trout

U.S. Forest Service

Climate change is hurting certain fish species in North American streams and lakes, according to the July issue of Fisheries Magazine.

Abigail Lynch, a research scientist with the U.S. Geological Survey, is one of the guest editors for the special issue. She said she looked at several previous scientific studies when compiling the July issue and found worrisome trends, like how prolonged droughts impact fish that are normally used to having a lot of space in their habitat.

Hatches Magazine

Streams in the Bighorn Basin are seeing low water levels earlier than usual this summer, which could lead to trout die-offs.

Local anglers near Sheridan and Buffalo first reported unusually low water levels in Little Goose Creek and Clear Creek to Wyoming Game and Fish. Shallow water raises water temperatures, which can fatally stress trout. 

A combination of low rainfall, little snowpack and high spring temperatures are all factors in the low water levels. Game and Fish is projecting the trend could continue in the Bighorn Basin if the summer continues to grow hotter.

A study by several University of Wyoming researchers on salmon spawning in the Pacific Northwest could help pacific fish populations as well as Wyoming trout numbers. Clifford Riebe is an assistant professor in UW's Geology Department and helped author the study.

The report says certain kinds of riverbeds help salmon spawning and since trout and salmon are closely related Riebe says managers in both areas could use the data to grow fish populations.

A new study shows that the decline in native cutthroat trout has had dramatic impacts on the migratory elk herds in the Greater Yellowstone Area. 
 

Lead Researcher Arthur Middleton and others were studying the decline of elk herds in the region, and they determined that grizzly bears were playing a greater role in those deaths than they realized. 
 

The illegal introduction of lake trout into Yellowstone Lake has harmed the cutthroat trout population.