Kwando River System Habitat
The Kwando River system is generally construed to consist of the upper Kwando originating in the Angolan headwaters, the middle reach Linyanti swamps and the lower reach Chobe River. The 70 centimeter (cm) Kafue pike (Hepsetus odoe) is a demersal species native to the Kwando River system.
Ion concentrations jgenerally in the rapid flowing river mainstem tends to be low in ionic content; however, swampy areas often contain higher concentrations of nitrate and other ionic components. Correspondingly, planktonic content is only appreciable at these slackwater portions of the river, notably in the Linyanti Swamp. The Kwando waters generally exhibit a lower pH level than the neighboring Okavango River, but have a slightly higher sulfate concentration.
The largest native demersal fish species in the Kwando is the 117 centimeter (cm) long tiger fish (Hydrocynus vittatus). Other large demersal native species are the 50 cm western bottlenose mormyrid (Mormyrus lacerda}, and the blunt-nosed African catfish (Clarias ngamensis). Each of these demersal vertebrate species are assigned a high trophic level (in the vicinity of level four).
- C.Michael Hogan. 2012. Kwando River. Eds. P.Saundry & C.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC http://www.eoearth.org/article/Kwando_River?topic=78166
- Fishbase. 2010. Fish species in the Kwando River Basin