Idaho fish stocking reports explain data, dates, and locations to help anglers find productive waters and catch more fish.

Native and introduced fish species in Idaho affect local aquatic ecosystems and shape fishing adventures across the state.

Arctic Grayling feature large sail-like dorsal fins, spring spawning behaviors, and rare native habitats across Idaho waters.

Kamloops rainbow trout in Lake Pend Oreille grow to over thirty pounds by preying on kokanee salmon in deep, cold waters.

Idaho state record fish by species, including rainbow trout, Westslope and Yellowstone cutthroat, steelhead, and Chinook salmon.

Idaho Lake Trout growth potential and the environmental factors that enable these cold water apex predators to reach massive sizes.

Idaho white sturgeon growth potential, maximum size, and the environmental factors driving these ancient freshwater fish in the Snake River.

Hatchery Chinook salmon in Idaho feature an adipose fin clip, distinguishing them from wild fish for legal angling regulations.

Hatchery steelhead and wild steelhead identification methods help Idaho anglers follow legal regulations and protect native fish populations.

Idaho’s sockeye hatch in freshwater, grow in the ocean, then migrate thousands of miles back to Redfish Lake in the Sawtooths, a run needing conservation.