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황해 중부에서 저층 트롤에 어획된 어류의 종조성 및 양적변동
주현(Hyun Joo),추보라(Bora Chu),이성훈(Seonghoon Lee),유태식(Taesik Yu),한경호(Kyeongho Han) 한국해양바이오학회 2020 한국해양바이오학회지 Vol.12 No.1
Fish, caught by bottom trawling in the middle of the Yellow sea (east of Korea), in the spring and summer of 2016 were assessed for species composition and fluctuation in their abundance. The fish were studied at four research stations (St.) and were found to be composed of 46 species, 31 families, and 14 orders. The dominant species caught were Engraulis japonicus, Larimichthys polyactis, Johnius grypotus, Liparis tanakae, and Larimicthys crocea. All the species were assessed for their numbers, richness, diversity, and dominance to gain a measure of the biodiversity. The highest number of individuals was recorded at St. 4 (50,053 individuals), while the lowest number of individuals was recorded at St. 1 (44,090 individuals). The evenness index was the highest at St. 2 (E = 0.65) and lowest at St. 3 (E = 0.62). The diversity index was the highest at St. 4 (H’ = 2.31) and lowest at St. 3 (H’ = 2.23). Furthermore, the dominance index was the highest at St. 3 (D = 54.9%) and lowest at St. 2 (D = 47.7%).