotope ratios of nitrate as a clue to the origin of nitrogen on the pacific coast of Japan. Continental Shelf Research 29, 1303-1309.
5. Sugimoto R, Kasai A, Miyajima T, Fujita K (2008) Nitrogen isotopic discrimination by water column nitrification in a shallow coastal environment. Journal of Oceanography 64, 39-48.
4. Suzuki KW, Sugimoto R, Kasai A, Shoji J, Nakayama K, Tanaka M (2007) Dynamics of particulate organic matter in the estuarine turbidity maximum of the Chikugo River, Ariake Sea, in spring. Bulletin of the Japanese Society of Fisheries Oceanography 71, 190-198. (in Japanese)
3. Kasai A, Sugimoto R, Akamine S (2007) Formation mechanism of subsurface chlorophyll maximum in a coastal embayment. Umi-to-Sora 82, 53-60. (in Japanese)
2. Sugimoto R, Kasai A, Yamao S, Fujiwara T, Kimura T (2006) Short-term variation in behavior of allochthonous particulate organic matter accompanying changes of river discharge in Ise Bay, Japan. Estuarine, Coastal and Shelf Science 66, 267-279.
1. Sugimoto R, Kasai A, Yamao S, Fujiwara T, Kimura T (2004) Variation in particulate organic matter accompanying changes of river discharge in Ise Bay. Bulletin of the Japanese Society of Fisheries Oceanography 68, 142-150. (in Japanese)

Community Engagement

Educational Activities

Additional Information