If they do spawn at a smaller size will their young's genetics be hampered of reaching great size potential because the parents were of a young/smaller size?
If I am reading this correctly, you are asserting that because a SMB is on the small size it will pass on different genetics to their offspring than a larger SMB would? If this is the case, size of a parent of any species of animal has nothing to do with the genetics they pass on. Whether it is a SMB spawning at 8" at button buck breeding a doe or a 13 year old boy getting lucky, the genes they would pass on at their young age would be the exact same genes they would pass on once they are fully mature.
