Fig. 2.

Daily estimates of littoral zone use by individual lake trout implanted with acoustic transmitters during each annual open-water period (n = 420–1,906 per year), including (A) the number of littoral forays, (B) the average foray duration in hours, and (C) the total time in hours. Red vertical dashed lines indicated the start and end dates of the summer period (i.e., when the mean littoral zone temperature exceeds 15 °C) each year. Each data point is a daily estimate for an individual fish. Note there were no telemetry data for 2005 (Materials and Methods).