Tylochromis leonensis : fisheries

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Tylochromis leonensis Stiassny, 1989

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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);  leonensis: Named in reference to the country in which specimens of the species were first identified (Ref. 52346).

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

Freshwater; benthopelagic. Tropical; 24°C - 26°C (Ref. 12468); 10°N - 4°N

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

Africa: coastal rivers from the Kogon (Guinea) to the Bia (Sierra Leone) (Ref. 53405).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.9 cm SL male/unsexed; (Ref. 53405)

Short description Morphology | Morphometrics

Dorsal spines (total): 13 - 15; Dorsal soft rays (total): 13-16; Anal spines: 3; Anal soft rays: 7; Vertebrae: 28. Diagnosis: 2 scale rows between upper lateral line and anterior part of lower lateral line (Ref. 52346, 53405). High lateral line count (38-42); low gill raker count (13-15 along lower limb of first arch); lower pharyngeal jaw with a short, deep keel that is deeply indented along the ventral margin (Ref. 52346).

Biology     Glossary (e.g. epibenthic)

Appears to be an exclusively Upper Guinean Province species (Ref. 52346). Inhabits large sandbanks and hardly ever penetrates into small streams (Ref. 53407). Benthic macrophage (Ref. 52346). Feeds primarily upon insects and their larvae, but also accepts plants (Ref. 52307). Oviphilous (Ref. 53407), maternal mouthbrooder that does not pair bond (Ref. 52307).

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

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

Teugels, G.G. and D.F.E. Thys van den Audenaerde, 2003. Cichlidae. p. 521-600. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 2. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 815p. (Ref. 53405)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 10 January 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries:
FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
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Heritability
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Processing
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Mass conversion
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Pictures
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Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
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Tools

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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 | Zoobank | 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=0.01698 (0.00851 - 0.03387), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.6   ±0.26 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 (17 of 100).
Price category (Ref. 80766):   Unknown.