Geographical differences in stomach contents and feeding intensity of juvenile Japanese flounder Paralichthys olivaceus

• TANAKA YOSUKE

  National Research Institute of Far Sea Fisheries, Fisheries Research Agency

• OHKAWA TOSHIYUKI

  Kochi Prefectural Fisheries Station

• YAMASHITA YOH

  Field Science Education and Research Center Kyoto University

• TANAKA MASARU

  Field Science Education and Research Center Kyoto University

Bibliographic Information

Other Title

• ヒラメＰａｒａｌｉｃｈｔｈｙｓ　ｏｌｉｖａｃｅｕｓ稚魚の食物組成と摂餌強度にみられる地域性
• ヒラメ Paralichthys olivaceus チギョ ノ ショクモツ ソセイ ト セツジ キョウド ニ ミラレル チイキセイ

Abstract

  Japanese flounder juveniles were collected from 12 nurseries from southern to northern Japan and stomach contents of the juveniles, and density, biomass and species composition of mysids as the main prey for juvenile flounder, were examined. Juveniles fed mainly on mysids, small fishes, cragonids and gammarids. Mysid species composition in the field varied geographically and species richness and the biomass of mysids in the environment ranged from one to ten species and 3.0 to 1712.8 mg/m², respectively. The most abundant species in the field occupied the majority in the stomach contents of flounder juveniles. Relative stomach fullness (RSF) on all prey items had no relation to the mysid biomass. However, RSF on mysids increased with mysid biomass in the environment to 200 mg/m². The species composition and biomass of mysids would influence the stomach content composition and feeding intensity of juvenile Japanese flounder.<br>

Journal

• NIPPON SUISAN GAKKAISHI

  NIPPON SUISAN GAKKAISHI 72 (1), 50-57, 2006

  The Japanese Society of Fisheries Science

Keywords

• アミ類
• 食物組成
• 摂餌強度
• 地域性
• ヒラメ

Details

• CRID: 1390282681390888832
• NII Article ID: 110004857180
• NII Book ID: AN00193422
• DOI: 10.2331/suisan.72.50
• ISSN: 1349998X
• ISSN: 00215392
• NDL BIB ID: 7811293
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030731539
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7811293
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed