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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Argyrosomus: Greek, argyros = silvered, silver + Greek, soma = body (Ref. 45335); inodorus: Name from the Latin 'inodorus' meaning without smell (first suspected of being a different species because it lacked the strong brassy/metallic smell that is typical of A. japonicus found in South African waters..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển; Thuộc về nước lợ Sống nổi và đáy; Ở đại duơng, biển (Ref. 51243); Mức độ sâu 1 - 100 m (Ref. 11025). Subtropical; 17°S - 38°S, 11°E - 29°E
Southeast Atlantic: Namibia southwards around the Cape of Good Hope and northwards at least as far as the Kei River in South Africa.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 34.4 range ? - ? cm
Max length : 145 cm TL con đực/không giới tính; (Ref. 11025); common length : 115 cm TL con đực/không giới tính; (Ref. 11025); Khối lượng cực đại được công bố: 36.3 kg (Ref. 11025)
Các tia vây lưng cứng (tổng cộng) : 11; Các vây lưng mềm (tổng cộng) : 25 - 29; Tia cứng vây hậu môn: 2; Tia mềm vây hậu môn: 7 - 8; Động vật có xương sống: 25. Swim bladder carrot-shaped with 31-42 arborescent appendages, the latero-anterior limb of appendages present throughout length of bladder; drumming muscles present only in males; urinary bladders rudimentary; sagitta elongate with pronounced bulge in posterior third of ventral margin; pectoral fin axillary fold naked; peritoneum unpigmented; anterior part of lateral line slightly curved.
Between the Kei River and Cape Agulhas, this species rarely enters estuaries or the surf zone, but becomes more abundant in the surf zone on the west coast of South Africa. Restricted to a depth of 1-20 m in Namibia, apparently due to anoxic conditions beyond this depth. Highly regarded as a table fish. Marketed mostly fresh, but sometimes frozen (Ref. 11025).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Griffiths, M.H. and P.C. Heemstra, 1995. A contribution to the taxonomy of the marine fish genus Argyrosomus (Perciformes: Sciaenidae), with descriptions of two new species from southern Africa. Ichthyol. Bull., J.L.B. Smith Inst. Ichthyol. No. 65, 40 p. (Ref. 11025)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 13.9 - 21.7, mean 16.3 °C (based on 48 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00477 - 0.01384), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.2 ±0.67 se; based on food items.
Thích nghi nhanh (Ref.
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.09-0.12; tm=1.3-2.4).
Prior r = 0.35, 95% CL = 0.23 - 0.52, Based on 2 full stock assessments.
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (68 of 100).
Nutrients (Ref.
124155): Calcium = 23.8 [8.7, 62.9] mg/100g; Iron = 0.459 [0.153, 1.330] mg/100g; Protein = 19.3 [17.3, 21.3] %; Omega3 = 0.299 [0.157, 0.522] g/100g; Selenium = 23.4 [7.6, 89.8] μg/100g; VitaminA = 17.9 [5.6, 58.4] μg/100g; Zinc = 0.592 [0.424, 0.858] mg/100g (wet weight);
