Fish Sticks
Well-known member
If you really want to make sure a stream stays brookies that has invasive browns or rainbows below that can freely access, yea your probably going to have to use a barrier.
However, research I have posted before shows that high ratio of native trout to invasive ones can help offer biotic resistance to invasion. There is research done in NY using modeling that shows sampled streams in the study’s lack of native brook trout could not be explained by wild invasive trout alone and that repeat stocking of invasive species exponentially increased the rate of extirpation. Brook trout and brown trout do not co-exist and brown trout out compete brook trout fish to fish in most cases but when you skew the ratio there is some evidence they may be able to hold their ground in some cases. We don’t have an exact understanding about what situations those are more likely in yet from what I have come across.
So enter PFBC stocking right below the stream in question and many other brook trout. Its likely that “cats out of the bag,” in reference to browns coming here on a ship a long long time ago and reproducing, does not fully explain why all these class A brook trout streams full of browns or in transition. The repeated stockings with extremely high densities invasive brown trout are likely more than the streams could likely ever produce at that size to compete with wild native brook trout in many cases. These idiots are refusing to even discuss stopping stocking where AMD remediation is happening and brook trout are upstream
However, research I have posted before shows that high ratio of native trout to invasive ones can help offer biotic resistance to invasion. There is research done in NY using modeling that shows sampled streams in the study’s lack of native brook trout could not be explained by wild invasive trout alone and that repeat stocking of invasive species exponentially increased the rate of extirpation. Brook trout and brown trout do not co-exist and brown trout out compete brook trout fish to fish in most cases but when you skew the ratio there is some evidence they may be able to hold their ground in some cases. We don’t have an exact understanding about what situations those are more likely in yet from what I have come across.
So enter PFBC stocking right below the stream in question and many other brook trout. Its likely that “cats out of the bag,” in reference to browns coming here on a ship a long long time ago and reproducing, does not fully explain why all these class A brook trout streams full of browns or in transition. The repeated stockings with extremely high densities invasive brown trout are likely more than the streams could likely ever produce at that size to compete with wild native brook trout in many cases. These idiots are refusing to even discuss stopping stocking where AMD remediation is happening and brook trout are upstream
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