| income evaluation of small - scale fishers in two brazilian urban reservoirs: represa billings (sp) and lago paranoá (df). | the income of small-scale fisheries of two urban reservoirs in brazil: represa billings (127 km2) located in the metropolitan region of são paulo, the capital city of the state of são paulo and lago paranoá (38 km2) located in brasília (df), the capital city of brazil were calculated and compared. both fisheries are mainly based on the alien nile tilapia oreochromis niloticus (more than 80% of the total catch). although these reservoirs are nearly 900 km apart, their native fish fauna belong to ... | 2006 | 17119829 |