摘要
基于2013年5月在温州瓯飞滩邻近海域底拖网调查数据,采用传统多样性分析、ABC曲线、群落聚类分析和非度量多维测度相结合的方法,对游泳动物群落结构及多样性进行研究。结果显示,渔获物中游泳动物种类共87种,其中鱼类55种,虾类18种,蟹类10种,头足类4种。游泳动物群落中优势种为六丝钝尾虎鱼（Amblychaeturichthys hexanema）、银鲳（Pampus argenteus）和龙头鱼（Harpodon nehereus）,重要种为中国花鲈（Lateolabrax maculatus）、棘头梅童鱼（Collichthys lucidus）等17种。游泳动物个体密度为304.6×103尾·km-2,质量密度为365.8 kg·km-2。经聚类分析和非度量多维标度（NMDS）分析,该海域游泳动物群落在空间上可分为3个站位组。游泳动物群落种类组成在组内站位间及组间的比较均差异极显著（R=0.463~0.807）。ABC曲线表明,游泳动物群落处于较严重的干扰状态,群落中个体较小、生长速度较快的r对策者在群落中占据重要地位。Shannon-Wiener多样性指数（H＇）为1.31~3.74;Pielou均匀度指数（J＇）为0.33~0.78;Margalef物种丰富度指数（D）为1.80~5.81。
Based on the bottom trawl surveys in May of 2013, we investigated the community structure and biodiversity of nekton near Oufei Beach of Wenzhou by traditional diversity analysis, abundance-biomass comparison curves, clustering analysis and non-metric multidimensional scaling. A total of 87 species were collected, including 55 species of fish, 18 species of shrimps, 10 species of crabs and 4 species of cephalopods. The dominant species were Amblychaeturichthys hexanema, Pampus argenteus and Harpodon ne- hereus; the important species were Lateolabrax maculatus, Collichthys lucidus and other 15 species. The densities of nekton quantity and weight were 304. 6 x 103 ind＇km-2 and 365.8 kg-km-2, respectively. Cluster analysis and non-metric multidimensional scaling （NMDS） analysis reveal that the nekton community could be spatially clustered into three groups. ANOSIM analysis shows very signifi- cant difference in nekton species composition among all groups （R = 0. 463 - 0. 807）. The abundance and biomass curves （ABC） in- dicate that the nekton community was seriously disturbed, and the fast-growing, small-sized and opportunistic r-strategist was dominant in the nekton community. The Shannon-Wiener diversity index （H＇）, Pielou evenness index （J＇） and Margalef species richness index （D） ranged from 1.31 to 3.74, 0. 33 to 0. 78, and 1.80 to 5.81, respectively.
出处
《南方水产科学》
CAS
CSCD
北大核心
2015年第3期7-15,共9页
South China Fisheries Science
基金
国家自然科学基金项目(41006075)
浙江省重中之重学科"海洋科学学科"
关键词
游泳动物
群落结构
多样性
温州瓯飞滩
nekton
community structure
diversity
Oufei Beach of Wenzhou
