Diagnostic Description
(
anglais
)
fourni par Fishbase
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).Description: nasal barbels present; very short first dorsal spine; well developed second spine, weakly denticulate along posterior margin; pelvic fin with 1 unbranched and 5 branched soft rays; anal fin with 3-4 unbranched and 6-10 branched soft rays (Ref. 57126). There are important differences among the various populations of this species. One of the most variable characters is the length of dorsal and caudal fins: specimens from rivers usually have a longer dorsal fin than those from lakes and lagoons; adult specimens from the rivers Casamance, Lofa, Moa, St. Paul, St. John, Cess, Cavally, Sassandra and especially Bandama, have a dorsal fin reaching or exceeding (when pressed to body) the adipose fin. The number of gill rakers on the lower limb of first gill arch varies between 12 and 16, but most specimens have 13 or 14; the populations from the rivers Kakrima, Taja, Moa and Waanje have 14 or 15 lower gill rakers and are furthermore characterized by having a long snout (over 40% of head length), this proportion fluctuating between 30 and 40% in most of the other specimens (Ref. 57126). Sexual dimorphism is noticeable between mature specimens in reproductive activity and immature individuals, more pronounced in males than in females and increasing with growth. The width of the premaxillary tooth plate is less than 1/5 of head length in immature adults, but increases up to 1/3 of head length in mature individuals; the mouth width, which in immature specimens is smaller than, or equal to, snout length, increases up to 1.5 times the snout length; the palatine dentition, normally reduced to a few teeth or small bands, increases in adult males forming two long, straight bands; finally, the dorsal fin and spine become proportionally smaller, all fins more rounded, and the head, inflated (Ref. 57126).Coloration: live specimens silvery, with brownish or greenish reflections (Ref. 57126). Preserved individuals: dark brown on head and back, whitish on belly; dorsal and caudal fins frequently finely black-edged; often a black spot behind gill cover; some specimens entirely black (Ref. 57126).
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Migration
(
anglais
)
fourni par Fishbase
Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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- Recorder
- Crispina B. Binohlan
Morphology
(
anglais
)
fourni par Fishbase
Dorsal spines (total): 2; Dorsal soft rays (total): 57; Analspines: 0
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Trophic Strategy
(
anglais
)
fourni par Fishbase
Estuarine speciesof freshwater origin (Ref. 56427). Found in lagoons (Refs. 56427, 121953).
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- Grace Tolentino Pablico
Chrysichthys maurus: Brief Summary
(
catalan ; valencien
)
fourni par wikipedia CA
Chrysichthys maurus és una espècie de peix de la família dels claroteids i de l'ordre dels siluriformes.
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Chrysichthys maurus: Brief Summary
(
espagnol ; castillan
)
fourni par wikipedia ES
Chrysichthys maurus es una especie de peces de la familia Claroteidae en el orden de los Siluriformes.
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Chrysichthys maurus
(
basque
)
fourni par wikipedia EU
(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Chrysichthys maurus: Brief Summary
(
basque
)
fourni par wikipedia EU
Chrysichthys maurus Chrysichthys generoko animalia da. Arrainen barruko Claroteidae familian sailkatzen da.
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摩洛金鱨
(
chinois
)
fourni par wikipedia 中文维基百科
摩洛金鱨: Brief Summary
(
chinois
)
fourni par wikipedia 中文维基百科
摩洛金鱨，為輻鰭魚綱鯰形目脂鱨科的其中一種，為熱帶淡水魚，分布於非洲塞內加爾至迦納淡水流域，體長可達51公分，棲息在底層水域，生活習性不明。
