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전라북도 곰소만 연안조망에 어획된 수산생물의 종조성 및 군집구조

Species composition and community structure of aquatic organisms caught by the coastal beam trawl in the Gomso Bay, Jeollabuk-do of South Korea

윤상철|최지훈|강명희|김진구|조현수|주영환
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)|2024.05|수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)|제60권 제2호|pp. 101-113|DOI 10.3796/KSFOT.2024.60.2.101

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참고문헌

키워드

곰소만Gomso Bay종조성Species compositionCommunity structure군집구조연안조망주둥치Coastal beam trawlLeiognathus nuchalis
주제분류수산학

초록

본 연구는 2022년 1월부터 12월까지 전라북도 곰소만에서 조망어구를 이용하여 어획한 수산생물의 종조성 및 군집구조를 조사하였다. 조사기간 동안 어획된 수산생물은 총 94종으로, 20,246개체, 602,828g이 어획되었다. 분류군별로 보면 어류가 56종으로 가장 많았고, 다음으로 갑각류 21종, 이매패류 8종, 두족류 5종, 복족류 3종, 해삼류 1종 순이었다. 우점종은 주둥치로서 전체 개체수의 14.0%를 차지했으며, 다음으로 꽃게 12.1%, 갯가재 10.4%, 마루자주새우 9.9%, 중하 7.9% 순으로 나타났다. 다양도 지수는 1.72~2.55 범위로 3월에 가장 낮고, 7월에 가장 높은 것으로 나타났다. 조사기간 동안 9회 이상 출현한 27종의 수산생물에 대한 유사도 분석 결과, 3개의 그룹으로 구분되었는데. A그룹은 봄과 여름에 주로 출현한 종, B그룹은 주로 여름에 출현한 종, C그룹은 가을과 겨울에 주로 출현한 종으로 구성되었다.

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).

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태안 바다목장 해역에서 새우조망에 어획된 수산생물의 종조성 및 군집구조박준, 권대현, 류동기, 임양재, 조현수, 차병열, 황학진한국수산해양기술학회 · 수산해양기술연구2013 · 제49권 제3호사천 연안 새우조망에서 부수 어획된 어류의 군집구조김희용, 송세현, 유준택, 정재묵한국수산해양기술학회 · 수산해양기술연구2018 · 제54권 제3호고창 연안에서 중하(Metapenaeus joyneri) 포획용 시험어구에 어획된 수산생물의 종조성 및 군집구조김민선, 장호영, 조현수, 주영환한국수산해양기술학회 · 수산해양기술연구2023 · 제59권 제3호백령도 연안에서 통발에 어획된 수산생물의 종조성 및 군집구조박준, 김맹진, 김정년, 임양재, 정경숙한국수산해양기술학회 · 수산해양기술연구2018 · 제54권 제4호태안 연안에서 통발어선과 자망어선의 상업적 조업에 어획된 수산생물의 종조성 및 계절 변동권대현, 박종수, 임양재, 정경숙, 조현수, 차병열, 황학진한국수산해양기술학회 · 수산해양기술연구2012 · 제48권 제4호고흥 나로도 연안에서 새우조망에 어획된 어류의 종조성 및 월변동유태식, 이성훈, 지현일, 한경호한국수산해양기술학회 · 수산해양기술연구2020 · 제56권 제1호

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