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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Congolapia: Congolapia is a contraction of the words Congo and Tilapia; all species of Congolapia are only known from the central Congo basin; louna: The species name louna refers to the Louna River, type locality of this species; a noun in apposition (Ref. 92878).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce pélagique. Tropical
Africa: only known from the Louna River (Lefini River affluent, middle Congo River basin) in Republic of Congo (Ref. 92878).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 15.0 cm SL mâle / non sexé; (Ref. 92878)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 16; Rayons mous dorsaux (Total) : 10 - 11; Épines anales: 3; Rayons mous anaux: 8 - 9. Diagnosis: Congolapia louna differs from C. bilineata and C. crassa by having more gill rakers on first ceratobranchial, 13 vs. 8-10 in C. bilineata and 8-11 in C. crassa (Ref. 92878). It further differs from C. bilineata by having two complete scale rows between the upper lateral line and the base of the last dorsal spine and one additional row of very small scales in-between vs. one complete scale row and one additional scale row with smaller dorso-ventrally compressed scales between the upper lateral line and the base of the last dorsal spine; and a longer last dorsal spine, 12.9-15.0% of standard length vs. 9.4-13.2% (Ref. 92878). It further differs from C. crassa by lower body depth with only a minimal overlap, 37.4-42.1% of standard length vs. 40.4-48.4% (Ref. 92878). All scales cycloid; 26-27 scales on horizontal line; 18-21 upper lateral line scales; 9-10 lower lateral line scales (Ref. 92878).
Colour: Background colour light olive-green to greyish, chest and belly whitish; lower half of head whitish to light yellowish, and upper half of head brownish olive; upper and lower lip whitish; iris dark brown (Ref. 92878). Yellowish lachrymal stripe extending from lachrymal to jaw angle; black opercular spot (Ref. 92878). Pectoral fin at base light brownish, pelvic and anal fin greyish; dorsal fin greyish, no 'tilapia spot'; caudal fin greyish (Ref. 92878).
Cross section: compressed.
Collected in fast flowing water over a sandy bottom (Ref. 92878).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Dunz, A.R., E. Vreven and U.K. Schliewen, 2012. Congolapia, a new cichlid genus from the central Congo basin (Perciformes: Cichlidae). Ichthyol. Explor. Freshwat. 23(2):155-179. (Ref. 92878)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00776 (0.00351 - 0.01718), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.2 ±0.5 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (22 of 100). 🛈 |