RRR ... most biologists will say it's not a good idea to stock a pond with Crappie, if the pond is smaller than 50 acres (& some will say not less than 100 acres). And even ponds of those sizes, it's normally stated that one should use Black Crappie for stock, since White Crappie tend to spawn in greater numbers (& quickly overpopulate the pond, & stunt ).

In the case of your pond ... it appears that the biomass is self regulating enough to keep turning out decent fish. And it may continue to do so, as long as there's enough top end predators to keep the numbers in check.

I'm just curious, but ... I thought you Texans called them "tanks", not "ponds"

... cp