This species occupies large rivers, open waters, macrophyte beds and vegetated fringes where it feeds on molluscs (Froese and Pauly 2003). It rises to surface to inflate its body resembling a balloon. This inflation is useful to the fish as it is less easily eaten by predators.
Akinyi, E., Azeroual, A., Bousso, T., Getahun, A. & Laly, P.
Snoeks, J., Tweddle, D., Getahun, A., Laly, P., Paugy, D., Zaiss, R., Fishar, M.R.A & Brooks, E.
This species has a wide distribution, with no known major widespread threats. It is therefore listed as Least Concern. It has also been assessed regionally as Least Concern for eastern, north eastern and western Africa. In northern Africa, it has been classed as 'Endangered' by Bishai and Khalil (1997) in Lower and Upper Egyptian Nile. The species EOO is more than 20,000 km2 and the AOO is more than 2,000 km2. However it is suspected that the species may be extirpated from below the dam, as it is no longer caught in the fishery catches (Kraiem, pers. comm.) so more information is needed on its current status before a full assessment can be made. It is therefore categorized as Data Deficient.
In northern Africa, dams, water pollution (agriculture, domestic and commercial/industrial), groundwater extraction and drought pose possible threats. In western Africa, fishing activities could lead to a possible reduction in population in the future, also climate change and the reduction of water flow threaten this species.
No information available. More research is needed into this species population numbers and range, biology and ecology, habitat status and threats, as well as monitoring and potential conservation measures.