Answer:
The birth of more offspring than can survive
Step-by-step explanation:
Overproduction on the biology realm is when the different especies from the natural world show overproduction which is bascially creating more offspring than can actually survive and make it to reproductvie age, in this case the survival rate is different for all fishes but in Salmon cases they can lay over a thousand eggs and not all of this survive to reach reproductive age, and by not doing so preserve balance on nature.