Journal
ENVIRONMENTAL POLLUTION
Volume 205, Issue -, Pages 365-377Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.06.022
Keywords
Trace element; Blood; Seabird; Australia; Bioindicator
Categories
Funding
- Victoria University
- Holsworth Wildlife Research Endowment
- Port Phillip EcoCentre
- Phillip Island Nature Parks
- Birds Australia
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Monitoring trace metal and metalloid concentrations in marine animals is important for their conservation and could also reliably reflect pollution levels in their marine ecosystems. Concentrations vary across tissue types, with implications for reliable monitoring. We sampled blood and moulted feathers of the Little Penguin (Eudyptula minor) from three distinct colonies, which are subject to varying levels of anthropogenic impact. Non-essential trace metal and metalloid concentrations in Little Penguins were clearly linked to the level of industrialisation adjacent to the respective foraging zones. This trend was more distinct in blood than in moulted feathers, although we found a clear correlation between blood and feathers for mercury, lead and iron. This study represents the first reported examination of trace metals and metalloids in the blood of any penguin species and demonstrates that this high trophic feeder is an effective bioindicator of coastal pollution. (C) 2015 Elsevier Ltd. All rights reserved.
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