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Analysis of trophic relationships in two shallow equatorial lakes Lake Naivasha (Kenya) and Lake Ihema (Rwanda) using a multispecifies trophic model

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Abstract

A multispecifies trophic model called ECOPATH II, which can be used to describe the trophic relationships in aquatic ecosystems on a quantitative basis, is briefly presented. When properly used, it can help to explain the trophic relationships in ecosystems and possible evolution of fishstocks after modifications of the environment (e.g. eutrophication, introduction of a new population and/or a significant increase of the fishing effort), and to compare the trophic structure of several ecosystems. Examples are provided on two shallow lakes: Lake Ihema and Lake Naivasha. They are compared with Lake George which was previously documented.

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Authors and Affiliations

  1. Department of Zoology, University of Nairobi, P.O. Box 30197, Nairobi, Kenya

    K. Mavuti

  2. Department of Inland Fisheries-I.N.P./E.N.S.A.T., 145 avenue de Muret, 31076, Toulouse Cedex, France

    J. Moreau & J. Munyandorero

  3. Unité d'écologie des eaux douces, Facultés universitaires N.D. de la Paix, 61 rue de Bruxelles, B 5000, Namur, Belgium

    P. D. Plisnier

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  1. K. Mavuti
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  4. P. D. Plisnier
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Mavuti, K., Moreau, J., Munyandorero, J. et al. Analysis of trophic relationships in two shallow equatorial lakes Lake Naivasha (Kenya) and Lake Ihema (Rwanda) using a multispecifies trophic model. Hydrobiologia 321, 89–100 (1996). https://doi.org/10.1007/BF00023166

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