Levantamento de algumas espécies de macrófitas aquáticas no lago Caiau na comunidade de Teresina III no município de Tabatinga-Am Tabatinga-Am 2019

Abstract

The Amazônia is a biome known for its biodiversity of fauna and flora and its richness in aquatic environments, including the lakes, important habitat of aquatic macrophytes. The lakes have several characteristics, for example the lakes of terra firme, which compares to Lake Caiau because they are formed by a main river (Rio Solimões), white or clear waters, where they receive and transport alluvium. Aquatic macrophytes usually occupy 43% of these aquatic areas, both in the terrestrial-aquatic transition process and in the fully aquatic environment. The International Biology Program (IBP) defines aquatic macrophytes as the plants that inhabit from swamps to aquatic environments. In other words, it is termed as a group of photosynthetic organisms, which can be seen with the naked eye, whose vegetative parts can be, permanent or periodic, submerged, floating, fixed or growing on the water surface. They are of essential importance for the maintenance and dynamics of aquatic ecosystems, perform functions such as refuges and nesting for terrestrial and aquatic animals, their reproduction, food web. Aquatic macrophytes are considered bioindicators, used in wastewater treatment, nutrient cycling and sedimentation, several roles that contribute to the ecosystem flow. The objective of this study was to survey aquatic macrophyte species in Lake Caiau in the Teresina III Community in Tabatinga-AM. As a result, 21 species belonging to 15 families were identified, which give Lake Caiau the survival of its aquatic fauna and flora, its richness in biodiversity and the resources that guarantee the income and food of the families of the community. The continuity of the research is necessary in the identification of new riches existing in Lake Caiau, contributing to the scientific branch.