Ruggedness of the seafloor and distribution of demersal fishes in the fishing grounds on the continental slope off the Pacific coast of Hokkaido, Japan

DOI JASI Web Site 22 References
  • HAMATSU TOMONORI
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency

Bibliographic Information

Other Title
  • 北海道太平洋側の大陸斜面域漁場における海底表面の起伏と底生魚類の分布
  • ホッカイドウ タイヘイヨウガワ ノ タイリク シャメンイキ ギョジョウ ニ オケル カイテイ ヒョウメン ノ キフク ト テイセイギョルイ ノ ブンプ

Search this article

Abstract

  To clarify the impacts of fisheries on the marine ecosystem, the relationship between the ruggedness of the seafloor and the distribution of demersal fishes was estimated on the basis of observation by a deepwater video-camera system in the fishing grounds on the continental slope off the Pacific coast of Hokkaido, Japan. Some demersal fish species (cutthroat eel, rattails, kichiji rockfish, walleye pollock, eelpouts, sculpin, and flounders) were observed. Kichiji rockfish preferred a rugged seafloor to a flat area, and the density of kichiji rockfish was higher in a topographically rugged area with high bottom water temperature. Conservation of a rugged seafloor may be necessary to maintain a favorable habitat for kichiji rockfish.<br>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 78 (6), 1127-1134, 2012

    The Japanese Society of Fisheries Science

References(22)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top