SEASONAL FLUCTUATIONS IN COASTAL BENTHIC INVERTEBRATE ASSEMBLAGES

被引：32

作者：

MAURER, D

LEATHEM, W

KINNER, P

TINSMAN, J

机构：

[1] College of Marine Studies, University of Delaware, Lewes

来源：

ESTUARINE AND COASTAL MARINE SCIENCE | 1979年 / 8卷 / 02期

关键词：

benthic; coastal; Delaware coast; fauna; seasonal; statistical models;

D O I：

10.1016/0302-3524(79)90073-2

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Quantitative benthic invertebrate samples [288] were collected during 4 quarterly sampling cruises at 2 areas off the Delaware coast [USA]. Species composition, species dominance (abundance and frequency of occurrence), density and species evenness were compared. Based on cluster analysis 3 spp.-site groups emerged: a high energy shoal assemblage characterized by a year-round suite of haustoriids and a few bivalves; a mixed hard bottom-sand assemblage that featured marked seasonal dominance of Mytilus edulis with a variety of seasonal epifaunal and infaunal species; and a medium sand assemblage with a variety of seasonal infaunal species. Similar assemblages were recognized off New Jersey and New York [USA]. Seasonal fluctuations in undisturbed coastal ivertebrate assemblages can be so marked that many enviornmental impact studies are inadequate to assess the effects of human activities.

引用

页码：181 / 193

页数：13

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