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http://dx.doi.org/10.15433/ksmb.2020.12.1.059

Quantitative Fluctuation and Species Composition of the Fish by Bottom Trawl in the Middle of Yellow Sea, Korea  

Joo, Hyun (Korea Fisheries Resources Agency)
Chu, Bora (Korea Ecology Institute Co., Ltd)
Lee, Seonghoon (Department of Fishery, Marine, Industry, Tourism, and Leisure, Chonnam National University)
Yu, Taesik (Department of Fisheries Sciences, Chonnam National University)
Han, Kyeongho (Department of Fisheries Sciences, Chonnam National University)
Publication Information
Journal of Marine Bioscience and Biotechnology / v.12, no.1, 2020 , pp. 59-65 More about this Journal
Abstract
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%).
Keywords
Yellow sea; Species composition; Species community structure; Fluctuation in abundance; Bottom trawl;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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