Water parameters correlated with the zootechnical performance of shrimp Litopenaeus vannamei grown in oligohaline waters

Thiago Brandão  Cavalheiro; Juan Carlos Letelier  Carvajal; Reinaldo Farias Paiva de  Lucena; Carlos Vinícius Carvalho do  Nascimento; Thais Teresa Brandão Cavalheiro  Ribeiro

Water parameters correlated with the zootechnical performance of shrimp Litopenaeus vannamei grown in oligohaline waters

Autores

Thiago Brandão Cavalheiro

Juan Carlos Letelier Carvajal

Reinaldo Farias Paiva de Lucena

Carlos Vinícius Carvalho do Nascimento

Thais Teresa Brandão Cavalheiro Ribeiro

Editor

Universidade Estadual de Maringá

Descripción

The present study aimed to correlate the influence of water quality, cultivation time, area, and density of ponds on the zootechnical performance of shrimp Litopenaeus vannamei in oligohaline waters. It was demonstrated that, under the conditions of this research, better control of temperature, pH and water alkalinity can be employed. Ammonia levels were within the normal range and correlated positively with the growth rate (ρ = 0.69859) and production (ρ = 0.66362) of the ponds. There was also a positive correlation between cultivation time and pond density with shrimp weight (ρ = 0.75305 and 0.68933) and pond productivity (ρ = 0.74763 and 0.79367, respectively). Negative correlations were observed between: I) pH with shrimp survival (ρ = -0.73238) and pond production (ρ = -0.68696); II) alkalinity and pond production (ρ = -0.66162). The results show that the cultivation of shrimp L. vannamei in oligohaline waters is viable and there is potential for increased productivity associated with better hydrological monitoring and use of higher density and cultivation time by some producers.