Efecto Del Neonicotinoide - Tiametoxam En El Desarrollo Embrionario Del Pez Cebra Danio rerio (Hamilton, 1822)
...
García Bon, Kelly Yohana | 2017-08-17
Zebrafish has emerged as the best choice for toxicological testing, present marked advantages as a model of vertebrate development and allows to understand the dynamics of various toxic substances. There has been growing concern over the use of neonicotinoid pesticides and possible ecological and ecotoxicological effects on pollinators and invertebrates, and indirect effects on aquatic ecosystems. The objective of the study was to evaluate phenotypic alterations from egg to larval period of zebrafish (Danio rerio) (6 days approximately) related to three doses (5 × 10−5, 1 × 10−4, 1,5 × 10−4) of the pesticide Neonicotinoid (Thiamethoxam). For this, four replicates were used, each repetition with twenty eggs. A randomized block design was performed evaluating the mortality rate and a macroscopic description of the alterations caused by this pesticide, obtaining as main results: kyphosis, lordosis, pericardial edema, yolk sac edema, fins hypertrophy and a slowdown in development, demonstrating a higher mortality rate in the treatment with higher concentration (1,5 × 10−4).
LEER