{"id":1102,"date":"2022-04-11T15:16:32","date_gmt":"2022-04-11T13:16:32","guid":{"rendered":"https:\/\/mosj.no\/indikator\/fauna\/marine-fauna\/lomvi\/"},"modified":"2025-11-20T10:55:26","modified_gmt":"2025-11-20T09:55:26","slug":"common-guillemot","status":"publish","type":"bc_indicator","link":"https:\/\/mosj.no\/en\/indikator\/fauna\/marine-fauna\/common-guillemot\/","title":{"rendered":"Common guillemot"},"content":{"rendered":"\n

Last updated 21 May 2025<\/p>\n\n\n\n

The common guillemot (Uria aalge<\/em>) is a dietary specialist that primarily feeds on pelagic fish species such as capelin and herring during the breeding season This makes it a good indicator of changes in fish stocks. The common guillemot population has declined dramatically in the Barents Sea and the northern part of the Norwegian Sea, and the species is listed as Critically Endangered<\/em> (CR) in mainland Norway and Near Threatened<\/em> (NT) on Svalbard in the Norwegian Red List for Species 2021. The common guillemot is now being monitored on Bj\u00f8rn\u00f8ya, where by far the largest breeding colony in Norway and the Barents Sea is found, and on Jan Mayen.<\/p>\n\n\n\n

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Common guillemots breeding at Bj\u00f8rn\u00f8ya, Svalbard. Photo: Malin Kjellstadli Johansen \/ Norwegian Polar Institute<\/figcaption><\/figure>\n<\/div>\n\n\n
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What is being monitored?<\/h2>\n\n\n\n
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Breeding population on Bj\u00f8rn\u00f8ya and Jan Mayen<\/h3>\n\n\n\n
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