混凝土礁体和铁制礁体附着生物群落多元统计分析

Multivariate analysis of organisms communities attached on concrete and iron reefs

根据2008年9月对深圳杨梅坑人工鱼礁区混凝土礁体和铁制礁体上附着生物的调查资料,采用主成分分析、聚类分析和多维尺度分析方法研究了人工鱼礁附着生物组成及群落结构的基本特征。结果表明,三角藤壶(Balanus trigonus)、乳突皮海鞘(Molgula manhattensis)、翡翠贻贝(Perna viridis)、须鳃虫(Cirriformia tentacu-lata)、细肋肌蛤(Musculus mirandus)、美丽唇齿螺(Engina pulchra)、真蛇尾(Ophiurasp.)、变化短齿蛤(Brachidontes variabilis)、背裂虫(Opisthosyllis brunnea)、红网孔苔虫(Iodictyum axillare)、多室草苔虫(Bugulaneritina)、珠带拟蟹守螺(Cerithidea cingulata)、毛偏顶蛤(Modiolus barbatus)、纹斑棱蛤(Trapezium liratum)、乳蛰虫(Thelepussp.)和冠瘤海鞘(Styela canopus)等种类构成了人工鱼礁附着生物的主体。混凝土礁体和铁制礁体上层和下层的附着生物群落基本上聚为一类;而中层的附着生物群落没有聚为一类。

According to the survey data of organisms attached on concrete and iron reefs in September, 2008 in Yangmeikeng, Shenz- hen, the compositions of common species and the characteristics of the community structure were studied based on principal components analysis, the hierarchical cluster analysis and multidimensional scaling. The results showed that the common species were composed of Balanus trigonus, Molgula manhattensis, Perna viridis, Cirriformia tentaculata, Musculus mirandus, Engina pulchra, Ophiura sp. , Brachidontes variabilis, OpisthosyUis brunnea, Iodictyum axillare, Bugula neritina, Cerithidea cingulata, Modiolus barbatu, Trapezium liratum, Thelepus sp. and Styela canopus. Organisms both attached in upper layer and lower layer of concrete and iron reefs generally clustered together, but those in middle layer did not.