Malawi country information

Common names: Mcheni, Nthamfya, Nthmafya
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Also Ref. 5595, 5689.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mi.html
National Fisheries Authority: http://isp.msu.edu/AfricanStudies/Plea/mfri.htm
Occurrences: Occurrences Point map
Main Ref: Turner, G.F., R.L. Robinson, P.W. Shaw and G.R. Carvalho, 2004
National Database:

Common names from other countries

Tigerfish, 瘦嘴丽鱼, Schlanker Malawisee-Hechtbuntbarsch, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Rhamphochromis: Greek, rhamphos = bill, peak + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Boulenger.

Issue
Quote Turner et al. (Ref. 55949): "We consider that both R. leptosoma and R. melanotus are probably junior synonyms of R. esox. If this is accepted, R. esox can be considered the most distinctive and readily identified species of the genus."

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

; süßwasser demersal; pH range: 7.4 - 8.5; dH range: 5 - 30; tiefenbereich 2 - 65 m (Ref. 55949). Tropical; 23°C - 27°C (Ref. 13614); 9°S - 15°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Africa: Endemic to Lake Malawi.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m ?, range 19 - ? cm
Max length : 42.0 cm SL Männchen/unbestimmt; (Ref. 55949)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Diagnosis: elongated and very streamlined shape; body in cross-section more rounded than congenerics; frequently exhibits a horizontal stripe (Ref. 55949).

Inhabits the open water (Ref. 5595). Widely distributed in shelf and rocky reef zones, usually where the bottom is fairly shallow; rarely found offshore; small juveniles widely distributed in the littoral zone in swampy, sandy and rocky habitats; adults regularly encountered near sandy beaches in the shallows (Ref. 55949). Feeds on fish species like the small Utaka and the lake sardine Usipa (Engraulicypris sardella) (Ref. 5595).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Kullander, Sven O. | Partner

Maréchal, C., 1991. Rhamphochromis. p. 422-424. 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. 5689)

IUCN Rote Liste Status (Ref. 130435)

gefährdet, siehe IUCN Red List (VU) (A2d); Date assessed: 23 May 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell

FAO(Publication : search) | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.73 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (41 of 100).

Preiskategorie (Ref. 80766): Unknown.

Rhamphochromis esox (Boulenger, 1908)