Auklet (Charadriiformes: Alcidae, Aethia spp.) chick meals from the Aleutian Islands, Alaska, have a very low incidence of plastic marine debris |
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| Authors: | Alexander L Bond Ian L Jones G Vernon Byrd |
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| Institution: | a Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada A1B 3X9
b Alaska Maritime National Wildlife Refuge, Homer, AK 99603, USA |
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| Abstract: | The ingestion of plastic marine debris is a chronic problem for some of the world’s seabird species, contributing to reduced chick survival, population declines, and deposition of contaminants via absorption in birds’ gastrointestinal tract. We analysed the frequency of ingested plastic in chick meals delivered by adults in four species of auklet - Crested (Aethia cristatella), Least (A. pusilla), Parakeet (A. psittacula), and Whiskered (A. pygmaea) - from three breeding colonies in the Aleutian Islands, Alaska, USA over a 14-year period from 1993 to 2006. Among 2541 chick meals, we found plastic in only one - from a Whiskered Auklet on Buldir Island in 1993. While adult Parakeet Auklets have a high frequency of plastic ingestion (over 90%), no chick meals contained plastic. Unlike other seabirds, the planktivorous auklets do not appear to offload plastic to their chicks, and we conclude that auklet chicks are probably at a low risk of contamination from plastic debris. |
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| Keywords: | Plastic Marine debris North Pacific Ocean Auklet Aethia Aleutian Islands |
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