@PHDTHESIS{ 2025:1928480264, title = {Social behavior and hematological profile of the discus fish Symphysodon spp.: subsidies for aquarium production}, year = {2025}, url = "https://tede.ufam.edu.br/handle/tede/10918", abstract = "The fishing of Amazonian ornamental fish has been a source of income for traditional Amazonian peoples. Among the Amazonian species of fish, cichlids stand out for their diversity of body color patterns, territorial behavior, and good acclimatization to different breeding systems, which interest ornamental aquaculture. Within this group, the discus fish Symphysodon spp. stands out as a species of great interest. The manipulation of abiotic factors can favor the production of native species in an artificial system, making knowledge of the biological aspects of these species essential for the development of suitable management practice protocols. This study aimed to understand how manipulating factors such as conductivity and luminosity can affect the behavior of this species Symphysodon spp.. In addition, the hematological profile for the species S. discus was outlined. Based on the results observed, the reduction in acute conductivity can negatively influence the complexity of the behavioral repertoire of two discus species. However, high light intensity can favor the complexity of the social behavior of S. discus, which can favor hierarchical stability and, consequently, the choice of partners. Thus, the hematological profile of S. discus suggests that the species is sensitive to stress, which can be attributed to what occurs during capture. Therefore, this study contributes scientific information on the behavior and health of the species, which can be used for management protocols aimed at animal health and welfare.", publisher = {Universidade Federal do Amazonas}, scholl = {Programa de Pós-Graduação em Ciência Animal e Recursos Pesqueiros}, note = {Faculdade de Ciências Agrárias} }