期刊
MARINE POLLUTION BULLETIN
卷 107, 期 1, 页码 136-143出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.04.008
关键词
Multiple stressors; Copper; Freshwater; Marine assemblage; Biodiversity; Ecosystem functioning
资金
- Higher Education Authority (HEA) through the Programme for Research at Third Level Institutions, Cycle 5 (PRTLI-5)
- European Regional Development Fund (ERDF)
Increased levels of anthropogenic stressors in the marine environment are leading to complex changes in its diversity and functioning. Many marine ecosystems are exposed simultaneously to multiple stressors, and their combined effects are difficult to predict. Climate change will intensify the input of terrestrial pollutants and increase the flow of water to coastal systems through increased precipitation. Subtidal assemblages were subjected to factorial combinations of copper and freshwater to test effects on their structure and on ecosystem processes. Assemblages were also subjected to seawater to separate the intended effects of water flow and salinity. For the first three months, no effects of copper or freshwater were found. After three months, copper significantly reduced the taxon richness and the percentage cover of taxa, and reduced the rate of community respiration and gross primary production. The flow of water also reduced community respiration, regardless of whether the water was fresh or saline. (C) 2016 Elsevier Ltd. All rights reserved.
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