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Long term trends in PBDE concentrations in gannet (Morus bassanus) eggs from two UK colonies

Crosse, John D. and Shore, Richard F. and Jones, Kevin C. and Pereira, M. Glória (2012) Long term trends in PBDE concentrations in gannet (Morus bassanus) eggs from two UK colonies. Environmental Pollution, 161. 93 - 100. ISSN 0269-7491

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Abstract

We used the eggs of an avian sentinel, the Northern gannet (Morus bassanus), to determine long-term (1977–2007) trends in PBDE contamination in Western Atlantic (Ailsa Craig colony) and North Sea (Bass Rock colony) waters around the UK. BDEs 47, 49, 99, 100, 153, 154 were the most abundant and were found in all eggs. Individual congener and ΣPBDE concentrations in eggs from both colonies increased mainly from the late 1980s, peaked in 1994, and then rapidly declined so that concentrations in 2002 were similar to or lower than those in the 1970s and 1980s. The PBDE congener profile and temporal variation in PBDE concentrations suggests that the Penta-BDE technical formula was the main source of PBDE contamination. However, contributions of heavier BDE congeners to ΣPBDE concentrations have increased over time, suggesting other sources are becoming more important. PBDEs had no measurable effect on egg volume or eggshell index.

Item Type: Article
Journal or Publication Title: Environmental Pollution
Additional Information: Mercury in the Laurentian Great Lakes Region
Uncontrolled Keywords: Reproduction
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 53521
Deposited By: ep_importer_pure
Deposited On: 17 Apr 2012 16:58
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:18
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53521

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