Abstract
Seasonal fluctuation in abundance and species composition of fish in coastal waters off Jinhae bay were investigated using seasonal samples collected by a fyke net from July, 2010 to April, 2011. A total of 1,869 fishes were sampled and classified into 23 species, 18 families, and 7 orders. The dominant species were Sebastes inermis (184 individuals, 9.8%), Nuchequula nuchalis (158 individuals, 8.5%), and Konosirus punctatus (143 individuals, 7.7%). The highest number of individuals was found in Fall (572 individuals), while the lowest number of individuals was found in Winter (416 individuals). The diversity index was the highest in winter (H’=3.005) and the lowest in fall (H’=2.953). The dominance index was the highest in fall (D=21.0%) and the lowest in spring (D=16.5%). The economically important species in Jinhae bay were Conger myriaster, Engraulis japonicus, Konosirus punctatus, Sebastes inermis, Lateolabrax japonicus, Acanthopagrus schlegelii, and Paralichthys olivaceus.
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