ZFIN Image: Sarasamma et al., 2020, Figure 4

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Figure Caption

Figure 4

Predator avoidance behavior endpoints comparisons between control and polystyrene nanoplastics (PS-NPs)-exposed zebrafish groups after a ~7-day exposure. (A) Predator approaching time percentage, (B) average distance to the separator, (C) average speed, (D) freezing time movement ratio, (E) swimming time movement ratio, and (F) rapid movement time ratio were analyzed. The 1 min. locomotion trajectories for the control, 0.5 and 1.5 ppm PS-NPs exposed fish in the predator avoidance test were presented in G to I, respectively, with the yellow-colored zone as the predator approaching region. The data are expressed as the median with interquartile range and were analyzed by a Kruskal–Wallis test, which continued with Dunn’s multiple comparisons test as a follow-up test (n = 30 for control; n = 19 for 0.5 ppm PS-NPs-exposure fish; n = 20 for 1.5 ppm MP-exposure fish; p < 0.05).

Acknowledgments

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