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> Galaxiiformes (Southern smelts) > Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335); macronasus: A combination of Greek and Latin, from Greek macro (large), and the Latin nasus (nose). This combination is justified on grounds that it produces a euphonious and easily spelled name.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce démersal. Temperate

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Oceania: currently known only from Mackenzie basin of the upper Waitaki River system in South Island, New Zealand.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 7.0 cm SL mâle / non sexé; (Ref. 75601)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 7 - 9; Rayons mous anaux: 7 - 11; Vertèbres: 47 - 51. Distinguished from all other congeners in New Zealand in having only 4-6 pelvic fin rays and only 11-14 principal caudal rays (Galaxias pullus has 14 principal caudal rays, but has 7 pelvic fin rays, and is much more stoutly built; Galaxias cobitinis has only 5 pelvic fin rays, usually has 15 principal caudal fin rays, and has a distinctly protruding lower jaw). This species has distinctly rounded snout when viewed from both dorsal and lateral perspective (Ref. 75601).

Facultative air-breathing in the genus (Ref. 126274); Collected mainly from small gravelly riffles in small streams. This fish appears to be cryptic (Ref. 75601).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Berra, Tim M. | Collaborateurs

McDowall, R.M. and J.M. Waters, 2003. A new species of Galaxias (Teleostei: Galaxiidae) from the Mackenzie Basin, New Zealand. J. Royal Soc. N. Z. 33(3):675-691. (Ref. 75601)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)

Niveau de menace critique (CR) (B2ab(ii,iii,v)); Date assessed: 05 August 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: sans intérêt

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Niveau trophique (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Galaxias macronasus McDowall & Waters, 2003