Ingestion of plastic marine debris by Common and Thick-billed Murres in the northwestern Atlantic from 1985 to 2012

• Published in: Marine pollution bulletin 2013-12, Vol.77 (1-2), p.192-195
• Main Authors: Bond, Alexander L., Provencher, Jennifer F., Elliot, Richard D., Ryan, Pierre C., Rowe, Sherrylynn, Jones, Ian L., Robertson, Gregory J., Wilhelm, Sabina I.
• Format: Article
• Language: English
• Subjects: Animal and plant ecology; Animal, plant and microbial ecology; Animals; Applied ecology; Atlantic; Aves; Biological and medical sciences; Charadriiformes - physiology; Common Murre; diet; Eating; Ecotoxicology, biological effects of pollution; Environmental Monitoring; Fundamental and applied biological sciences. Psychology; harvesters; ingestion; Marine and brackish environment; Newfoundland; Newfoundland and Labrador; Plastics - analysis; population; sampling; Sea water ecosystems; seabirds; Synecology; Thick-billed Murre; time series analysis; Uria aalge; Uria lomvia; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution; Waste Products - analysis; Water Pollutants, Chemical - analysis; water pollution
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2013.10.005

•Murres (Uria spp) are harvested off Newfoundland in winter.•We examined plastic ingestion in murres from the 1980s, 1990s, and 2010s.•7% of murres ingested plastic; there were no differences among periods or species.•Mass and number of plastic pieces was highest in the 1980s, and lowest in the 1990s.•Harvested seabirds are useful for plastic studies and link hunters to conservation. Plastic ingestion by seabirds is a growing conservation issue, but there are few time series of plastic ingestion with large sample sizes for which one can assess temporal trends. Common and Thick-billed Murres (Uria aalge and U. lomvia) are pursuit-diving auks that are legally harvested in Newfoundland and Labrador, Canada. Here, we combined previously unpublished data on plastic ingestion (from the 1980s to the 1990s) with contemporary samples (2011–2012) to evaluate changes in murres’ plastic ingestion. Approximately 7% of murres had ingested plastic, with no significant change in the frequency of ingestion among species or periods. The number of pieces of plastic/bird, and mass of plastic/bird were highest in the 1980s, lowest in the late 1990s, and intermediate in contemporary samples. Studying plastic ingestion in harvested seabird populations links harvesters to conservation and health-related issues and is a useful source of large samples for diet and plastic ingestion studies.