Troutbert, regarding your first sentence in #67 above, if you are referring to competition from hatchery trout, that has been strongly challenged regarding population effects in Idaho’s review of scientific research projects that met what were presented as important design criteria. I mentioned the title and location of that paper in a previous thread.
Separately, I have in the past described the tremendous growth of Codorus’ Ck’s wild brown trout population despite very heavy stocking in its former DH Area, which is now its poorly named Trophy Trout Area. Within two or three yrs after becoming a DH area, the low density wild brown population expanded way into the Class A biomass category despite very intensive adult trout stocking at rates as high as 300 trout per acre. These days, most streams do not receive such a high stocking rate.
If you are referring to the effects of wild trout by-catch, primarily in non-special reg water, that can happen but it is most likely fishery and/or species specific. I would expect it to occur mostly, if at all, these days wild with brook trout populations. For clarification, I do not favor stocking over Class B ST pops. When WCO’s and other personnel have looked for wild brown trout in opening weekend harvests along SE Pa stocked Class A streams, few wild fish have been seen.
As for Sal’s question, the primary problem with privatization is the loss of public access, especially when the loss occurs to good quality fisheries or areas with beautiful aesthetics. Preventing such losses may require continued stocking in some cases.