HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >

The significance of meandering channel to habitat diversity and fish assemblage: a case study in the Shibetsu River, northern Japan

Files in This Item:
2017_Limnology_Nagayama&Nakamura_RG-1.pdf827.88 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: The significance of meandering channel to habitat diversity and fish assemblage: a case study in the Shibetsu River, northern Japan
Authors: Nagayama, Shigeya Browse this author
Nakamura, Futoshi Browse this author →KAKEN DB
Keywords: Channel modification
Habitat classification
Lowland river
Meander restoration
Sinuous channel
Issue Date: Jan-2018
Publisher: Springer
Journal Title: Limnology
Volume: 19
Issue: 1
Start Page: 7
End Page: 20
Publisher DOI: 10.1007/s10201-017-0512-4
Abstract: This study examined the structure and function of habitats for fish, the contribution to fish populations, and the effects of channel modification on habitats and fish populations in the lowland meandering Shibetsu River, northern Japan. Electrofishing and environmental measurements were conducted in bank areas of habitats constituting natural meandering and modified reaches. All types of habitats in a meandering reach highly contributed to the fish population(s). In particular, the contributions of lateral and wood habitats to fish populations were generally high, despite the low spatial extent of these habitats. The modified reach was simplified and had fewer types of habitats with uniform currents, and there was a low abundance of most fish within these habitats. Abundance of each fish group (taxa) was negatively affected by the changes in the habitats and/or channel shortening (i.e., decrease in the absolute abundance of habitat) due to river modification, which was implemented during 1950-1978. This study suggests that the recovery of all the habitat types is important in meander restoration and that the changes in habitat types and abundance should be examined in monitoring meander restoration and channel shortening.
Rights: © The Japanese Society of Limnology 2017., This is a post-peer-review, pre-copyedit version of an article published in Limnology. The final authenticated version is available online at:
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中村 太士

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University