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Posted

While doing a report on catch and release a few years back I came upon an article that brought up this topic and stated that this method was a myth and would surely decrease the fishes chance of survival. If i can find the acticle I will post the part about that.

Posted

I'm sure the fish swam out of sight, which looked good for the TV audience, but I doubt that it was able to get back off the bottom. Fish inflate and deflate their swim bladders to regulate their vertical position in the water column. I would be very skeptical that a puncture in the swim bladder could heal or close up quickly enough for the fish to use it again, especially considering that the swim bladder is a pressurized system. Factor in the probability of infection and that bass would have been better utilized in the frying pan. Or, it at least could have been allowed to swim around in the live well for a while, giving it chance to slowly re-adjust to the lower pressure of its surroundings.

It's too bad crap like that gets shown on the air.

Posted

While on a recent vacation out of town, I watched a bass fishing show. One fish was stressed upon release and would not swim off, floating on the surface on it's side.

The angler took a rather long hollow needle and punctured the visibly inflated air bladder and released the air pressure. This allowed the fish to right itself and it apparantly swam off, hopefully to fight again.

I have never heard of this technique. Does anyone else know of this procedure? Is there any scientific evidence that it gives the fish a better survival chance after release?

Posted

OK, first news about fizzing - then how to FYI (because of how critical needle placement is, you most likely would puncture something else), then some follow-up articles. Long post sorry!

Ontario Ministry of Natural Resources (OMNR) report on fizzing entitled A Review of "Fizzing" - A Technique for Swim Bladder Deflation (prepared by S.J. Kerr in Nov 2001).

The executive summary concluded with:

Pending further research and evaluation, the widespread use of "fizzing" should be discouraged in Ontario.

Within the report it is stated that "Based on a relatively small number of studies which have been conducted to date, depressurization of angled fish can be a significant source of mortality. Up to 45% of fish caught at depths exceeding 10 meters (33 feet) do not survive release".

The same report states "Undoubtedly, the success of fizzing depends on the conditions at the time and also on the training and experience of the individual performing the procedure. It is a difficult procedure to perform accurately and, from an anatomical perspective, there is very little room for error."

The report recommends that to maximize post-release survival, walleye should not be taken at depths exceeding 7.5 meters (25 feet). The report also provides the results of recent surveys on the administration and regulation of competitive fishing activities in both the United States and in Canada. In response to the question "Do you advocate fizzing", 27 or 47 US jurisdictions (states) responded no, 8 jurisdictions responded yes, and 10 jurisdictions stated that they had no formal policy on the issue. In Canada, 7 of 12 jurisdictions (provinces) responding responded no to the question while 5 jurisdictions stated that they had no formal policy on fizzing.
Fizzed fish must be released where the bottom depth is less than the thermocline, otherwise the fish will die from low oxygen.

From the anal gland, count 5 scales up and 2 scales over (either side), and insert a hollow needle.... Insert the needle under the scale, and direct the needle on a 45 degree angle towards the bellyline. Go thru the skin with a quick jab, and then slowly move the needle inward, until you feel resistance. This resistance is the swim bladder. Poke thru that, and let the air out of the bladder. This should be done while holding the fish on his back, under water (in the livewell). You will see bubbles coming out of the needle. When the bubbles stop, the fish is done being fizzed.

For what it's worth, here is some "biologist stuff" from the report of the 2000 meeting of the American Fisheries Society's Walleye Technical Committee. To view all their proceedings -- which centered on walleye tournaments -- go to: http://ws3.coopfish.siu.edu/walleye_tech/sum2000mtg.htm

A couple of their reports dealt directly with fizzing. They are (and I quote via cut-and-paste):

6. Walleye tournaments in Wisconsin. Kendall Kamke, Wisconsin Department of Natural Resources, [email protected]

To assess delayed mortality for tournament caught walleye on the Winnebago system, two groups of tournament fish were held for 4-5 days after two tournaments, as well as a control group. One group of tournament fish was “fizzed” while the other was not. Control group fish were captured using electrofishing gear the day following the tournaments. Fish were held in live cages in the lake for one tournament and in DNR stocking trucks for the second tournament. During the 1st 48 hours for the cage-held fish, the “not fizzed” group had better survival than the “fizzed” group (78 vs. 24%). The control group had 96% survival for this same time period. However, past this columnaris developed in all three groups. By day 5, all but 1 fish from each of the two tournament groups was dead, and the control fish had suffered 44% mortality. Algae accumulation on the webbing of the cages was also a problem. The results from the stocking truck held fish were different. After 48 hours, both tournament caught groups had only 6% mortality, but the control group had suffered over 44% mortality. Past 48 hours, columnaris again developed and was a problem. Final mortality after 4 days for truck held fish was 18% for “not fizzed”, 39% for “fizzed”, and 56% for control. The experiment will be repeated again next year with changes in the number of fish held, different procedures, and better equipment to see if more reliable results can be obtained.

Kamke added later in his report that:
Ø Sixty percent of the states responding did not advocate gas bladder deflation or “fizzing”

###################
Also:
7. An Overview of Walleye Tournaments in Ohio. Debra Walters, Ohio Division of Wildlife, [email protected]

The Division of Wildlife conducted several years of fizzing experiments on Lake Erie tournament caught walleye (Project Leader: Dave Insley, Castalia State Fish Farm, 7018 Homegardner Road, Castalia, OH 44824, (419)684-7499, [email protected]). During the calm, 1991 walleye tournament, a total of 1,597 walleye were fizzed with 1 % mortality prior to release 20 hours later. A sample of 100 fish were held for six months at the Put-In-Bay Fish Hatchery with only three mortalities. In 1992, a fizzed versus non-fizzed experiment was conducted each day of the three day tournament. Each day two groups of 30 walleye (N=180) were randomly selected; one group was fizzed and the other group not fizzed (control). The fish were held in the hatchery for 14 days. All three groups of non-fizzed fish exhibited 100% mortality within nine days. The three groups of fizzed walleye exhibited an overall survival of 47%. Autopsies of dead fish revealed high incidence of fish spine puncture wounds through the abdominal cavity assumed to be due to poor livewell conditions due to rough lake conditions (3 to 6 foot waves). Non-experimental fish released immediately after each tournament day exhibited very high mortality. In 1993, a total of 2,061 walleye were fizzed and held for 24 hours. Immediate mortality was low, however, three weeks after the tournament large numbers of fish began dying at the release site. Again, lake conditions were very poor for the duration of the tournament. In summary, Ohio does not recommend fizzing walleye after a tournament because; 1) in most years Lake Erie is very rough during the tournament, therefore, livewell conditions are poor, 2) very time consuming and requires extra manpower, and 3) fish mortality is too high.

#############################
For what it's worth, I haven't talked to any biologists in my state that like fizzing either. They may be out there, but I haven't talked to them here. I just pull em up fast and put um back fast and have a great survival rate!

B2

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See Ya on the H2O

Posted

Thanks very much for the responses. Duluth Guy you really put in some effort and research into this topic. I'm convinced now more than ever, catch walleyes as shallow as possible and release quickly. They really don't need another hole in their body. Until someone comes up with some better data to justify the practice and a proceudre that is fool proof on wiggling fish, I won't be attempting any fizzing.

Posted

Well, If they are deep and you are there for meat then? I have tried reeling them in really slowwwww and fast as my line can take it. I found out that faster worked better for me. That includes sitting on the same spot on a calm day for 8-10 hours. The Perch had a harder time - they would surface back up in about 5-30 min. Slow reeled walleyes were 15-30 min. until they would float up. But fast retrieve with a fast release worked great! I am talking about 100 fish caught and released. Please don't come after me on the "How many did you kill?" Any floaters (which were all about 8-13inches) when to the livewell for eating. The perch where the 2 bald eagles lunch. I did not see any dead after fast C&R's.

B2

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See Ya on the H2O

  • 'we have more fun' FishingMN Creators
Posted

I find the opposite to be true. I've pulled up eyes and crappies in water over 30 ft and they all have bulging eyes and air bladders hanging out their mouths when reeled in quickly. In fact those fish are stiff as a board long before they hit the surface. When reeled in slowly I don't see that problem and they fight all the way to the boat. If we have any divers out there they can tell you the dangers of surfacing to fast from a deep dive.
About the fizzing, its been asked before and the consensus is its not a solution and just doesn't work.

Posted

I agree as I dive myself. And they do have the inflated bladder. The fish brought in slow did not but, did seem to come floating up later - With that said, it is my very unscientific(sp) view. I could be wrong!
But, I thought I would throw my $.02 in.

I could be that the fast reeled fish were the ones coming back up? I tried this 5 years back and my gray matter is turning to jelly daily.

Thanks for the follow-up!

B2

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See Ya on the H2O

Guest
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  • Your Responses - Share & Have Fun :)

    • smurfy
      😖🙃 pretty certain everyone else here isnt guessing Edwards lake...........goofball!!!!!!!🤣
    • Wanderer
      Up until April 24th? 😉
    • leech~~
      April 25th! DH'O
    • smurfy
      🤣 WELL.......LEECH...... since its free where's your name????????🙄
    • leech~~
      Dang, this is like a free meal on Lakestreet in Mpls.  I didn't know this many folks were still on the site until someone said "Free raffle drawing"  🤣 🤣 
    • SkunkedAgain
      Nah, I'm not changing my guess. It's more fun to make early predictions and see how far off I am.   I'll turn on the hair dryer and see if it helps.
    • JerkinLips
      Because I temporarily changed the rules, and smurfy was the 2nd person to wager a guess, I changed his prediction to April 25th.  Also, since SkunkedAgain was the originator of this competition and was the 1st person to guess, I will give him until Friday to change his prediction if he wants to (although he may regret if the ice goes out on April 18th).  After him, no more "changes" will be allowed on my board.   Lots of "good" open dates available for those that have not predicted yet.  Updated board below:  
    • SkunkedAgain
      https://www.timberjay.com/stories/moccasin-point-upgrade-has-longtime-users-concerned,22802   Moccasin Point upgrade has longtime users concerned DNR hopes to get major remake of key access underway later this year Posted Thursday, March 20, 2025 10:36 am   Marshall Helmberger LAKE VERMILION— With funding finally in place, the Department of Natural Resources is planning to move forward with an estimated $2-plus million renovation of the Moccasin Point landing, and users of the site say they’re concerned about the changes. The landing has been heavily used for decades by anglers, Boundary Waters visitors, residents of nearby islands and other remote-access properties on Lake Vermilion and, perhaps most critically, by emergency responders for everything from fire to medical response. Moccasin Point has also been a protected harbor for private barges loading and unloading as they service the many water-access properties in the area. Sarah Schmidt, who spends summers with her husband Jake at their cabin on nearby Pine Island, said there’s a lot at stake for people who depend on the landing. “A lot of people have designed their dream home around having access to that landing,” she said. “People need propane, they need lumber, and if they need to install a septic system, they need lots of gravel,” she said. For the many hundreds of island or other water-access property owners on the lake, all of that material comes by barge. Moccasin Point is particularly well suited for such use, since it is arguably the most protected harbor on Lake Vermilion, with islands and mainland protecting it from wind from just about any direction. It’s also centrally located on the sprawling lake and close to concentrations of island homes and cabins. Scott Kelling, northeast regional manager for DNR Parks and Trails, said the plans for the reconstruction of the landing are still being finalized, but insisted they will take into account the unique mix of recreational and commercial use of the landing, including use by all three of the barging companies that service customers on the lake. According to Kelling, the remake of the landing will include removal of the old pier and the reconstruction of a new one in nearly the same location. “The new pier will serve the same function,” said Kelling, and will include an additional ramp that will be dedicated for barge loading and off-loading. Kelling said an engineer’s inspection of the existing pier determined it was near the end of its useful life, although Schmidt said she thinks that opinion reflects the DNR’s desire to remove the structure rather than its actual condition. Kelling acknowledges that it’s not the only reason for replacing the structure. “With our redesign it’s just not in the right location,” he said. Adequate parking is another major concern of longtime users of Moccasin Point. Tim Logan, whose family has owned island property near the landing since the 1950s, said plans the DNR had shared a few years ago seemed to show less parking than is typically used at the site. Schmidt notes that during high-traffic weekends, the parking area is frequently full and overflow parking can extend for hundreds of feet along Moccasin Point Rd. She said she counted 163 vehicles parked at the landing at one point last Memorial Day weekend and said there are routinely 90-100 vehicles during the summer season. Many of the regular users of the landing, particularly those on island properties, use the site for long-term parking of their vehicles for days, weeks, or months at a time. That’s unusual at public landings, which are typically limited to day use. Kelling said the DNR is making an exception to that rule for Moccasin Point, given the many varied uses of the unique property. “Overnight parking will be allowed,” he said. Kelling said the current plan will allow parking for a bit over 100 vehicles, which is more than some original plans for the site. “We’re doing everything we can to maximize the parking there, at some considerable expense,” he said. Longstanding issues Kelling said the DNR’s plan for reconstruction is motivated by a desire to “manage the site more responsibly on a number of fronts.” The DNR acquired the site in 2008 and had planned to undertake reconstruction of the landing back in 2013 but lacked the funds at the time to accomplish the work. The funding was approved in 2023 and the DNR has been working on design of the project ever since. According to Kelling, the site has operated essentially as a “free-for-all” for years, with uses and resource impacts that aren’t typically permitted at DNR-managed access points. “There are currently a number of transgressions out there,” said Kelling, including long-term storage of personal property and building materials. He said the site, which slopes toward the lake, also contributes large amounts of sediment into Vermilion during heavy rainfall. “We need to better manage the stormwater,” said Kelling. “Currently, a lot of sediment and other things end up in the lake when it rains.” Schmidt questions whether the change will be an improvement, since the DNR’s reconstruction of the site will convert the existing grassy hillside that currently serves as the site’s parking lot into a paved parking area. Kelling said the parking area will be leveled before being paved and that stormwater will be directed into one of two planned stormwater ponds in order to contain sediment. Schmidt claims the ponds will become a mosquito breeding ground. Kelling said he expects the final design will be completed soon and he is expecting to hold an open house in early summer so interested users can see what’s planned for the site. He expects actual construction to begin sometime in October if all goes as planned. That initial work will include blasting of some underlying bedrock in order to level the site. But most of the work will take place in 2026, he said, and during that period, it may be difficult to maintain public use of the site, although he said use of the site by barges should still be possible, with potentially some minor delays. But he said other users of the site may want to explore other access options for that summer. Kelling said he hopes to have more information on that at the open house later this year. “A goal of the open house is to really share the timeline and alternatives for users,” he said. “They might need to park somewhere else in 2026.”
    • smurfy
      i wanna change mine to the 29th of april...........i've been seeing ice reports to much up that way. 🙄
    • leech~~
      Agreed, but I had a bit of a technicality and had to change.   You!  🤣
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