琼州海峡岸礁潮间带生物

Organism in intertidal zone of fringing reef at Qiongzhou Straits

本文记录了2000年7月琼州海峡西口雷州半岛灯楼角珊瑚岸礁调查采集的25种造礁石珊瑚,以及栖息于潮间带的7类39科88种底栖生物,其大多数种类属于印度 西太平洋热带区系.优势类群是软体动物和节肢动物.珊瑚礁段底栖生物的平均生物量、栖息密度和多样性值分别为1173.30g m2,790.0个 m2和5.69,由于造礁石珊瑚的存在为其他底栖生物提供了良好的生态环境,从而丰富了本区底栖生物的种类组成、数量、分布和群落结构.

During the investigation in July,2000,25 species of scleractinian corals were found in the fringing reef at Denglourjiao Cape of Leizhou Peninsula, west mouth of the Qiongzhou Straits. 88 associated macrobenthic species belonging to 7 groups and 39 families were also found in the intertidal zone of the reef, most of which belong to Indianwest Pacific tropical fauna. Molluscs and arthropod were the dominant species. The average biomass, density and diversity of coral associated macrobenthos were 1173.30g/m2, 790.0 ind/m2 and 5.69, respectively. It was showed that the existence of scleractinian corals provides suitable ecological environment for the other associated macrobenthos and makes composition of species, quantity, distribution and community structure in this region more rich and varied.