Tusk (Brosme brosme) fish species and information / pictures of Tusk - Brosme brosme

Tusk (Brosme brosme) fish species information

Scientific Name
Brosme brosme

Common Name
Tusk

Biology
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. Solitary or in small groups. Feeds on crustaceans and shellfishes, benthic fishes and even on starfishes. Preyed upon by seals. Sold fresh, frozen as fillets or dried salted. Eaten steamed, fried, broiled, boiled, microwaved and baked.

Classification

Classified By

Ascanius, 1772

Class

Ray-finned fishes (Actinopterygii)

Order

Cods (Gadiformes)

Family

Hakes and burbots (Lotidae)

Distribution

Region

Northwest Atlantic

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.

Range

83°N - 37°N, 75°W - 57°E

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

18 m

Depth To - meters

1000 m

Zone

demersal

Environment

Marine; demersal; oceanodromous ; depth range 18 - 1000 m , usually 18 - 549 m

Trophic Level

4 s.e. 0.42 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

120 cm

Common Length

50.0 cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: highly commercial; gamefish: yes

Vulnerability

High vulnerability (63 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated