A compilation of research finds that mountain streams aren't as pristine as once believed but biodiversity still persists.
Pennsylvania's Unassessed Waters Initiative finds trout in overlooked streams with the help of local biologists and Trout Unlimited crews.
Advancements in research have led to the implementation of Environmental DNA (eDNA) as a tool for assessing fish populations.
Trout Unlimited's 2014 TroutBlitz initiative continues to catalog wild and native trout across North America through citizen science efforts.
The Great Lakes region is home to a multitude of important fisheries and an unfortunate history of fish trafficking
One of the most popular saltwater fish in the state of Louisiana, the speckled trout has seen some unfortunate population trends in recent years.
Bacterial Coldwater Disease threatens wild and hatchery-raised fish of all species, though its impact on salmonids in the past few years has been particularly notable. BCWD impacts salmonids at a higher rate than other wild or farmed...
Ecologists with the Nature Conservancy are working in Grand Traverse Bay to restore deteriorating reefs there, according to the Traverse City Record-Eagle. The move is expected to help spawning populations of lake trout, lake whitefish and lake...
Northern pike illegally introduced into Idaho's Coeur d’Alene Lake have become a popular sport fishery for the big, toothy predators. But pike may also be taking a bite out of the lake's struggling population of native westslope cutthroat...
Lean and siscowet trout in Lake Superior will be the first fish in the Great Lakes to feature satellite technology. The National Oceanic and Atmospheric Administration and the Michigan Department of Natural Resources are equipping the two...
The U.S. Bureau of Reclamation has released more water into Idaho’s Snake River to improve habitat conditions for cutthroat trout, according to the San Francisco Gate. More water flow will help protect them from invasive rainbow trout...
Once a stable home for cutthroat trout, Yellowstone Lake is now threatened by invasive stocks of lake trout. Scientists say that an over-eager angler is likely to blame. The lake trout are harmful to the native cutthroats...
Scientists at the U.S. Department of Agriculture have created an all-vegetarian feed for nine carnivorous fish species that can be used in aquaculture applications, according to Yale Environment 360. They say the new feed is useful in...
Managers at the Red Cliff Tribal Fish Hatchery in Wisconsin are preparing for a tracking study to figure out where coaster brook trout raised there are going after they’re released. Most of the fish are reared and...
Rehabilitating a particular fish population isn't as simple as dropping a bunch of the same species into the deficient pond or stream. A number of factors come into play, including cost, the habitat’s carrying capacity and potential...
Below Prettyboy Reservoir in Baltimore County, the Gunpowder River flows through forested rock ledges and supports a wild brown trout fishery. And it's happening about 20 minutes from downtown Baltimore. "It feels like you're a lot farther...
In a tributary above the former dam sites, the cutthroats were found spawning in a different season than the rest of the subspecies.
Hydropower is a big deal: Hydroelectric dams generate about 16 percent of the world’s power, a figure that’s expected to rise by 3 percent annually for the next 25 years. Plus, this energy source is cheap and...
To the layperson or ichthyological initiate, fishing might seem like a simple, if not time-consuming, series of tasks: Find water. Cast line. Wait. Reel in fish. But in-the-know anglers understand that, in many cases, somebody is putting...
It's a common story in lakes of the West: Lake trout stocked there, outside their native range, thrive and grow to trophy size, but do so at the expense of other trout and salmon species. It happened...