TU Berlin

Chair of Water Resources Management and Modeling of HydrosystemsPublications

Page Content

to Navigation



Carrying capacity limits of net cage aquaculture for Brazilian reservoirs
Citation key ggrbcmb15
Author Gunkel, G., Matta, E., Selge, F., Nogueira da Silva, G. M. & Sobral, M.
Year 2015
Journal Revista Brasileira Ciencias Ambientais (RBCIAMB)
Note in press
Abstract Finfish aquaculture in net cages is widely used in Brazilian reservoirs, mainly for tilapia production. There is a large and increasing potential for production in the São Francisco River Basin, and particularly the Itaparica reservoir. Tilapia production amounts to 20,000 t y-1, with a licensed amount of 43,267 t y-1. This intensive fish production in net cages is responsible for a significant biological oxygen demand, and phosphorus and nitrogen load on the reservoir, which promotes eutrophication. Modelling of Ico-Mandantes bay has identified a reduced water exchange within the bay, with an accumulation of cage culture emissions in the water. The carrying capacity of the reservoir was determined using the P load model, with a critical P concentration based on the phosphorus use efficiency, and targets for more sustainable finfish aquaculture were established.
Download Bibtex entry


Quick Access

Schnellnavigation zur Seite über Nummerneingabe