Haplochromis pelagicus

Haplochromis pelagicus Vranken, Van Steenberge, Mbalassa & Snoeks, 2023

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Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335).

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water pelagisch. Tropical

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Africa: Lake Edward system.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 10.2 cm SL mannelijk / geslacht onbekend; (Ref. 128938)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 15 - 16; Dorsale zachte stralen (totaal) : 9 - 11; Anale stekels: 3; Anale zachte stralen: 8 - 9; Wervels: 30 - 32. Diagnosis: Haplochromis pelagicus is a species with a very shallow body, body depth 25.4-30.7% of standard length; long and very shallow caudal peduncle, caudal peduncle length 17.2-20.1% of standard length, caudal peduncle depth 49.4-66.3% of caudal peduncle length; short upper jaw compared to lower jaw, upper jaw length 63.4-71.5% of lower jaw length; mostly inverted-triangular shaped head in anterior view with a very narrow lower jaw, lower jaw width 31.1-36.5% of lower jaw length; posterior 1/4-1/5 of premaxillary dentigerous arm often edentulous; many gill rakers, 14-18 (Ref. 128938). It differs from H. aureus by a shallower body, body depth 25.4-30.7% of standard length vs. 30.7-33.5%; shorter upper jaw, upper jaw length 26.5-29.0% of head length vs. 29.3-35.6%; more gill rakers, 14-18 vs. 12-14; dominant males with iridescent silver vs. yellow snout and cheeks, and hyaline vs. dusky and crimson anal fin (Ref. 128938). It is very similar to H. pappenheimi and differs from it by anal fin hyaline to rarely faint dusky vs. dark-dusky; major cusps of outer oral teeth bluntly vs. acutely pointed, and with a small to large flange vs. with no to a small flange, rarely a large flange; anterior outer oral teeth including rarely some vs. often several tricuspid teeth; dominant males differ further from those of H. pappenheimi by anal and caudal fins hyaline vs. crimson; belly and chest light-coloured vs. belly dark-coloured and chest speckled-black; cheek light-coloured with a very well-defined lacrimal stripe vs. dark-coloured with a well-defined lacrimal stripe; pelvic fin slightly shorter, pelvic fin length of males 23.3-27.0% of standard length vs. 25.2-33.5% (Ref. 128938).


Body shape (shape guide): fusiform / normal.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Abundant in upper water layers of deepwater regions of Lake Edward, occasionally found in upper water layers of sublittoral areas of lakes Edward and George and Kazinga Channel (Ref. 128938). It feeds on copepods and chaoborid larvae, pupae and emerging adults (Ref. 128938).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Kullander, Sven O. | Medewerkers

Vranken, N., M. Van Steenberge, M. Mbalassa and J. Snoeks, 2023. Just below the surface, the pelagic haplochromine cichlids from the Lake Edward system. Hydrobiologia 850:3173-3195. (Ref. 128938)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.01445 (0.00671 - 0.03113), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
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.).
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (15 of 100). 🛈