Fish assemblages in the riverside pools of a small stream

• KATANO Osamu

  National Research Institute of Aquaculture, Fisheries Research Agency

• KUROKAWA Maria

  Faculty of Education, Shinshu University

• KITANO Satoshi

  Nagano Environmental Conservation Research Institute

• TOJO Koji

  Faculty of Science, Shinshu University

Bibliographic Information

Other Title

• 小河川におけるワンド・タマリの魚類群集
• ショウカセン ニ オケル ワンド ・ タマリ ノ ギョルイ グンシュウ

Abstract

Fish assemblages in the riverside pools of a small stream were investigated in Nagano Prefecture, Japan, and a total of 12 fish species were caught. There were greater numbers of Misgurnus anguillicaudatus and Cobitis biwae and fewer Tribolodon hakonensis and Zacco platypus in the riverside pools relative to the assemblage in the main stream. In the pools, fish species richness and total population density of fish were not correlated with the abundance of benthic invertebrates, but were strongly correlated with environmental factors. Fish species richness was highest when the degree of saturated dissolved oxygen was elevated in June and when the area and water depth were greatest in September. The total population density was positively correlated with the mean current velocity in June but was not correlated with any environmental factor in September. Fish fed primarily on chironomid larvae, ephemeropteran nymphs, benthic algae and detritus in the riverside pools. Detritus contributed to a greater proportion of the diet in the fish from the riverside pools compared with those in the main stream.

Journal

• Japanese Journal of Limnology (Rikusuigaku Zasshi)

  Japanese Journal of Limnology (Rikusuigaku Zasshi) 72 (3), 181-192, 2011

  The Japanese Society of Limnology

Keywords

• degree of saturated dissolved oxygen
• environmental factors
• fish assemblage
• fish diet
• riverside pools

Details

• CRID: 1390001204062257920
• NII Article ID: 10030457080
• NII Book ID: AN0024866X
• DOI: 10.3739/rikusui.72.181
• COI: 1:CAS:528:DC%2BC38Xns1Oltw%3D%3D
• ISSN: 18824897
• ISSN: 00215104
• NDL BIB ID: 023442627
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010830363
• Web Site: http://id.ndl.go.jp/bib/023442627
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023442627
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed