兴化湾春、秋季游泳动物种类组成及其多样性  

The species composition and community diversity of nekton in spring and autumn in Xinghua Harbor

作　　者：王飞跃[1] 

机构地区：[1]厦门海洋职业技术学院,福建厦门361013

出　　处：《渔业研究》2017年第5期349-356,共8页Journal of Fisheries Research

基　　金：基金顼目:福建省潜在渔业资源开发利用与保护研究(FJ908020103)

摘　　要：根据2012年4月和10月拖网调查资料,分析和研究了福建兴化湾海域游泳动物的种类组成、鱼类区系特点、资源结构、密度分布及物种多样性等特征。结果表明:调查海域游泳动物有96种,其中鱼类64种、虾类11种、蟹类10种、头足类6种、口足类5种;春季游泳动物种类比秋季少。鱼类以暖水性和暖温性、底层和中上层鱼类为主,春季优势种有13种,秋季15种;春、秋季渔获的重量组成和数量组成均以鱼类为主,春季分别占64.91%和74.71%,秋季分别占79.98%和70.41%;两季游泳动物的平均重量密度为796.78 kg/km^2,平均尾数密度为72 127 ind./km^2;春季重量密度高于秋季,而尾数密度低于秋季;游泳动物种类多样性指数H'、均匀度指数J'、丰富度指数D,春季均显著低于秋季。Based on data from fisheries resources investigation by bottom trawl in waters of Xinghua Harbor in April and October of 2012,the species composition,density distribution,floristic characteristics and diversity of nekton were analyzed. The results indicated that there were 96 species of nekton in the waters,including 64 fish species,11 shrimps,10 crabs,5 stomatopods and 6 cephalopods. The kinds of nekton in spring were less than that in autumn. The fish species mainly were the warm-water,the warm-temperate,the demersal and the pelagic fish. There were 13 kinds of dominant species in spring and 15 in autumn. The density of weight and quantity were 796. 78 kg/km^2 and 72 127 ind./km^2,respectively. The density of weight in spring was higher than that in autumn,and the density of quantity in spring was lower than that in autumn. The average Shannon-wiener index（ H＇） was 2. 01. The average index in spring was lower than that in autumn.

关 键 词：游泳动物 种类组成 多样性 兴化湾 

分 类 号：S932.2[农业科学—渔业资源]