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Siluriformes (Catfishes) >
Plotosidae (Eeltail catfishes)
Etymology: Tandanus: A local name, tandan, in Australia.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal; potamodromo (Ref. 51243); rango de profundidad 10 - ? m. Temperate; 5°C - 25°C (Ref. 2060); 12°S - 43°S
Oceania: endemic to Australia.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 45.0  range ? - ? cm
Max length : 90.0 cm TL macho / no sexado; (Ref. 5259); common length : 45.0 cm TL macho / no sexado; (Ref. 5259); peso máximo publicado: 6.8 kg (Ref. 36739); edad máxima reportada: 8 años (Ref. 1107)
Descripción breve
Claves de identificación | Morfología | Morfometría
Head large; thick and fleshy lips; nostrils tubular. First dorsal fin high, with a strong serrated spine and 6 rays. Skin tough and smooth. Body coloration in adults vary from olive-green to brown, black or purplish dorsally and white ventrally. Urogenital papilla triangular in females; longer and cylindrical in males.
Body shape (shape guide): fusiform / normal; Cross section: circular.
Adults inhabit slow moving streams, lakes and ponds with fringing vegetation. They swim close to sand or gravel bottoms. More abundant in lakes than in flowing water (Ref. 44894). Usually solitary but juveniles sometimes form loose aggregations. Mainly bottom-feeders (Ref. 44894). Feed on insect larvae, prawns, crayfish, mollusks, and small fishes. Breeding occurs between spring and mid-summer when water temperatures rise to between 20° and 24°C (Ref. 44894). Utilized for human consumption.
Water temperature (20-24 °C) considered the primary spawning stimulus. There is direct pairing during spawning. Male builds nest (0.6-2.0 m in diameter) and cares for eggs in the nest up to 2 weeks. The nest is made of gravel and rocks with a central sandy depression in which the female deposits up to 20,000 eggs depending on her size (Ref. 5259). Eggs scattered into the rubble are tended and guarded by the male after the female departs (Ref. 205). Hatching occurs in 7-10 days at 18°C (Ref. 240).
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Pesquerías: comercial; pesca deportiva: si; Acuario: Comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00631 (0.00274 - 0.01454), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.3 ±0.48 se; based on food items. |
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Generation time |
11.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (tm=5; K=0.10). |
Vulnerabilidad pesquera (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Unknown.
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