You know this topic got me researching again on the subject about “fish dissolving hooks” and I am beginning to think I was wrong. I have not found any documented study yet, but from my initial readings its starting to sound like one of those myths that just gets turned into fact over the years.
I am going to be doing some more reading and I will post some real studies when I find them....
Thxs Big B Muskie and 5 X Master Angler for motivating me to check into this further!
You weren't kidding about researching! Thanks for posting these for others to be informed!
Re: DOES HOOKS DISSOLVE IN FISH
« Reply #2 on: Feb 16, 2013, 08:07 PM »
Quote from: firefighter on Feb 16, 2013, 06:11 PM
I do some recreational scuba diving in Manitoba and NW Ontario. Not uncommon to find lures that have been snagged and lost. They tend to corrode very quickly IMO...likely even faster in a fishes mouth
FF
I used to think the same and now I really question that line of thinking with more and more studies such as these surfacing:
The Effects of Catch-and-Release Angling on the Growth and Survival of Juvenile White Seabass Captured on Offset Circle and J-Type Hooks
http://www.pier.org/scientific_publications/aalbers%20et%20al.%202004.pdfCapture Efficiencies of Two Hook Types and Associated Injury and Mortality of Juvenile Muskellunge Angled with Live Baitfish
http://www3.carleton.ca/fecpl/pdfs/NAJFM-Ostrand%20et%20al%202006.pdfPhysiological Impacts of Catch-and-Release Angling Practices on Largemouth Bass and Smallmouth Bass
http://www3.carleton.ca/fecpl/pdfs/C%20and%20R%20LMB%20SMB%20MS.pdfAn anaysis of the effects of hooks on striped bass when let embeded in the pharyngeal and gastric region
http://web.vims.edu/GreyLit/MDNR/HooksInBass?svr=wwwHere are some other interesting articles:
Hooks In or Out?
http://www.bassdozer.com/articles/manns/hook_in_out.shtmlHere is an excerpt:
"The recommendation that anglers cut the leader close to the hook when bass are "deep-hooked" is a good example. It is hard to find a publication on catch-and-release (C&R) techniques that doesn't pass on this poor advice. Yet, recent research on release techniques strongly suggests there is a better way.
Some years ago, Doug Hannon noted that most magazine articles and state publications recommend leaving hooks in bass and other fish to "rust" out. He claimed that hooks don't rust fast enough, even in salt water; and suggested that the shank of a hook pointing up the throat of a bass acts like a lever or trap door that prevents swallowing. Bass can die of starvation while waiting for normal body processes to eject the hook. Food coming down a bass' throat will bypass a hook-shank, IF the shank lies tightly against the side of the throat where the barb is lodged. However, if the shank protrudes into the throat, food coming down can push the shank across the esophagus, blocking it. Deep-hooked bass may even feel pain as the food rotates the barb and regurgitate the food. Recently, Hannon's observations have been scientifically verified. John Foster, Recreational Fisheries Coordinator for the Maryland Department of Natural Resources, studied striped bass at Chesapeake Bay. His researchers held throat-hooked stripers between 16- and 28-inches long for observation in half-strength seawater so that hooks had ample opportunity to rust away. Size 1/0 and 2/0 stainless steel, bronzed, nickel, tin and tin-cadmium hooks were hooked in the top of each fish's esophagus, with an 18-inch length of line connected to the hook.
After four months, 78 percent of the hooks were still imbedded. Cadmium coated hooks poisoned 20 percent of the fish, and production of these hooks has been stopped. Bronzed hooks were less likely (70%) to be retained than tin-cadmium (80%), nickel (83%), or stainless steel (100%) hooks.
In a second test, the line was clipped at the eye of the hook, as advised by most existing C&R guides. One-hundred percent of the stainless hooks were again retained, while 56 percent of tin, 76 percent of bronze, 84 percent of tin-cadmium, and 88 percent of nickel hooks remained. Fish mortality was greater when all line was trimmed. Foster theorized that the lengths of line hanging from a fish's mouth kept the hook-shank flat against the side of the esophagus and allowed food to pass. Without the line, food could move the hook and close the throat.
Hooks rusted slowly in stages, and the bend and barb became smaller very gradually. Stripers formed scar tissue around imbedded hook points, a typical reaction of body tissue to foreign matter. Foster noted, however, that once the tough scar tissue formed, hooks became more, not less, difficult to remove. Months after fish were hooked, infections sometimes developed around points, causing some deaths.
Based on his research, Foster recommended anglers carefully remove even deeply imbedded hooks. If the hook can not be removed, then it seems better to leave about 18 inches of line attached. Perhaps, someday, these findings will reach C&R anglers, the biologists who are researching C&R and publish C&R guidelines, and TV anglers who teach by their example. "
Catfishing Radio - Will Hooks Rust Out Of Deep Hooked Fish
http://www.learntocatchcatfish.com/will-hooks-rust-deep-hooked-fishAudio version:
http://media.blubrry.com/catfishing/traffic.libsyn.com/catfishing/catfishingradioepisode21.mp3Through-The-Gill Hook Removal
http://archives.in-fisherman.com/content/through-gill-hook-removalHow to catch and release properly
http://anglingunlimited.com/fishing/catch-release-properly/Leave Hooks In Fish?
http://www.nesportsman.com/articles/article11.shtmlTHOSE HOOKS DON’T RUST OUT!
http://www.724outdoors.com/Staff/hooks_don%27t_rust.htmREMOVING HOOKS FROM DEEP HOOKED FISH
http://centennialbass.homestead.com/files/fishhook.htmHook removal technique
http://www.lakesidesmallmouthbassclub.com/hook.htmlDehooker Testimonials
http://dehooker4arc.com/testimonials.cfmIf you don't have time to read all the links (I know I didn't read everything, but skimming is fun too) checkout the Audio Version of Catfishing Radio where he mentions the studies and touches on some of the other links briefly.
Logged
