Figure 5
From: A state-space model to derive motorboat noise effects on fish movement from acoustic tracking data
Temporal series of acoustic detections (presence of noise peaks generated by passing motorboats at close range in red and fish detections in blue) during the 10 days of the study for each fish (based on 12-min time steps). Red vertical lines represent the detection of at least a motorboat passing at close range within the 12-min time period according to our Sound Pressure Level analysis. Note the increase of motorboat detections during the weekend (July 29th and 30th). Blue bars represent number of detections for each individual by all the receivers during 12 min. Grey shadowed areas represent night time according to local sunset and sunrise data.
