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Joined: Feb 2015
Posts: 186
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OP
Joined: Feb 2015
Posts: 186 |
I stocked 120 F1 LMB in June and have started catching and tagging them so I can track and follow their growth etc. Question is, how many is enough to provide me consistent feedback over the years? I don't want to tag more than I need to, but I also want to be able to occasionally catch a tagged one as well. I was thinking about 25% (30 fish) or so. Does that sound about right?
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Joined: Mar 2005
Posts: 21,497 Likes: 266
Moderator Hall of Fame 2014  Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,497 Likes: 266 |
Excellent question that I have never seen answered in the pond context.
A 10% sample would provide enough data to do RW calculation sample. That is also a rough equivalent to a ES survey.
If you want to follow every fish then as close to 100% as possible. I see no reason to do that unless you just want to.
You cant catch every fish as many will not bite a lure/hook. This is even true with aggressive fish. So if you are tagging caught fish then you are sampling the "biters". Following your aggressive fish only would be interesting. When you catch one later that is not tagged (after the initial tagging) then compare it to the tagged fish for size and condition.
25% is plenty for condition analysis.
Last edited by ewest; 10/27/18 10:06 AM.
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Joined: Feb 2015
Posts: 186
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OP
Joined: Feb 2015
Posts: 186 |
Sounds good. I have just a few left to tag and I'll be at 25% so I think I'll stop there. Thanks!
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Joined: Jan 2006
Posts: 16,055 Likes: 277
Moderator Lunker
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Moderator Lunker
Joined: Jan 2006
Posts: 16,055 Likes: 277 |
I like 100%. Five or so years down the road, I would like to identify my original stockers vs offspring.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
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Joined: Mar 2005
Posts: 21,497 Likes: 266
Moderator Hall of Fame 2014 Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,497 Likes: 266 |
Dave has a point. That is a reason also to have them all fin clipped at the hatchery. Then you won't have to catch everyone and tag it even if that is almost impossible.
As you keep fishing if you catch any that look really healthy then tag them so they will not be removed down the road.
Last edited by ewest; 10/29/18 03:54 PM.
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Joined: May 2014
Posts: 3,864 Likes: 298
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Joined: May 2014
Posts: 3,864 Likes: 298 |
If you catch a tagged fish more than once, you know that it is aggressive toward lures (or really dumb) and probably should stay in the pond to pass along those genes.
Last edited by anthropic; 10/28/18 06:03 PM.
7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160
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