거제 연안에 분포하는 부유성 난과 자치어의 종조성

Species Composition of Ichthyoplankton in Coastal Waters off Geoje Island, Korea

Species composition and community structure of fish eggs and larval fishes in coastal waters off Geoje island were investigated from November, 2018 to August, 2019. Durng the study period, the fish eggs were identified as belonging to 9 taxa. The dominant species of fish eggs were Engrauils japonicus, Nuchequula nuchalis, and Sillago japonica. These three species accounted for 73.2% of the total number of individuals collected. The collected larval fishes were identified into 16 taxa, 15 families, and 4 orders. The dominant species of larval fish were E. japonicus, N. nuchalis, and Sebastes schlegelii. These three species accounted for 61.4% of the total number of individuals collected. The diversity index of the larval fishes was the highest in summer by 1.92 and the lowest in winter by 1.30. The community similarity of each season was the highest between spring and summer by 54.6%.