위도구배에 따른 한국 동해안 암반조하대 복족류의 출현 종 수 및 종다양성 변이

Abstract

In the present study we examined latitudinal trend of the number of species and species diversity of rocky subtidal shelled gastropods. Specimens were sampled from four wave-exposed sites along the eastern coast of Korea between Sockcho (38°14″N) and Busan (35°06″N), covering a range of over ca. 440 km and 4° of latitude. At a small local scale, the number of species showed a latitudinal trend, decreased with decreasing of latitude, even though no clear trends in species diversity were detected. The present result, consequently, suggest that regulation of small-scale local diversity presumably results from the difference of the local micro-environment.