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 Subject :Update on 2011 Early Spawn Largemouth Bass Stocking Results.. 02-06-2011 06:03:20 
Doug Nygren
Joined: 04-01-2010 03:38:12
Posts: 31
Location

We finished stocking our early spawn largemouth bass today.  In 2011, we released 309,719 bass fry at Hillsdale Reservoir.  The fish were placed in the best available habitat and we set block nets to limit access of larger fish that might prey on the fry.  That gave the bass time to acclimate, start feeding, and escape most predators.  One problem we had with Hillsdale is we were not able to mark these fish so we could identify stocked vs wild when we sample in future years.  We are still having problems marking bass with OTC, a chemical mark we have used successfully on walleye.  The young bass don't tolerate OTC for some unknown reason.  The bass stocked at Hillsdale have about a one to two month head start on the 2011 wild bass.

 

We selected Cedar Bluff to be the site for early spawn fingerling bass stockings.  This week we released approximately 110,000 fingerling bass some of which were marked with OTC and will help us determine the contribution the stocked fish made to the 2011 year class.  We are very excited that we finally have some ability to evaluate this project.  The biologists were very pleased as they observed bass feeding immediately upon release.  These fish have about a 2 month head start on the wild bass at CDBR as the wild spawn hadn't started when we released fish this week. The gizzard shad spawn hasn't occurred yet either.  That means the stocked bass will definitely be able to feed on shad immediately upon the start of the shad spawn, something the wild fish likely won't have the mouth gape to do this year.

 

We also selected a medium size lake with limited bass recruitment, Herington New City Lake.  We released 100,000 bass fry.  Those fish were some of the last spawned at the Meade Bass Propagation Facility, and should still have been at least 3 weeks ahead of the peak of the wild spawn.

 

Finally, we will be releasing some of the last bass spawned at Meade into the new Horse Thief Reservoir near Jetmore.  They will be fingerling bass and should be stocked in about two weeks.  We estimate about 25,000 fish for that effort.

 

All of our hatcheries contributed to the effort this year.  All bass were spawned in the climate controlled facility at Meade.  Pratt, Meade, and Farlington hatcheries all reared some fry to fingerlings in ponds, and Milford Hatchery and Meade handled the OTC marking effort.

The dedication our staff has to this project is amazing as the hatchery, research, and management biologists are all actively engaged doing everything possible to make it happen.  I'll try to post some pictures of the project in the photo gallery for you to view.

 

The next step will be further evaluation of the past stockings and planning for next year's production effort.  I'm happy to talk to anyone that wants more information on the project.  Just give me a call or email me at doug.nyrgren@ksoutdoors.com.

 

 

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Last Edited On: 02-06-2011 12:16:59 By Doug Nygren for the Reason
 Subject :Re:Update on 2011 Early Spawn Largemouth Bass Stocking Results.. 03-06-2011 12:25:56 
Jeff Nolte
Joined: 04-01-2010 03:38:12
Posts: 95
Location

Doug, great news! Thanks again for all the hard work. Kansas lakes in general are improving. You and your team are greatly appreciated. With most lakes high, 2011 should be another good class.

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Last Edited On: 03-06-2011 13:56:52 By Jeff Nolte for the Reason
 Subject :Re:Update on 2011 Early Spawn Largemouth Bass Stocking Results.. 22-06-2011 07:31:50 
Doug Nygren
Joined: 04-01-2010 03:38:12
Posts: 31
Location

I have a quick update on the project.  The Culture Staff has been working with experts around the nation on marking bass with the chemical OTC as we have had trouble using the technique we have used successfully on walleye for some time.  Dr. Martha Mather, Assistant Unit Leader-Fisheries, KSU Fish and Wildlife Coop Unit, led an effort to evaluate our procedures.  They provided us with a couple of possible solutions.  Yesterday, we tried one those solutions and were successful in marking bass fingerlings with OTC with much less mortality.  We are much more confident now that next year's effort to mark bass will be successful and less stressful on the young bass.  This is great news for the project as it is critical to be able to distinguish stocked fish from naturally produced fish.

 

Today we began shoreline seining at Hillsdale to evaluate the Young of the Year population.  We will do the same at Herington City Lake and Cedar Bluff soon.

Of course the spring electrofishing efforts will be taking a hard look at Age 1 bass stocked last year.  We hope to see some Age 1 bass that are considerably larger than the average Age 1 bass at Cedar Bluff and Hillsdale. 

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Last Edited On: 22-06-2011 07:33:13 By Doug Nygren for the Reason
 Subject :Re:Update on 2011 Early Spawn Largemouth Bass Stocking Results.. 26-06-2011 05:21:01 
Dennis Forbes
Joined: 30-01-2010 01:29:18
Posts: 1
Location
Doug , thanks for all your hard work you put into the early spawn largemouth bass stocking project and keeping us updated on the project .. Was great to talk to you friday at our final day weigh in during the Wilson Lake divisional .. Dennis Forbes
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