Roughhead grenadier (Macrourus berglax)

Scientific name: Macrourus berglax Lacep?de, 1801

Roughhead grenadier (Macrourus berglax)

The Roughhead grenadier (Macrourus berglax) is a marine fish of the family Macrouridae.

Biology

Epibenthic, in deep waters down to 2740. 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. Batch spawner.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Macrourus berglax
Family
Macrouridae (Grenadiers or rattails)
Order
Gadiformes (Cods)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
110
Depth range
100–1000 m (328–3281 ft)
Environment
Marine; benthopelagic; non-migratory; depth range 100 - 1000 m, usually 300 - 500 m
Climate
Temperate
Distribution
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.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial
Resilience
Very Low, minimum population doubling time more than 14 years (tm=15; tmax=25; Fec=15,000)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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