Análise da viabilidade da criação de peixe em caixa d’água em Laranjal do Jari-AP.

Abstract

Fish farming has been growing over the last few decades, with cultivation methods being improved or invented, focusing on reducing impacts on the environment. The most common and oldest method used is the Excavated Tank, which is aggressive to the environment, due to the drastic change in the landscape, excessive use of water and risks of soil contamination. Another factor is that the excavated tank has higher costs when compared to other methods, such as the Net Tank and the Water Recirculation System (SRA) or Recirculating Aquaculture Systems (RAS). SRA is commonly seen as innovative and has a low environmental impact, since the water used is reused after mechanical and biological treatment, thus reducing the amount of water used, enabling fish production all year round. However, complex and large SRA requires high investment, which makes it impossible for small and new producers to adhere to the method. Thus, the Simple Closed Water Recirculation System emerged with a low-cost mechanical- biological filter, which basically consists of water tanks. This system requires an area of 15m2, which must be covered, like a shed, to protect it from sunlight and excessive rainfall. The methodology adopted is meticulously described, highlighting the data collection and analysis process, as well as outlining the essential characteristics of the water tanks used. These details are crucial for understanding the experimental conditions and for replicating future studies. In this way, it is essential to carry out a study focused on the Feasibility Analysis of Fish Farming in Caixa d'água, mainly related to the municipality of Laranjal do Jari - AP, which has few entrepreneurs in the sector and since the population of Laranjal do Jari is essentially rural, with low income for investment. The results are presented in a clear and visually appealing way, using graphs and tables to facilitate interpretation. The subsequent discussion compares and contrasts the results with existing literature, highlighting the study's unique contributions.

Keywords: system; environmental impact; fish.