越南亲江省亲龙沿海生态系统底栖动物种类组成及分布研究

B. Nguyen, B. do
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摘要

研究结果已鉴定出海岸底栖动物坚銮173种,隶属于7个代表性类群75科122属。其中腹足类软体动物种类最多,有70种,其次是双壳类51种,甲壳类40种。其他类群所占比例较低:多毛纲有9种,舟足纲有2种,头足纲和螯角纲均有1种。分布:红树林物种组成有27种,平均物种重量为15.8 g/m2,平均物种密度为26.33种/m2,生物多样性指数较高,为3.57;潮间带底栖生物的物种组成有48种,平均物种重量为42.71 g/m2,平均物种密度为510.42 ind /m2,相对生物多样性指数为2.83。
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RESEARCH ON SPECIES COMPOSITION AND DISTRIBUTION OF BENTHIC ANIMALS IN THE COASTAL ECOSYSTEM OF KIEN LUONG, KIEN GIANG PROVINCE (VIETNAM)
Research results have identified 173 species of coastal benthic Kien Luong, belonging to 122 genera, 75 families and 7 representative groups. Among the discovered species, Gastropod Molluscs have the highest number of species with 70 species, followed by bivalve molluscs with 51 species, crustaceans with 40 species. Other groups account for a lower proportion: Polychaeta has 9 species, Scaphopoda has 2 species, Cephalopoda and Chelicerata all have 1 species.               Distribution: The species composition of mangroves has 27 species, the average species weight is 15.8 g/m2, the average species density is 26.33 inds/m2, with a high biodiversity index of 3.57; The species composition of benthic organisms in the intertidal zone has 48 species, the average species weight is 42.71 g/m2, the average species density is 510.42 inds/m2, the relative biodiversity index is 2.83.
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