长江口低盐淡水区潮间带鱼类群落结构季节及半月相变化

被引：14

作者：

张衡

何文珊

童春富

陆健健

机构：

[1] 华东师范大学河口海岸学国家重点实验室

来源：

应用生态学报 | 2008年 / 05期

关键词：

长江口; 潮间带鱼类; 季节变化; 环境因子;

D O I：

10.13287/j.1001-9332.2008.0156

中图分类号：

Q958 [动物生态学和动物地理学];

学科分类号：

071012 ; 0713 ;

摘要：

基于2006年春(5月)、夏(7月)、秋(9月下旬)和冬季(2月)对长江口低盐淡水区水域进行的潮间带鱼类调查结果,分析了鱼类种类及丰度的半月相及其季节变化.结果表明:长江口低盐淡水区水域潮间带鱼类共有53种;其中鲤科鱼类最多,虾虎鱼科次之,其他科较少.2顶网具渔获物的鱼类种类和丰度均以春、夏、秋季较高,冬季最低.各个季节的平均种类数和平均丰度均为小潮期小于大潮期.Shannon-Weaver指数(H′)在一个潮周期内的波动幅度较大,且小潮期H′值略低于大潮期.对鱼类种类丰度进行聚类分析发现,冬季鱼类聚成一组,春、夏和秋季聚成一组.从整年的情况来看,潮间带鱼类的丰度变化与水温的相关性最高;与潮高的相关性次之;而与盐度的相关性最小.

引用

页码：1110 / 1116

页数：7

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