Fig. 4

Circular plots displaying the time (hours since low tide) within the tidal cycle that hatchery and wild Atlantic salmon (Salmo salar) smolts left the lake (top panel), left the estuary (middle panel) and arrived at the marine arrays (bottom panel) as indicated by the detections on each receiver. The solid line represents low and high tides (0°/360° and 180°). The long-dash line represents mean movement time within the tidal cycle. The * indicates where movements were significantly related to tidal cycle