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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 Ecologia

; Água doce demersal. Temperate

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

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 7.0 cm SL macho/indeterminado; (Ref. 75601)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Raios dorsais moles (total) : 7 - 9; Raios anais moles: 7 - 11; Vértebras: 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).

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Referência principal Upload your references | Referências | Coordenador : Berra, Tim M. | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Criticamente ameaçada (CR) (B2ab(ii,iii,v)); Date assessed: 05 August 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

Pescarias: sem interesse

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 (0.00205 - 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).

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

Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).

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

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Galaxias macronasus McDowall & Waters, 2003