Agreed Bill. I can't imagine many ponds even with deep enough and cool enough water being oligottopic enough to hold over trout.
Color me skeptical.
Cody Note: Cecil - You are correct at least considering long term. Many ponds tend toward oligotrophic in early years then eutrophic conditions increase depending on the watershed and external inputs.
Best chances of year round trout survival is to have the pond in an area with cool summers were air temperatures are maximum high 70's or occasionally low 80's and water temps rarely get to 80F. Even then many ponds will still get low oxygen concentrations in the deep water in mid-summer. Best way to dependably raise trout is how Cecil does it by having a small or tiny pond that receives cold oxygenated well or spring water in mid-summer when & after water temps reach 70F. The input of cold oxygenated water throughout the pond serves as your insurance the trout will survive. Trout do not need a big pond. Trout are raised in shallow raceways with cold water flow thru. The current tendency toward warmer climate does not help maintain trout year round. It only takes for a few minutes of low oxygen to dip below 5ppm (mg/l)to kill a trout. For other fish minimum DO is usually around 2.5 to 3 ppm.
Last edited by Bill Cody; 06/15/14 01:41 PM.
