Today Tuesday water temp is 52F. I removed 10 egg ribbons. If your water is 50F with yellow perch, the YP should be producing egg ribbons somewhere in the pond. My experience is the YP will drop the ribbons in the shallower warmer water locations or in areas where wind has mixed warm water deeper below water transparency. YP can recognize 1F temperature difference.
Interesting. My water temp today was 40 deg F. Still had ice last week in the shady part of the pond. I am only 140 miles north of you, and about the same latitude as Ron.
Hopefully, my perch will produce some ribbons when it warms up.
