Age and growth of barfin flounder <i>Verasper moseri</i> in the eastern coastal waters of Cape Erimo, Hokkaido, Japan

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  • SHIKISHIMA YOSHIYA
    Graduate School of Fisheries Sciences, Hokkaido University
  • TAKATSU TETSUYA
    Faculty of Fisheries Sciences, Hokkaido University
  • TAKAHASHI TOYOMI
    Faculty of Fisheries Sciences, Hokkaido University
  • NINOMIYA MASAMITSU
    Graduate School of Fisheries Sciences, Hokkaido University
  • SAKAI SHINJI
    Nemuro Fisheries Extension Office
  • ICHINOSE HIROYUKI
    Nemuro Fisheries Extension Office Shibetsu Branch
  • MORIOKA TAIZO
    Stock Enhancement Technology Section (Akkeshi Station), Hokkaido National Fisheries Research Institute, Fisheries Research Agency
  • SASAKI MASAYOSHI
    Graduate School of Fisheries Sciences, Hokkaido University Kushiro Fisheries Research Institute, Local Independent Administrative Agency, Hokkaido Research Organization

Bibliographic Information

Other Title
  • 北海道えりも岬以東海域におけるマツカワ <i>Verasper moseri</i> の年齢と成長
  • 北海道えりも岬以東海域におけるマツカワVerasper moseriの年齢と成長
  • ホッカイドウエリモミサキ イトウ カイイキ ニ オケル マツカワ Verasper moseri ノ ネンレイ ト セイチョウ

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Description

  The age and growth pattern of barfin flounder Verasper moseri collected with gill nets, bottom set nets, and beam trawl nets in the eastern coastal waters of Cape Erimo, Hokkaido, Japan from April to December in 2007-2009 were examined. Numbers of individuals with an opaque edge on the blind side otolith increased in April-July but decreased in August-December. Age was determined by counting the outer margins of the transparent rings. Both males and females showed high growth rates in summer, but stagnated from November to May. Total lengths (in mm) and the ages of the fish (in years) in the catch were fitted to von Bertalanffy growth equations assuming a hatch date of April 1. Estimated equations were as follows: TLt=854.3{1−exp[−0.249(t−0.021)]} for females and TLt=518.5{1−exp[−0.512(t−0.089)]} for males. Compared to data in the literature for V. moseri from western waters, barfin flounder from the eastern waters of Cape Erimo exhibited faster growth. The summer water temperatures in the eastern waters (≤20℃) may be more suitable for rapid growth of this species.<br>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 78 (6), 1170-1175, 2012

    The Japanese Society of Fisheries Science

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