LOW-COST METHOD FOR REMOVAL OF THE MACROPHYTE Salvinia sp. IN AN INFESTED POND

Abstract

Macrophytes are aquatic plants that occupy various niches and play an important role in ecosystems. However, their excessive growth can lead to environmental and economic damage. This study aimed to present a low-cost manual method for removing Salvinia sp. biomass from an infested lagoon in the Tietê and Sorocaba basins, Salto-SP. A surface gillnet was used to encircle and subsequently collect the biomass, which was manually removed with a rake and used for composting. In addition to improving the landscape, the intervention led to an increase in dissolved oxygen levels and a reduction in fish mortality.

Keywords: Salvinia sp; Eutrophication; Ecosystem restoration; Limnology.