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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); thereuterion: The name refers to the predatory habits of this small species (Ref. 47153).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
Africa: Lake Victoria.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL mâle / non sexé; (Ref. 47153); 7.6 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 15 - 16; Rayons mous dorsaux (Total) : 8 - 10; Épines anales: 3; Rayons mous anaux: 7 - 10; Vertèbres: 29 - 32. Small, slender, laterally compressed body (Ref. 47153). A rather acutely pointed snout (Ref. 47153). Lips slightly thickened (Ref. 47153). Lower jaw ventral outline almost straight, the rostral outline of lower jaw straight or slightly convex with a smoothly rounded mental area (Ref. 47153). Pectoral fins just reaching the anus; dorsal fin rays slightly longer than those of the anal fin, nearly reaching the caudal fin base (Ref. 47153). All scales on the head are cycloid; scales on rostral part of dorsum cycloid or very weakly ctenoid, caudal part of dorsum with ctenoid scales; scales on flank and caudal peduncle ctenoid; ventral chest scales small and cycloid, lateral chest scales moderately small, weakly ctenoid (Ref. 47153).Live basic color for males is bluish-grey dorsally and silvery white ventrally, sexually active males have a pitch black head and body; females and juveniles have a distinct, relatively thin mid lateral band, but the cheek of the females are slightly more greyish (Ref. 47153). Two continuous longitudinal bands on the body (Ref. 47153).
Haplochromis thereuterion occurs in the upper layers of the water column in Lake Victoria (Ref. 47153).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
van Oijen, M.J.P. and F. Witte, 1996. Taxonomical and ecological description of a species complex of zooplanktivorous cichlids from Lake Victoria. Zool. Verh. Leiden 302:56 p. (Ref. 47153)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
