selectivity of flesh-footed shearwaters for plastic colour: evidence for differential provisioning in adults and fledglings.the ingestion of plastic by seabirds has been used as an indicator of population and ocean health. however, few studies have examined adults and juveniles of the same species concurrent with the availability of plastic in the local marine environment. in king george sound (kgs), western australia, 13% of adult flesh-footed shearwaters (ardenna carneipes) and 90% of fledglings contained plastic items in their digestive tract. on lord howe island (lhi), new south wales, 75% of adult shearwaters an ...201626559149
uncovering the sub-lethal impacts of plastic ingestion by shearwaters using fatty acid analysis.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 o ...201931110767
detection of ultrafine plastics ingested by seabirds using tissue digestion.plastic debris is a major global threat to marine ecosystems and species. however, our knowledge of this issue may be incomplete due to a lack of a standardized method for quantifying ingested ultrafine particles (1 μm - 1 mm) in wildlife. this study provides the first quantification of ultrafine plastic in seabirds using chemical and biological digestion treatments to extract plastic items from seabird gizzards. the alkaline agent, potassium hydroxide, outperformed the enzyme corolase, based on ...201931232326
clinical pathology of plastic ingestion in marine birds and relationships with blood chemistry.pollution of the environment with plastic debris is a significant and rapidly expanding threat to biodiversity due to its abundance, durability, and persistence. current knowledge of the negative effects of debris on wildlife is largely based on consequences that are readily observed, such as entanglement or starvation. many interactions with debris, however, result in less visible and poorly documented sublethal effects, and as a consequence, the true impact of plastic is underestimated. we inv ...201931304735
correlations between per- and polyfluoroalkyl substances (pfass) and body morphometrics in fledgling shearwaters impacted by plastic consumption from a remote pacific island.this study investigated the concentrations of 45 per- and polyfluoroalkyl substances (pfass) in fledgling flesh-footed shearwater (ardenna carneipes; n = 33) and wedge-tailed shearwater (a. pacifica; n = 9) livers via lc-ms/ms and their relationship to body morphometrics and ingested plastic mass recorded in 2019 on lord howe island, nsw, australia. sixteen pfass were detected, of which perfluorooctanesulfonate (pfos) was the dominant compound, detected in 100% of birds (1.34 to 13.4 ng/g ww). l ...202033170512
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