Macrourus berglax Lacepède, 1801

Onion-eye grenadier

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

Classification	Actinopterygii \| Gadiformes \| Macrouridae \| Macrourinae
Synonyms	Coryphaenoides berglax, Macrurus fabricii, ... more
Common names	Roughhead grenadier, Grenadier berglax, Granadero berglax, ... more

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Image of Macrourus berglax (Onion-eye grenadier)

Picture by Orlov, A.

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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 : 110 cm TL male/unsexed; (Ref. 35388); max. reported age: 25 years (Ref. 1371)

Environment

Benthopelagic; non-migratory; marine; depth range 100 - 1000 m (Ref. 1371), usually 300 - 500 m (Ref. 54573)

Climate / Range

Temperate; 82°N - 37°N, 95°W - 61°E (Ref. 54573)

North Atlantic: Norfolk Canyon and George Bank north to Labrador, Davis Strait, eastern and western Greenland, Iceland, and from the Irish Atlantic slope north to Faeroe Islands, Norwegian coast, to Spitzbergen, and to the Barents Sea.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 0. Snout short, rather strongly pointed; mouth small, inferior. Underside of head almost entirely naked. Pyloric caeca about 19 or 20. Overall color is gray, darker ventrally on trunk; anal fin dark-edged, first dorsal and pectoral fins dusky (Ref. 1371). Front end of dorsal fin spine is serrated (Ref. 35388).

Epibenthic, in deep waters down to 2740 (Ref. 58426). Adults are commonly found in about 300-500 m depth. Temperature preferences appear to range from about 1-4°C, although bottom temperatures below 0°C have been recorded at capture depths. Amphipods predominate in the diet, although polychaetes and various natant crustaceans are also important. Also feed on bivalves, isopods, echinoderms (notably ophiuroids), and ctenophores (Ref. 1371). Batch spawner (Ref. 51846).


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

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (tm=15; tmax=25; Fec=15,000)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High to very high vulnerability (75 of 100)	Medium

Entered by Luna, Susan M.

Modified by Kesner-Reyes, Kathleen

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Page last modified by : elaxamana, 15 July 2009

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