Quantitative analyses of decapod crustaceans at a rocky intertidal shore in the Gulf of Oman, Iran: diversity, zonation and monsoonal fluctuations

摘要: This paper provides data on diversity, zonation and seasonal fluctuations of decapod crustaceans at the northern Gulf Oman coast, based quantitative qualitative samplings. A total 75 species belonging to four infraorders, 27 families 48 genera were identified. These include 20 new records for entire 13 its Iranian coast. The mid-intertidal zone showed a higher mean diversity abundance than high- low-intertidal zones. in high-intertidal significant differences with mid- indices richness (Margalef), (Shannon) evenness (Pielou) among intertidal Most identified (>60%) that had high values their frequency occurrence relative an overlapping vertical distribution, present all three or just two defined Other found only one zones (non-overlapping distribution). community dissimilarity low-intertidal. Both be lowest highest during south-west north-east monsoons, respectively. During monsoon, decapods declined dramatically, but ecological did not show any statistically difference sampling periods.