Alternativa productiva para la rehabilitación de ambientes post-explotación minera de áridos. Batán, General Pueyrredón, Buenos Aires

JUAN C. MALLO; DAMIÁN L. CASTELLINI; NAHUEL A. ZANAZZI,; MARÍA FERNÁNDEZ-SUBIELA; ENZO TRANIER; ANGELINA GOROSITO; MARÍA I. PRARIO

Villavicencio

Conferencia; IV Conferencia Latinoamericana sobre Cultivo de Peces Nativos ? ? XIX Jornada de Acuicultura y el VI Foro Regional de Acuicultura; 2013

Latin American and Caribbean Aquaculture 2013

Fish farming is described as a productive alternative environmental-educational recovery, post-mining of aggregates. The quarry of Paso de Piedra was selected to produce fish in the quarry Paso de Piedra, located in the city of Batan (General Pueyrredon). Prior to the fish introduction, a baseline study of the physicochemical characteristics of the water body was done; measuring twice a month and at different depths in situ dissolved oxygen, temperature, pH, turbidity and conductivity, from January 2012 to January 2013. During this time, presence and abundance of phytoplankton and zooplankton was studied, to determine water quality and productivity. To determine the presence and abundance of nitrates, nitrites, ammonia, phosphates, carbonates and particulated organic matter, water samples were taken monthly. Rainbow trout (Oncorhynchus mykiss) specimens of 28.7 ± 5.0 g were introduced in a semi-intensive farming using floating cages in the deepest part of the water body. The weight growth results (210 g average gain in weight) and survival (81.5%) obtained over 220 days of fish farming showed that this activity is feasible in these anthropic environments. This experience can be transferred to other anthropogenic environments with similar southeastern characteristics of Buenos Aires.