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Joined: Jan 2003
Posts: 90
Lunker
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OP
Lunker
Joined: Jan 2003
Posts: 90 |
So if threadfin shad die when the water temperature drops below 42, how do they make a comeback and spawn every year?
Texas lakes are about to see some zero degree air temps. Will that kill all the threadfin? If so how do they spring back?
Are there eggs from last year dormant and waiting to hatch?
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Joined: Apr 2002
Posts: 3,346 Likes: 97
Editor, Pond Boss Magazine Lunker
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Editor, Pond Boss Magazine Lunker
Joined: Apr 2002
Posts: 3,346 Likes: 97 |
Hey Al, When the water temperature hits 42, as it will shortly, threadfins will die. No eggs, no threadfins, no chance. For Vilbig, that's probably a once-in-ten-years occurrence. They'll need to budget to buy more this spring.
Teach a man to grow fish... He can teach to catch fish...
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Joined: Jan 2003
Posts: 90
Lunker
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Lunker
Joined: Jan 2003
Posts: 90 |
What about big lakes like Lake Whitney? How do they rebound?
Is there any chance that the shad could find the freshwater springs in Lake Vilbig and survive the cold?
Last edited by Lake Vilbig - Al Kohutek; 02/12/21 01:49 PM.
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Joined: Nov 2007
Posts: 3,251 Likes: 584
Lunker
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Lunker
Joined: Nov 2007
Posts: 3,251 Likes: 584 |
The groundwater temperature around Dallas, Texas should be approximately 68F.
I have no knowledge of the spring flows into Lake Vilbig. However, if there are any significant flows, it will be difficult to get the entire lake below 42F, even with a few days of bitterly cold air.
Hopefully, some of your threadfins will survive!
Last edited by FishinRod; 02/14/21 03:15 PM. Reason: Dropped a word in sentence construction.
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Joined: Mar 2005
Posts: 21,475 Likes: 264
Moderator Hall of Fame 2014 Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,475 Likes: 264 |
In large lakes thermal refuges exist so the TFS can survive for short duration cold snaps.
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Joined: Jan 2003
Posts: 90
Lunker
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Lunker
Joined: Jan 2003
Posts: 90 |
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Joined: Sep 2014
Posts: 3,668 Likes: 57
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Joined: Sep 2014
Posts: 3,668 Likes: 57 |
A few yrs back, I could not find TFS because of the cold winter we had and my fish supplier did not have any. He did come up with some but it was the next year. I am betting it will be even harder to find them and am betting the price goes up when they are available.
Do not judge me by the politicians in my City, State or Federal Government.
Tracy
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Joined: May 2014
Posts: 3,861 Likes: 298
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Joined: May 2014
Posts: 3,861 Likes: 298 |
Tilapia may be scarce, too. CNBG and Fla LMB could be tough to source. Brutal cold that lasted for days hard on these species.
Last edited by anthropic; 02/19/21 11:53 AM.
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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Joined: Jan 2009
Posts: 28,417 Likes: 794
Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,417 Likes: 794 |
Just heard from a supplier that the fish farm next to theirs tried to seine a pond for some Golden Shiners. All dead........
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Joined: Oct 2015
Posts: 2,424 Likes: 19
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Joined: Oct 2015
Posts: 2,424 Likes: 19 |
We have some threadfin shad kills in our local deep COE reservoir, Beaver Reservoir, but it seems enough always survive to repopulate. The stripers, HSB, and blue catfish get really fat when the TFS begin to die. It's been frozen over before, and the TFS always come back. There must be some thermal refuge somewhere in the 100 ft to 200 ft depths.
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Joined: Apr 2020
Posts: 126 Likes: 28
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Joined: Apr 2020
Posts: 126 Likes: 28 |
We have a 45 acre spring fed lake near Tyler, Tx. We stocked threadfin heavily the last two years. I generally see the lake surface temps stay around 48 or so most years. We hit -8 during this storm and 2/3 of the surface was ice. Lake surface temp hit 38-40. We experienced a significant threadfin die off, but certainly not 100%. Whether they will recover significantly or need restocking remains to be seen.
Ross Canant
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