Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Changes of Fishing Ground of the Large Pair Trawl Fishery off Korean Waters

한국 근해 쌍끌이대형저인망어업의 어장 변화

  • Lee, Dong-Woo (Fisheries Resources Management Division, National Fisheries Research & Development Institute) ;
  • Choi, Kwang-Ho (Fisheries Resources Management Division, National Fisheries Research & Development Institute) ;
  • Kang, Sukyung (Fisheries Resources Management Division, National Fisheries Research & Development Institute)
  • 이동우 (국립수산과학원 자원관리과) ;
  • 최광호 (국립수산과학원 자원관리과) ;
  • 강수경 (국립수산과학원 자원관리과)
  • Received : 2013.07.31
  • Accepted : 2013.10.16
  • Published : 2013.12.31
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Abstract

Changes in fishing ground of the large pair trawler were investigated by year, month and species off Korean waters. We used catch data by sea-block lat.${\times}$long.:$30^{\prime}{\times}30$) of the National Fisheries Research and Development Institute (NFRDI) and monthly fishing production statistics of Korean statistic information service from 1990 to 2007. In the 1990s, the demersal fish like Larimichthys polyactis, Collichthys sp, Portunus trituberculatus and Muraenesox cinereus were the dominant species, and in the 2000s, they were changed from demersal fish into pelagic fish like Scomberomorus niphonius, Scomber japonicus, Engraulis japonicus and Todarodes pacificus. Species composition of catch showed temporal variation by cluster analysis deviding into 4 period, 1990-1994, 1995-2000, 2001-2003 and 2004-2007. Fishing ground in the 2000s was decreased up to 2/3 in the 1990s, while the density of catch in the fishing ground in 2000s was higher than the 1990s.

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References

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