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Uria aalge, Common murre

Common name (e.g. turtle)

Genus + Species (e.g. Caretta caretta)

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Uria aalge   (Pontoppidan, 1763)

Common murre
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Charadriiformes | Alcidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Others; depth range 0 - 180 m (Ref. 62202).  Temperate; 79°N - 32°N, 127°E - 61°E (Ref. 124582)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northern Pacific, Northern Atlantic and the Arctic.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 43.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 992.50 g (Ref. 356)

Short description Morphology

Culmen: 4.83 cm; tarsus: 3.75 cm; wing: 20.3 cm.

Biology     Glossary (e.g. epibenthic)

Total Length: 40 to 43 cm; Wingspan: 71 cm (Ref. 8812). Inhabits the continental shelf; <100 km (Ref. 356). One of the largest global population of seabirds at >10 million individuals. Slender-billed fit for predominantly fish diet. Feed on sandeels (Ammodytes marinus) and capelins (Mallotus villosus) . Based on stable isotope analysis (SIA) diet study of egg albumin, belongs to lower N signature group (based on ratios of stable isotopes of nitrogen and carbon) indicating a more planktivorous diet early in the breeding season and shifts to a piscivorous diet when raising its chicks in late summer (Ref. 87784). Displays pursuit diving behavior (Ref. 356). Carry prey in their bills back to their colony; adults feed their chicks with regurgitated food; breeding pairs sharing incubation and chick-rearing duties (Ref. 95711). With flexible time-budgets that allow adults more feeding time during lean years. Breed in colonies on cliff sides. Vocal interactions in the colony by way of repeated waves of calling sounds. Fostering recorded with Thick-billed murres (Uria lomvia). Appeasement or fight avoidance posture in incubating birds include turning away and flattening themselves against a cliff. Semi-precocial. Chicks leave nest after attaining 25% of adult body mass. Highly vulnerable to environmental pollution such as PCB pesticide pollution reported on Long Island in the early 1970s and oil pollution from the Exxon Valdez in Prince William Sound, Alaska in 1989, and the Apex Houston oil spill in 1986 off the Californian coast. High levels of selenium reported in eggs and tissues of birds from Puget Sound that is linked to lower survivability and reproductive failure due to kidney and liver damage and congenital deformities. The 1993 ENSO event in the Gulf of Alaska saw mortality in the thousands due to starvation. Globally most widely affected by mortality due to fishing net entrapment recorded in northern Norway, the western Bering Sea, the Farallon Islands, waters off eastern Newfoundland, western Greenland (Ref. 87784).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference References | Coordinator | Collaborators

Barrett, R.T., M. Asheim and V. Bakken. 1997. (Ref. 4085)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 07 August 2018

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Trophic Ecology
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics
Distribution
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Human Related
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References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 0.4 - 11.6, mean 4.9 (based on 1620 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=17.97-33.84).
Vulnerability (Ref. 71543): Low to moderate vulnerability (33 of 100).
Price category (Ref. 80766): Unknown.

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