期刊
ENVIRONMENTAL POLLUTION
卷 166, 期 -, 页码 144-151出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2012.03.027
关键词
Aquatic invertebrates; Secondary salinization; Mesocosm; Principal Response Curve (PRC); Mediterranean streams; Mining pollution
资金
- CDTI through the CENIT
- U.S. Scholar Fulbright Grant
Salinization is a major and growing threat to freshwater ecosystems, yet its effects on aquatic invertebrates have been poorly described at a community-level. Here we use a controlled experimental setting to evaluate short-term stream community responses to salinization, under conditions designed to replicate the duration (72 h) and intensity (up to 5 mS cm(-1)) of salinity pulses common to Mediterranean rivers subjected to mining pollution during runoff events. There was a significant overall effect, but differences between individual treatments and the control were only significant for the highest salinity treatment. The community response to salinization was characterized by a decline in total invertebrate density, taxon richness and diversity, an increase in invertebrate drift and loss of the most sensitive taxa. The findings indicate that short-term salinity increases have a significant impact on the stream invertebrate community, but concentrations of 5 mS cm(-1) are needed to produce a significant ecological response. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据