Tasmanian pigmy perch (Nannoperca australis) fish species and information / pictures of Tasmanian pigmy perch - Nannoperca australis

Tasmanian pigmy perch (Nannoperca australis) fish species information

Scientific Name
Nannoperca australis

Common Name
Tasmanian pigmy perch

Biology
Occurs in lotic and lentic freshwater bodies (Ref. 7300). Inhabits vegetated margins of streams, billabongs, drains, dams and swamps in still or gently flowing water. Forms small groups and is a very common prey item for introduced fishes, such as the Redfin perch and trout. Feeds on small crustaceans, insects and their larvae. Breeds from September to January, when water temperatures rise above 16?C. Reproductive habits and biology are typical of the family. Maximum life expectancy is about 5 years (Ref. 44894).

Classification

Classified By
G?nther, 1861
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Temperate perches (Percichthyidae)

Distribution

Region
Oceania
Distribution
Oceania: endemic to Australia.
Range
Unknown

Environment

Climate
Temperate
Water Temperature From
10 °C
Water Temperature To
30 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; benthopelagic
Trophic Level
3.18 s.e. 0.37 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
8.5 cm
Common Length
6.0 cm
Phylogenetic Diversity Index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (24 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=5; Fec=78-679 (batch fecundity))
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated