Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce; salmastro pelagico; amfidromo (Ref. 51243). Tropical; 25°C - 30°C (Ref. 1672)
Asia and Oceania: Sri Lanka and India to New Guinea and northern Australia.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ?, range 20 - ? cm
Max length : 40.0 cm SL maschio/sesso non determinato; (Ref. 2847); common length : 25.0 cm TL maschio/sesso non determinato; (Ref. 2847); peso massimo pubblicato: 750.00 g (Ref. 6028)
Spine dorsali (totale) : 5 - 6; Raggi dorsali molli (totale) : 12 - 13; Spine anali: 3; Raggi anali molli: 15 - 17.
Body shape (shape guide): short and / or deep.
Occurs mainly in brackish mangrove estuaries, but also penetrates freshwater rivers and small streams (Ref. 4833, 44894). Inhabits coastal waters (Ref. 45255). Found along the shores of flowing and standing waters. Occurs in shaded areas with overhanging vegetation (Ref. 12693, 44894). Inhabits medium to large-sized rivers (Ref. 12975). Also found in lakes and billabongs (Ref. 44894). Feeds at the surface during the day on floating debris which includes insects and vegetable matter (Ref. 2847). Also consumes crustaceans and small fishes (Ref. 44894). Renowned for its habit of spitting to dislodge its insect prey from tree branches above the water; maximum shooting range is about 150 cm. Breeds from both fresh and brackish water (Ref. 2847, 44894). Breeding takes place in the wet season. Highly fecund female releases buoyant eggs (Ref. 44894). Lays 20,000 to 150,000 eggs, measuring about 0.4 mm in diameter (Ref. 6028). Occasionally caught by anglers and is reasonable eating (Ref. 44894). Sold fresh in markets.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale; Acquario: Commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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=0.01660 (0.00638 - 0.04320), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
4.0 ±0.5 se; based on diet studies. |
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Generation time |
3.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tm=1-2; k=0.31). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Unknown.
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Nutrienti (Ref. 124155) |
Calcium = 112 [57, 241] mg/100g; Iron = 1.24 [0.73, 2.24] mg/100g; Protein = 18.5 [17.4, 19.6] %; Omega3 = 0.241 [0.132, 0.425] g/100g; Selenium = 48.1 [21.6, 100.6] μg/100g; VitaminA = 24.3 [7.1, 81.4] μg/100g; Zinc = 1.04 [0.69, 1.56] mg/100g (wet weight); |