Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten; brackvatten bentopelagisk; pH range: 6.0 - 7.5; dH range: ? - 25; flodvandrande (Ref. 51243); djupintervall 50 - ? m (Ref. 4833). Tropical; 23°C - 28°C (Ref. 2059); 35°N - 8°N
Asia: large rivers of Indian subcontinent and Myanmar (Ganges, Krishna?, Godavari, Irrawaddy). Widely introduced in its geographical range for aquaculture. Reports from Thailand, Malaysia and Indonesia are based on misidentifications.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 63 - ? cm
Max length : 300 cm SL hane/ej könsbestämd; (Ref. 2686)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 7; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 29 - 32. Eye small, its diameter more than 7 times in head length (in 18 cm long specimens); bright yellow caudal fin in adults; maxillary barbel extends to gill aperture; 23-28 gill rakers on first arch (Ref. 12693).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Facultative air-breathing (Ref. 126274); Found in large rivers and estuaries (Ref. 4833). Occurs in high estuary (freshwater tidal zone) as juveniles, moving to brackish water as sub-adults, and finally as adults to river mouths and inshore areas (Ref. 12693). Longevity given as 10 years (Ref. 2686) but appears too low. Feeds on snails, other mollusks (Ref. 1479) and plants (Ref. 4833). Reared for consumption in Thailand, Cambodia and Vietnam; excellent food fish with very white fine grained sweet flesh (Ref 2686). Marketed fresh (Ref. 12693).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Roberts, T.R. and C. Vidthayanon, 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proc. Acad. Nat. Sci. Philad. 143:97-144. (Ref. 7432)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; sportfisk: ja
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00447 - 0.01861), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.51 se; based on food items.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (K=0.04; tmax=10(?)).
Sårbarhet i fisket (Ref.
59153): Very high vulnerability (90 of 100).
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Näringsämnen (Ref.
124155): Calcium = 9.58 [5.32, 28.00] mg/100g; Iron = 0.355 [0.137, 0.964] mg/100g; Protein = 16 [15, 18] %; Omega3 = 0.194 [0.103, 0.381] g/100g; Selenium = 96.9 [51.0, 226.1] μg/100g; VitaminA = 9.49 [2.55, 35.16] μg/100g; Zinc = 1.58 [0.53, 2.65] mg/100g (wet weight); based on
nutrient studies.