CAJ | 학술논문

2010年5月,在湛江湾海域设立10个站点对大型底栖生物进行调查,分析湛江湾大型底栖生物的种类组成、生物量、栖息密度和生物多样性特征,并通过聚类(CLUSTER)和MDS排序对大型底栖生物群落进行划分.结果表明,调查海域共有底栖生物共7门112种,环节动物门、软体动物门和节肢动物门为湛江湾大型底栖生物的主要类群.生物量分布范围为0.93~98.20 g·m-2,其中软体动物门的平均生物量最高值.栖息密度分布范围为6.11~24.80 ind·m-2,其中以环节动物门(24.08 ind·m-2)和星虫动物门(22.22 ind·m-2)最高.该海域大型底栖生物群落物种较为丰富,但多样性差.根据Bray-Curtis相似性系数聚类分析和多维尺度排序分析结果,可将湛江湾大型底栖动物划分为4个群落.丰度生物量曲线(ABC)分析结果,湛江湾大型底栖生物受到严重的环境污染或者扰动,群落结构不稳定.与其他海域大型底栖生物种类数、生物量和丰度的比较分析结果,湛江湾的生物量和丰度偏低.
2010년5월,재담강만해역설립10개참점대대형저서생물진행조사,분석담강만대형저서생물적충류조성、생물량、서식밀도화생물다양성특정,병통과취류(CLUSTER)화MDS배서대대형저서생물군락진행화분.결과표명,조사해역공유저서생물공7문112충,배절동물문、연체동물문화절지동물문위담강만대형저서생물적주요류군.생물량분포범위위0.93~98.20 g·m-2,기중연체동물문적평균생물량최고치.서식밀도분포범위위6.11~24.80 ind·m-2,기중이배절동물문(24.08 ind·m-2)화성충동물문(22.22 ind·m-2)최고.해해역대형저서생물군락물충교위봉부,단다양성차.근거Bray-Curtis상사성계수취류분석화다유척도배서분석결과,가장담강만대형저서동물화분위4개군락.봉도생물량곡선(ABC)분석결과,담강만대형저서생물수도엄중적배경오염혹자우동,군락결구불은정.여기타해역대형저서생물충류수、생물량화봉도적비교분석결과,담강만적생물량화봉도편저.
The situations of macrobenthos in Zhanjiang Bay have been investigated in 10 sites during May 2010, analyzing the species composition, biomass, population density and species diversity and classifying on community structure by the method of CLUSTER and MDS. A total of 112 species of 7 phyla were identified, including Annelida, Mollusca and Arthropoda, which were the dominant phyla in Zhanjiang Bay. Biomass ranged from 0.93 to 98.20 g/m2, with the highest average biomass of Mollusca. Population density ranged for 6.11 to 24.80 ind/m2, and population density of Annelida (24.08 ind/m2) was the highest, followed by Sipuncula (22.22 ind/m2). The community species of the macrobenthos in the area is relatively abundant while the diversity is poor. According to the analysis of clustering and multidimensional scaling ordination, macrobenthic animals in Zhanjiang Bay could be divided into 4 communities. Through the abundance/biomass curve analysis, macrobenthic organisms in Zhanjiang Bay was affected so seriously by environmental pollution or disturbance that the community structure was unstable. Compared with the other marine sites,the number of species, biomass and abundance of the Zhanjiang Bay were lower.