Environmental impacts of farms integrating aquaculture and agriculture in Cameroon

Efole Ewoukem T., Aubin Joël, Tomedi Eyango Tabi Minette, Mikolasek Olivier, Corson Michael S., Tchoumboue Joseph, Van Der Werf Hayo M.G., Ombredane Dominique. 2010. Environmental impacts of farms integrating aquaculture and agriculture in Cameroon. In : 7th International Conference on Life Cycle Assessment in the Agri-Food Sector (LCA food 2010), Bari, Italy, September 22-24, 2010 :. s.l. : s.n., 375-380. (Proceedings of LCA food 2010, 1) International Conference on Life Cycle Assessment in the Agri-Food Sector. 7, Bari, Italie, 22 Septembre 2010/24 Septembre 2010.

Résumé : Four farms integrating aquaculture and agriculture in the western highlands of Cameroun were analysed from 2005-2007 using Life Cycle Assessment (I.CA) to better understand the contribution of fish-pond systems to regional sustainable development. LCA was conducted according to previous studies on aquaculture production using economic allocation and one tonne of fish production as the functional unit. The system boundary included on-farm processes, production of feed and fertiliser, fingerlings, and transportation at all stages. Dynamics of nitrogen and phosphorus were evaluated using a nutrient mass-balance modelling approach. Fertilisation of ponds with manure and crop by-products increased nutrient cycling; nevertheless, low quantities of nitrogen and phosphorus were assimilated by the fish. The main processes contributing to impacts were pig-manure fertilisation followed by feeding of wheat bran. Potential Eutrophication impact per tonne of fish produced was higher for these farms than that of other aquatic production systems due to the low efficiency of the system and the origin of nutritive inputs.

Classification Agris : M12 - Production de l'aquaculture
P01 - Conservation de la nature et ressources foncières

Auteurs et affiliations

• Efole Ewoukem T., INRA (FRA)
• Aubin Joël, INRA (FRA)
• Tomedi Eyango Tabi Minette, Université de Dschang (CMR)
• Mikolasek Olivier, CIRAD-PERSYST-UPR Aquaculture (FRA)
• Corson Michael S., INRA (FRA)
• Tchoumboue Joseph, Université de Dschang (CMR)
• Van Der Werf Hayo M.G., INRA (FRA)
• Ombredane Dominique, Agrocampus Rennes (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/563574/)

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