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Uncovering the sub-lethal impacts of plastic ingestion by shearwaters using fatty acid analysis

Citation

Puskic, PS and Lavers, JL and Adams, LR and Grunenwald, M and Hutton, I and Bond, AL, Uncovering the sub-lethal impacts of plastic ingestion by shearwaters using fatty acid analysis, Conservation Physiology, 7, (1) Article coz017. ISSN 2051-1434 (2019) [Refereed Article]


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Copyright Statement

The Author(s) 2019. Published by Oxford University Press and the Society for Experimental Biology. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. Supplementary data

DOI: doi:10.1093/conphys/coz017

Abstract

Marine plastic pollution is increasing exponentially, impacting an expanding number of taxa each year across all trophic levels. Of all bird groups, seabirds display the highest plastic ingestion rates and are regarded as sentinels of pollution within their foraging regions. The consumption of plastic contributes to sub-lethal impacts (i.e. morbidity, starvation) in a handful of species. Additional data on these sub-lethal effects are needed urgently to better understand the scope and severity of the plastics issue. Here we explore the application of fatty acid (FA) analysis as a novel tool to investigate sub-lethal impacts of plastic ingestion on seabird body condition and health. Using gas chromatography-mass spectrometry, we identified 37 individual FAs within the adipose, breast muscle and liver of flesh-footed (Ardenna carneipes) and short-tailed (Ardenna tenuirostris) shearwaters. We found high amounts of FA 16:0, 18:0, 20:5n3 (eicosapentaenoic acid), 22:6n3 (docosahexaenoic acid) and 18:1n9 in both species; however, the overall FA composition of the two species differed significantly. In flesh-footed shearwaters, high amounts of saturated and mono-unsaturated FAs (needed for fast and slow release energy, respectively) in the adipose and muscle tissues were related to greater bird body mass. While total FAs were not related to the amount of plastic ingested in either species, these data are a valuable contribution to the limited literature on FAs in seabirds. We encourage studies to explore other analytical tools to detect these sub-lethal impacts of plastic.

Item Details

Item Type:Refereed Article
Keywords:marine debris, nutritional composition, plastic pollution, Procellariiform, seabirds
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Conservation and Biodiversity
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
UTAS Author:Puskic, PS (Mr Peter Puskic)
UTAS Author:Lavers, JL (Dr Jennifer Lavers)
UTAS Author:Adams, LR (Dr Louise Adams)
UTAS Author:Grunenwald, M (Dr Martin Grunenwald)
UTAS Author:Bond, AL (Dr Alexander Bond)
ID Code:134668
Year Published:2019
Web of Science® Times Cited:1
Deposited By:Fisheries and Aquaculture
Deposited On:2019-08-27
Last Modified:2019-10-14
Downloads:2 View Download Statistics

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