If you mess up Mother Nature kicks in to modify the population!!!! I have a test pond on my property!!! The bream come to the bank when I walk up to the waters edge!!! Looking fer a handful of feed. Population got out of balance and the male fry have been getting eaten up!!! All the fish are females that come to the bank 1-4 year old age class!!! Taught me a lot about MAN getting involved in making decisions for Mother Nature???? Best I can recall Jesus and John the Baptist took what they needed!!!!!! Didn't have slot limits or creel surveys!!!