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Tylochromis polylepis (Boulenger, 1900)

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Tylochromis polylepis
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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);  polylepis: Named by Boulenger (1900) presumably in reference to the species' numerous small scales and the resultant high lateral line formula (Ref. 52346). Polys= Greek for many, lepis= Latin for scale (Ref. 52307).
More on author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal. Tropical; 3°S - 9°S

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Africa: endemic to Lake Tanganyika (Ref. 5714, 52346). In the Lukuga River (Lake Tanganyika outflow), known up to Niemba (Ref. 93587).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 43.5 cm NG mannelijk / geslacht onbekend; (Ref. 1872)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 14 - 16; Dorsale zachte stralen (totaal) : 13 - 15; Anale stekels: 3; Anale zachte stralen: 7 - 9; Wervels: 30. Diagnosis: high lateral line count (54-59 scales)(Ref. 52346). Scales small (Ref. 53244).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Swamp-dweller (Ref. 6770). Juveniles are coastal and gregarious while adults wander over the sandy bottoms by themselves (Ref. 6770), in shallow inshore areas of the lake, in lagoons and river mouths (Ref. 4967). Feeds mainly on crustaceans and insects, along with some plants (Ref. 52307), but also a mollusc eater (Ref. 6316, 10616). Maternal mouthbrooder (Ref. 1872, 52307) that does not pair bond (Ref. 52307). Females have been observed with about 100 eggs of a diameter of 6 mm (Ref. 52307).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : Kullander, Sven O. | Medewerkers

Lamboj, A., 2004. The Cichlid Fishes of Western Africa. Birgit Schmettkamp Verlag, Bornheim, Germany. 255 p. (Ref. 52307)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: ; Aquarium: Commercieel
FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.00780 - 0.04874), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.0   ±0.44 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).
Prijsklasse (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 135 [67, 236] mg/100g; Iron = 1.63 [0.87, 3.40] mg/100g; Protein = 18.6 [17.1, 20.2] %; Omega3 = 0.354 [0.132, 1.005] g/100g; Selenium = 83.5 [33.6, 188.4] μg/100g; VitaminA = 14.6 [3.8, 46.5] μg/100g; Zinc = 1.43 [0.93, 2.20] mg/100g (wet weight);