Fig. 4 in Preliminary study on the application of radio-telemetry techniques to evaluate movements of fish in the Lateral canal at Itaipu Dam, Brazil

Fig. 4. Movements of Prochilodus lineatus (fish no 1 and 4) and Pseudoplatystoma fasciatum (fish no 9, 10 and 13) in the lateral channel located near Itaipu Dam (detections in the fixed stations, in number of hours post-release, are shown in the white circles).