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  1. #41

    Default Re: Does a Stocked Trout Ever Become Wild?

    Sorry, decided to pull this post.
    Last edited by mandotrout; 02-08-2020 at 11:34 AM.

  2. #42

    Default Re: Does a Stocked Trout Ever Become Wild?

    I just listened to a Orvis Fly Fishing Guide Podcast with John McMillan in which some epigenetics is discussed and changes that occur hatchery trout. He states that one way to tell what fish were raised in a hatchery is to look at scale samples. The hatchery fish scales will show wide spacing for the time they spend in that hatchery when food and therefore growth was fast.

    Another epigenetic change is that the hatchery situation selects for trout with rapid metabolism since food is abundant. The opposite is true in stream bred trout. They are selected for slower metabolism because they have to survive with less food so slower metabolism is a survival advantage.

    You can listen to the podcast here:

    Trout Markings and their Significance, with John McMillan
    Regards,

    Silver



    "Discovery consists of seeing what everybody has seen and thinking what nobody has thought"..........Szent-Gyorgy

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