Tylochromis robertsi : fisheries

You can sponsor this page

Tylochromis robertsi Stiassny, 1989

Upload your photos and videos
Google image
Image of Tylochromis robertsi
No image available for this species;
drawing shows typical species in Cichlidae.

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);  robertsi: Named for Tyson R. Roberts whose knowledge of the African waterways and their ichthyofauna has been of great value to many studies of the freshwater fishes of Africa (Ref. 52346).

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

Freshwater; benthopelagic. Tropical; 22°C - 25°C (Ref. 2060)

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

Africa: mainstream middle Congo River, Ubangi, Uele, Kotto, Mongala (Ref. 52346), Itimbiri, Aruwimi (Ref. 52346, 106245) and Wagenia Falls (Ref. 106290) (middle Congo River basin) in Democratic Republic of the Congo and Central African Republic. Also a single record from the river Kama-Elila (Lualaba tributary) in Democratic Republic of the Congo (Ref. 52346).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.1 cm SL male/unsexed; (Ref. 52346)

Short description Morphology | Morphometrics

Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 12-15; Anal spines: 3; Anal soft rays: 7 - 8; Vertebrae: 28 - 29. Diagnosis: upper lateral line extending full length of dorsal fin base and descending a row before proceeding length of three or more scales; 14-15 gill-rakers, widely spaced along lower limb of first arch; 36-40 lateral line scales; head length 29.0-35.7% of standard length; usually 29 vertebrae; inferior vertebral apophysis short and oriented caudad rather than of standard Tylochromis type (Ref. 52346).

Biology     Glossary (e.g. epibenthic)

Opportunistic benthic macrophage (Ref. 52346). Mainly feeds on plants and insects (as well as their larvae) (Ref. 52307). Female mouthbrooder (Ref. 52307, 52346) 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

Stiassny, M.L.J., 1989. A taxonomic revision of the African genus Tylochromis (Labroidei, Cichlidae); whith notes on the anatomy and relationships of the group. Ann. Mus. R. Afr. Cent. Ser. 8, Sci. Zool., 258:1-161. (Ref. 52346)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 February 2009

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
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.4   ±0.22 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 (16 of 100).
Price category (Ref. 80766):   Unknown.