Marbled rockcod (Notothenia rossii) fish species and information / pictures of Marbled rockcod - Notothenia rossii

Marbled rockcod (Notothenia rossii) fish species information

Scientific Name
Notothenia rossii

Common Name
Marbled rockcod

Biology
Dorsal spines (total): 4 - 7; Dorsal soft rays (total): 32-36; Anal soft rays: 26 - 30

Classification

Classified By
Richardson, 1844
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Cod icefishes (Nototheniidae)

Distribution

Region
Southern Ocean
Distribution
Southern Ocean: northern end of the Antarctic Peninsula, Scotia Arc, Prince Edward, Crozet, Kerguelen, Heard and Macquarie islands, and Ob' and Lena banks.
Range
45°S - 67°S, 75°W - 165°E

Environment

Climate
Polar
Water Temperature From
Unknown °C
Water Temperature To
- 5 °C
Depth From - meters
5 m
Depth To - meters
350 m
Zone
demersal
Environment
Marine; demersal; oceanodromous (Ref. 51243); depth range 5 - 350 m (Ref. 28106), usually 5 - 350 m (Ref. 28106)
Trophic Level
3.61 s.e. 0.55 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
92.0 cm
Common Length
50.0 cm
Phylogenetic Diversity Index
PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial
Vulnerability
High vulnerability (63 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.10-0.16; tmax=16; Fec=19,000)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated