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Brachyramphus marmoratus   (Gmelin, 1789)

marbled murrelet
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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.  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean: California to the Aleutian Islands. Boreal to subtropical.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 25.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 202.50 g (Ref. 356)

Short description Morphology

Culmen: 1.6 cm; tarsus: 1.59 cm; wing: 12.7 cm.

Biology     Glossary (e.g. epibenthic)

An endangered species. Nesting habitat protected under ESA in the U.S. (Ref. 87784). Total Length: 24 to 25 cm (Ref. 8812). Coastal; can be found offshore up to 300 km; thermal fronts, water <30 m deep; glacial-affected. Pursuit divers (Ref. 356). Crepuscular to nocturnal. Mate prospecting thru display and calls; nocturnal vocal displays minimal. Direct or indirect intra- and interspecific competition for nest sites. Nests in trees (Ref. 87784). Breeding pairs maintain isolation from colony until the eggs are laid (Ref. 95051). Feeds on hatchery-released pink salmon and chum salmon in Prince William Sound, Alaska. Population decline associated with mortality in fishing nets (Ref. 87784). Reproductive productivity of the species in Salish Sea declined by at most 50% over the past 150 years (Ref. 95036).

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

Reproductive productivity of the species in Salish Sea declined by at most 50% over the past 150 years (Ref. 95036).

Main reference References | Coordinator | Collaborators

Hirsch, K.V., D.A. Woodby and L.B. Astheimer. 1981. (Ref. 8541)

IUCN Red List Status (Ref. 119314)

  Endangered (EN) (A2bce+3bce+4bce); Date assessed: 07 August 2018

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

| FishSource |


More information

Common names
Egg development
Mass conversion

Internet sources

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

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 5.6 - 13, mean 8.5 (based on 451 cells).
Vulnerability (Ref. 71543)
Low vulnerability (15 of 100)
Price category (Ref. 80766)