When I’m skiing or skating across a pond, I observe the shoreline, surrounding hills, islands, maybe a woodpecker or blue jay winging its way to the opposite shore. I look up at the sky, the clouds, swirling snowflakes. But there is a world beneath my feet that I don’t see, in what Henry David Thoreau called “the quiet parlor of the fishes.”
Beneath a layer of ice up to three feet thick, fish, reptiles, amphibians, and tiny invertebrates are going about their winter business. For most of these creatures, this means slowing their metabolism down to survive with reduced light and oxygen. They move less, eat less, and breathe more slowly than in warmer months. » Continue Reading.