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Tylochromis sudanensis Daget, 1954

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drawing shows typical species in Cichlidae.


Nigeria country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Occurs in the Benue (Ref. 3064, 31256, 52346, 53405), Cross (Ref. 31256, 53405).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stiassny, M.L.J., 1989
National Database:

Common names from other countries

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335);  sudanensis: Named by Daget (1954) presumably in reference to the middle Niger localities he sampled in the French Sudan; the French term "soudanienne" (Soudan) is anglicized by Beadle (1974) and Lowe-McConnell (1975, 1985) as "soudanian" (Ref. 52346).

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

; пресноводный донно-пелагический.   Tropical; 18°N - 5°N

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Africa: Upper and middle Niger, and the rivers Bénoué, Cross and Wouri in Nigeria and Cameroon (Ref. 53405).

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL самец/пол неопределен; (Ref. 81260)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 13 - 16; членистые (мягкие) лучи спинного плавника (общее число) : 13 - 15; колючие лучи анального плавника: 3; членистые (мягкие) лучи анального плавника: 7 - 8; позвонки: 28 - 29. Diagnosis: 13 or fewer (rarely 14) gill-rakers along lower limb of first arch; 37-43 lateral line scales; head length 28.0-34.1% of standard length; predorsal length 36.5-43.2% of standard length; more gradual rise in dorsal spine length from 1st to 6th-7th; pectoral fin relatively short, rarely reaching level of spinous anal fin (Ref. 52346).

биология     глоссарий (например epibenthic)

Prefers algae and plant matter, as well as invertebrates; maternal mouthbrooder that does not pair-bond (Ref. 52307). Maximum total length 26.0 cm (Ref. 42518).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Mouth brooder (male or female is unknown).

Основная ссылка Upload your references | ссылки | координатор : Kullander, Sven O. | соавторы

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

Статус Красного Списка МСОП (Ref. 130435)

  Не вызывающий беспокойства (LC) ; Date assessed: 10 January 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




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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):  2.6   ±0.25 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (14 of 100).