Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Species composition and community structure of aquatic organisms caught by the coastal beam trawl in the Gomso Bay, Jeollabuk-do of South Korea

전라북도 곰소만 연안조망에 어획된 수산생물의 종조성 및 군집구조

  • Young-Hwan JOO (Department of Fisheries Science Kunsan National University) ;
  • Sang-Chul YOON (Fishries Resources Reasearch Division, National Institute of Fisheries Science) ;
  • Ji-Hoon CHOI (Fishries Resources Reasearch Division, National Institute of Fisheries Science) ;
  • Myounghee KANG (Department of Maritime Police and Production System, Gyeongsang National University) ;
  • Jin-Koo KIM (Deparment of Marine Biology, Pukyong National University) ;
  • Hyun-Su JO (Deparment of Public Service in Ocean & Fisheries, Kunsan National University)
  • 주영환 (국립군산대학교 수산과학과) ;
  • 윤상철 (국립수산과학원 연근해자원과) ;
  • 최지훈 (국립수산과학원 연근해자원과) ;
  • 강명희 (경상국립대학교 해양경찰시스템학과) ;
  • 김진구 (부경대학교 자원생물학과) ;
  • 조현수 (국립군산대학교 ONSE대학 해양수산공공인재학과)
  • Received : 2024.04.17
  • Accepted : 2024.05.23
  • Published : 2024.05.31
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Abstract

This study investigated the species composition and community structure of aquatic organisms captured using coastal beam trawling in Gomso Bay, Jeollabuk-do, from January to December 2022. Throughout the experimental period, a total of 20,246 individuals belonging to 94 marine species were captured, with a combined biomass of 602,828 g. Fish exhibited the highest abundance, comprising 56 species, followed by crustacea (21 species), bivalvia (8 species), cephalopoda (5 species), gastropoda (3 species), and holothuroidea (1 species). The dominant species was Leiognathus nuchalis, constituting 14.0% of the total individuals, followed by Portunus trituberculatus at 12.1%, Oratosquilla oratoria at 10.4%, Crangon hakodatei at 9.9%, and Metapenaeus joyneri at 7.9%. The diversity index ranged from 1.72 to 2.55, with the lowest diversity observed in March and the highest in July. Cluster analysis based on species composition of the 27 most common species showed that aquatic organisms were divided into three groups: spring and summer organisms (Group A) and summer organisms (Group B) and autumn and winter organisms (Group C).

Keywords

Acknowledgement

본 연구는 2024년도 국립수산과학원 연근해 어업자원 평가 및 관리 연구(R2024002)의 지원으로 수행되었습니다.

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