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Marcusenius thomasi  (Boulenger, 1916)

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Marcusenius thomasi
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.

Environment / Climate / Range Ecology

Freshwater; demersal.   Tropical; 12°N - 6°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Guinea, Sierra Leone, Liberia. Reported from Guinea-Bissau (ref. 13331).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 2915)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 22-27; Anal spines: 0; Anal soft rays: 37 - 43. The head, some parts of the body and the end of the dorsal and anal fins are darker in coloration. The whole body is generally brown. Dorsal fin origin behind anal fin origin, dorsal base/anal base rates = 0.5-0.6. LS/body depth ratio = 3.5-4.5. Long caudal peduncle, length/depth ratio = 2.9-5.5.

Biology     Glossary (e.g. epibenthic)

Affinities: close to M. mento and M. furcidens.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Ecology
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Common names
Synonyms
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Eggs
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Length-weight
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Morphometrics
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00616 - 0.03392), b=2.85 (2.67 - 3.03), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.5   ±0.28 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (24 of 100) .