Walleye Temperature and Depth Values and Abiotic Conditions of Three Northern Wisconsin Lakes Collected Between June – October 2022

Defining a realized niche using key habitat components like temperature, water clarity, and dissolved oxygen (DO) is important to understanding how distributions and demographics of freshwater fish populations may respond to environmental changes. However, habitat preferences are often defined in a laboratory setting and may not accurately reflect preferred habitat in nature. To define a realized niche for walleye, temperature and depth sensors were implanted into 176 fish in three northern Wisconsin lakes while temperature, light intensity, and dissolved oxygen (DO) profiles were monitored within each lake. These data include: 1) sensor temperature and depth observations collected by acoustic telemetry and archival tags between June – October 2022, 2) information on walleye tagged in this study, 3) sensor information from HOBO loggers that recorded lake light intensity and temperature, and 4) dissolved oxygen profiles recorded during the study period.