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    Temporal trends and interannual variation in plastic ingestion by Flesh-footed Shearwaters (Ardenna carneipes) using different sampling strategies

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    Name:
    Lavers etal FFSH plastic time ...
    Embargo:
    2023-11-26
    Size:
    1.339Mb
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    Authors
    Lavers, Jennifer L
    Hutton, Ian
    Bond, AL cc
    Issue date
    2021-12
    Subject Terms
    body condition
    long-term trends
    marine debris
    monitoring program
    Tasman Sea
    
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    Abstract
    The world's oceans are under increasing pressure from anthropogenic activities, including significant and rapidly increasing inputs of plastic pollution. Seabirds have long been considered sentinels of ocean health, providing data on physical and chemical pollutants in their marine habitats. However, long-term data that can elucidate important patterns and changes in seabird exposure to marine pollutants are relatively limited but are urgently needed to identify and support effective policy measures to reduce plastic waste. Using up to 12 years of data, we examined the benefits and challenges of different approaches to monitoring plastic in seabirds, and the relationship between plastic and body size parameters. We found the mass and number of ingested plastics per bird varied by sample type, with lavage and road-kill birds containing less plastic (9.17-9.33 pieces/bird) than beach-washed or otherwise dead birds (27.62-32.22 pieces/bird). Beached birds therefore provide data for only a particular subset of the population, mostly individuals in poorer body condition, including those severely impacted by plastics. In addition, the mass and number of plastics in beached birds were more variable, therefore the sample sizes required to detect a change in plastic over time were significantly larger than for lavaged birds. The use of lavaged birds is rare in studies of plastic ingestion due to ethical and methodological implications, and we recommend future work on ingested plastics should focus on sampling this group to ensure data are more representative of a population's overall exposure to plastics.
    Citation
    Jennifer L. Lavers, Ian Hutton, Alexander L. Bond, Temporal trends and interannual variation in plastic ingestion by Flesh-footed Shearwaters (Ardenna carneipes) using different sampling strategies, Environmental Pollution, Volume 290, 2021, 118086, ISSN 0269-7491, https://doi.org/10.1016/j.envpol.2021.118086.
    Publisher
    Elsevier BV
    Journal
    Environmental Pollution
    URI
    http://hdl.handle.net/10141/623032
    DOI
    10.1016/j.envpol.2021.118086
    Type
    Journal Article
    Item Description
    Copyright © 2021, The Authors. This document is the author’s final accepted version of the journal article. You are advised to consult the published version if you wish to cite from it.
    ISSN
    0269-7491
    EISSN
    1873-6424
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.envpol.2021.118086
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