Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Schilbeidae
Etymology: Pareutropius: Greek, par = beside, near + Greek, eu = well + Greek, tropis = keel, in reference to the compressed body of the fish.
Environment / Climate / Range
Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodromous (Ref. 51243). Tropical; 24°C - 27°C (Ref. 1672); 14°N - 4°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm SL male/unsexed; (Ref. 57127)
Morphology | Morphometrics
soft rays: 28 - 36. Diagnosis: pectoral-fin spines denticulate; 28-36 branched anal-fin rays; 5-9 gill rakers on lower limb of first gill arch; only one pair of mandibular barbels; palatine teeth present (Ref. 57127).
Coloration: in live as well as in preserved specimens, head and back brown; dark brown mid-lateral band runs from just behind eye to hind margin of caudal fin; short second lateral band begins above pectoral-fin base and runs obliquely backwards to above anal-fin base; both caudal-fin tips with a dark brown, more or less elongate spot; dorsal fin, pectorals and pelvics unpigmented (Ref. 57127).
Africa: lower Niger (Nigeria), lower Ouémé (Benin) and coastal freshwater lagoons lying between these rivers; also in the Cross River (Nigeria)(Ref. 57127).
Oviparous, eggs are unguarded (Ref. 205). Max. size 81mm total length (Ref. 3570).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205). Lay about 100 eggs.
De Vos, L., 1992. Schilbeidae. p. 432-449. In C. Levêque, D. Paugy, and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres d'Afrique de l'Ouest Tome 2. Faune Tropicale n° 28. Musée Royal de l'Afrique Centrale, Tervuren, and O.R.S.T.O.M., Paris. (Ref. 7351)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00434 - 0.01593), b=3.05 (2.88 - 3.22), based on LWR estimates for species & (Sub)Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Fec=100).
Vulnerability (Ref. 59153
): Low vulnerability (13 of 100) .