The datasets here were used to determine annual changes in anthropogenic environmental stressors, the prey-fish community, and the walleye population in Lake Erie and its western basin during 1969–2018. Here, we provide three datasets, which are used in the paper by Sinclair et al. titled: "Anthropogenic change decouples a freshwater predator’s density feedback". Each dataset is provided as a separate tab in a single Excel worksheet. The first dataset ("Environmental stressors") provides the annual values for nutrient inputs, water transparency, temperature, and commercial walleye harvest. The second dataset ("Prey-fish community") provides the annual catch-per-unit-effort (CPUE; individuals per trawl minute) for all fish species that tend to be found in walleye diets caught in Lake Erie's western basin during 1969–2018 in fall (September-October) trawl surveys conducted by the Ohio Department of Natural Resources - Division of Wildlife. The third dataset ("Walleye") provides the annual estimated size of the age-3+ walleye population, the number of walleye growing degree days, and the average lengths of age-1 and age-2 walleye caught in gill net surveys conducted in the western basin by the Ohio Department of Natural Resources - Division of Wildlife. A summary and explanation of each variable are also provided in the "Info" tab. Further information on how values were calculated is provided in the methods and supporting information of the associated article.

Please refer to the associated article for data collection methods.

Please refer to the associated article for information on variable transformations and data usage.