Red steenbras (Petrus rupestris) fish species and information / pictures of Red steenbras - Petrus rupestris

Red steenbras (Petrus rupestris) fish species information

Scientific Name
Petrus rupestris

Common Name
Red steenbras

Biology
Found near rocky banks in coastal waters including estuaries. Adults solitary and territorial. Feeds on octopus, crabs and fish, especially Spondyliosoma. The flesh is highly esteemed, but the liver is poisonous due to high vitamin A content which causes hypervitaminosis. Popular angling fish. Largest of the porgies.

Classification

Classified By
Valenciennes, 1830
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Porgies (Sparidae)

Distribution

Region
Southeast Atlantic
Distribution
Southeast Atlantic: Mossel Bay to Natal in South Africa.
Range
28°S - 34°S

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
10 m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; brackish; demersal; depth range 10 - ? m
Trophic Level
4.5 s.e. 0.61 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
200 cm
Common Length
100.0 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: minor commercial; gamefish: yes
Vulnerability
Very high vulnerability (79 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.08; tm=5-7; tmax=30;)
Threat To Humans
  Poisonous to eat (Ref. 3507)
IUCN Red List Status
  Not Evaluated