전자저널 > 전자저널 > Spatial Species Diversity of Benthic Macroinvertebrates on the Intertidal Zone of Chujado, Cheju Islands

Spatial Species Diversity of Benthic Macroinvertebrates on the Intertidal Zone of Chujado, Cheju Islands

Jung-Jae Lee and Jae-Min Hyun

Department of Mar. Biology, College of Ocean and Department of Fisheries Biology

A study on the distribution and seasonal changes of the benthic macroinvertebrates community was performed on the 5 intertidal rocky shores of Chujado in the Cheju-Channel during four seasons from March 1996 to February 1997. The macroinvertebrates identified in Chujado totally composed of 9 phyla, 18 classes, 38 orders, 147 species. The macroinvertebrates idetified according to the stations were 9 phyla, 138 species in Sinyangri (St. 1); 8 phyla, 134 species in Yechori (St. 2); 8 phyla, 114 species in Muckri (St. 3); 7 phyla, 119 species in Younghungri (St. 4); and 8 phyla, 131 species in Daeseori (St. 5); The species diversities of the lower intertidal zones were higher than those of middle and upper intertidal zones, however, the seasonal appearance in number of species was not different among the stations. The vertically distributed dominant species in intertidal zone were: Nodilittorina exigua and Nerita japonica in the supralittoral zones; Monodonta labio labio and Buccinulum ferrea in the upper zones; Septifer keenae and Lunella coronata corensis in the middle zones; Purpura clavigera, S. keenae and Pomatoleios krausii in the submiddle zones; and Actinia mesembryanthemum, Tetracliata squamosa japonica and N. schrenckii in the lower zones. The intertidal community structures between Chujado and Cheju coast showed that Chujado composed of fewer number of species and lower value of species diversity and richness indices than Cheju coast.

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