High-elevation lakes across the planet are freezing later in winter and melting earlier in spring. But not Yellowstone Lake, despite warming temperatures. Now researchers have an idea why.
The process, while not much fun for the trout, is generally accepted among fish and wildlife agencies as a helpful tool for tracking the size and health of populations.
The process, while not much fun for the trout, is generally accepted among fish and wildlife agencies as a helpful tool for tracking the size and health of populations.