Planning for improved and sustainable cage aquaculture in Lake Volta, Ghana:
Professor Lindsay G Ross & Dr Trevor Telfer, Institute of Aquaculture, Stirling Dr Ruby Asmah, Water Research Institute, Accra, Ghana
This three-year project commenced in December 2012 and is funded by a Leverhulme/Royal Society Africa Grant. The principal aim of the project is to build capacity in environmental monitoring and assessment and to formulate a plan for improved and sustainable cage aquaculture on the Volta lake, so contributing to the developing industry and assuring regional food security.
Specifically, the project is working to:
- Build a spatial database to model cage system site suitability in Lake Volta
- Determine the quantities of waste being discharge into the Lake based on production practices
- Determine the mode of aquaculture waste (uneaten food, faeces and other metabolites) dispersal in the Lake
- Determine likely interactions between the wastes and other chemicals inputs for cage culture and the surrounding environment taking into consideration the hydrology of the lake
- Develop predictive models of the effects of cage culture on the lake and its effect on other uses (drinking water, irrigation etc).
- Build skills in environmental monitoring and impact assessments
- Develop guidelines for sustained cage aquaculture in the lake