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