Heterobranchus bidorsalis, African catfish : fisheries

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相关物种
- 物种在
  Heterobranchus
- 物种在
  Clariidae
- - 分类 -
- Clariidae
- Siluriformes
- Teleostei
- Chordata
- Animalia

Heterobranchus bidorsalis GeoffroySaint-Hilaire, 1809

African catfish

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No image available for this species;
drawing shows typical species in Clariidae.

Common names from other countries

Poisson-chat africain, Pez-gato africano, 双背鳍异鳃鲶, ... more

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Heterobranchus: Greek, heteros = other + Greek, brangchia = gill (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水居于水底的. 熱帶; 22°C - 28°C (Ref. 12468); 35°N - 4°N

分布国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: Nile (Ref. 3820), Senegal, Gambia, Volta, Niger, Benue rivers and Lake Chad (Ref. 57129).
非洲: 尼羅河。非洲: 查德流域，尼日，佛塔河上游，幾內亞與塞內加爾。也已知來自甘比亞河。 (參考文獻 7357)

大小 / 重量 / 年龄

Maturity: L_m ? range ? - ? cm
Max length : 150 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3820); 最大体重: 30.0 kg (Ref. 3799)

简单描述检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 背的软条 (总数) : 40 - 46; 臀鳍软条: 49 - 58; 脊椎骨: 62 - 63. Diagnosis: length of rayed dorsal fin 37-42% standard length; 40-46 dorsal-fin rays; length of adipose fin 22-27% standard length (Ref. 57129). No serrations on the anterior part of the pectoral spine (Ref. 270, 57129). Head oval-shaped to rectangular dorsally; snout broadly rounded; eyes rather laterally placed; frontal fontanelle long and narrow; occipital fontanelle relatively long and oval shaped; 'postorbital' bones completely united; suprabranchial organ well developed; pectoral spine smooth; openings of secondary sensory canals with regular geometric pattern (Ref. 270). Coloration: preserved specimens: greyish-brown on back and sides, pale brown on belly; some specimens show a marbled colouration, particularly on posterior part of body; caudal fin often with one or more vertical cross-bars (Ref. 57129). Body and fins occasionally with irregularly placed spots (Ref. 270).
头部椭圆形的到矩形的背面; 吻宽广地圆的; 眼相当侧面地放置。额骨囱门长而狭窄的; 后头骨囱门相当长而椭圆形的。眼眶后的' 硬骨完全地联合了。鳃前的器官发展良好的。胸棘平滑的。第二感觉管的开口具有规则的几何学的图案。身体与鳍偶然地有不规则的放置斑点。

Facultative air-breathing (Ref. 126274); Hardly anything is known about the biology of this species (Ref. 78218). Maximum reported size for West Africa: 800 mm TL (Ref. 57129).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

非洲: 尼羅河。非洲: 查德流域，尼日，佛塔河上游，幾內亞與塞內加爾。也已知來自甘比亞河。 (參考文獻 7357)

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Teugels, G.G., B. Denayer and M. Legendre, 1990. A systematic revision of the African catfish genus Heterobranchus Geoffroy-Saint-Hilaire, 1809 (Pisces: Clariidae). Zool. J. Linn. Soc. 98:237-257. (Ref. 270)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)

最不相关 (LC) ; Date assessed: 01 November 2019

CITES (Ref. 131153)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

无害处的

人类利用

渔业: 商业性

FAO(Aquaculture systems: 产生; ; publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00488 - 0.01417), b=2.97 (2.83 - 3.11), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

营养阶层 (Ref. 69278): 3.7 ±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).

价格分类 (Ref. 80766): Unknown.

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