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Galaxias auratus, Golden Galaxias
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Golden Galaxias
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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 - 28°C (Ref.
2060
)
Oceania: known only from Central Plateau of Tasmania in Lake Sorell, Lake Crescent, a tributary of Lake Crescent at Interlaken, and Clyde River, which is the outflow of Lake Crescent.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 8 - ? cm
Max length : 24.0 cm SL male/unsexed; (Ref.
44894
); common length : 15.0 cm SL male/unsexed; (Ref.
5259
)
Facultative air-breathing in the genus (Ref.
126274
); Lives in rocky areas and vegetated margins of lakes and streams (Ref.
5259
), primarily in lakes preferring still or gently flowing waters (Ref.
51290
,
44894
). Adults prefer the shelter provided by complex habitats such as rocky lake shores and also in-lake macrophytes beds and marsh habitats (Ref.
51290
). Juveniles occur in the water column until 4-5 months of age (40 mm in length) and then move inshore seeking shelter and larger prey items (Ref.
51290
). Shoaling in open water when young (Ref.
44894
). Feeds on insects, insect larvae and crustaceans (Ref.
5259
,
44894
) and mollusks with cannibalism of eggs and juvenile fish being common (Ref.
51290
,
44894
). Breeds in early spring among rocks in the shallows (Ref.
44894
). Most fish live for 3-4 years with some reaching over 6 years of age (Ref.
51290
).
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
)
Endangered (EN)
(B1ab(iii)+2ab(iii)); Date assessed:
11 February 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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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 (0.00205 - 0.01170), 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
): 3.3 ±0.44 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1-2).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (19 of 100).
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- 20 July 2016
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