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Species composition of bycatch in the shrimp beam trawl fishery of coastal Sacheon, Korea

사천 연안 새우조망에서 부수 어획된 어류의 군집구조

  • SONG, Se Hyun (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • JEONG, Jae Mook (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • YOO, Joon Taek (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • KIM, Hee Yong (Research and development planning Division, National Institute of Fisheries Science)
  • 송세현 (국립수산과학원 수산자원연구센터) ;
  • 정재묵 (국립수산과학원 수산자원연구센터) ;
  • 유준택 (국립수산과학원 수산자원연구센터) ;
  • 김희용 (국립수산과학원 연구기획과)
  • Received : 2018.06.20
  • Accepted : 2018.08.01
  • Published : 2018.08.31

Abstract

A study for species composition and abundance of the fish assemblages in the coastal Sacheon Bay, Korea were conducted using monthly collection by a shrimp beam trawl from March 2015 to February 2016. The number of individuals, biomass and species diversity indices fluctuated with the station and month. Of all 73 species collected, the dominant species in terms of numbers were Liparis tanakae, Zoarces gillii, Amblychaeturichthys hexanema, Ricuzenius pinetorum and Pleuronichys cornutus. The peak number of fishes occurred in March and April, whereas the biomass of fishes was highest in April. The numbers and biomass of fishes were lower in February corresponding with the low temperature, and diversity indices were highest in June. Due to those seasonal difference in abundance of the dominant species, fish community were divided into three main groups. In addition, seasonal difference by station of fish community were devided into four main groups. Juvenile fishes of coastal Sacheon were presented during the study period. It presented that the study area served as an important role in spawning and nursery ground for fisheries resource.

Keywords

References

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