Pedder galaxias (Galaxias pedderensis) fish species and information / pictures of Pedder galaxias - Galaxias pedderensis

Pedder galaxias (Galaxias pedderensis) fish species information

Scientific Name
Galaxias pedderensis

Common Name
Pedder galaxias

Biology
Lives in rocky lake margins and occurs to a lesser extent around submerged vegetation and log snags. Usually around rocks and boulders on lake margins in darkly tannin-stained water. Juveniles shoal in open water near lake margins. Spring spawning occurs in small feeder streams. Eggs are deposited in sheltered positions among vegetation, rocks or woody debris and take about 3-4 weeks to hatch. Sexual maturity is reached after the second year but most fish breed in their third or fourth year (Ref. 44894). Feeds on crustaceans and insect larvae. Spawning probably occurs in spring as juveniles are numerous during summer months.

Classification

Classified By
Frankenberg, 1968
Class
Ray-finned fishes (Actinopterygii)
Order
Smelts (Osmeriformes)
Family
Galaxiids (Galaxiidae)

Distribution

Region
Oceania
Distribution
Oceania: known only from Lake Pedder and Lake Gordon in southern Tasmania, Australia.
Range
44°S - 45°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
benthopelagic
Environment
Freshwater; benthopelagic
Trophic Level
3.35 s.e. 0.45 Based on food items.
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
16.0 cm
Common Length
8.0 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
Unknown
Vulnerability
Low vulnerability (23 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Fec=200-1,200)
Threat To Humans
  Harmless
IUCN Red List Status
  Critically Endangered (CR) (A1ac+2c, B1+2abcde)