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对南海北部陆架中段的44个底质样品进行介形虫定性和定量分析,以查明其属种成分、空间分布以及各项环境因素的控制作用。共计鉴定介形虫85属185种,无论种的分异度或介形虫丰度均显示出离岸随着水深、水温和盐度增长而加大的趋势,在中、外陆架达最高值。此区介形虫三个组合、四个亚组合的分布,与水团的分布格局密切相关。
Forty-four sediment samples in the middle shelf of the northern South China Sea were characterized by qualitative and quantitative analysis of Ostracoda so as to find out the control effects of their genera and composition, spatial distribution and various environmental factors. A total of 185 genera and 85 genera of Ostracoda were identified. Both the species diversity and ostracode abundance showed that the offshore tended to increase with the increase of water depth, water temperature and salinity. . The distribution of three combinations and four sub-assemblies of ostracods in this area is closely related to the distribution pattern of water masses.