Marcusenius thomasi
Behaviour:
unknown.
Size:
Maximum observed size: 200 mm SL.
Distribution:
A mormyrid from Upper Guinea: Guinea, Liberia and Sierra Leone.
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Mormyridae
Marcusenius thomasi (Boulenger, 1916)
EOL Text
Habitat and Ecology:
Habitat and Ecology
It is a demersal of 20.0 cm SL.
Systems
- Freshwater
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182602 |
Environment:
demersal; freshwater
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Tess Cruz, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=5084 |
Benthic feeder. Feeds on aquatic invertebrates (Ref. 36297).
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Grace Tolentino Pablico, FishBase |
| Source | No source database. |
Electric Organ Discharge:
unknown.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Sullivan, John P., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2140 |
IUCN Red List Assessment:
Red List Category
LC
Least Concern
Red List Criteria
3.1
Year Assessed
2010
Assessor/s
Laly, P.
Reviewer/s
Entsua-Mensah, M., Darwall, W. & Smith, K.
Contributor/s
Wide distribution in Western Africa. No major widespread threats, though is impacted by mining and deforestation in Liberia.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182602 |
Biology:
Affinities: close to M. mento and M. furcidens.
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Tess Cruz, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=5084 |
Population:
Population
No available data.
Population Trend
Unknown
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182602 |
General Description:
Translated from Bigorne 1990b:
Teeth are bicuspid. Dorsal begins clearly behind origin of anal (dorsal base 50–60% of anal base). Dorsal rays 22–27 and anal rays 37–43. There are 80 to 88 lateral line scales and 12 around the caudal peduncle. Body depth goes into standarnd length 3.4 – 4.3 times. Caudal peduncle is rather spindly: depth into length 2.9–5.5 times.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Bigorne, R., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2140 |
Threats:
Major Threats
Mining and deforestation in Liberia threaten this species.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182602 |
Range Description:
M. thomasi is only known from the Guinean region: Guinea, Liberia and Sierra Leone.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182602 |