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Phoebastria immutabilis, Laysan albatross

Common name (e.g. turtle)

Genus + Species (e.g. Caretta caretta)

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Phoebastria immutabilis   (Rothschild, 1893)

Laysan albatross
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Phoebastria immutabilis

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

Aves | Procellariiformes | Diomedeidae

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

Others.  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean and Western Central Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 81.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 2.9 kg (Ref. 356)

Short description Morphology

Wing: 20.3 cm.

Biology     Glossary (e.g. epibenthic)

Total Length: 79 to 89 cm (Ref. 8812). Total annual breeding population of some 362,000 pairs representing about 1,200,000 to 1,400,000 birds (Ref. 84934). Occurs over open ocean (Refs. 356, 122680). Mainly feeds at night and often far from breeding colony. Forages with conspecifics, but rarely with other species. Seizes prey from the surface while sitting on the water. Scavenges on carrion and follows fishing boats. Diet consists mainly of squid as well as deep-water crustaceans, fish and flyingfish eggs (Ref. 122680).

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

Breeding birds arrive at the islands in the first week of November, egg laying starts late November to early December. Eggs start to hatch in late January to early February, and by the second week of August all birds have fled the island (Ref. 96995).

Main reference References | Coordinator | Collaborators

Lepage, D. 2007. (Ref. 7816)

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

  Near Threatened (NT) (A4bd); Date assessed: 07 August 2018

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Human uses


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Ecology
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Length-weight rel.
Length-length rel.
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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

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=3.4-9.56).
Vulnerability (Ref. 71543): Moderate to high vulnerability (52 of 100).
Price category (Ref. 80766): Unknown.

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