African Journal of Fisheries Science ISSN 2375-0715 Vol. 8 (5), pp. 001-009, May, 2020. © International Scholars Journals
Full Length Research Paper
Development of efficient recirculation system for Tilapia (Oreochromis niloticus) culture using low cost materials
M. Genaro Soto-Zarazúa*, Gilberto Herrera-Ruiz, Enrique Rico-García, Manuel Toledano-Ayala, Rocío Peniche-Vera, Rosalía Ocampo-Velázquez and Ramón G. Guevara-González
Laboratorio de Ingeniería Acuícola, Facultad de Ingeniería. Universidad Autónoma de Querétaro, Cerro de las Campanas s/n. C.P. 76010. Querétaro. Qro. México.
Accepted 22 April, 2020
In the current experiment, a recirculation system was built using low cost materials that are available locally and its performance was tested. The performance evaluation procedure was carried out in an aquaculture system in greenhouse with sex-reversed male Nile tilapia (Oreochromis niloticus) production in Querétaro State, Mexico. The recirculation system had four sections (sediment collector, gravel and sand filters, biofilter and clarification) in order to eliminate the organic matter produced by the fish excretion material and uneaten food, as well as, the nitrogenous compounds undesirable in the water tanks, such as, total ammonia nitrogen (TAN). The monitored variables include: temperature, dissolved oxygen, pH, visibility, TAN, nitrites and nitrates. The obtained data were compared with previous studies to evaluate the achieved state of the system. This research clearly demonstrated that it is feasible to use the proposed configuration in aquaculture systems in areas where water source is limited. Consequently, the obtained results represent an environmental standpoint for the conservation of water use in the aquaculture industry and also constitute an important contribution to the aquaculture and farmers who receive minimal economic support.
Key words: Water recirculation, aquaculture, sustainability, low cost, water use efficiency.