POWELL, Wyoming — Yellowstone National Park officials say the population of native cutthroat trout in Yellowstone Lake appears to be rising amid efforts to reduce the numbers of invasive lake trout.
The Powell Tribune reported Thursday that nets used to capture and remove lake trout also scoop up cutthroats. Workers return the cutthroats to the water but the numbers help determine the size of the population.
Todd Koel, supervisor for the Yellowstone fisheries program, says about 500 cutthroats were caught in nets in 2011. The number rose to more than 1,000 in 2012 and nearly 1,300 this year.
Officials are tracking lake trout movement through surgically implanted radio tags to locate spawning beds.
Information from: Powell (Wyo.) Tribune, http://www.powelltribune.com