Fishery characteristics of barfin flounder Verasper moseri in southern Tohoku, the major spawning ground, after the start of large-scale stock enhancement in Hokkaido, Japan

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• 作者：Toshihiro Wada (1)
  Kyoichi Kamiyama (2)
  Shinya Shimamura (2)
  Osamu Murakami (3)
  Tadashi Misaka (4)
  Masayoshi Sasaki (5)
  Takaaki Kayaba (5)
  
• 关键词：Commercial landings ; Fukushima Prefecture ; Released seedlings ; Southern Tohoku ; Spawning ground ; Spawning migration ; Stock enhancement ; Verasper moseri
• 刊名：Fisheries Science
• 出版年：2014
• 出版时间：November 2014
• 年：2014
• 卷：80
• 期：6
• 页码：1169-1179
• 全文大小：1,333 KB
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  11. Yoshida H, Takaya Y, Matsuda T (2011) Age, total length and season of artificially reared barfin flounder, / Verasper moseri, released from Hokkaido and recaptured in waters off eastern Honshu from Aomori to Ibaraki prefectures. J Fish Technol 3:121-26 (in Japanese with English abstract)
  12. Kayaba T (2013) Stock enhancement of barfin flounder / Verasper moseri. In: Aritaki M (ed) Stock enhancement and risk management for coastal fishery resources. Monitoring on genetic diversity and efficiency of stock enhancement. Kouseisha-Kouseikaku, Tokyo, pp 9-1 (in Japanese)
  13. Wada T, Kamiyama K, Shimamura S, Yoshida T, Kayaba T, Sasaki M (2013) Detection of fishing grounds, fishing season, and size distribution of stocked barfin flounder / Verasper moseri in southern Tohoku, the Pacific coast of eastern Japan. Aquac Sci 61:39-6
  14. Wada T, Kamiyama K, Shimamura S, Mizuno T, Nemoto Y (2012) Effectiveness of stock enhancement of a rare species, spotted halibut / Verasper variegatus, in Fukushima, Japan. Aquaculture 364-65:230-39 CrossRef
  15. Hattori T, Narimatsu Y, Ito M, Ueda Y, Kitagawa D (2008) Annual changes in distribution depths of bighand thornyhead / Sebastolobus macrochir off the Pacific coast of northern Honshu, Japan. Fish Sci 74:594-02 CrossRef
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• 作者单位：Toshihiro Wada (1)
  Kyoichi Kamiyama (2)
  Shinya Shimamura (2)
  Osamu Murakami (3)
  Tadashi Misaka (4)
  Masayoshi Sasaki (5)
  Takaaki Kayaba (5)
  
  1. Soma Branch, Fukushima Prefectural Fisheries Experimental Station, Soma, Fukushima, 976-0022, Japan
  2. Fukushima Prefectural Fisheries Experimental Station, Iwaki, Fukushima, 970-0316, Japan
  3. Mariculture Fisheries Research Institute, Hokkaido Research Organization, Muroran, Hokkaido, 051-0013, Japan
  4. Wakkanai Fisheries Research Institute, Hokkaido Research Organization, Wakkanai, Hokkaido, 097-0001, Japan
  5. Kushiro Fisheries Research Institute, Hokkaido Research Organization, Kushiro, Hokkaido, 085-0024, Japan
  
• ISSN：1444-2906

文摘

Commercial landings of a rare pleuronectid flatfish, barfin flounder Verasper moseri, recovered drastically after large-scale stock enhancement in Hokkaido?conducted?since 2006. This study investigated commercial landings, fishing grounds, size distributions, and sex and age compositions of barfin flounder during 2007-011 in southern Tohoku, their major spawning ground, which is over 700?km south of Hokkaido. Landings, mostly comprising stocked fish, increased drastically in southern Tohoku: from 2.0?tons in 2007 to 20.8?tons in 2010. Over 98?% of them were landed during January–April, with the peak period during February–March. Fishing logbook data of offshore bottom-trawl vessels during 2007-010 revealed the upper continental slope off southernmost Tohoku as the main fishing ground (35°40′-6°50′N, annual weighted mean depth 267-99?m). Two size modes in the landings consisted of males (ca. 40?cm) and females (ca. 60?cm). The main age at fishery recruitment in southern Tohoku was younger for males (age 2+) than for females (ages 3+ and 4+), the result of which was that the female percentage was lowest at 1.5?% in 2009 and highest at 7.9?% in 2011. Our results showed clearly how the effectiveness of large-scale stock enhancement in Hokkaido extended to southern Tohoku in association with spawning migration of stocked barfin flounder.