>
Osmeriformes (Freshwater smelts) >
Retropinnidae (New Zealand smelts) > Prototroctinae
Etymology: Prototroctes: Greek, pro = first, in front of + Greek, troktos, -e, -on = edible (Ref. 45335).
More on author: Günther.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas; Água doce; estuarina demersal; anfídromo (Ref. 46888). Temperate; 10°C - 25°C (Ref. 2060); 34°S - 45°S
Oceania: coastal drainages of southeastern Australia from the Grose River near Sydney southward and westward to the eastern part of South Australia, including Tasmania and King Island in Bass Strait.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 33.0 cm TL macho/indeterminado; (Ref. 5259); common length : 18.0 cm TL macho/indeterminado; (Ref. 5259); idade máx. registrada: 6 anos (Ref. 5259)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Adults inhabit creeks and rivers, usually in cool, clear waters over gravel bottoms in sections alternating between pools and rapids. Usually found in clear, moderate to fast-flowing water in the upper reaches of rivers (sometimes to altitudes above 1000 meters). Often forming aggregations below barriers to upstream movement. Timid species that forms fast-moving shoals (Ref. 44894). Often form large schools especially prior to spawning. Feed on small crustaceans, insects and their larvae and algae. The intestinal tract is long, s specialization to assist in the breakdown of ingested plant material (Ref. 44894). Spawn: Feb.-May; 25,000-68,000 eggs which sink to bottom downstream of spawning site. Hatching: 10-20 days; larvae, 6-7 mm TL, swept downstream to estuaries and the sea, return to freshwater after 6 months.
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais; peixe esportivo: sim
Ferramentas
Relatórios especiais
Baixar XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.7656 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00372 (0.00149 - 0.00929), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nível Trófico (Ref. 69278) |
2.8 ±0.34 se; based on food items. |
Resiliência (Ref. 120179) |
Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.45; tmax=6; Fec=25,000). |
Vulnerabilidade da pesca (Ref. 59153) |
Low to moderate vulnerability (29 of 100). 🛈 |
Categoria de preço (Ref. 80766) |
Unknown.
|