Monitoramento da qualidade da água de fazendas de camarão marinho da região de Jaguaruana e Limoeiro do Norte – CE, realizado pela empresa Camarágua

Abstract

Brazilian shrimp farming experienced significant development with the introduction of Litopenaeus vannamei, due to its hardiness, rapid growth, and wide salinity tolerance range. This study aimed to monitor and describe the water quality monitoring carried out by the company CAMARÁGUA on L. vannamei farms located in the municipalities of Jaguaruana and Limoeiro do Norte, Ceará. The internship took place in March 2025 and included water sample collection from ponds on the company's farm, physical and chemical analyses in the laboratory, biometric measurements of shrimp produced in the ponds, as well as technical visits to 10 farms that receive technical assistance from the company in Limoeiro do Norte and technical guidance to producers. Water analyses were performed using the company's own kit, evaluating parameters such as alkalinity, total hardness, calcium, magnesium, ammonia, nitrite, salinity, and pH. The results showed that on the farms visited, many parameters were outside the ideal ranges recommended for shrimp farming, especially low calcium and magnesium concentrations, and in some cases, high ammonia and nitrite levels. The company's own ponds presented more stable parameters, although they also required adjustments during the monitoring period. The company adopted corrective protocols such as the application of limestone, agricultural gypsum, magnesium sulfate, and probiotics, in addition to the use of aerators to maintain water quality. CAMARÁGUA's technical expertise proved effective in both identifying problems and proposing appropriate solutions, contributing significantly to the sustainability of regional shrimp farming. The experience gained during the internship reinforced the strategic role of Fisheries Engineers in the management of aquaculture systems.