Old, Fat, and Fertile Fish Are Essential to Fishery Survival

You may be familiar with the idea that the young are the legacy and backbone of any community, leaving the old to grow fat and retire without a care in the world. It would be nice to think that this romantic concept applies to animal populations too. However, researchers are arguing that this is just not the case. Fisheries are extremely dependent on their old, slow, but still fertile females to keep populations up.