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Cyphomyrus grahami (Norman, 1928)

Graham's stonebasher
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Cyphomyrus grahami
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: More on author: Norman.

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

Freshwater; benthopelagic; potamodromous (Ref. 10608). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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 / Weight / Age

Maturity: Lm ?, range 7 - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref. 4967)

Biology     Glossary (e.g. epibenthic)

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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
References
References

Tools

Special reports

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

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=0.01318 (0.00612 - 0.02839), b=2.85 (2.67 - 3.03), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.40 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 248).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (21 of 100).
Price category (Ref. 80766):   Unknown.