강원 사천연안 자연암반의 해조류 군락과 저서동물 군집

다국어 초록 (Multilingual Abstract)

Distribution and community of benthic algae and macrozoobenthose were investigated in a natural rock area off the Sacheon coast of Gangnung Gwangwon Province. Major results are summarized as follows: Macoalgal assemblage collected in the natural rock of Sacheon constituted a total of 36 species, including 4 species (11.1%) of Chlorophyta, 10 species (27.8%) of Ochrophyta, 22 species (61.1%) of Rhodophyta, with biomasses ranging from 161.7 to 1,278.1 gwwt/㎡. The most dominant macroalgal species were Plocamium telfairiae, Sargassum horneri and Grateloupia cornea. Major grazers in the natural rock of Sacheon were echinodea, univalve shell, and Aplysia. Their monthly abundances were 29-56 ind./225㎡ in echinode, 20-46 ind./225㎡ in univalve shell, and 3-9 ind./225㎡ (with the exception of no appearance in August to October) in Aplysia. Epibenthic zoobenthos in the natural rock of Sacheon were identified by 25 species of five phyla. Of these, Mollusca was highest with 11 species, followed by six species of Echinodermata and Porifera, respectively, and one species of Arthropoda and Chordata, respectively.