Regarding the abstract provided in #18 above, the following quote recaptured my interest as this discussion proceeded, keying in on stocking Brown trout….
“Intensive annual stocking of Brown Trout could eliminate resident Brook Trout in less than a decade. Ecological differences, harvest behavior, and other habitat changes can exacerbate Brook Trout losses. Custom stocking scenarios with Brown Trout introductions at relatively low proportions of resident Brook Trout populations may be able to sustain healthy populations of both species within their present range.”
While there are some complaints here about the past and continued stocking of brown trout (BT) in Pa, it is worth noting that in most cases they had been stocked at what I would call low densities for at least a decade as RT production increased, often only comprising 10% of a preseason load and in my experience during a part of that time period, generally maxing out at 30% of a load except possibly in some circumstances. With my more limited exposure to stocking now on only about three urban/metro streams and with the substantial reduction in recent years in ST production and stocking, I’m not aware of what the general proportions are.
“Intensive annual stocking of Brown Trout could eliminate resident Brook Trout in less than a decade. Ecological differences, harvest behavior, and other habitat changes can exacerbate Brook Trout losses. Custom stocking scenarios with Brown Trout introductions at relatively low proportions of resident Brook Trout populations may be able to sustain healthy populations of both species within their present range.”
While there are some complaints here about the past and continued stocking of brown trout (BT) in Pa, it is worth noting that in most cases they had been stocked at what I would call low densities for at least a decade as RT production increased, often only comprising 10% of a preseason load and in my experience during a part of that time period, generally maxing out at 30% of a load except possibly in some circumstances. With my more limited exposure to stocking now on only about three urban/metro streams and with the substantial reduction in recent years in ST production and stocking, I’m not aware of what the general proportions are.
Last edited: