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pikerliker

Sonars negative?

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I have a question for everyone. I am planning a Red Lake trip with a buddy in Early March. I happened to mention to him that I have a Marcum LX1 that I recently purchased. He told me that the group we are going with will not allow anybody to use them because they heard that the sonar negatively affects the fish bite. He claims that the fish will actually avoid the area where the sonar is in use. Have any of you ever heard of anything like this with Vexelars, Marcums, etc? I know they don't all avoid it because I have caught fish while using it, but is it possible that some fish are sensitive to the sonar and do either avoid the area or stop biting? I'm interested to hear what others have heard/experienced.

Thanks!

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Have a contest. See who catches more fish; you using your marcum or him not using a flasher. I guarantee he will change his tune rather quickly. You may not always outfish him with the flasher but 8 out of 10 times isn't too far of a stretch. I own a Vex but it is the same principle. Whenever I fish crappies with someone who doesn't have a flasher they are either constantly asking what depth they are at or trying to sneak a peek at my screen. Using your flasher will allow you to fine tune your presentation when fish are present while your friend has no idea when to change his presentation. I personally believe that some fish do not like sonar but it helps you catch more of the fish that are still there. Most people will say that sonar doesn't affect the fish though. There is really no possible way to see if more fish would bite if there was a flasher or if there wasn't because you cannot recreate fishing conditiions exactly using the flasher one time and not using it another. Take youe Marcum with and maybe you'll have some of them buying a flasher as soon as they get home. Good luck on your trip.

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Yes I have heard of that. What I was told is that the fish sense the sonar waves and thus they can avoid it. In other fish they are attracted it the sonar waves such as whales. I have a friend that swears that he catches more fish without his sonar than with one. In truth be told he does. HE catches more fish than those that have one and stay stationary. Now there are other factors involved as well such as acid in your sweat, time of day etc. It is an interesting notion though.

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Truth be told I'm not aware of any studies of the manner that show that the use of sonar have a negative effect on fish.

All I know is that you won't see me out there without one. But if you're fishing in his house you need to follow his rules I guess.

But I'd still bring one along. If the weather is nice some exploring would be in order. Bring your sonar for that.

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I have heard that to but the truth is that I have caught enough using on that I will never change. As a matter a fact I am so use to using it now I would be lost without one. I to have never heard of a study to proove this so I assume it isn't true.

------------------
Grip it and Rip it

IFFWalleyes
I Fish For Walleyes
[email protected]

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I won't fish w/o mine that's for sure. But red lake is real shallow from what I've heard. Yup do the test. Go explore and bring it along. Lettus know how it went.

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I won't fish w/o my vex, but try this sometime in the summer.

Stick you xducer off the dock, and swim underwater. You can feel and hear it. If a human can feel it, the fish sure can. That said, I have never felt that the sonar is spooking the fish.

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I turned on both the FL-8, and the Marcum side by side at the store. The marcums transducer is very loud. I don't know how this would affect the fish. I bet it could. Maybe attract them some days, maybe scare them others. I have an FL-8. I won't fish without it. I won't switch to anything else.

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I think the only way to really test it is in the water. Take a FL-8/FL-18 and a Marcum out on the ice. Get a good underwater Zercom camera and wait until the fish come in, turn a unit on and see if they react. If not, try the other unit right away. No reaction, this is all talk.

My guess is this is all hogwash. Too many people catch fish in the winter for there to be something to it. And too many people without sonar go home skunked. I think the advantage of knowing where the fish are in the water column and testing their reaction to different jigging techniques far outweights the remote prospect of fish hearing noise on any of the units.

Fishface. I have a homework assignment for you. Get out your FL-8 and go to your sons aquarium with the fishies in it. Put the transducer in the water and see how they react. If they don't react in the small confined area of a 20 gallon aquarium, they won't notice in the lake. P.S. You still catch more crappies than anyone I know and you use a sonar. If this is true, they would have to outlaw you from the lakes if you quit using a sonar. smile.gif

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Piker,
Vexlar and Marcum would be out of business if they didn't work. I've crushed other fishing partners (cheeseheads) who were to cheap to purchase one. They couldn't stand it, so they finally coughed up the dough bought their own. I'd be willing to bet that you'll catch more fish than scare off.

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Well theres no way they effect the fishing in a negative way. We caught tons of fish on Red last week with both Marcums and Vex's.

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hey canvasback kid was that next to the article about the japanese fishermen caught a mermaid in thier nets ...sadly they were starving so they smoked her then eat her...

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if fish can feel or hear sonar, they must like it, because I seem to catch many fish.

was using my marcum last weekend, and the gills were going absolutly nuts, I didn't even have time to drink a beer the bite was so fast.

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I fished Red Lake on Thursday, Friday and Saturday. Out of the group of five, I was the one with the Vex. I was the only one fishing outside the house and moving around. I also fished inside the house. I got about 20 perch, 12 walleyes and about 25 crappies. The other guys got about three walleys, a couple of perch and TWO crappies. I got more fish than all the other guys and I think it was because I use the Vex to know what the fish are doing when they come in. I did work harder than the other guys but I think the key was the Vex.

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I feel that I have definitely caught more fish than missed do to the use of a flasher.
Won't leave home without it.
But one must go with the house rules.

I'd bring my portable just in case.
Maybe next trip you'll be making the rules!!

Regardless hope you guys rip lips,

Crusher
0.jpg

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At least now I have another excuse for the next time I get skunked......"darn fish musta heard the LX-3......"

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hey Pickliker
I think your buddies are just rationalizing an excuse to level the playing field. They are likely too cheap to buy a flasher or have not used one.
I'd watch my backside to avoid any more smoke being blown up your butt from these boyz.

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Just because you catch fish does nt mean that the use of a sonar negatively affects your fishing outcome. for one study goto www.biology.uky.edu/../yan/amyscholik-v2pdf. If there was not a negative affect of sonar on fish life I do not beleive that there would be a marine mammal protection act or other various groups that are protesting vigoursly against the navy's sonar, trollers sonar, and other's use of sonar. I am not saying that it is wrong to use sonar, I use one everytime I go out--I want to be informed about my decisions and are there things that I could do while enjoying fishing that would be helpful not only to me but to the fish as well. We are all part conservationists when it comes to wanting to fish for life. sorry about the length.

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If you want to annoy a friend or spouse, play a little game with your sonar. I use an eagle LCD, that has a demo mode, for ice fishing. When I was having trouble with it, I had it in the house on simulator. It was funny to watch the reactions of the wife and dogs when I'd point the sonar's directly towards their ears. The dogs would shake their heads and scratch their ears and all that. I set it up where I could test it for myself and when I walked into the peak of the transducer, the sound was piercing. It actually hurt a little. I apologized to my family for playing the trick on them. That said, I do think that fish can hear the sonar if they are directly under the center of the cone, but it won't really bother them unless they turn to the side and take the brunt of it on the ear drum. Otherwise it's just a minor tick, tick, tick and probably not noticable under a few feet of water.

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If fish can hear it, which I think they can, I don`t think it bothers them enough to turn them off of the bite. If you want to catch fish, then your electronic should be on ice not at home. I think your friends just don`t want to be out fished. I use a LX-3 and had fish in 5 feet of water and they didn`t care. I think it more hipe than anything else.

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Just an update for everyone. I used my Marcum today in about 7 ft of water and had fish under me all day. I caught my limit of sunfish and threw back more than I kept. I also had a big ugly bullhead to throw in. They didn't seem put off by the Marcum at all. I'll let you know how Red Lake goes.

~Piker

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Hey guys just got back on Sunday from my trip to Red Lake. I went up with the crew on Friday and didn't use my Marcum until Saturday night around 9ish. The bite had been very slow and the guy who owned the house said he didn't mind if I used my sonar. After marking fish and trying different jigging techniques I caught 3 nice slab crappies in a row and missed a 4th all while the other guys went fishless. Needless to say I had to rub it in a little bit about how "these things scare the fish away"! I ended up tying for the most fish in the house for the weekend all while using my Marcum. Just thought you'd want to know!

Later ~piker

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The sonar I use in the summer has five times the power that my Vex has. I should never be able to get near a fish with it. Maybeeee that is the reason. LOL

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STAY ON TOP

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      Channel Catfish - Good: Numbers of fish are being caught trolling. Don’t overlook public areas to fish using traditional "cat" baits which will provide excellent action.  Lake Pahoja
      Bluegill - Good: Recent surveys show good numbers of large angler size fish in the lake.  Little Sioux River (state line to Linn Grove)
      Channel Catfish - Good: Report of angles catching fish from the river.  Lost Island Lake
      Yellow Bass - Good: Reports of yellow bass being caught with black crappie and yellow perch up to 10 inches mixed in the catch. Use small lures such as a twister tail or hair jigs. Bluegill - Good: Recent surveys show numbers of fish approaching 7 inches in the lake. Black Crappie - Good: Recent surveys show numbers of angler acceptable size fish up to 10 inches in the lake.  Ocheyedan Pit #1
      Channel Catfish - Fair: Recent surveys show good numbers of 17 -23 inch channel catfish.  Silver Lake (Dickinson)
      Walleye - Good: Expect the fall walleye bite to start soon. Troll crankbaits during the day; wader fishing is your best chance to catch trophy size fish.  Spirit Lake
      Walleye - Good: The fall walleye bite has started with action improving. Yellow Perch - Good: Good numbers of angler acceptable size yellow perch continue to be caught in the outside line of the weed beds. Bonus bluegill will be mixed in the catch.  West Okoboji Lake
      Bluegill - Good: Rock piles in deeper water with stands of aquatic growth will produce good numbers of angler acceptable sized fish.  For more information throughout the week, contact the Spirit Lake Fish Hatchery at 712-336-1840. 
    • SOUTHEAST IOWA FISHING REPORTS Big Hollow Lake
      The unstable weather isn't helping the fishing or the number of anglers out on the lake.  Black Crappie - No Report: Start looking for crappies in 6 feet of water. Bluegill - No Report: Bluegills should be moving in to more shallow water soon. Start at 6 feet and work your way in from there.  Deep Lakes
      Grab a pole and go exploring at Deep Lakes; there are lots of ponds to try. Largemouth Bass - Fair: Most of the ponds have good numbers of bass in them; most are smaller, but there are some big ones. Go subtle in your choice of lures with the ultra-clear water. Bluegill - Good: Find the right pond and you can catch some nice bluegills.  Iowa River (Columbus Junction to Mississippi River)
      The Iowa River still has a lot of flow right now, but is currently back down in its bank with only some low area flooding; it looks to be headed back up.  Lake Belva Deer
      Water warmed up over the last days to around 78 degrees again. The cooler weather forecast should reverse that trend. Black Crappie - Fair: Last week was pretty slow;  crappie should start biting again with the water getting back to normal and cooling off. Channel Catfish - Fair: Should still be able to pick up a few catfish up by the inlet from the marsh. Largemouth Bass - Fair: Picking up a few bass in the more shallow water up along the rocks and gravel bottom areas.  Lake Darling
      The water temperature is back up to about 79 degrees. Water clarity is improving despite more heavy rains earlier this week. Fishing, while still pretty good, is a little more hit and miss due to the weather.  Bluegill - Good: Decent numbers of hand-sized bluegills are being caught in 5 or less feet of water. Water still hasn’t cleared up after last week’s heavy rains. So a little flash to any lure is a good idea. Channel Catfish - Good: Anglers continue to catch catfish. It’s a good time to fish the weirs in the in-lake silt dams as the water from the recent and forecast rains come into the lake. Largemouth Bass - Good: Bass are hovering over the rock piles in about 5-8 feet of water. Spinnerbaits and spoons work best.  Lost Grove Lake
      Water temperature was 78 degrees on Wednesday; the storm may have cooled it off more since then. Black Crappie - Fair: Anglers are still catching crappies out deep, but if the nights stay fairly cool, they should start to move in to shallower water. Largemouth Bass - Good: Run your favorite crankbait on the north side of the lake, out along the mounds on the flats and in shallow.  Skunk River (Coppock to Mississippi River)
      The Skunk River is back down to about 1/2 bank full. The parking areas and lanes to them are still muddy.  For more information on the above lakes and rivers, call the Lake Darling Fisheries Office at 319-694-2430. Central Park Lake
      The lake is close to full after the renovation project; fingerling fish have been stocked.  Coralville Reservoir
      The lake level is at 705 feet (normal pool is 683.4 feet) and slowly falling as of 9/20. All public ramps are under water and the Mehaffey ramp is closed due to construction.  Diamond Lake
      The water is muddy. Black Crappie - Fair: Try small jigs fished over deeper brush. Most fish are 8-9 inches. Channel Catfish - Good: Stink bait works best. Some limits are being reported.   Iowa Lake (Iowa County)
      Largemouth Bass – Slow. Channel Catfish – Slow. Bluegill – Fair. Black Crappie - Fair: Fish in 12-15 feet of water and look for fish suspended a few feet off the bottom.  Iowa River (Coralville Lake to River Junction)
      Catfish were biting at Hills and River Junction before the flows bumped up to 10,000 CFS. Flows will continue to be this high until the Coralville Reservoir is back down to normal, which could be weeks.  Kent Park Lake
      The lake is currently drained for a lake restoration project.  Lake Macbride
      The motor restriction is off; any sized motor may be used at no-wake speed (5 mph). Black Crappie - Fair: Use jigs or minnows around brush; some fish are reported as moving shallower. Walleye - Fair: Troll crawlers or crankbaits in 7-14 feet of water. Largemouth Bass - Fair. Wiper (Hybrid Striped Bass) – Fair: Try topwater baits early and late then troll during the day. Channel Catfish - Fair: Try cut bait or stink bait. Evenings are best.  Pleasant Creek Lake
      The lake is still 1.5 feet low. Use caution on the lake, as many of the new rock and wood structures are becoming submerged. There are 2 docks in at the main ramp and the fish cleaning station is open.   For more information, contact the Lake Macbride Fisheries Station at 319-624-3615.   Lake Keomah
      Bluegill - Fair: Use small jigs tipped with live bait near shore and around the fishing jetties. Black Crappie - Fair: Use a jig tipped with a minnow around deep structure. Try different depths until you find active fish. Channel Catfish - Fair: Use stink bait or chicken liver in 4-8 feet of water. Largemouth Bass - Fair: Try spinnerbaits, crankbaits or rubber worms around the fishing jetties and along the dam.  Lake Miami
      Largemouth Bass - Fair: Try topwater lures in the early mornings and evenings then switch to rubber worms or crankbaits during the hotter parts of the day. Target the cedar tree piles and the fishing jetties. Bluegill - Fair: Use a chunk of night crawler along the fishing jetties or around the cedar tree piles.  Lake Sugema
      The south boat ramp off of Highway 2 has been reopened. There is now a construction project on the north ramp. Largemouth Bass - Fair: Use topwater lures in the early mornings and evenings. As the day progresses, target deeper structure using rubber worms or deep diving crankbaits. Black Crappie - Slow: Crappies are suspended. Try drifting minnows around the flooded timber at different depths to find active fish. Bluegill - Fair: Try live bait tipped on a small jig around the shorelines and fishing jetties. Keep moving until you find active fish.  Lake Wapello
      Channel Catfish - Fair: Use chicken liver or stink bait. Don’t fish too deep as the lake does stratify; target 6-8 feet of water. Largemouth Bass - Good: Use rubber worms or crawdad imitating crankbaits around deep structure. Try also topwater lures around the cedar tree piles in the morning. Bluegill - Fair: Try small jigs tipped with a chunk of night crawler around aquatic vegetation. Black Crappie - Slow: Try jigs tipped with a minnow in 6-10 feet of water.  Rathbun Reservoir
      The current lake level is 906.10 msl. Normal operating elevation is 904.0 msl. Lake Rathbun has zebra mussels, so make sure to properly drain, clean, and dry equipment before transporting to another water body. Channel Catfish - Good: Use stink bait or chicken liver in coves or areas with some water running into the lake. White Crappie - Fair: Try minnows around deeper structure. Trolling small crankbaits can also catch suspended crappies. Crappies will start to move shallow as the water cools. Wiper (Hybrid Striped Bass) - Fair: Troll crankbaits along rocky shorelines and around rock piles. Follow the gulls as they will be where the schools of hybrid striped bass are feeding. Try also vertically jigging spoon baits around rock piles. Walleye - Fair: Use night crawler rigs or troll crankbaits around rock piles and submerged points.  Red Haw Lake
      Largemouth Bass - Good: Cast the shorelines in the early part of the day and then fish deeper structure as the day warms up. Use rubber worms or crankbaits. Topwater lures can be productive along the lily pads. Black Crappie - Fair: Try tube jigs along the shorelines. Bluegill - Fair: Use small jigs tipped with live bait around the shorelines and fishing jetties. Channel Catfish - Fair: Try night crawlers or chicken liver around the fishing jetties and the outer edge of the lily pads.  The district includes Mahaska, Lucas, Wayne, Monroe, Appanoose, Wapello, Davis and Van Buren counties. Contact the Rathbun Fish Hatchery at 641-647-2406 with questions about fishing in south central Iowa.   MISSISSIPPI RIVER  FISHING REPORTS Mississippi River Pool 16
      Tailwater stage is 10.36 feet at Lock and Dam 15 in the Quad Cities, but is forecast to reach 12.5 feet by the middle of next week. Flood stage is 15 feet. As of Sept. 19th, the Clark's Ferry boat ramp was still closed due to high water, but the ramp at Shady creek is open. The docks have been pulled out at the Fairport Recreational area due to high water. Fishing has been slow.  Mississippi River Pool 17
      Tailwater stage is 10.31 feet at Lock and Dam 16 in Muscatine and is forecast to rise over the weekend. Flood stage at Lock and Dam 16 is 15 feet. River stage at Muscatine is 12.14 feet, but forecast to reach 13.2 feet by the middle of next week. Flood stage at Muscatine is 16 feet. The Kilpeck Landing is closed. Big Timber is also closed due to high water. Fishing has been slow.   Mississippi River Pool 18
      Tailwater stage is 12.57 feet at Lock and Dam 17 above New Boston and has been falling the past week, but is forecast to rise over the weekend. Flood stage is 15 feet at Lock and Dam 17. River level at Keithsburg is 12.52 feet and is forecast to reach 13.1 feet by the middle of next. Flood stage at Keithsburg is 14 feet. The Toolsboro access is inaccessible due to the Odessa road being flooded. Ferry Landing is closed. Fishing has been slow.   Mississippi River Pool 19
      Tailwater stage is 9.43 feet at Lock and Dam 18 and is forecast to start rising over the weekend. Flood stage is 10 feet. River level at Burlington is 14.63 feet and is forecast to start rising over the weekend. Flood stage at Burlington is 15 feet. Fishing has been slow with the high water.   River stages have been falling the past few days. With recent heavy rains, the river is forecast to start rising over the weekend. Some boat ramps are closed due to high water. Main channel water temperature is around 73 degrees. Water clarity is poor due to high water conditions. Fishing has been slow with the high water. If you have questions on fishing Pools 16-19, contact the Fairport Fish Hatchery at 563-263-5062.
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