Since the retreat of the glaciers, lake trout (Salvelinus namaycush) have been the top native predator in Adirondack waters. These northern fish require true cold (less than 55°F) and move downward when surface waters warm in late spring and summer. Consequently, they are isolated to the largest and deepest Adirondack lakes – most of them deeper than 30 feet – where they stay in the dark chilly depths all summer and early fall. The species name namaycush is believed to be an Algonquin term for “dweller of the deep.”
This need for very cold, clean, high-oxygen water can bring to light otherwise invisible changes beneath the surface. Water quality in the Adirondack interior, where we don’t have much industry or farming, can be abstract. You usually can’t see it, touch it or even taste it. But lake trout make the health of our coldest lakes real and tangible. » Continue Reading.