Levantamento florístico de macrófitas aquáticas e aspecto físico e químicos da qualidade da água na Sanga da Rivera, São Gabriel/RS

Abstract

Aquatic communities are first to be disturbed biota by physical-chemical modification of aquatic environments. The study of Aquatic Macrophytes is very favorable to assess anthropogenic impacts on water bodies. The Aquatic Macrophytes have strong relationship with the environment in which they occur, are considered good bioindicators aquatic and terrestrial environments that surround. Many natural aquatic ecosystems come with dump degraded material and organic growth. The Sanga of Rivera, a tributary of the river Vacacaí in the municipality São Gabriel, presents in its domestic effluent diffuse discharges route without prior sanitation reaching directly to aquatic biota. Have been identified a total 14 families, 22 genera and 31 species. According to the physical and chemical analyzes of water along the flow of Sanga Rivera no got significant results, such as variations of the species found, another factor may be related to the low similarity species and water quality.