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Species composition and community structure caught by shrimp beam trawl in the marine ranching ground of Taean, Korea

태안 바다목장 해역에서 새우조망에 어획된 수산생물의 종조성 및 군집구조

  • Park, Jun (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Jo, Hyun-Su (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Im, Yang-Jae (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Cha, Byung-Yeul (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Kwon, Dae-Hyeon (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Ryu, Dong-Ki (Department of Fisheries Science, Kunsan National University) ;
  • Hwang, Hak-Jin (Strategic Project Division, Korea Fisheries Resources Agency)
  • 박준 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 조현수 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 임양재 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 차병열 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 권대현 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 류동기 (군산대학교 수산과학과) ;
  • 황학진 (한국수산자원관리공단 전략사업실)
  • Received : 2013.06.27
  • Accepted : 2013.08.10
  • Published : 2013.08.31

Abstract

Species composition and seasonal variation of aquatic organism in the marine ranchig ground of Taean, Korea were investigated using shrimp beam trawl from January to December 2010. A total of 99 species, $5,355,816ind./km^2$ and $84,697kg/km^2$ of aquatic organism were collected. Among them, fish include 9 orders 33 families 54 species, crustaceans include 2 orders 15 families 30 species, cephalopods consist of 3 orders 4 families 5 species, gastropods include 2 orders 3 families 4 species, echinoidea sp. include 1 order 2 families 2 species, bivalves were composed of 2 orders 2 families 2 species, and holothuroids include 1 family 1 order. According to the dominants by month, Palaemon gravieri was dominant in January, Cynoglossus joyneri was dominant in February, March, and June, and Hexagrammos otakii was dominant, in July. And Oratosquilla oratoria was dominant echinoidea sp. was dominant in April, May, and August and in September, October, November, and December. Cluster analysis based on species composition of the 38 most common species showed that the species were separated into 5 different groups. Group A was composed of species which were abundant in spring and summer, group B was composed of year-round residents, and group C was composed of species which were abundant in autumn.

Acknowledgement

Supported by : 국립수산과학원

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