Caracterização da qualidade de água em diferentes sistemas de cultivo de peixe no Assentamento Itamarati

Abstract

Family farming as a whole seeks to organize its activities to improve the quality of life and generate income, trying to expand and improve production diversification. Fish farming is an efficient and economically viable activity for small producers due to its deficiencies and the possibility of production in different farming systems. However, to be successful in the activity it is essential to guarantee the quality of the water in the breeding systems and parameters such as dissolved oxygen, oxygen saturation, temperature, pH, hardness, alkalinity and nitrogenous compounds must be monitored periodically, in addition to management and Any corrections must be made during the production cycle to reduce possible impacts caused by seasonality, such as dry and rainy periods. Therefore, the objective of this work was to characterize the water quality of the different fish farming systems in the Itamarati settlement during the period from May 2022 to June 2023. The experiment was carried out in the Itamarati settlement, district of Ponta Porã-MS. Water quality parameters such as Dissolved Oxygen (mg/L), Oxygen saturation (%), temperature (°C), Hydrogen potential (pH), toxic ammonia (NH3), nitrite (NO2-), hardness and alkalinity in different fish production systems, three properties with excavated ponds, three with canvas ponds and three with net ponds. Significant differences were observed between the water quality parameters of the production systems (P < 0.05) for pH, alkalinity and hardness. Fish farms with excavated ponds and net tanks showed smaller variations in the configurations evaluated, tarpaulin tanks were the ones with the greatest variations compared to the others. The data obtained during the work demonstrated that the water quality of the production systems was suitable for fish production.