Most important feature IMO for trout in ponds is to keep it oligotrophic or a very low nutrient budget UNLESS you have cold water flow through similar to how a raceway functions. The eutrophication processes in static water are what increases BOD and consumes your DO in deeper cold water especially in mid-summer when DO is needed in the depths. This is why quarries with steep banks and deep lakes that are toward oligotrophic can often maintain trout year round. Eutrophication = more productivity deaths & decay = loss of dissolved oxygen = BOD (biochemical oxygen demand) = dead trout even in cold deep water.
Last edited by Bill Cody; 06/14/14 09:24 PM.
