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Galaxiiformes (Southern smelts) >
Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxiella: Greek, galaxias, ou = a kind of fish, diminutive (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Temperate; 10°C - 30°C (Ref. 86895); 34°S - 35°S
Eastern Indian Ocean: Western Australia (from Augusta to Albany, and three remnant populations - Near Bunbury, Melaleuca Park north of Perth and Lake Chandala north of Muchea).
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 3.7 range ? - ? cm
Max length : 4.4 cm TL mâle / non sexé; (Ref. 6849); 4.8 cm TL (female); common length : 3.0 cm SL mâle / non sexé; (Ref. 5259); âge max. reporté: 1.00 années (Ref. 6849)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 6 - 8; Épines anales: 0; Rayons mous anaux: 8 - 11; Vertèbres: 38 - 43.
Facultative air-breathing in the genus (Ref. 126274); Occur in slow-running, tea-colored streams usually in sandy areas. Also found in swamps, small ponds and roadside ditches. Also lives in the vegetated shallows of some freshwater lakes. Water is typically acidic (pH 4.5-6.5) and darkly tannin-stained. An inhabitant of temporary waters, capable of aestivating in damp bottom sediments over summer. Spawning habits similar to G. munda. Most individuals perish after their first spawning (Ref. 44894). Feed on small insects, larvae of aquatic insects and micro-crustaceans. Breeding is associated with winter rains. Males take on a bright color pattern at the start of the breeding season (Ref. 33842).
Allen, G.R., S.H. Midgley and M. Allen, 2002. Field guide to the freshwater fishes of Australia. Western Australian Museum, Perth, Western Australia. 394 p. (Ref. 44894)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menacé (EN) (B2ab(i,ii,iii,iv,v)); Date assessed: 09 January 2019
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [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).
Niveau trophique (Ref.
69278): 3.0 ±0.00 se; based on food items.
Generation time: 0.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tm=1; tmax=1; assuming Fec<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
