Galaxias tantangara, Stocky Galaxias

Galaxias tantangara Raadik, 2014

Stocky Galaxias
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Image of Galaxias tantangara (Stocky Galaxias)
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drawing shows typical species in Galaxiidae.

Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Galaxiiformes (Southern smelts) > Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335); tantangara: Named fro its type locality, a small alpine stream, a tributary of the upper Murrumbidgee River draining from Mount Tantangara; noun in apposition.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

; eau douce benthopélagique; non migrateur; profondeur 0 - 1 m (Ref. 98815). Subtropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

Oceania: Australia.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 10.3 cm FL mâle / non sexé; (Ref. 98815); poids max. publié: 13.00 g (Ref. 98815)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 8 - 11; Rayons mous anaux: 10 - 12; Vertèbres: 53 - 56. This species is distinguished from its congeners within the Galaxias olidus complex by the following characters: low mean total gill raker count of 10; body stocky and deep through vent and pectoral fin base (12.6-15.6 and 14.9-17.9 % SL); deep caudal peduncle (8.5-10.2 % SL); head obtuse to slightly bulbous in lateral profile and moderately deep (41.4-48.2 % HL) but wide (63.4-72.8 % HL); gape wide (40.2-51.0 % HL and 59.6-72.2 % HW); eye profiles often not visible laterally from ventral view; nostrils are short, not visible from ventral view; caudal fin weakly emarginate to truncate, about as long or slightly longer than caudal peduncle, vertical width of expanded rays usually equal to body depth through the pectoral fin base; caudal peduncle flanges are long, reaching more than half distance to anal fin base; anal fin long (16.3 % SL); most posterior extent of mouth 0.8 eye diameter below ventral margin of eye; dorsal midline is usually flattened anteriorly from above or slightly posterior to pectoral fin bases; no raised lamellae from ventral surface of rays of paired fins; anal fin origin usually under 0.73 distance posteriorly along dorsal fin base; pyloric caeca usually 2, occasionally 1, relatively thin and long (4.7 % SL); gill rakers are short to very short; no distinct black bars along lateral line (Ref. 98815).
Cross section: oval.

Biologie     Glossaire (ex. epibenthic)

Facultative air-breathing in the genus (Ref. 126274); A freshwater fish that is unable to undertake diadromous migrations. Recorded from a small (0.8 m average width and 0.1 m in average depth), cold, clear and fast flowing alpine creek, flowing through an open forest of Eucalyptus, low shrubs and tussock grass, and which is often snow covered during winter. Flow consisted predominantly of riffle and glide, with smaller amounts of cascades. Substrate composed of bedrock, boulder, and cobble, with smaller amounts of pebble and gravel, and sections of silt. Instream cover provided mainly by rock and by bank and vegetation overhang, and pools averaged 0.3 m in depth. Recorded at a density of 1.8 fish/m2 and the only native fish so far recorded from within its range (Ref. 98815).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur : Berra, Tim M. | Collaborateurs

Raadik, T.A., 2014. Fifteen from one: a revision of the Galaxias olidus Günther, 1866 complex (Teleostei, Galaxiidae) in south-eastern Australia recognises three previously described taxa and describes 12 new species. Zootaxa 3898(1):001-198. (Ref. 98815)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Niveau de menace critique (CR) (B1ab(ii,iii,v)+2ab(ii,iii,v)); Date assessed: 13 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Écologie trophique
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Écologie
Écologie
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Outils

E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Capture-MSY |

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimations basées sur des modèles

Indice de diversité phylogénétique (Réf. 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 (Réf. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Résilience (Réf. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref. 59153):  Low vulnerability (10 of 100). 🛈