Fish eating birds , primary host so Loons should be eradicated ?
Many times the black dots do not enter the flesh , and cooking does kill them , I toss the ones back with the extra protein 😃 But try and sell them you might be very disappointed
all the bigger lakes in the fish river chain have huge y. perch. long , cross and square grow the biggest ones. my p.b is a 16in. caught under the ice on cross in 45ft. fishing for salmon. it spooled me. anyone wanting a big catch of these look me up. im 10min from long 15 from cross and square. bring some marine coolers and a good fillet knife. good way to see if they have cysts is look under the jaw. if its clean usually the rest of the fish is also. most are clean here. never seen the yellow grubs here only the black dots and small gray cysts the size of a bb. in my shack on long i can average a 200 fish morning. i catch smelts from 3 to 7am then at sun up the yellows move in. the flasher is black from 10ft down to the bottom in 35 fow.