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고흥 나로도 연안에서 새우조망에 어획된 어류의 종조성 및 월변동
유태식,이성훈,지현일,한경호 한국수산해양기술학회 2020 수산해양기술연구 Vol.56 No.1
Monthly fluctuation in abundance and species composition of fish in coastal waters off Oenaro island, Goheung were investigated using seasonal samples collected by a shrimp beam trawl in 2018. A total of 5,981 fishes were sampled and classified into 48 species, 32 families, and 9 orders. The dominant species was Engraulis japonicus (993 individuals, 16.60%), Amblychaeturichthys hexanema (844 individuals, 14.11%), and Thryssa kammalensis (674 individuals, 11.27%). The highest number of individuals was found in August (958 individuals), while the lowest number of individuals was found in January (136 individuals). The diversity index was the highest in November (H’ = 2.37) and the lowest in January (H’ = 1.77). 이 연구는 2018년 1월부터 12월까지 고흥 외나로도에서 조망에 어획된 어류를 대상으로 종조성 및 군집구조를 연구하였다. 어획된 어류는 총 9목 32과 48종이었고, 5,972개체가 어획되었다. 이 중 농어목이 16과 24종으로 가장 많은 출현 종수를 보였고, 우점종은 멸치(993개체, 16.60%), 도화망둑(844개체, 14.11%), 청멸(674개체, 11.27%) 순이었다. 가장 많은 개체수가 출현한 달은 958개체가 어획된 8월이었고, 1월에 193개체로 가장 적은 개체가 어획되었다. 다양도 지수는 11월에 2.37로 가장 높았고, 1월에 0.67로 가장 낮게 나타났다.
고흥 나로도 연안에서 새우조망에 어획된 어류의 종조성 및 월변동
유태식,이성훈,지현일,한경호 한국수산해양기술학회(구 한국어업기술학회) 2020 수산해양기술연구 Vol.56 No.1
Monthly fluctuation in abundance and species composition of fish in coastal waters off Oenaro island, Goheung were investigated using seasonal samples collected by a shrimp beam trawl in 2018. A total of 5,981 fishes were sampled and classified into 48 species, 32 families, and 9 orders. The dominant species was Engraulis japonicus (993 individuals, 16.60%), Amblychaeturichthys hexanema (844 individuals, 14.11%), and Thryssa kammalensis (674 individuals, 11.27%). The highest number of individuals was found in August (958 individuals), while the lowest number of individuals was found in January (136 individuals). The diversity index was the highest in November (H’ = 2.37) and the lowest in January (H’ = 1.77).