Classificatie / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); lobatus: Specific name from Latin 'lobatus', lobed; refers to its lobed lips that are often medially enlarged (Ref. 126507).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
Africa: Lake Edward system, only known from Lake Edward (Ref. 126507).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 12.4 cm SL mannelijk / geslacht onbekend; (Ref. 126507)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 15 - 16; Dorsale zachte stralen (totaal) : 8 - 10; Anale stekels: 3; Anale zachte stralen: 6 - 10; Wervels: 29 - 30. Diagnosis: Haplochromis lobatus differs from all species of Haplochromis from the Lake Edward system by a combination of an elongated and slender snout, strongly pro- to isognathous jaws, deep lower jaw with blunt teeth, and lobed lips that are mostly enlarged medially (Ref. 126507). It can be confused with H. labiatus as both have lobed lips, a small gape, a curved upper jaw with a relatively long premaxillary pedicel, 82.4-116.3% of upper jaw length, stout and unicuspid outer teeth that strongly decrease in size laterad, and a lower jaw set anteriorly with procumbently implanted outer teeth, 40-70° to vertical; it differs from this species by a straight to concave vs. straight to convex head, and an elongated and slender vs. blunt and more broad snout; differs further in its trophic morphology: lower jaw slightly longer, 31.2-40.7% of head length vs. 27.7-34.3%, and more slender, 48.5-70.5% of lower jaw length vs. 71.4-92.4%, jaws iso- to strongly prognathous vs. iso- to retrognathous, and anteriormost outer teeth in lower jaw more widely set, 1-2 vs. 0-1 outer tooth widths between adjacent teeth, and with longer major cusps (Ref. 126507). Haplochromis lobatus resembles H. chilotes from Lake Victoria by its very slender and acute snout, lobed lips, and insectivorous diet; it differs by having larger eyes, eye diameter 28.5-34.2% of head length vs. 21.8-28.6%, a correlated shorter snout, 26.9-32.9% of head length vs. 30.8-38.4%, and iso- to strongly prognathous vs. isognathous jaws; it further differs in live colouration; flanks with faint vertical stripes vs. vertical and longitudinal stripes, flanks of dominant males uniformly beige to yellow vs. blueish with orange chest and greenish caudal peduncle, and anal fin of dominant males dusky to black with yellow to orange extensions vs. pale red in H. chilotes (Ref. 126507). Haplochromis lobatus resembles superficially H. paucidens from Lake Kivu by its lobed lips, but clearly differs by its acute vs. blunt snout and more slender lower jaw, 48.5-70.5% of lower jaw length vs; 76.0-90.7% (Ref. 126507).
Diet insectivorous (Ref. 126507).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Vranken, N., M. Van Steenberge, A. Kayenbergh and J. Snoeks, 2020. The lobed-lipped species of Haplochromis (Teleostei, Cichlidae) from Lake Edward, two instead of one. J. Great Lakes Res. 46(5):1079-1089. (Ref. 126507)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
