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Mormyrus kannume Fabricius, 1775

Elephant-snout fish
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Mormyrus kannume
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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 Lake Edward drainage (Ref. 47905, 56140).
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: Poll, M. and H. Damas, 1939
National Database:

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Mormyrus: Greek, mormyros = a fish (Sparus sp) (Ref. 45335).

Issue
Records of Tana and Athi systems are dubious and probably refer to different species; status of North Ewaso Nyiro populations uncertain and needs further study (Ref. 52331).

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

; zoet water demersaal; diepte 0 - 70 m (Ref. 34291), usually 0 - 50 m (Ref. 34291).   Tropical; 22°C - 26°C (Ref. 2059)

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Africa: known from Lower Nile up to Lake Victoria basin (Ref. 1878), including Baro system in Ethiopia (Ref. 54860). Present in Lakes Victoria, Kyoga, Albert, Edward and George, the Victoria and Murchison Nile (Ref. 34290), and Middle Akagera system (Ref. 46152). Also known from Lake Turkana basin and Northern Ewaso Nyiro (Ref. 52331).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm SL mannelijk / geslacht onbekend; (Ref. 34290); common length : 60.0 cm SL mannelijk / geslacht onbekend; (Ref. 34290)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 55 - 75; Anale stekels: 0; Anale zachte stralen: 17 - 22. Diagnosis: snout long, about equal to the post-ocular length of the head (Ref. 28714), produced into a stout trunk whose thickness and angle to the face are variable (Ref. 34290). Dorsal fin very long, more than twice the anal fin length, with less than 75 rays, its origin above or slightly in front of the insertion of the pelvic fins (Ref. 4903, 28714).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Solitary, nocturnal species (Ref. 28714). In Lake Victoria in both coastal and offshore waters (Ref. 4903). May spawn in the main lake, perhaps in deep water over rocks (Ref. 52083). In Lake Kyoga in open water rather than weedy areas (Ref. 55624). Bottom feeder; small fishes eat lithophilic insects; adults almost exclusively insectivorous; chironomids dominate in the diet (Ref. 12526). Oviparous (Ref. 205).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 15 December 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

Visserij: commercieel; Aquarium: Commercieel
FAO(Publication : search) | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Diet compositions
Food consumptions
Food rations
Predatoren
Ecology
Ecologie
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Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Mass conversions
Recruitments
Abundances
Life cycle
Voortplanting
Maturities
Fecundities
Spawnings
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Egg(s)
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Toxicities (LC50s)
Genetics
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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00696 - 0.02076), b=2.88 (2.73 - 3.03), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.2   ±0.40 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Fec = 1,393).
Fishing Vulnerability (Ref. 59153):  High vulnerability (61 of 100).
Prijsklasse (Ref. 80766):   Unknown.