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Cyphomyrus discorhynchus (Peters, 1852)

Zambesi parrotfish
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Cyphomyrus discorhynchus
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Angola country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type-locality of the syntypes of Marcusenius cubangoensis: 'Cubango' (Ref. 82823).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ao.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Pellegrin, J., 1936
National Database:

Common names from other countries

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology:   More on author: Peters.

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

; agua dulce demersal.   Tropical; 22°C - 24°C (Ref. 12468); 11°S - 21°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: Cunene, Okavango, Buzi, Pungwe (Ref. 52193), Zambezi (Ref. 3203, 52193, 95585), Save (Ref. 13337) and Cubango Rivers (Ref. 3203). Absent from the Kafue River (Ref. 7248, 52193, 95585). Also in Malagarasi River, Lake Rukwa (Ref. 27292), lakes Tanganyika and Malawi (Ref. 3203, 52193). In the Congo basin known from the Lindi-Tshopo (Ref. 106290), upper Kasai (middle Congo River basin)(Ref. 2970), Lualaba (Ref. 45434), upper Lualaba (Ref. 2970, 45434) and the Mweru-Luapula-Bangweulu area (Ref. 13337, 95585).

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm 11.0  range ? - ? cm
Max length : 31.0 cm SL macho / no sexado; (Ref. 4967); peso máximo publicado: 1.1 kg (Ref. 52193)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 28 - 37; Espinas anales: 0; Radios blandos anales: 23 - 27; Vértebra: 39 - 41. Diagnosis: Dorsal fin up to 1.5 times in length of anal fin; origin of dorsal fin in advance of anal fin (Ref. 52193). Snout rounded, in front of mouth; eye well above mouth; chin with fleshy bulge (Ref. 4967). For distinguishing between specimens of Cyphomyrus discorhynchus en C. cubangoensis, the most useful anatomical characters are: longer dorsal fin length, longer anal fin length, higher number of dorsal fin rays and anal fin rays, and a higher caudal peduncle depth and caudal peduncle length ratio in C. discorhynchus than in C. cubangoensis (Ref. 119538).

Biología     Glosario (por ej. epibenthic)

Nocturnal shoaling species; favors large river channels with a soft bottom and fringing vegetation (Ref. 7248, 52193). Found mainly in sheltered bays, lagoons and swampy areas; occurs also in typical sandy or rocky rivers (Ref. 13337). Feeds on bottom-living invertebrates (Ref. 52193) and insect larvae at night (Ref. 5595). Known to migrate up tributary rivers of Lake Kariba during rainy season, though it is not yet clear whether this is a breeding migration (Ref. 13337). Breeds during summer rainy season; females carry up to 5,000 eggs (Ref. 7248).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 July 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesquerías: escaso valor comercial; Acuario: Comercial
FAO(Publication : search) | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores
Ecology
Ecología
Home ranges
Life cycle
Reproducción
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinámica larvaria
Distribution
Países
Áreas FAO
Ecosistemas
Ocurrencias, apariciones
Introducciones
BRUVS - Videos
Anatomy
Gill areas
Cerebros
Otolitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
Swimming speeds
Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referencias

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00857 - 0.02554), b=2.80 (2.65 - 2.95), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico (Ref. 69278):  3.2   ±0.40 se; based on food items.
Resiliencia (Ref. 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.16).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).
Price category (Ref. 80766):   Unknown.