Clarence galaxias

The Clarence galaxias (Galaxias johnstoni) is a species of fish in the family Galaxiidae endemic to Tasmania.

Clarence galaxias
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Actinopterygii
Order:
Osmeriformes
Family:
Galaxiidae
Genus:
Galaxias
Species:
G. johnstoni
Binomial name
Galaxias johnstoni
E. O. G. Scott, 1936

Description

The Clarence galaxias is scaleless and has a dark brown back with brown bars and bands extending down its sides, while the belly is a lighter yellow-cream color. Adults reach a body length of 12.5–14 cm and a maximum weight of 20 g.[2][3]

Distribution and habitat

The Clarence galaxias is a freshwater species and inhabits lakes as well as swamps and streams connected to lakes.[3] It is endemic to Tasmania's Derwent River catchment, including the Clarence Lagoon. Only seven breeding populations are currently known.[2]

Conservation

While locally common, the species has been classified as endangered by the IUCN.[1] It is under pressure from predation and competition from introduced brown trout and rainbow trout.[2]

References
  1. Freeman, R. (2019). "Galaxias johnstoni". The IUCN Red List of Threatened Species. IUCN. 2019: e.T8806A129040727.
  2. Jean Jackson; David Crook (2002). "Clarence galaxias - Galaxias johnstoni" (PDF). ASFB Newsletter. Australian Society for Fish Biology. 32 (1).
  3. "Galaxias johnstoni". Fish Base. Retrieved 9 February 2013.


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