Teleostei >
Eupercaria/misc (Various families in series Eupercaria)
鱸形目 (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
石首魚科 (Drums or croakers)
Etymology: Argyrosomus: Greek, argyros = silvered, silver + Greek, soma = body (Ref. 45335); coronus: Named for Corana Griffiths, wife of the first author; noun in apposition.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
海洋; 半鹹淡水 底中水層性; 海洋洄游的 (Ref. 51243); 深度上下限 ? - 100 m (Ref. 11025), usually 20 - 40 m (Ref. 36731). 熱帶
Southeast Atlantic: South Africa to Angola.
東南大西洋: 安哥拉與那米比亞。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 200 cm TL 雄魚/尚未辨別雌雄; (Ref. 36731); 最大體重: 77.0 kg (Ref. 11025)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 11; 背的軟條 (總數) : 26 - 30; 臀棘: 2; 臀鰭軟條: 7; 脊椎骨: 25. Swim bladder carrot-shaped with 28-38 arborescent appendages. Drumming muscles present in both sexes; urinary bladders large; sagitta typically Argyrosomus; pectoral fin axillary fold without scales; peritoneum unpigmented; anterior part of lateral line slightly curved.
泳鰾胡蘿蔔-形狀的與 28-38個樹枝狀的附肢。 鼓形肌出現在兩性; 膀胱大的; 矢耳石典型地 Argyrosomus; 胸鰭腋窩的摺層沒有鱗片; 腹膜沒有顏色; 側線的前部些微地彎曲。
Occurs in estuaries, the surf zone and further offshore. In southern Angola, it is caught mainly in depths of 20-40 m. Becomes more abundant in Argyrosomus catches going northwards, indicating its preference for warmer waters. Fish up to 13,000 g were found to be immature. Adults are rarely found in Namibia but are said to be abundant in southern Angola, where the lack of permanent estuaries there suggests that this habitat type does not play an important role in the life history of this species (Ref. 11025).
出現於河口，海浪區與進一步的外海。 在安哥拉南部，它被捕捉主要在深度 20-40 公尺。 在去北方的 Argyrosomus 捕獲中變得更豐富的,指出它的對較熱的水域的偏愛。 魚超過 13,000 g 被發現是不成熟的。 成魚是發現於很少的那米比亞但是據說在安哥拉南部很豐富, 在哪裡那裡的缺乏永久的河口顯示出這一個棲地類型不會在這種的生活歷史中扮演重要角色.(參考文獻 11025)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東南大西洋: 安哥拉與那米比亞。
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 瀕危狀態 (Ref. 130435: Version 2025-1)
人類使用
漁業: 低經濟; 游釣魚種: 是的
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00280 - 0.01185), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 4.4 ±0.7 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 非常低的, 最小族群倍增時間超過14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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