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Grays Lake contains a good Largemouth Bass fishery. Surveys in 2023 found bass at sizes from 8- to 18-inches. Bluegill were sampled in good numbers, but size is topping out around 6-inches. White Crappies are fairly abundant in the 8- to 9.5- inch range. Channel catfish are the most abundant game fish with the majority being 11.5- to 15-inches. Channel catfish have been found up to 28-inches.(2023)
In nearly all cases, Iowa fish are safe to eat. Cleaning and/or preparing the meal causes most of the problems regarding taste or color of fish. Like all living creatures, fish are susceptible to diseases, parasites, and other naturally occurring conditions in the water. If you suspect your fish is affected by any of these conditions, do not eat it. Consider eating smaller and younger fish which usually have lower levels of contaminants than larger ones. Most contaminants accumulate in larger, older fish. For additional information, check out our resources for eating and cooking Iowa caught fish.
To learn more about fish tissue monitoring, visit our Fish Tissue Monitoring page .