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Brosme brosme  (Ascanius, 1772)

Cusk
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Image of Brosme brosme (Cusk)
Brosme brosme
Picture by Østergaard, T.


Canada country information

Common names: Brosme, Cusk, Torsk
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: FAO, 1992
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/ca.html
National Fisheries Authority: https://www.ncr.dfo.ca/home_e.htm
Occurrences: Occurrences Point map
Main Ref: Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Gadiformes (Cods) > Lotidae (Hakes and burbots)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

Max length : 120 cm TL male/unsexed; (Ref. 9988); common length : 50.0 cm TL male/unsexed; (Ref. 1371); max. published weight: 30.0 kg (Ref. 9988); max. reported age: 20 years (Ref. 1371)

Length at first maturity
Lm 50.0, range 50 - ? cm

Environment

Marine; demersal; oceanodromous (Ref. 51243); depth range 18 - 1000 m (Ref. 1371), usually 18 - 549 m (Ref. 1371)

Climate / Range

Temperate, preferred 10°C (Ref. 107945); 83°N - 37°N, 75°W - 57°E (Ref. 1371)

Distribution

Northwest Atlantic: New Jersey to the Strait of Belle Isle and on the Grand Banks of Newfoundland. Rare at the southern tip of Greenland. Northeast Atlantic: off Iceland, in the northern North Sea, and along the coast of Scandinavia to the Murmansk Coast and at Spitzbergen.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 93-103; Anal soft rays: 62 - 75; Vertebrae: 64 - 67. Barbel on present on chin, none on snout, its length equal to eye diameter. Color is variable; dorsally dark red-brown or green brown to yellow shading into pale color on belly. Young specimens may have six transverse yellow bands on sides. Vertical fins with dark margin rimmed with white.

Biology     Glossary (e.g. epibenthic)

Found in small shoals on rough, rock, gravel, or pebble bottoms. Generally keeps far from the shore, near the bottom, mostly between 150 and 450 m in the northeastern Atlantic, and between 18 and 550 m in the northwestern Atlantic. Occurs at a temperature range of 0°-10° C (Ref. 9988). Solitary or in small groups. Feeds on crustaceans and shellfishes, benthic fishes (flatfishes and gurnard) and even on starfishes. Preyed upon by seals (Ref. 9988). Sold fresh, frozen as fillets or dried salted. Eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: highly commercial; gamefish: yes

More information

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.9   ±0.3 se; Based on diet studies.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (K=0.08-0.16; tm=8-10; tmax=20; Fec=2 million)

Vulnerability (Ref. 59153)
High vulnerability (63 of 100)
Price category (Ref. 80766)
Low