ewest says " too many LMB... can wipe out all the BG . That could be minimized by adding a few adult BG and harvesting a few LMB if the population swings to near 0 BG survival."
Yes I totally agree. As Biller sees low or no recruitment as a poor year class of young BG some LMB would be harvested and a few larger BG would be added to insure multiple year classes of adult BG. It is definitely a balancing act and monitoring of management.