Congolli (Pseudaphritis urvillii) fish species and information / pictures of Congolli - Pseudaphritis urvillii

Congolli (Pseudaphritis urvillii) fish species information

Scientific Name
Pseudaphritis urvillii

Common Name
Congolli

Biology
Found in streams and estuaries. Inhabits slow-flowing water around log snags, under over-hanging banks or among leaf litter. Adult fish migrate downstream to spawn in weedy estuaries from late April to August. Feeds on insects, crustaceans, mollusks, worms and fishes. Often buries itself in the substrate to ambush passing prey. A highly efficient osmo-regulator, able to withstand direct transfer from salt to fresh water without any indication of stress. Good eating, but too small to be considered a prime angling target.

Classification

Classified By
Valenciennes, 1832
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Catadromous icefishes (Pseudaphritidae)

Distribution

Region
Oceania
Distribution
Oceania: southeast Australia, including Tasmania.
Range
37°S - 44°S

Environment

Climate
Temperate
Water Temperature From
5 °C
Water Temperature To
20 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Marine; freshwater; brackish; benthopelagic; catadromous
Trophic Level
3.27 s.e. 0.47 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
36.0 cm
Common Length
17.0 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
Aquarium: commercial
Vulnerability
Low to moderate vulnerability (31 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)
Threat To Humans
Harmless
IUCN Red List Status
Not Evaluated