what do the perch look like on the sonar? smaller suspended marks? on the bottom only?
when i used to perch alot in my old boat it was just a matter of finding the pack and that boat didnt have a fish finder. So, i dont think i ve seen perch on a sonar or at leat i didn t know it
Most perch readings on a sonar will appear as a solid grouping on or very close to the bottom. On the edge of these thick schools you will see separated individual marks, also perch suspended in the water column will appear as individual fish. Most of those haystack looking schools are really smelt, also those those small tight suspended schools are either emeralds or shad. It’s been awhile since I have seen much for perch schools while fishing.