Fish mercury levels in relation to characteristics of hydroelectric reservoirs in Newfoundland, Canada

被引：0
作者：
K.J. French
M.R. Anderson
D.A. Scruton
L.J. Ledrew
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来源：
Biogeochemistry | 1998年 / 40卷
关键词：
Canada; fish; hydroelectric reservoirs; mercury; Newfoundland; return time;
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摘要：
Mercury levels in fish have been demonstrated to increase after impoundment with augmented levels of mercury predicted to decline as the reservoir ages. Previous research in Newfoundland predicted return rates in the order of 10 to 12 years for landlocked Atlantic salmon or ouananiche (Salmo salar) and 7 years for brook trout (Salvelinus fontinalis). In order to test the validity of these predictions on a broader spatial and temporal scale, and develop more generally predictive ‘models’, mercury levels in three fish species were studied in 16 older Newfoundland hydroelectric reservoirs of various age (32 to 95 years) and area flooded (21 to 13,000 ha).
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页码：217 / 233
页数：16
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