Repelencia de larvas del camarón blanco (PENAEUS VANNAMEI) expuestas a químicos de protectores solares.

Abstract

The purpose of the present study is to measure the escape response of white shrimp Penaeus vannameie larvae exposed to doses of sunscreens through a multicompartmental system of non-forced exposure, designed to simulate pollution gradients. A system of fifteen compartments was established and a test was carried out to test the scenario and analyze the distribution of the larvae in the absence of contaminants, which demonstrated that the organisms moved freely in the system without showing preference for any of the compartments. cameras. The repellency of three commercial sunscreens [ A (Nivea), B (Nitrogena) and C (Tanga)] were experimentally evaluated by evaluating escape. In a heterogeneous non-forced exposure scenario, individuals were exposed for 4 hours to concentration gradients (0-300 mg/L) of sunscreens. In addition, the lethal dose and mortality after 48 hours in the forced exposure scenario were analyzed. The compartments' mixtures were homogenized, and the individuals' repellent response to the sunscreen chemicals was evident.