월성원자력발전소 주변해역에서 저층트롤에 의해 어획된 어류의 종조성
Seasonal Variation of Species Composition of Fish in the Coastal Waters off Wolseong Nuclear Power Plant, East Sea of Korea by Otter Trawl Survey
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초록
We examined seasonal variation in fish species composition in coastal waters near Wolseong Nuclear Power Plantin the East Sea of Korea. A total of 72 species, 39 families, 14 orders, 46,214 individuals, and 4,639,667 g were collected. Glyptocephalus stelleri was the most dominant species by number of individuals (35%), followed by Clupeapallasii (26%). Liparis tanakai and Lophius litulon were the dominant species by biomass, accounting for 46% and28%, respectively. We showed that bottom salinity and temperature are the most important environmental factorsinfluencing fish species composition. Although bottom salinity did not differ statistically among seasons or stations,we detected some variation among stations. Additionally, bottom temperature differed among seasons and stations(P<0.05), affecting numbers of individuals and biomass. Thus, seasonal variation in fish assemblages can be classifiedinto two groups: spring/summer and autumn/winter.
Abstract
We examined seasonal variation in fish species composition in coastal waters near Wolseong Nuclear Power Plantin the East Sea of Korea. A total of 72 species, 39 families, 14 orders, 46,214 individuals, and 4,639,667 g were collected. Glyptocephalus stelleri was the most dominant species by number of individuals (35%), followed by Clupeapallasii (26%). Liparis tanakai and Lophius litulon were the dominant species by biomass, accounting for 46% and28%, respectively. We showed that bottom salinity and temperature are the most important environmental factorsinfluencing fish species composition. Although bottom salinity did not differ statistically among seasons or stations,we detected some variation among stations. Additionally, bottom temperature differed among seasons and stations(P<0.05), affecting numbers of individuals and biomass. Thus, seasonal variation in fish assemblages can be classifiedinto two groups: spring/summer and autumn/winter.
참고문헌 (25)
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