Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy. Tropical
Oceania: northern Australia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 140 cm SL con đực/không giới tính; (Ref. 44894); common length : 50.0 cm SL con đực/không giới tính; (Ref. 44894)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Tia mềm vây hậu môn: 16 - 19; Động vật có xương sống: 55 - 57. Eye size 12.9-21.8% HL. Because of its similarity to A. paucus, the remaining diagnosis refers to both A. midgleyi and A. paucus: a sleek body; strong jaws; jaws upturned slightly at symphyses, mouth broad; snout truncate in profile; head oblong, its width averaging 66% HL. Supraoccipital process narrow with parallel margins. Numerous fine, sharp teeth on palate in transverse band of four oblong groups. No rakers on posterior aspect of gill arches. Barbels thin and short, rarely reaching beyond pectoral fin base and less than 25% SL (Ref. 40908).
Inhabits in lakes, billabongs, rivers and to a lesser extent brackish estuaries and the tidal portion of rivers. Found in clear or turbid fresh water reservoirs and waterholes. Water is typically warm (23-35°C), with pH between 7.0-8.7 (Ref. 44894). Feeds mainly on fishes, prawns and crayfish. Various arthropods are also consumed. Breeds early in the wet season, sometimes extending into the late wet (November to March). Eggs are incubated orally by the male for 5-6 weeks; brooding males form groups in deeper water. Juveniles grow quickly, attaining 20-30 centimeters by the end of the first year, and sexual maturity is reached after 3 years. An excellent eating fish, rapidly growing in popularity (Ref. 44894).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCN Red List Status (Ref. 130435)
Threat to humans
Traumatogenic (Ref. 58010)
Human uses
Các công cụ
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.1 ±0.61 se; based on food items.
Thích nghi nhanh (Ref.
120179): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
