One and two-individual movements of fish after chemical exposure

Abstract

Abstract Movement behavior of an indicator species, zebrafish (Danio rerio), was analyzed with one-and two-individual groups before and after treatment with a toxic chemical, formaldehyde, at a low concentration (1 ppm). After the boundary area had been determined based on experimental data, intermittency was defined as the probability distributions of the shadowing time during which data were above a pre-determined threshold and were obtained from experimental time-series data on the forces and the inter-distances for one ...