Eutrophication of Lake Hayq in the Ethiopian Highlands
- 1 January 1992
- journal article
- Published by Oxford University Press (OUP) in Journal of Plankton Research
- Vol. 14 (10) , 1473-1482
- https://doi.org/10.1093/plankt/14.10.1473
Abstract
Lake Hayq was previously described as having exceptionally clear water and very low phytoplankton biomass. It is now very different, with a shallow euphotic depth and abundant phytoplankton. Zooplankton populations have changed as well; Daphnia and Diaphanosoma were recorded before, whereas we found no Cladocera. Among the possible causes for this change in trophic status is the introduction of the planktivorous fish Oreochromis niloticus.Keywords
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