IMO - your pond now likely lacks suficient predators and small BG will likely take over. If you figure those 42 LMB at 4 lbs a piece, that is 33.6 lbs per acre of LMB that were lost under the ice, and those are just the ones you know about, you may have lost twice as many big LMB.
If you figure those 42 LMB at 4 lbs a piece, that is 33.6 lbs per acre of LMB that were lost under the ice, and those are just the ones you know about, you may have lost twice as many big LMB. 
