Potential risk to common loons (Gavia immer) from methylmercury exposure in acidified lakes

Potential risk to common loons (Gavia immer) from methylmercury exposure in acidified lakes

Piscivorous birds and mammals in areas remote from point sources of Hg contamination may be exposed to dietary methylmercury concentrations that are sufficiently high to cause reproductive impairment. Common loons (Gavia immer) were observed to show aberrant nesting behavior and low overall reproduc...

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Veröffentlicht in:Hydrobiologia 1994-04, Vol.279-280 (1), p.445-455
Hauptverfasser: Scheuhammer, A. M., Blancher, P. J.
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Freshwater
Gavia immer
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container_title Hydrobiologia
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creator Scheuhammer, A. M.
Blancher, P. J.
description Piscivorous birds and mammals in areas remote from point sources of Hg contamination may be exposed to dietary methylmercury concentrations that are sufficiently high to cause reproductive impairment. Common loons (Gavia immer) were observed to show aberrant nesting behavior and low overall reproductive success when Hg concentrations in prey (small fish and crayfish) average >0.3 mu g/g wet weight (Barr, 1986), levels known to occur in fish from many lakes in central Ontario. We used data on Hg in Ontario fish to estimate the proportion of lakes where fish small enough for loons to eat (
doi_str_mv 10.1007/BF00027876
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identifier ISSN: 0018-8158
ispartof Hydrobiologia, 1994-04, Vol.279-280 (1), p.445-455
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1573-5117
language eng
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source SpringerNature Journals
subjects Freshwater
Gavia immer
title Potential risk to common loons (Gavia immer) from methylmercury exposure in acidified lakes
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