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First record of plastic debris in the stomach of a hooded seal pup from the Greenland Sea

Colloid & Polymer Science 2021 26 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Marianna Pinzone, Erling S. Nordøy, Gauthier Eppe, Cédric Malherbe, Krishna Das, France Collard

Summary

This study examined macroplastic ingestion in harp and hooded seals collected from pack ice breeding grounds in the Greenland Sea. Two pieces of single-use plastic were found in the stomach of a weaned hooded seal pup, representing the first recorded instance of macroplastic ingestion in an Arctic true seal and highlighting risks to young marine predators in remote polar environments.

Body Systems

Plastic debris is globally found around the world and the remote Arctic is no exception. Arctic true seals are sentinel species of marine pollution and represent the link between marine food webs and Arctic apex predators like polar bears and humans. With regard to true seals, ingested macroplastics have never been reported in an Arctic species. We harvested 10 harp seals Pagophilus groenlandicus and 8 hooded seals Cystophora cristata from the breeding grounds in the pack ice of the Greenland Sea. The digestive tract was inspected exclusively for the presence of macroplastics (>5 mm). Two pieces of single-use plastic were found in the stomach of a weaned hooded seal pup. This study indicates that young Arctic marine predators may ingest macroplastics, and therefore may be at risk during their early stages of life due to human caused plastic pollution even in the remote Arctic pack ice.

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