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Tylochromis polylepis (Boulenger, 1900)

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Tylochromis polylepis
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Boulenger.

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

Freshwater; demersal. Tropical; 3°S - 9°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 43.5 cm NG male/unsexed; (Ref. 1872)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 13 - 15; Anal spines: 3; Anal soft rays: 7 - 9; Vertebrae: 30. Diagnosis: high lateral line count (54-59 scales)(Ref. 52346). Scales small (Ref. 53244).

Biology     Glossary (e.g. 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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

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

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
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Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
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BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
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Nutrients
Oxygen consumption
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Visual pigments
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Toxicity (LC50s)
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Genetics
Heterozygosity
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Aquaculture profiles
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Stamps, coins, misc.
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Taxonomy
Common names
Synonyms
Morphology
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References
References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00751 - 0.04407), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.44 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).
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);