Is the fishery of the introduced Tanganyika sardine (Limnothrissa miodon) in Lake Kivu (East Africa) sustainable?
2012
Guillard, Jean | Darchambeau, François | Mulungula, Pascal Masilya | Descy, Jean-Pierre | Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) ; Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]) | Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège) | Institut Supérieur Pédagogique de la Gombe (ISP-Gombe) ; Partenaires INRAE | Faculté Universitaire Notre Dame de la Paix ; Partenaires INRAE | Commission Universitaire pour le Developpement (CUD) under ECOSYKI (Etude du fonctionnement de l'ecosysteme du lac Kivu en vue de son exploitation durable) project; Fonds National de la Recherche Scientifique (FNRS) under CAKI (Cycle du carbone et des nutriments au Lac Kivu) project [2.4.598.07]
International audience
Show more [+] Less [-]English. Limnothrissa miodon, a small pelagic clupeid fish introduced at the end of the 1950s into Lake Kivu, became an important resource for the human populations of this area. The total stock of pelagic fish populations of this lake was estimated in 2008 by two hydroacoustic surveys, using an EK60 split-beam sounder (frequency 70 kHz). The total fish stocks were estimated to be approximately 5000 t in the rainy season and 6000 tons in the dry season. These values are similar to previous estimations performed in the 1980s. During 2008, the stock did not fluctuate throughout the seasons; however, the spatial distributions were different in the two hydrological seasons. Interestingly, the L miodon stock has appeared to remain stable over the last two decades, which suggests that the pelagic fishery in Lake Kivu has not been overexploited and that it is sustainable. (C) 2012 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.
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