Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy; di cư trong nước ngọt (Ref. 51243). Tropical
Asia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm ? range ? - 20 cm
Max length : 80.0 cm SL con đực/không giới tính; (Ref. 46915)
Các tia vây lưng cứng (tổng cộng) : 2; Các vây lưng mềm (tổng cộng) : 6 - 8; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 33 - 43. Body somewhat elongated with short predorsal length (25.2-29.2% SL); a long caudal peduncle (17.2-21.8% SL); short head length (16.1-20.1% SL); and, short mandibular barbels (length 11.7-42.2% HL). Swim bladder 3-chambered, extending to above anal-fin base (Ref. 46915). Dorsum dark blue to blue-black; 3-4 lowermost principal caudal rays white; vomerine teeth appearing as 2 joined patches in juveniles (Ref. 12693); vomerine teeth united into quadrangular patch, 1.5 times broader than long, not confluent with palatine teeth patch; anal fin base elongate, its length 3.1-3.6 times in SL; dorsal and pectoral fin spines slender; snout blunt (Ref. 43281).
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); Found in lakes and rivers (Ref. 56749). Occurs in estuaries and lower reaches but has also been observed in the upper reaches during the rainy season. Species is omnivorous with a tendency to opportunism (Ref. 46915).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Pouyaud, L., R. Gustiano and G.G. Teugels, 2002. Systematic revision of Pangasius polyuranodon (Siluriformes, Pangasiidae) with description of two new species. Cybium 26(4):243-252. (Ref. 46915)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Các công cụ
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Estimates based on models
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00216 - 0.00967), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
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