Sorry, I don't want to get into the technical definitions of these things, but they're important to understand. Especially when it comes to overfishing, most people think about recruitment overfishing when growth overfishing is more likely to occur (deals with maximum yield).

Basically recruitment overfishing is when you remove adult fish out of the population so that the adult population remaining or spawning biomass is reduced to a point that it doesn't have the ability to re-up the population again. This would be in theory what people are concerned with when they see pictures of dead bass. I'm not aware of any lakes where this is a real issue for black bass, period.

Growth overfishing is when animals are harvested at a size smaller than the size that would produced the maximum yeild per recruit.