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Mackerel icefish (Champsocephalus gunnari) fish species and information / pictures of Mackerel icefish - Champsocephalus gunnari

Mackerel icefish (Champsocephalus gunnari) fish species information

Scientific Name
Champsocephalus gunnari

Common Name
Mackerel icefish

Biology
Feed mainly on krill and mysids. Spawn in autumn and winter (Ref. 50743). Synchronous spawner (Ref. 50743). Utilized as a food fish (Ref. 4931). The Australian Mackerel Icefish fishery of this species has been certified by the Marine Stewardship Council (http://www.msc.org/) as well-managed and sustainable (http://www.msc.org/html/content_1255.htm).

Classification

Classified By

L?nnberg, 1905

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Crocodile icefishes (Channichthyidae)

Distribution

Region

Southern Ocean

Distribution

Southern Ocean: Islands of the Scotia Sea, including the northern part of Antarctic Peninsula; Kerguelen, Heard and Bouvet islands; in the South Atlantic, near the South Georgia. Also in near the South Orkneys and South Shetland islands.

Range

48°S - 66°S

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

700 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; depth range 0 - 700 m

Trophic Level

3.23 s.e. 0.43 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

66.0 cm

Common Length

35.0 cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

Moderate vulnerability (35 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.13-0.39; tmax=13; tm=4; Fec=3,094)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated