浙南岛屿潮间带蟹类的区系特点

FLORISTICS TRAIT OF INTERTIDAL CRABS OF THE ISLANDS IN THE SOUTH OF ZHE JIANG

作者根据１９９０—１９９７历年对浙南岛屿潮间带生态调查所获的材料，分析了该地区蟹类的区系特点。经整理鉴定计蟹类９７种，隶属于１２科５６属，其中软相７０种、硬相３２种，硬、软相皆有出现的为５种。该地区蟹类区系以亚热带暖水性种类占优势，其次为暖温带性种类，属印度──西太平洋区系区的中国──日本亚区。蟹类的组成与分布受到海流、底质、潮汐等综合因素的影响。

The floristics trait of intertidal crabs of the islands in the south of Zhejiang was reported in this paper according to the investigation conducted during 1990-1997. There were 97 species belonging to 14 families and 56 genus, in which 70 species were of soft-intertidal zone, 32 species were of rock-intertidal zone, and 5 species were both soft-intertidal zone and rock-intertidal zone. The most proportion. of the floristics of crabs in this area was Warm-water species, the second was Warm-temperature species, the floristics belong to the China-Japan sub-region of the india-Western Pacific Ocean region. The composition and distribution of the crabs were influenced .by ocean currents, substrate and tides.