The invasive brook trout is out-competing with the native and threatened bull trout in the waterways of the Malheur National Forest. Now, new efforts are underway to eradicate the invasive fish ...

The threatened and native bull trout (left) has been interbreeding with the invasive brook trout (right) causing some population challenges for restoration efforts. Courtesy of Rebecca Fritz ...

While plenty of anglers enjoy fishing for brookies, they are a threat to an iconic Idaho native, the bull trout, Bowersox said. Brook trout can outcompete and cross-breed with bull trout.

Brook trout have several traits — including earlier maturity that allows them to produce more eggs over time — that help them outcompete the bull trout. This decades-long protection strategy ...

The presence of brook trout says a lot about the condition of a lake, river, or stream. Brook trout are sensitive fish that can only spawn, grow, and survive in clean, cold water. If a body of ...

After they’re caught in the traps, the migrating bull trout will be physically transported to spawning grounds upstream by FWP fisheries biologists like Uerling. Trapped non-natives, like brook ...

A prized fish among Garden State anglers, the Eastern brook trout has seen significant population declines in recent years, threatened by several factors — from increasing water temperatures to ...