Ecological changes in two Ethiopian lakes caused by contrasting human intervention |
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| Authors: | Brook Lemma |
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| Institution: | Alemaya University, Dire-Dawa, Ethiopia |
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| Abstract: | Alemaya and Hora-Kilole are small lakes found in central and southeastern parts of Ethiopia at similar altitudes. These lakes are exposed to contrasting human interventions. From Lake Alemaya water is withdrawn, while water is added to Lake Hora-Kilole because agricultural experts diverted flow from an adjacent river by constructing a weir. As a result, Lake Alemaya is continually shrinking due to uncontrolled water withdrawal for irrigation and municipal uses but Lake Hora-Kilole, now a reservoir, has increased in volume. Such uncontrolled contrasting anthropogenic intervention has caused ecological changes as observed from various limnological parameters. The problems of conserving these two tropical African lakes and the plankton contained in them are noted. Based on the present scenario, suggestions are forwarded as to what should be done with these lakes and similar situations elsewhere in the tropics. |
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| Keywords: | Ethiopian lakes Lake Alemaya Lake Hora-Kilole water use and conservation |
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