Mormyrus longirostris
| Mormyrus longirostris | |
|---|---|
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Osteoglossiformes |
| Family: | Mormyridae |
| Genus: | Mormyrus |
| Species: | M. longirostris
|
| Binomial name | |
| Mormyrus longirostris W. K. H. Peters, 1852
| |
Mormyrus longirostris, commonly referred as the eastern bottle-nosed mormyrid, is a medium-sized ray-finned fish species belonging to the family Mormyridae. It was originally described by Wilhelm Peters in Monatsberichte der Akad. Wiss. Berlin, 1852.[2]
This species grows to a maximum length of 75 centimetres (30 in) and can weigh up to 10 kilograms (22 lb). The dorsal fin is more than twice the length of the anal fin. The dorsal origin is nearer to the tip of the snout than to the caudal fin base.
Ecology
[edit | edit source]It primarily feeds on weeds and insects, but also on small vertebrates, such as small fish and fish eggs. They hunt using electricity and can give a mild electric shock to defend itself.
Range and habit
[edit | edit source]M. longirostris can be found in abundance across the plains of Africa in freshwater habitats, including the lower and middle Zambezi, lower Sabi and Ludi rivers and in the Luapula-Moero-Bangwelo (Zambian Congo system). It inhabits the Ruvuma and Rufiji rivers in Tanzania, lakes Malawi, Tanganyika and Rukwa and other eastward-flowing rivers in Tanzania.
The species lives in caves and muddy areas with soft bottoms. It hides in weeds and characteristically forms small shoals.
Life history/behavior
[edit | edit source]Active mostly at night, it breeds during the summer rainy season, moving upstream in rivers after water has receded, with migrations at irregular intervals. Females carry 10,000–70,000 eggs at a time.
Relationship to humans
[edit | edit source]The fish is harvested for food with bait and hook.[3]
References
[edit | edit source]- ^ Konings, A., Bills, R., Getahun, A., Kazembe, J., Marshall, B. & Moelants, T. (2019). Mormyrus longirostris (amended version of 2018 assessment). The IUCN Red List of Threatened Species 2019. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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External links
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