Scientific Name
Paranotothenia magellanica

Common Name
Magellanic rockcod

Biology
Dorsal spines (total): 3 - 6; Dorsal soft rays (total): 28-31; Anal soft rays: 22 - 25. Greyish olive above, yellowish below. Pug-nosed snout, well developed supraoccipital crest, highly sculptured cranial bones. Short jaw, the maxillary not reaching the orbit, and adults with pelagic coloration as well as large epurals (Ref. 11892). Upper lateral line with 36-48 tubular scales, total number of scales in upper and middle lateral lines 45-57; caudal peduncle longer than deep, 37.0-45.5% HL; preoperculo-mandibular canal not connected with the temporal canal; dorsal surface of head without prominent ridges; pelvic length much shorter than pectorals (Ref. 37311).

Classification

Classified By

Forster, 1801

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cod icefishes (Nototheniidae)

Distribution

Region

Southern Ocean

Distribution

Southern Ocean: southern tip of South America. Also found in Falkland, South Georgia, South Orkney, South Shetland, Prince Edward, Crozet, Kerguelen, Heard and Macquarie islands, southern New Zealand and associated islands, rarely in the Ross Sea. New Zealand and Argentina (Patagonia) (Ref. 4537)

Range

43°S - 78°S

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

255 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; depth range 0 - 255 m (Ref. 11892), usually 0 - 20 m (Ref. 11892)

Trophic Level

3.36 s.e. 0.47 Based on size and trophs of closest relatives

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

38.0 cm

Common Length

Unknown 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: commercial

Vulnerability

Moderate vulnerability (41 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.26)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated