Studies on the Growth and Environmental Development for the Protection-Nourishment of Fisheries Resources - 1. Distribution of Demersal Fishes in the Chinhae Bay. Korea -

어자원 보호육성을 위한 생육환경 개선에 관한 연구- I - 소형저인망에 채집된 진해만 저서어류의 분포 -

Demersal fishes as second study for the protection-nourishment of fisheries resources in Chinhae Bay were analysed using fish samples collected by a small otter trawler at bimonthly-interval from August, 1997 to June, 1998. Of the 55 species identified, Hexagrammos otakii, Pleuronichthys cornutus, Leiognathus nuchalis, Thrissa koreana, Callionymous lunatus, Acanthogobius flavimanus and Trachurus japonicus predominated in abundance. Especially, Hexagrammos otakii, Pleuronichthys cornutus and Leiognathus nuchalis were always collected at anywhere around a year in the bay. The seasonal fluctuation of number of species is very large as the ranging from 14 species in August to 25, December. The diversity index of individual number and biomass by month and station is 0.68(February)~1.13(October), 0.38(February)~1.06(October) respectively. The indices above mean that the number of species were not distributed broadly over the bay and also concentrated in several species only owing to the local pollutant extent.