해조류 기능형군에 따른 대형무척추동물의 군집특성

Abstract

Marine macroalgae prepares essential habitat which gives shelter and provides physical environment for macrofauna. The physical functional varieties of algal substrates may affect the communities of their attached macrofauna. The aim of this study is to look at the community characteristic of macrofauna according to marine algal functional form groups. 10 different type of macroalges were monthly collected and divided into 4 functional form groups from February in 2013 to March in 2014. Species diversity was the highest at Undaria pinnatifida (53 species), following by Sargassum horneri (37 species), Chondrus ocellatus (32 species) and Myagropsis myagroides (30 species). Gastropoda, Amphipoda, Bivalvia, Polychaeta, Isopoda accounted for 98.81% of total density in all samples. Gastropoda were the most dominant taxon in thick leathery form while Amphipoda were dominated in coarsely branched form. This result indicated that particular species take an advantage of living and feeding in particular functional form group.