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Tylochromis bangwelensis Regan, 1920

Hump-back bream
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drawing shows typical species in Cichlidae.

Congo (Kinshasa) country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Luapula River (upper Congo River basin) (Ref. 52346). Reports from further downstream, including Lake Mweru (Ref. 2970, 45616), the Luvua River (Ref. 2970), Lake Upemba (Ref. 45616) and the upper Lualaba River (Ref. 2970), are based on misidentifications of Tylochromis variabilis (Ref. 52346).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stiassny, M.L.J., 1989
National Database:

Common names from other countries

班韦球丽鱼, Kyhmyseuloja, Nsangula, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | 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).
  More on author: Regan.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の漂泳性.   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Africa: Luapula, Lake Bangwelu and surrounding swamps, and the Chambezi (upper Congo River basin) in Democratic Republic of the Congo and Zambia (Ref. 246, 45616, 52346). Reports from the Luvua, upper Lualaba and lakes Mweru and Upemba (Ref. 2970, 45616) based on misidentifications (Ref. 52346).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 11.5, range 11 - 12 cm
Max length : 27.5 cm TL オス/雌雄の選別がない; (Ref. 52962)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 13 - 15; 背鰭 (合計) : 14 - 16; 肛門の骨: 3; 臀鰭: 7 - 8; 脊つい: 28. Diagnosis: lower lateral line extending far forward (Ref. 52962).

生物学     用語集 (例 epibenthic)

Predominant food is the lake-fly in its larval aquatic stages (Ref. 246). Also feeds on plants; maternal mouthbrooder that does not pair-bond (Ref. 52307). Max. length of 27.5 cm presumed to be TL.

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

Female mouth-brooder; breeding occurs during the rainy seasons and the young, a favorite prey for the tiger-fish, keep closer inshore among Eleocharis reed and other vegetation (Ref. 246). Young fish still attached to the yolk sac can be found in the mouth of a parent which is at the verge of spawning again (Ref. 52961). The species breeds during a single spawning period toward the end of the rainy season (Ref. 2774). At highwater, the fish move from the lake to their breeding grounds in adjacent swamps to spawn (Ref. 52346).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Kullander, Sven O. | 協力者

Stiassny, M.L.J., 1991. Tylochromis. p. 526-533. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5714)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 16 February 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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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=0.01905 (0.00986 - 0.03683), b=3.00 (2.83 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.2   ±0.40 se; based on food items.
回復力 (Ref. 120179):  手段, １．４年～４．４年の倍増期間の最小個体群 (tm=2-3; K=0.4).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100).