Teleostei (teleosts) >
Galaxiiformes (Southern smelts) >
Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Temperate; 10°C - 26°C (Ref. 2060); 43°S - 44°S
Oceania: known only from Arthurs Lake and Woods Lake on the high central plateau of Tasmania, Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.5 cm SL male/unsexed; (Ref. 44894); common length : 8.0 cm SL male/unsexed; (Ref. 5259)
Facultative air-breathing in the genus (Ref. 126274); Occurs in rocky lake shore, particularly around man-made groynes or jetties. Found among aquatic plant meadows near the shore. Larvae and juveniles inhabit open water on lakes. Adults feed on insects and crustaceans, pelagic juveniles probably feed on zooplankton. Breeding is opportunistic (occurring at any time of the year), with a peak possibly occurring late in spring (Ref. 44894).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00206 - 0.01165), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).