Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Eponymy: Michael Graham (1898–1972) was a fisheries biologist and ichthyologist who worked for the Crown Agents. [...] (Ref. 128868), visit book page.
More on author: Norman.

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

; sötvatten bentopelagisk; flodvandrande (Ref. 10608). Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa: Lake Victoria and affluent rivers, Lake Kyoga basin (Ref. 4903), Victoria Nile (Ref. 12526) and Middle Akagera system (Ref. 46152).

Length at first maturity / Size / Vikt / Age

Maturity: L_m ?, range 7 - ? cm
Max length : 25.0 cm SL hane/ej könsbestämd; (Ref. 4967)

In Lake Victoria in shallow, coastal waters particularly where bottom is sandy (Ref. 4903). In Lake Kyoga it frequents areas overgrown by water lilies (Ref. 49805). Feeds on chironomid larvae, and to lesser extent on Trichoptera, Gastropoda (Ref. 12526). Oviparous (Ref. 205). Males grow to larger size than females; breeds twice a year, during the rainy seasons; migrates up the river to spawn (Ref. 10608).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Sullivan, J.P.: Hopkins, C.D., S. Pirro, R. Peterson, A. Chakona, T.I. Mutizwa, C. Mukweze Mulelenu, F.H. Alqahtani, E. Vreven and C.B. Dillman, 2022. Mitogenome recovered from a 19th century holotype by shotgun sequencing supplies a generic name for an orphaned clade of African weakly electric fishes (Osteoglossomorpha, Mormyridae). ZooKeys 1129:163-196. (Ref. 128501)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 16 December 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Födosammansättning
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Food rations
Predatorer

Ecology
Ekologi

Population dynamics
Tillväxtparametrar
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Length-weight rel.
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Abundans

Life cycle
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Lek
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Ägg
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Larver
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referenser

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01288 (0.00598 - 0.02775), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.2 ±0.40 se; based on food items.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec = 248).

Fishing Vulnerability (Ref. 59153): Low vulnerability (21 of 100).

Price category (Ref. 80766): Unknown.

Cyphomyrus grahami (Norman, 1928)