Students

Students Supervised and Research Topics

Over the years, many student research projects conducted in our laboratory have developed into peer-reviewed publications. These can also be found on our [Publications] page.

We hope that students will make new discoveries together with us through their own research projects.

The list below shows current and former students and their research topics.
B = Undergraduate student, M = Master's student, D = Doctoral student.

Current Members

Laboratory Assistant: Megumi Mori

Administrative Assistant: Misato Mori

Tatsuya Ozaki
Studies on primary production processes in the Midori River estuary (D3)

Risa Hayashi
Quantifying fish bioturbation and evaluating its effects on benthic ecosystems in the Oshima tidal flat, Yatsushiro Sea, using drone imagery and environmental DNA (M2)

Juntaro Takagi
Diet analysis of aquatic insects in a Cymbella janischii diatom community in the middle reaches of the Midori River (B4)

Takaaki Minami
Population dynamics of Manila clams and primary production processes on the Midori River estuarine tidal flat (B4)

Sakuya Watanabe
Evaluation of nutrient sources supporting seaweed beds along the Minamata coast (B4)

2025

Laboratory Assistant: Megumi Mori

Administrative Assistant: Misato Mori

Tatsuya Ozaki
Studies on primary production processes in the Midori River estuary (D2)

Rikuto Honda
Quantitative evaluation of the effects of predators and flood events on Manila clam populations on the Midori River estuarine tidal flat (D1)

Risa Hayashi
Quantifying fish bioturbation and evaluating its effects on benthic ecosystems in the Oshima tidal flat, Yatsushiro Sea, using drone imagery and environmental DNA (M1)

Shinichiro Iida
Evaluation of the effects of dams on ayu (Plecoglossus altivelis) distribution in the Midori River watershed (B4)

Haruna Nakata
Evaluation of primary production during emersion on the Midori River estuarine tidal flat (B4)

Tomoya Yasuda
Quantitative evaluation of fish predation on Manila clam populations in the Oshima tidal flat, Yatsushiro Sea (B4)

2024

Laboratory Assistants: Ayame Umemoto and Megumi Mori

Tatsuya Ozaki
Studies on primary production processes in the Midori River estuary (D1)

Rikuto Honda
Quantitative evaluation of the effects of predators and flood events on Manila clam populations on the Midori River estuarine tidal flat (M2)

Hiroshi Koba
Estimation and quality assessment of food resources for ayu in the middle reaches of the Midori River using carbon and nitrogen stable isotopes and elemental ratios (B4)

Yuka Toya
Origins of suspended organic matter and the role of organic matter decomposition in sustaining and expanding red tides in the southern Yatsushiro Sea during summer (B4)

Risa Hayashi
An attempt to quantify fish bioturbation in the Oshima tidal flat, Yatsushiro Sea, using drone imagery and environmental DNA (B4)

Shino Yamashita
Field experiments using dam-derived sediment for tidal-flat restoration and development of methods for selecting suitable restoration sites on the Midori River estuarine tidal flat (B4)

2023

Laboratory Assistant: Megumi Mori

Tatsuya Ozaki
High-temporal-resolution quantification of primary production by microphytobenthos and phytoplankton in an estuarine tidal flat using culture experiments and moored observations (M2)

Nana Yamashita
Quantitative evaluation of the effects of high-density Manila clam populations on primary producers on the Midori River estuarine tidal flat (M2)

Rikuto Honda
Relationship between duck predation pressure and water depth on the Midori River estuarine tidal flat (M1)

Shotaro Kobayashi
Characteristics of summer mortality factors affecting Manila clams on the Midori River estuarine tidal flat (B4)

Takumi Magome
Seasonal variation in the photosynthetic activity of phytoplankton and microphytobenthos on the Midori River estuarine tidal flat (B4)

2022

Laboratory Assistant: Megumi Mori

Tatsuya Ozaki
Studies on primary production processes on the Midori River estuarine tidal flat (M1)

Nana Yamashita
Population dynamics and production processes of Manila clams on the Midori River estuarine tidal flat (M1)

Nobuaki Nakatsu
Evaluation of oxygen and nutrient fluxes across the water–sediment interface on the Midori River estuarine tidal flat (B4)

Futaba Nakamura
Seasonal variation in phytoplankton primary production and sinking flux in Minamata Bay, southern Yatsushiro Sea (B4)

Daisuke Fudaka
Diet analysis of ducks wintering in the Midori River estuary, Ariake Sea (B4)

Rikuto Honda
Quantitative evaluation of predation by rays on the Midori River estuarine tidal flat (B4)

Mizuki Masuda
Effective use of mesh bags for restoring Manila clam resources on the Midori River estuarine tidal flat (B4)

2021

Laboratory Assistant: Megumi Mori

Tatsuya Ozaki
High-frequency observations of primary production by phytoplankton and microphytobenthos on the Midori River estuarine tidal flat (B4)

Miyako Takeuchi
Strategic deployment of mesh bags for restoring Manila clam resources on the Midori River estuarine tidal flat (B4)

Tomoki Tanaka
Primary production processes in Minamata Bay (B4)

Haruki Hissako
High-frequency observations of phytoplankton blooms at the mouth of Kagoshima Bay (B4)

2020

Laboratory Assistant: Megumi Mori

Nesuri Hara
Qualitative evaluation of organic matter accumulated in Asian date mussel mats dominating sandy tidal flats (B4)

2019

Laboratory Assistant: Risa Takenaka

Wachirah Jaingam*
Biomagnification process of total mercury in the aquatic ecosystem of an enclosed Isahaya Bay, Kyushu, western Japan (D3)

2018

Laboratory Assistant: Rei Somiya

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (D3)

Wachirah Jaingam*
Biomagnification process of total mercury in the aquatic ecosystem of an enclosed Isahaya Bay, Kyushu, western Japan (D2)

Shota Ijima
Seasonal variation in primary production by phytoplankton and microphytobenthos in the Midori River estuary (B4)

Miki Kuwahara
Characteristics of bioelement (N, P, and O) budgets in inner Isahaya Bay during warm and cold seasons (B4)

Keita Hoshimoto
Characteristics of oxygen consumption associated with organic matter decomposition in seawater and bottom sediments of Isahaya Bay (B4)

2017

Laboratory Assistant: Rei Somiya

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (D2)

Wachirah Jaingam*
Biomagnification process of total mercury in the aquatic ecosystem of an enclosed Isahaya Bay, Kyushu, western Japan (D1)

Masatake Ishimatsu*
Integrated evaluation of the effects of the tidal-dike system on the benthic ecosystem of Isahaya Bay (M2)

Daiki Sawada
Effects of the Kuroshio on seasonal variation in nutrient supply in the Satsunan region (B4)

Takuya Nagata
Nutrient supply from bottom water supporting phytoplankton production in the Satsunan region during spring (B4)

2016

Laboratory Assistant: Kazumasa Yamada

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (D1)

Shobu Ishimatsu*
Integrated evaluation of the effects of the tidal-dike system on the benthic ecosystem of Isahaya Bay (M1)

Mami Kuwahara
Distribution of sediments and bioelements before and after the rainy season on the Midori River estuarine tidal flat (B4)

2015

Laboratory Assistant: Takahiro Yamagishi

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (M2)

Shobu Ishimatsu*
Integrated evaluation of the effects of the tidal-dike system on the benthic ecosystem of Isahaya Bay (B4)

Koito Shimada*
Environmental factors controlling the distribution of the hard clam Meretrix lusoria on the Midori River estuarine tidal flat (B4)

2014

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (M1)

Asuka Kawachi*
Environmental factors suitable for the recruitment of Asian date mussels in the Midori River estuary (B4)

2013

Risa Takenaka*
Population dynamics of the Asian date mussel on the Midori River estuarine tidal flat, Kumamoto, and effects of its biological activity on material cycling in the tidal-flat ecosystem (B4)