Long-Term Trends in Intertidal and Subtidal Benthic Communities in Response to Water Quality Improvement Measures

被引:0
|
作者
Paula Chainho
Gilda Silva
Michael F. Lane
José L. Costa
Tadeu Pereira
Carla Azeda
Pedro R. Almeida
Inês Metelo
Maria J. Costa
机构
[1] Faculdade de Ciências da Universidade de Lisboa,Centro de Oceanografia
[2] Old Dominion University,Department of Biological Sciences
[3] Universidade de Évora,Departamento de Biologia, Escola de Ciências e Tecnologia
[4] Câmara Municipal de Lisboa,Direcção Municipal de Ambiente Urbano, Departamento do Ambiente e Espaços Verdes, Divisão de Controlo Ambiental
[5] Faculdade de Ciências da Universidade de Lisboa,Departamento de Biologia Animal
来源
Estuaries and Coasts | 2010年 / 33卷
关键词
Benthic quality assessment; Long-term trends; Spatial and temporal patterns; Tagus estuary; AMBI;
D O I
暂无
中图分类号
学科分类号
摘要
Long-term monitoring studies are needed to understand changes in ecosystem status when restoration measures are implemented. A long-term data series (1996–2007) of the Tagus estuary (Portugal) intertidal and subtidal benthic communities was collected in a degraded area where mitigation measures were implemented. Multivariate analysis was used to analyze spatial and temporal patterns in benthic community composition and trends in five benthic community metrics (i.e., taxonomic richness, density, biomass, Shannon–Wiener diversity and the AMBI index) were also examined. The results revealed a clear separation between intertidal and subtidal assemblages, although they had 50% of taxa in common, including the most abundant. Significant positive trends were found for all metrics showing that both intertidal and subtidal communities responded to the restoration measures implemented. Nevertheless, biotic indices need some adaptation before being universally applied to intertidal and subtidal habitats.
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页码:1314 / 1326
页数:12
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