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Siluriformes (Catfishes) >
Pangasiidae (Shark catfishes)
Etymology: Helicophagus: Greek, helike = spiral + Greek, phagein = to eat (Ref. 45335).
Eponymy: Jan Theodore van Bloemen Waanders (1820–1889) was a Captain, then Lieutenant-Colonel, of the Artillery, East Sumatra and an amateur naturalist. He was the son of Hendrik Lodewijk van Bloemen Waanders (above). He collected the types. (Ref. 128868), visit book page.
More on author: Bleeker.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande; flodvandrande (Ref. 51243). Tropical
Asia: Mekong and Chao Phraya basins; also from Sumatra, Indonesia.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 70.0 cm TL hane/ej könsbestämd; (Ref. 37771)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 7; Mjukstrålar i analfenan: 37 - 40.
Body shape (shape guide): elongated.
Occurs in medium to large-sized rivers (Ref. 12975). The stomachs of the specimens examined were more or less filled with mollusks, usually bivalves (Ref. 7432). Enters flooded forest (Ref. 9497). Migrates upstream when water levels begin to rise at the beginning of the flood season and moves downstream as water clears at the end of the flood season. 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
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00180 - 0.00556), b=3.12 (2.96 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.44 se; based on food items.
Sårbarhet i fisket (Ref.
59153): Moderate to high vulnerability (48 of 100).
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Näringsämnen (Ref.
124155): Calcium = 83.9 [38.5, 178.7] mg/100g; Iron = 1.11 [0.53, 2.01] mg/100g; Protein = 16.3 [14.7, 17.9] %; Omega3 = 0.282 [0.118, 0.666] g/100g; Selenium = 100 [46, 242] μg/100g; VitaminA = 22.3 [7.0, 60.9] μg/100g; Zinc = 1.36 [0.92, 2.02] mg/100g (wet weight);