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Author Topic: estimating a trouts age  (Read 797 times)

Offline eroknroll

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estimating a trouts age
« on: Feb 18, 2010, 01:32 PM »
does anyone have a way to estimate a trouts age?  I know there are alot of variables but there has to be some general rule.
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Offline missoulafish

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Re: estimating a trouts age
« Reply #1 on: Feb 18, 2010, 01:37 PM »
Try to find some whitepapers on the given area and see what you can deduce. Lots of variables; species, water temps, food sources etc....
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Offline Nerka

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Re: estimating a trouts age
« Reply #2 on: Feb 18, 2010, 04:57 PM »
Most accurate way is to count otolith rings under a dissecting scope.  But there is probably a fairly good regression curve to show a size to age comparison for the given river or lake system of interest.  However, it really gets confusing trying to convert trout years to human or dog years.
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