Coryphaenoides acrolepis (Bean, 1884)

Pacific grenadier

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Gadiformes \| Macrouridae \| Macrourinae
Synonyms	Macrourus acrolepis, Hemimacrurus acrolepis, Nematonurus acrolepis, ... more
Common names	Roughscale rattail, 粗鳞突吻鳕, Pacifisk langhale, ... more

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Image of Coryphaenoides acrolepis (Pacific grenadier)

Picture by Orlov, A.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba. 1990. (Ref. 1371)
Other references | Biblio | Coordinator : Iwamoto, Tomio | Collaborators

Size / Weight / Age

Max length : 104 cm TL male/unsexed; (Ref. 56527); common length : 46.9 cm male/unsexed; (Ref. 56476); max. published weight: 3,000 g (Ref. 56476); max. reported age: 73 years (Ref. 35883)

Environment

Bathydemersal; non-migratory; marine; depth range 300 - 3700 m (Ref. 50550), usually 900 - 1300 m (Ref. 56476)

Climate / Range

Deep-water; 1°C - 4°C (Ref. 1371); 62°N - 28°N, 134°E - 115°W (Ref. 1371)

North Pacific: northern Japan to Okhotsk and Bering seas, south along North American coasts to northern Mexico.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 2; Dorsal soft rays (total): 122; Anal spines: 0; Anal soft rays: 94. Head large, scaled completely except for a narrow ventrolateral strip on snout; eyes also large; snout short, pointed and with tubercular scales along its leading edge; chin with a small chin barbel. Body tapering to a point posteriorly from behind the insertion of the first dorsal-fin spine. Scales adherent, with 3 to 5 divergent rows of coarse spinules. Pyloric caeca 12 to 14. Overall color is gray to grayish-brown in young, turning to dark brown in adults; fins generally dark. Branchiostegal rays: 6-6 (Ref. 36385).

A benthopelagic mid-slope species, that appears to wander off slope bottoms into midwater (Ref. 1371). Adults feed on small fish, euphausiids, prawns, amphipods and cephalopods (Ref. 1371). Oviparous, with planktonic larvae (Ref. 36385).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
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Special reports
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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (K=0.02-0.04; tmax=73)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (79 of 100)	Medium

Entered by Luna, Susan M.

Modified by Orlov, Alexei

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Page last modified by : elaxamana, 15 July 2009

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