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 / depth range / distribution range
生态学
海洋; 半咸淡水 底中水层性; 海洋洄游的 (Ref. 51243); 深度上下限 ? - 100 m (Ref. 11025), usually 20 - 40 m (Ref. 36731). 热带
Southeast Atlantic: South Africa to Angola.
东南大西洋: 南非至安哥拉。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 200 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36731); 最大体重: 77.0 kg (Ref. 11025)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 11; 背的软条 (总数) : 26 - 30; 臀棘: 2; 臀鳍软条: 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.
泳鳔胡萝卜-形状的与 28-38个树枝状的附肢。 鼓形肌出现在两性; 膀胱大的; 矢耳石典型地 Argyrosomus; 胸鳍腋窝的摺层没有鳞片; 腹膜没有颜色; 侧线的前部些微地弯曲。
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).
出现于河口，海浪区与进一步的外海。 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 捕获中变得更丰富的,指出它的对较热的水域的偏爱。 鱼超过 13,000 g 被发现是不成熟的。 成鱼是发现于很少的那米比亚但是据说在安哥拉南部很丰富, 在哪里哪里的缺乏永久的河口显示出这一个栖地类型不会在这种的生活历史中扮演重要角色.(参考文献 11025)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
东南大西洋: 南非至安哥拉。
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)
人类利用
渔业: 低经济; 游钓鱼种: 是的
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特别资料
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00278 - 0.01190), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.4 ±0.7 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
