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Native Trout Recovery modelling, Government

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Further to that suggestions were ones being discussed in the 80's ..LOL

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It's a long read.

Originally they used 50% mortality for catch & release bull trout for their modelling. It was later reduced to 33%.  Unfortunately there isn't much measured data for catch & release on bull trout in Alberta. So what is the real number?  No one really knows but 33 percent seems high to me.  Obviously if you are a biologist advocating for closing a river you are going to pick (guess) numbers for your model that supports closing a river to fishing.    When the Pembina reopens to fishing I'm sure it will be deemed a success by the biologists and used as the "proof" for more river closing. 

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On 8/29/2019 at 8:10 AM, fishjunkie said:

It's a long read.

Originally they used 50% mortality for catch & release bull trout for their modelling. It was later reduced to 33%.  Unfortunately there isn't much measured data for catch & release on bull trout in Alberta. So what is the real number?  No one really knows but 33 percent seems high to me.  Obviously if you are a biologist advocating for closing a river you are going to pick (guess) numbers for your model that supports closing a river to fishing.    When the Pembina reopens to fishing I'm sure it will be deemed a success by the biologists and used as the "proof" for more river closing. 

Its is now full of Brook trout so not sure they can claim it as a success

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Yup, Pembina did not need a closure to make more brook trout, it was already loaded.. An incredible amount of real data was ignored before that closure was made essentially just on a pile of assumptions. Hope to hear some changes on that file but not holding my breath. 

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How many of us have caught the same trout numerous times with no seemingly ill effects?

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