Chrysichthys auratus (Geoffroy Saint-Hilaire, 1809)
Golden Nile catfish
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Siluriformes (Catfishes) > Claroteidae (Claroteid catfishes)
Etymology: Chrysichthys: Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335).
Etymology: Chrysichthys: Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335).
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水; 半咸淡水 居于水底的; 河川洄游 (Ref. 51243). 热带; 26°C - 31°C (Ref. 27935); 36°N - 2°N, 16°W - 34°E (Ref. 7324)
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: known from most of the West African hydrographic basins, except in the coastal areas between Gambia and Liberia, where it is replaced by Chrysichthys maurus (Ref. 7324, 57126). Present from southern Liberia to Cabinda (Angola) (Ref. 57126), and widespread throughout Lower Guinea (Ref. 81642). Also reported from the Chad (Ref. 3236, 57126) and Nile (Ref. 3236, 2988, 28663, 78586) basins.
非洲: 尼罗河与特坎那湖 (?)。 在非洲的西岸上也记录自科特迪瓦与迦纳 (参考文献 272) ，奈及利亚 (参考文献 3799) ，喀麦隆 (参考文献 271) 与毛里塔尼亚 (参考文献 55783) 。
非洲: 尼罗河与特坎那湖 (?)。 在非洲的西岸上也记录自科特迪瓦与迦纳 (参考文献 272) ，奈及利亚 (参考文献 3799) ，喀麦隆 (参考文献 271) 与毛里塔尼亚 (参考文献 55783) 。
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm 11.0, range 8 - 19 cm
Max length : 57.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 41031); 35.0 cm SL (female); 最大体重: 0.00 g
Max length : 57.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 41031); 35.0 cm SL (female); 最大体重: 0.00 g
简单描述 检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 5 - 6; 臀棘: 0. Diagnosis: 1st branched dorsal-fin ray longest, nearly always extended into a long filament that may reach, or even exceed, the base of the caudal fin; in some individuals or populations (Mafou on the upper Niger; rivers Cross, Ogowe, Nyong; Sanaga estuary) this filament is strongly reduced, but the first branched ray remains the longest (Ref. 57126, 81642). In other populations this filament is particularly elongate (Sanaga mainstream and coastal rivers of Cabinda)(Ref. 81642). Usually 8 branched rays in pectoral fins (Ref. 57126, 81642), rarely 7 or 9 (Ref. 57126, 81642), 2nd and 3rd rays sometimes filamentous (Ref. 57126). Exhibits pronounced intraspecific variability, and a clinal series can be demonstrated in the size of the adipose fin and the number of gill rakers (Ref. 81642). Either 9-13 gill rakers on lower limb of first gill arch and base of adipose fin longer than dorsal-fin base (Nilo-Sudanese region = populations from Nile, Chad, Senegal and the upper courses of the Niger, Comoé, Benue and Volta), or 12-15 lower gill rakers and base of adipose fin shorter than, or equal to, dorsal-fin base (coastal zones from Liberia to Cabinda); populations from the middle and lower courses of coastal rivers in this region are more or less intermediate in regard to these characters (Ref. 57126, 81642). Pronounced dimorphism between mature males in reproductive activity and immature males (Ref. 57126, 81642).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
In those parts where Chrysichthys maurus and Chrysichthys auratus overlap (from Liberia to Ghana, to the east of the Volta), C. auratus does not enter rivers, but remains in estuaries and lagoons, where both species are sympatric; in the coastal region, C. auratus has been reported as C. filamentosus (Ref. 57126). Found in lakes and coastal rivers (Ref. 3236) and appears to tolerate a certain amount of salt (Ref. 78218). Occurs usually over soft, slightly muddy substrates or substrates with heavy layers of leafy detritus in deep, relatively quiet waters (Ref. 6868). Feeds on mollusks and small crustaceans (Branchiopods, Copepods, Ostracoda) which it digs from the substrate (Ref. 27935), and also on insects (Ref. 28714) and fish (Ref. 28714, 78218).
出现于湖。 吃软件动物与小型甲壳动物 (鳃足类，桡脚类的动物, 介形亚纲动物) 它挖从底部.(参考文献 27935) 它也吃鱼与昆虫。 (参考文献 28714)
出现于湖。 吃软件动物与小型甲壳动物 (鳃足类，桡脚类的动物, 介形亚纲动物) 它挖从底部.(参考文献 27935) 它也吃鱼与昆虫。 (参考文献 28714)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 尼罗河与特坎那湖 (?)。 在非洲的西岸上也记录自科特迪瓦与迦纳 (参考文献 272) ，奈及利亚 (参考文献 3799) ，喀麦隆 (参考文献 271) 与毛里塔尼亚 (参考文献 55783) 。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Risch, L.M., 2003. Claroteidae. p. 60-96 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57126)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
渔业: 商业性
FAO - Publication: search | FishSource |
更多信息
工具
特别资料
下载 XML
网络资源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: 属, 种 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录
基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01023 (0.00784 - 0.01335), b=2.96 (2.90 - 3.02), in cm total length, based on LWR estimates for this species (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
3.7 ±0.55 se; based on food items. |
| Generation time | 6.9 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (K=0.16; Fec > 1,000). |
|
渔业脆弱性 (Ref. 59153) |
Low to moderate vulnerability (27 of 100). 🛈 |
|
价格分类 (Ref. 80766) |
Unknown. |