Carcinicultura no agreste paraibano: qualidade da água, um fator limitante

Abstract

This study deals with the comparative analysis of water quality in the cultivation of Litopenaeus vannamei shrimp in oligohaline water in the municipality of Guarabira, Agreste of Paraíba, Brazil. The main objective is to attract the attention of the shrimp producers to the quality of the water for the best result of the crop and thus to awaken in the entrepreneurs the importance of the parameters of the water of cultivation, since these have great influence in the development of the shrimp. In order to collect the data, weekly data were collected on the nursery water, followed by analyzes of the physicochemical parameters: temperature, dissolved oxygen (DO), pH, transparency, total alkalinity, total hardness, ammonia and nitrite to raise the limiting factors of water quality for production. According to the Principal Component Analysis (PCA) through the software R and later correlation with the parameters considered ideal for the crop, it was observed that the physical-chemical parameters of the water of cultivation have acceptable characteristics for the cultivation, however it is necessary interventions for maximum growth performance and thus contribute to the final report of the nursery production.