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> Siluriformes (Catfishes) > Claroteidae (Claroteid catfishes)
Etymology: Chrysichthys:Greek, chrysos = golden + Greek, ichthys = fish (Ref. 45335). Eponymy: Dr Christian Lévêque is a French ichthyologist and hydrobiologist who is Professor Emeritus at IRD (formerly ORSTOM). [...] (Ref. 128868), visit book page.
背面の脊椎 (合計) : 2; 背鰭 (合計) : 6; 肛門の骨: 0. Diagnosis: mouth broad; premaxillary tooth plate broad and unnotched, its width 27.5-33.9% of head length, and 5-7.5 times as broad as long; head not swollen; vomerine tooth plate not interrupted on the vomer (adults); palatine tooth plates poorly developed, confined to one dermo-palatine band, forming a small band (on each side) confluent with the vomerine plate; nasal barbel long, as long as (juveniles) or twice as long as (adults) eye diameter; mandibular barbels stout; 13-14 crenulated gill rakers on lower limb of first arch; chin papillose (Ref. 57126).
Body shape (shape guide): fusiform / normal.
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (B1ab(iii)); Date assessed: 01 January 2020
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00458 - 0.02392), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照 120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref. 59153): Low vulnerability (10 of 100). 🛈
