Haplochromis sphex

Haplochromis sphex ter Huurne & Witte, 2010

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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)sphex: From the Greek 'σϕήξ', wasp, referring to the colouration of males; like the wasp, males of this species are typically yellow with black stripes (Ref. 85523).

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water benthopelagisch; diepte ? - 10 m (Ref. 85523). Tropical

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Africa: Lake Victoria (Ref. 85523).

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 8.2 cm SL mannelijk / geslacht onbekend; (Ref. 85523)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Wervels: 29 - 31. Diagnosis: Haplochromis sphex is a small sized (less than 9 cm standard length), slender (body depth less than 32% of standard length) micrognathic species, with mainly bicuspid teeth in the oral jaws; dorsal head profile straight to moderately curved (Ref. 85523). The colouration of the sexually active males is yellow with blackish longitudinal, interrupted bands and vertical bars, producing a so-called 'chess board pattern'; this pattern also occurs in several oral shelling molluscivores, insectivores and algae scrapers, but these species generally are larger, have a deeper body, have a strongly curved dorsal head profile and a lower jaw length/width ratio of less than 1.5, whereas in Haplochromis sphex it ranges from 1.5 to 2.7 (Ref. 85523). It differs from other small species with a 'chess board pattern', H. bwathondii and H. sauvagei, by its shallower body; sexually active males of H. sauvagei generally have a more distinct 'chess board pattern' than H. sphex; in contrast to H. sphex, sexually active males of both H. bwathondii and H. sauvagei develop a red chest and belly; the colouration of females and quiescent males of H. sauvagei is rather similar to that of sexually active males of H. sphex (Ref. 85523).
Body shape (shape guide): fusiform / normal.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found in waters up to a depth of 10 m both over sand and mud (Ref. 85523). It fed mainly on phytoplankton (Cyanophyta and Aulacoseira) and occasionally on copepods (Ref. 85523). This species is a female mouth brooder (Ref. 85523).

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

This species is a female mouth brooder (Ref. 85523).

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

de Zeeuw, M.P., M. Mietes, P. Niemantsverdriet, S. ter Huurne and F. Witte, 2010. Seven new species of detritivorous and phytoplanktivorous haplochromines from Lake Victoria. Zool. Meded. Leiden 84:201-250. (Ref. 85523)

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

  Ernstig bedreigd (CR) (C2a(ii)); Date assessed: 31 March 2010

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)
3.3   ±0.4 se; based on size and trophs of closest relatives
Kwetsbaarheid van de visserij
(Ref. 59153)
Low vulnerability (12 of 100). 🛈