fishing app gives a better overview of the Bighorn river | Wild montana

“With lower flow rates, higher concentrations of some of the monitored parameters were expected,” wrote Kendall Ard, a Rocky Mountain College student who served as a water quality monitoring intern.

Higher nitrogen concentrations will fuel algae growth, which will lead to lower water clarity, Ard noted.

Pelicans: Because large white birds are known for a large fish appetite, pelicans are often accused of reducing populations of juvenile trout. Larissa Saarel, an undergraduate student at Rocky Mountain College, conducted a survey of the scientific literature regarding pelicans and found that large birds get a bad rap when it comes to trout.

“Cormorants, gulls and mergansers have been documented to consume more salmonids (often juvenile year classes) than pelicans,” she wrote. “In general, trout are not primary prey due to their use of deeper water (over 3 feet) than pelicans regularly feed.”

Bighorn pelicans are also more likely to be non-breeding birds, which have lower consumption rates than adults feeding chicks, Saarel found. In Montana, breeding populations of pelicans have been documented at Medicine Lake in far eastern Montana.

Redd mapping: In another experiment using new technology, outfitter Dennis Fischer flew a drone to see if it could be used to map spawning grounds for trout. Working with Tony Thatcher of DTM Consulting in Bozeman who analyzed the data, the duo mapped more than 27,000 square feet of possible nests at nine known spawning sites.

About Herbert L. Leonard

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