极地研究 ›› 1992, Vol. 4 ›› Issue (4): 62-67.

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南极长城湾浅海底栖生物群落分析

吴启泉;吴宝铃;陈木;黄凤鹏   

  • 出版日期:1992-12-30 发布日期:1992-12-30

COMMUNITY ANALYSIS OF SHALLOW SEA BENTHOS IN THE GREAT WALL BAY,ANTARCTICA

  • Online:1992-12-30 Published:1992-12-30

摘要:

本文采用 1 987年 1 2月 - 1 988年 3月南极长城湾浅海区底栖生物的三航次 1 9个定量采泥站和 4个拖网站的调查资料。根据环境特征、种类组成的多样性和种间个体分配的均匀度 ,采用了聚类方法将调查区分为三个底栖生物群落分布区。并对各群落的结构作进一步分析 ,分为高多样性、中多样性和低多样性三种结构类型。并研究了群落结构与环境因素的关系 ,指出底栖生物的群落结构与底质类型和沉积物稳定性的关系最为密切 ;在深度梯度度不大的海区 ,底栖生物群落结构与深度梯度没有明显关系。

关键词: 底栖生物群落;群落结构;多样性指数;均匀度;底质类型;沉积物

Abstract:

The data used in this paper were acquired at 19 quantitative dredging stations and 4 trawling station during the three crusies of the 4th Chinese Antarctic Research Exproditions for investigating the shallow sea benthos in Great Wall Bay, from the period of December 1987 to March 1988. Based on environmental characteristics, diversity of species composition and the eveness of interspecific distribution of individuals, cluster methods were used to divide the investigated area into three benthic community distribution areas. The structures of the various communities were further divided into 3 structural types, namely, high diversity, intermediate diversity and low diversity types. From the study of the relationship between community structure and environmental factors it was pointed out that there is an extremely close relationship between benthic community structure and the stability of the bottom types and sediments, whereas in sea areas where depth gradient is not large, there isno obvious relationship between benthic community structure and depth gradient.