The Chikuma–Shinano River Research Group presented at the 27th River Ecology Research Meeting
On November 13, 2025, at the Tokyo Stock Exchange Conference Center in Chuo-ku, Tokyo, the “27th River Ecology Research Meeting” (organized by the River Ecology Research Association and co-organized by the Japan Society on Ecological Engineering) was held. At this meeting, the “Chikuma–Shinano River Research Group,” led by Professor Hiroshi Hakoyama of the Institute of Freshwater Biology, Nagano University, gave a research presentation.
The Chikuma–Shinano River Research Group focuses on the importance of habitat connectivity in rivers and advances research on relationships between river ecosystems and river management using diverse approaches, including fish diversity, aquatic communities, channel morphology, and environmental DNA.
Oral presentation
- “The importance of habitat connectivity in rivers — impact assessment and conservation measures for river ecosystems” Presenter: Hiroshi Hakoyama (Representative, Chikuma–Shinano River Research Group)
Selected poster presentations
- “The importance of habitat connectivity in rivers — impact assessment and conservation measures for river ecosystems” Hiroshi Hakoyama
- “Relationships between fish diversity and environmental variables in the Shinano River: towards understanding habitat connectivity” Sakie Kodama, Takeru Kodama, Leanne Faulks, Alessandra Cera, Hiroshi Hakoyama
- “River fragmentation at the local scale: effects on biodiversity” Leanne Faulks, Alessandra Cera, Sakie Kodama, Hiroshi Hakoyama
- “Spatial and temporal variations of community-level profile of epilithic biofilm for assessing disturbances” Alessandra Cera
- “Relationships among dams, water quality, microbial communities, and fish assemblages in the middle reaches of the Chikuma River” Takeru Kodama, Mitsuki Ohara, Yoshinobu Hanaoka, Koki Hada, Sakie Kodama, Leanne Faulks, Hiroshi Hakoyama
- “Estimating Fish Density from Downstream eDNA Reads in an Experimental Waterway” Mitsuki Ohara, Takeru Kodama, Hiroshi Hakoyama
- “Channel changes in the middle reaches of the Chikuma–Shinano River based on cross-section survey data and aerial photographs” Fuka Iwai, Takato Izuchi, Masafumi Toyoda
- “Analysis of fish–environment relationships using integrated river data from the Ministry of Land, Infrastructure, Transport and Tourism with dam location information” Takeru Kodama, Sakie Kodama, Leanne Faulks, Masafumi Toyoda, Hiroshi Hakoyama
- “Effects of ayu on river ecosystems” Shun Kato, Leanne Faulks, Yuji Onishi, Shinji Takahashi, Hiromi Uno
For the detailed program and further information, please refer to the website of the River Ecology Research Association.