Fish community responses to metal pollution
Fish community responses to metal pollution
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DOI:
10.1016/j.envpol.2005.03.005
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发表时间:
2005-11-01
影响因子:
8.9
通讯作者:
Blust, R
中科院分区:
文献类型:
--
作者:
Bervoets, L;Knaepkens, G;Blust, R
The effect of metal pollution on fish communities was assessed at 47 sites, including a Cd and Zn gradient. Fish community structure was assessed by applying diversity indices, index of biotic integrity and the abundance/biomass comparison method (ABC-index). To relate the community responses to metal pollution, toxic unit values for dissolved metals (TUw) and for metals in fish liver (TUw) were calculated. If all sites were considered only a good relationship was found between the IBI and the TUw with 56% of the variation in IBI being described. Within the pollution gradient (sites 1-12) the described variation increased up to 85%. Relating the community structure to TUw the described variation in IBI further increased to 87%. Our results indicate that besides water quality other factors influenced diversity and ABC-index. The IBI proved a suitable index for the assessment of metal pollution, provided that other water quality characteristics meet the water quality criteria. (c) 2005 Elsevier Ltd. All rights reserved.