Finally got to the point where I have some shoreline thawed out. I want out today with a fork and scooped about a dozen places along shore. I scooped up as much algea, dead duckweed, and other plant material as I could. I searched through it and found nothing. Not even a stone fly or other larvae. No scuds! I'm going to keep looking as more area thaws. I'm not hopeful they survived in my pond though since I have many fish and not much submerged vegetation. I think I need to wait until my forage pond has good vegetation cover and stock it with scuds. I'll try that next year if things go well with water levels and vegetation.