Mercury in a community of subantarctic seabirds: Chick feather concentrations and influence of foraging habitat and diet
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Using top predators as sentinels of the marine environment, Hg contamination was investigated within the large subantarctic seabird community of the Kerguelen Islands, a remote and poorly known area located in the Southern Indian Ocean. Focusing on chicks (21 species), Hg analysis pointed out large inter-specific variations in body feather Hg concentrations, which ranged from 0.08 ± 0.01 to 5.31 ± 1.12 μg∙g-1 dry mass. Seabirds from Kerguelen thus encompass the whole range of chick feather Hg v...