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CPW biologist report -- Lake Granby

Post By: Ewert      Posted: 4/17/2018 11:28:00 AM     Points: 18    
Hey all -- finally got a few more reports up on the web. Post questions here, I'll watch this thread for as long as it stays on the front page.

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 Reply by: Smelly      Posted: Apr. 17, 1:06:29 PM     Points: 20550    
Just want to say thanks for taking the time to do this.
 Reply by: Golfprogreg      Posted: Apr. 17, 1:11:43 PM     Points: 9    
Good stuff. Thanks!
 Reply by: ParkerDude      Posted: Apr. 17, 7:17:00 PM     Points: 280    
Great Report!
 Reply by: bruce1fish      Posted: Apr. 19, 12:54:36 AM     Points: 56    
Thanks for posting this. Any suggestions for where to fish in the lake over the next couple weeks for lakers? I might head up tomorrow. Would probably shore fish then,Planning on bringing the boat up in a week
 Reply by: Ewert      Posted: Apr. 19, 11:52:17 AM     Points: 18    
Pretty much anywhere from shore this time of year bruce.
 Reply by: redleader      Posted: Apr. 20, 12:40:36 AM     Points: 547    
Thanks for the report.
The large lake trout populations have definitely decreased due to higher pressure, more knowledgable anglers, the open 4 fish limit along with the netting program that involves holding them in a nonareated tank, weighing them head down in a bucket rather than a cradle after struggling for up to 6 hours in a net.
We know the biggest factor for Kokanee thriving are water levels (out of our control) that impact the Mysis shrimp populations.
We should Not manage the Lake for Only a 'trophy' lake trout goal. Historically Lake Granby has been a great fishery due to it's High population of Lake Trout with a good chance of large ones not just for it's Trophy status.
The large population of smaller, high quality, excellent table fare under 20" Lake Trout is a Good thing and the Lake is more than capable of sustaining and supporting them. The large populations of small sized lake trout at places like Williams fork and Green mtn don't compare to the quality of Granby's.
The body condition of some of the larger Lake trout will always vary with good or bad Kokanee years due to Water levels regardless of large fish population levels that don't fluctuate greatly, we still see some in very good shape during poor Kokanee and Rainbow shortage years that have adapted to other prey like smaller Lake trout etc.
Fewer Lake Trout does Not make it a better fishery as less fish equals less opportunity.
Working toward adding a Mysis eating forage fish like Lake Whitefish would be a great benefit if the goal is to actually improve the fishery.
Lake Granby Is a very special place for our family, friends and community. It's great to see my kids and Grandkids out there enjoying it.
The best thing the Anglers can do to help the decreasing large lake trout population is to release all Lake trout over 20"s after proper handling and limited time out of the water