Transport of killifish Hypsolebias flagellatus: effects of salt use and previous feeding in association with transport time

Abstract

ABSTRACT The aim of the study was to evaluate survival and water quality during the transport of Hypsolebias flagellatus using different concentrations of salt in water and different transport times in association with different previous diets. In experiment I, 40 males (1.38 ± 0.83 g) were used and the tested salinities were: 0 (control), 2, 4 and 6 g of salt/L. Dissolved oxygen was the highest in the concentration of 4 g of salt/L and lower in the control treatment (P <.05). In experiment II, 30 males fed (0.68 ± 0.27 g) with commercial diet and 30 males (1.48 ± 1.00 g) fed with artemia were transported during 12, 24 and 48 hours. The survival after transport was lower in 48 hours (P <.05). The water pH was higher in animals fed with diet (P <.05). The water temperature and water total ammonia increased with increasing transport time (P <.05). Dissolved oxygen decreases regardless of diet (P <.05).