Fig. 4

Relationship of monthly Walleye occupancy with respect to available Thermal-Optical Habitat Area in three regions of the Black Bay study system. Blue triangles represent data from the southernmost state, red squares represent data from the state between Bent Island and George Point, and black circles represent data from the northernmost state. The solid line shows the significant relationship for the southernmost state. The dashed trend line shows the relationship for all data combined. Inset shows data for the two states found within the box at the bottom left of the main plot. Monthly time periods (MJ, May 15–June 14, JJ, June 15–July 14, JA, July 15–August 14, AS, August 15–September 14, SO, September 15–October 14) of data points shown, with MJ and JJ both falling on (0,0) for the southernmost state