한반도 연안에서 서식하는 대형저서동물 우점종의 서식지 환경 특성 = Habitat Environment Characteristics of Dominant Species of Macrozoobenthos in Korean Subtidal Waters

다국어 초록 (Multilingual Abstract)

This study investigates habitat environmental characteristics of dominant macrozoobenthos species in Korean subtidal waters using data from 2015 to 2020 provided by the National Marine Ecosystem Monitoring Program. The dominant species were identified according to the occurrence numbers (frequency) and mean individual numbers (density) of macrozoobenthos. Polychaetes such as Heteromastus filiformis, Sigambra tentaculata, Sternaspis scutata were generally dominant in the occurrence frequency. Dispio oculata and Potamocorbula amurensis were predominant in the density of macrozoobenthos. The dominant species mainly occurred in habitats with water depths of 10~25 m, Total Organic Carbon (TOC) of 0.2~1.2%, and mean grain sizes of 3~7Φ. Characteristically, Scoletoma longifolia and Magelona johnstoni were appeared in sedimentary environments with a deeper water depth (50~100 m) and a higher TOC content (1.5~3%) than other dominant species. The occurrence pattern showing high density according to the preferred habitat environmental characteristics of each dominant species also showed distinct differences depending on the species.