Surf bream (Acanthopagrus australis) fish species and information / pictures of Surf bream - Acanthopagrus australis

Surf bream (Acanthopagrus australis) fish species information

Scientific Name
Acanthopagrus australis

Common Name
Surf bream

Biology
Inhabitant estuaries, coastal rivers, creeks, lakes and bays, usually in marine or brackish water, but in dry seasons they penetrate the lowermost reaches of fresh water (Ref. 44894). Common in coastal and estuarine rocky habitat. They enter rivers upstream to the limit of brackish waters. They migrate from their feeding to their spawning grounds; they spawn mainly during winter in the vicinity of river entrances; eggs are planktonic and hatch after 2.5 days. A portion of the population changes sex from male to female after spawning. They feed on mollusks, crustaceans, worms, fish and ascidians.

Classification

Classified By
G?nther, 1859
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Porgies (Sparidae)

Distribution

Region
Southwest Pacific
Distribution
Southwest Pacific: endemic to eastern Australia, from Townsville in Queensland to the Gippsland Lakes in Victoria (Ref. 75154). Occurrence in Japan and Ryukyu Islands (Ref. 559) and Taiwan (Ref. 5193) need verification.
Range
19°S - 38°S

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; brackish; demersal; oceanodromous
Trophic Level
3.1 s.e. 0.40 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
66.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes
Vulnerability
High vulnerability (55 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-4; tmax=12; Fec=300,000)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated