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Seasonal Variations of Fisheries Resources Composition in the Coastal Ecosystem of the Yongil Bay, Korea
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 Title & Authors
Seasonal Variations of Fisheries Resources Composition in the Coastal Ecosystem of the Yongil Bay, Korea
Lee, Jae Bong; Shin, Young Jae; Lee, Soo Jeong; Lee, Jong Hee; Choi, Young Min; Lee, Dong Woo; Kim, Sang Woo; Yang, Jae Hyeong;
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 Abstract
Coastal marine ecosystem plays important role of spawning and nursery grounds for fisheries resources. Yongil Bay is one of major coastal marine ecosystems, which is located in the southwestern East Sea of Korea. Species composition and abundance of marine organism in the Yongil Bay were investigated by season from March to November 2009. Gill net and pot fisheries were used for survey of pelagic and demersal species composition, and collected 106 species, 67 families, and 7 taxa of fisheries resources from the coastal ecosystem. Species were included 2 species in Ascidiacea, 2 species in Bivalvia, 6 in Cephalopoda, 22 in Crustacea, 5 in Echinodermata, 12 in Gastropoda, and 57 in Pisces. Diversity indices (Shannon index, H') showed seasonal variation with low value of 2.11 in winter, and high value of 2.63 in autumn. Main dominant species were Asterias amurensis, Pleuronectes yokohamae, Siphonalia spadicea fuscolineata, Trachurus japonicas, Sillago japonica, Conger myriaster, Volutharpa ampullaceal, Engraulis japonicus, Asterina pectinifera, and Portunus (Portunus) sanguinolentus that were occupied over 71.5% of total individuals, and 52.9% of wet weight. Seasonal variations of fisheries resources composition were discussed on correlationships with those of environmental factors in the coastal ecosystem of the Yongil Bay in Korea. Those results from this study will provide scientific data and information to develop the ecosystem-based coastal fisheries assessment and management system in Korea.
 Keywords
Seasonal variations;Fisheries resources composition;Coastal ecosystem;Yongil Bay;PCA;
 Language
Korean
 Cited by
1.
월성원자력발전소 주변해역에서 저층트롤에 의해 어획된 어류의 종조성,최정화;김정윤;김진구;김종빈;

한국수산과학회지, 2014. vol.47. 5, pp.645-653 crossref(new window)
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