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

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

Others. Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean and Northwest Atlantic: from the coasts of China, Japan and Russia eastward to continental North America. Tropical to temperate waters.

Length at first maturity / Size / Weight / Age

Maturity: L_m ? range ? - ? cm Max length : 81.0 cm TL male/unsexed; (Ref. 84934); max. published weight: 3.0 kg (Ref. 356)

Short description Morphology

Culmen: 12.7 cm; tarsus: 9.74 cm; wing: 21.3 cm.

Total Length: 68 to 74 cm (Ref. 8812).

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

Breeding starts later in October characterized by the arrival of the birds on the land. Eggs are laid from middle of November to the first week of December, incubation lasts for 66 days and most have hatched by the end of January. At least one parent was observed to guard the chick until mid-March. Parents were observed to circle around mostly at the sea between April and May and return to land only to feed the fledgling. By the end of July most birds were observed to have departed the islands.

Main reference References | Coordinator | Collaborators

Lepage, D. 2007. (Ref. 7816)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Near Threatened (NT) (A3cd); Date assessed: 14 August 2020

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Human uses

| FishSource |

Tools

E-book | Field guide

More information

Trophic Ecology

Food items
Diet
Food consumption
Ration
Predators

Ecology

Ecology
Home ranges

Population dynamics

Growth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle

Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics

Distribution

Countries
FAO areas
Ecosystems
Occurrences
Introductions

Human Related

Aquaculture profile
Stamps, Coins Misc.

Outreach

Collaborators

Taxonomy

Common names
Synonyms
Morphology
Pictures

References

Internet sources

Estimates based on models

Vulnerability (Ref. 71543): Moderate to high vulnerability (52 of 100).

Price category (Ref. 80766): Unknown.

Comments & Corrections

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