分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Claroteidae (Claroteid catfishes) > Claroteinae
Etymology: Chrysichthys: Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335).
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水; 半鹹淡水 居於水底的; 河川洄游 (Ref. 51243). ; 16°N - 4°N, 18°W - 0°E
Africa: in most coastal rivers from the Senegal to the Pra in Ghana (Ref. 7324, 57126), including rivers of Côte d'Ivoire (Ref. 272), Gambia, Guinea, Guinea-Bissau, Sierra Leone and Liberia (Ref. 13331).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 14.0 range ? - ? cm
Max length : 51.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57126)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 5 - 7; 臀棘: 0. Diagnosis: second or third branched dorsal-fin ray longest (except in juveniles in which the first is the longest), but never filamentous; adipose fin small, its base shorter than or equal to dorsal-fin base; high number of branched pectoral-fin rays (usually 9, rarely 8); 12-16 (most often 13 or 14) stout and crenulate gill rakers on lower limb of first gill arch; there are important differences among the various populations of this species, and sexual dimorphism is noticeable between mature specimens in reproductive activity and immature individuals, more pronounced in males than in females and increasing with growth (Ref. 57126).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00439 - 0.01251), b=2.90 (2.76 - 3.04), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.7 ±0.35 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (45 of 100).
Nutrients (Ref.
124155): Calcium = 120 [71, 225] mg/100g; Iron = 1.39 [0.84, 2.30] mg/100g; Protein = 16.4 [15.4, 17.5] %; Omega3 = 0.254 [0.106, 0.603] g/100g; Selenium = 78.8 [36.0, 189.1] μg/100g; VitaminA = 26.7 [10.3, 63.9] μg/100g; Zinc = 1.73 [1.21, 2.46] mg/100g (wet weight);
