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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Eponymy: Dr Fredericus Anna Jentink (1844–1913) was the Director of the Dutch National Museum of Zoology at Leiden. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce; saumâtre benthopélagique. Tropical; 14°N - 4°N
Africa: coastal rivers from Gambia to the Tano River in Ghana (Ref. 52307, 53405).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 27.0 cm SL mâle / non sexé; (Ref. 53405)
Épines dorsales (Total) : 12 - 15; Rayons mous dorsaux (Total) : 13 - 18; Épines anales: 3; Rayons mous anaux: 7 - 10; Vertèbres: 31 - 32. Diagnosis: 3 rows of scales between anterior parts of upper and lower lateral line; lips fleshy; upper edge of lower jaw horizontal when mouth is closed (Ref. 7378, 52307, 52346, 53405). Lower jaw teeth on a distinctly shelf-like elevated processus on dentary in juveniles and mature females (Ref. 7378).
Prefers brackish water but is also found further upstream in rivers (Ref. 3032). Opportunistic benthic macrophage (Ref. 52346). Prefers insects and their larvae; maternal mouthbrooder that does not pair-bond (Ref. 52307).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré, 1988. État des connaissances sur la faune ichtyologique des bassins côtiers de Côte d'Ivoire et de l'ouest du Ghana. Rev. Hydrobiol. Trop. 21(3):221-237. (Ref. 272)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
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=0.01862 (0.01040 - 0.03333), b=3.09 (2.94 - 3.24), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.7 ±0.33 se; based on food items.
Generation time: 1.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (K=0.7).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
