Os Efeitos de Pisciculturas em Tanques-Rede: Identificação de Histopatologias Hepáticas em Plagioscion Squamosissimus (Heckel, 1840)

Abstract

Brazil has made a name for itself on the global fish farming scene, mainly by using net pens, which can influence environments by allowing the free circulation of water and thus enabling the continuous entry of organic matter into the aquatic system. This study focused on evaluating how the interaction between ecological and histopathological aspects can identify influences from fish farms, contributing to the development of sustainable production and environmental conservation policies. To this end, the liver of Plagioscion squamosissimus (wild) was evaluated in areas with and without fish farms. Nuclear hypertrophy, the presence of melanomacrophages, vascular congestion, and pyknotic nuclei were found more frequently in fish from the TR points, suggesting that changes in water quality and stress caused by managing fish farms can cause histopathologies. These findings highlight the need for more sustainable aquaculture management policies.