Cardiac activity was recorded at

Cardiac activity was recorded at 28 ± 0.5 °C on 120 hpf larvae. Larvae were introduced in 1 mm wide lines molded in agarose (2%), immobilized with 3% methylcellulose and positioned in a lateral view. An acclimation of 2 h, in a temperature-controlled environment (28 ± 0.5 °C), was performed before analysis in order to stabilize heartbeat.