Knife-back seabream (Polyamblyodon gibbosum) fish species and information / pictures of Knife-back seabream - Polyamblyodon gibbosum

Knife-back seabream (Polyamblyodon gibbosum) fish species information

Scientific Name
Polyamblyodon gibbosum

Common Name
Knife-back seabream

Biology
Dorsal spines (total): 11; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 10 - 11. Grey-blue in color.

Classification

Classified By
Pellegrin, 1914
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Porgies (Sparidae)

Distribution

Region
Western Indian Ocean
Distribution
Western Indian Ocean: Beira, Mozambique to Natal, South Africa and Madagascar.
Range
Unknown

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
reef-associated
Environment
Marine; reef-associated
Trophic Level
3.55 s.e. 0.50 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
60.0 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: subsistence fisheries
Vulnerability
High vulnerability (57 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated