Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; non migrateur. Temperate; 36°S - 37°S
Oceania: South Australia (only from Ewens ponds near Mount Gambier) and western Victoria (from a small creek at Winnap, Glenelg River system), Australia (also Ref. 5259).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 6.5 cm SL mâle / non sexé; (Ref. 44894)
Inhabits flowing streams and ponds in clear water, most common in creeks between ponds (Ref. 5259). Occurs in small, swiftly flowing, well-vegetated creeks in clear, cool water (14°-16°C), over gravel or cobbles. Often found around accumulated flood debris and log snags Feeds on aquatic insects and benthic microcrustaceans. Breeds from spring to early summer. First discovered in the early 1980s. Co-occurs with N. australis at Ewen ponds, but generally prefers faster flowing streams rather than ponds (Ref. 44894). Aquarium conditions: pH=7.2, H=8, 22°C water temperature, carnivore, egg layer, peaceful community fish requiring rock and plant cover (Ref. 6398).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menacé (EN) (B2ab(ii,iii)); Date assessed: 12 February 2019
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01047 (0.00402 - 0.02726), b=3.01 (2.79 - 3.23), 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 |
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Generation time |
1.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tmax=4). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (19 of 100). 🛈 |