The Gunnison River is a legendary fishery, known for its powerful currents, stunning canyon walls, and, most importantly, its diverse fish populations. As guides who spend our days on this water, we have a deep appreciation for the species that call this river home. The story of the Gunnison’s fish is a fascinating mix of native history and modern angling opportunities.
The Evolution of a World-Class Fishery
Originally, the Gunnison was a classic freestone river, fed by snowmelt from the Continental Divide. Its cold, clear waters supported a host of native fish. However, the construction of three major dams in the mid-20th century transformed the river’s character. These changes, along with stocking programs, created a new ecosystem where different species could thrive. Today, the river is a complex and vibrant fishery, offering a unique angling experience shaped by both its wild roots and human influence.
Native Fish of the Gunnison
While many native species were impacted by the changes to the river, some still hold on in the Gunnison Basin. Preserving these original inhabitants is crucial for maintaining the region’s natural heritage.
- Colorado River Cutthroat Trout: This is Colorado’s native trout. While they are now rare in the main stem of the Gunnison, they can still be found in some of the small, high-altitude streams that feed the river. Finding one of these beautiful, spotted fish is a true treat.
- Speckled Dace: A small but resilient native minnow, the Speckled Dace is one of the few native species still commonly found throughout the river system. They are an important part of the food web.
Non-Native Species You Can Catch Today
Most of the fish you will catch on a guided trip are non-native species that were introduced over the last century. These fish have adapted incredibly well and are the backbone of the Gunnison’s reputation as a premier fly fishing destination.
- Rainbow Trout: Introduced in the late 1800s, rainbows are now abundant. Known for their vibrant red stripe and acrobatic fights, they are a favorite among anglers. They thrive in the river sections and reservoirs alike.
- Brown Trout: These adaptable European natives can grow to trophy sizes in the Gunnison. Browns are often more elusive and can be a thrilling challenge to catch. They are distinguished by their dark bodies covered in black and red-orange spots.
- Kokanee Salmon: These landlocked salmon provide an exciting seasonal opportunity. Stocked from local hatcheries, they travel in schools and feed on zooplankton. Their fall spawning run up the river is a spectacular event, as the males turn a brilliant brick red.
- Lake Trout (Mackinaw): Found in the deep, cold waters of the reservoirs, these giants are the apex predators of the system. Growing over 30 inches long, they are a formidable challenge for any angler.
- Brook Trout: “Brookies” are often found in the smaller tributary streams feeding the main river. Their stunning coloration—a dark body with red spots inside blue halos—makes them one of the most beautiful fish in the valley.
- Yellow Perch: An illegally introduced species, yellow perch have established themselves in Blue Mesa Reservoir. They are easily identified by their yellow sides and dark vertical stripes.
Conservation and the Future of Our Fishery
As outfitters, we are committed to protecting this incredible resource. We practice and teach ethical angling techniques, such as catch-and-release and proper fish handling, to ensure the Gunnison River remains a healthy, thriving ecosystem for generations to come. Understanding the balance between native and non-native species helps us all be better stewards of the water. Ready to experience this diverse fishery for yourself? Our expert guides know where these fish live and what they eat, and can help you experience the fishing trip of a lifetime.
Ready for a Fun Filled Day on the Water? Book Your Trip Today.