You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

Sign in to follow this  

Spotting fish vs fishing structure

Recommended Posts


When you go fishing, are you guys looking for fish on the finder and then fishing for them, or are you looking for potential fish holding structure? Can you even see walleyes if they are laying on the bottom, which they like to do. What about a color unit, will it show fish on the bottom? thnx

Share this post

Link to post
Share on other sites
Deitz Dittrich

To answer your question... Both...

For walleye, I do tend to look for fish on the depthfinder before fishing for them. Ad with a good eletronics you can see fish. Other times the bite may be better in the weeds, and often times you are fishing the area and unable to graph them first.

Sorry to be so vauge.. but.. again, the answer is both!

Share this post

Link to post
Share on other sites

Short answer, I fish structure. I can't count how many times I caught walleyes and never seen even one on the graph. But on the other hand there are days that you will see active fish up off the bottom a ways. But I will always fish a good piece of structure a while before leaving if I see no fish.

Share this post

Link to post
Share on other sites

I feel differently. I don’t necessarily believe it is beneficial to rely too much on sonar fish echoes. One of the reasons planer boards and long-line trolling can be effective is because they take advantage of how the fish tend to get spooked by the passing of the boat. How often is boat traffic blamed for poor fishing, and rightly so? If they move to avoid the boat overhead, they will not show up on your sonar screen but it doesn’t mean they have moved out of range. Those that pursue trout go to great lengths to avoid detection by what they wear, observing the sun’s location, where they cast their shadow, even stepping lightly on the ground. Other fish can be just as spooky.

Also, the area viewed by the cone angle of the transducer is so small that you are asking a lot to fish only where you might see them. I suppose motoring around for a while in an area to scan it for fish may show they are there or at least they were a moment ago. And certainly there are those occasions where the fish will return or perhaps not move at all and I have even experienced increased success by starting my outboard but I believe that in most cases one is more likely tipping the scales in his favor applying a little stealth.

I fish the structure but it can help decide how to fish the structure if you can see where the fish are. As upnorth pointed out, you may discover they are suspended or hugging the bottom and this may alter your attack. It’s using the tools to your advantage.

Below is a quick reference chart for the area covered by the specific transducer cone angles. For example, if you are fishing in 10 feet of water and the cone angle on your transducer is 20 degrees, the area viewed across the bottom is 3.5 feet and decreasing as you go up. A fish would have to be located within 1/12,445th of an acre to be detected. Good luck with that. Not seeing fish doesn’t mean they are not there.

• 12 degrees - 0.21 or roughly 1/5 of depth

• 20 degrees - 0.35 or roughly 1/3 of depth

• 24 degrees - 0.42 or roughly 2/5 of depth

• 30 degrees - 0.53 or roughly 1/2 of depth

• 40 degrees - 0.72 or roughly 3/4 of depth

• 50 degrees - 0.93 or roughly 9/10 of depth

• 60 degrees - 1.15 x depth

• 70 degrees - 1.4 x depth

• 73 degrees - 1.48 x depth

• 80 degrees - 1.68 x depth

• 90 degrees - 2 x depth

• 100 degrees - 2.38 x depth

• 110 degrees - 2.85 x depth

Share this post

Link to post
Share on other sites
This topic is now closed to further replies.
Sign in to follow this  

  • Your Responses - Share & Have Fun :)

    • Rick
      They knocked the Wolvies around a bit. 102-82
    • AlwaysFishing23
      What do y’all think a week from now? Will Duluth be fishable from the boat. A lot of ice around right now. Might have to wait yet rather stay around Duluth than drive another half hour to two harbors.
    • mulefarm
      Will Green be ice free for Govenors opener?
    • Bigfatbert
      Just make sure there are not any tiny , tiny little bloodsuckers attached to the fins , as they so often are up on these front fins ..  I don't mean to spoil ur appetite... like the cheeks ,these wings need to come from a larger walleye in order to get much out it ..
    • TomWehler
      Scaled n skin on after gut n de-head. Wash n batter n sizzle. Fork at Dorsel n whole fillet falls onto plate or butter bun or hounds mouth. : ). Mmmmm sooo good.      I dream melt ice at Nine inches per week starting today -  Pike bay be open day before opener clear out to Marauderville. Then Bonnie n I n Polar Bear do opener on Docks as per our tradition. Dreams are fun.   Then everyone wants to can enjoy the fever reducer that is our sweet Vermilion. Big Smiles. Maybe weekend after opener?  All good but just miss our lil chunk of paradise x million. An lake friends n nuts.  Think warm thinks!  Thanks for letting me post some n butt in on threads a bit. Still two feet of snow here n same ice an nothing to do outside easy.  Peace...     T
      Thanks guys for the information.  I will stop in at Fred's sometime this summer and say hello.
    • TomWehler
      Hi. Figured everyone did that. Hmmmm?  Life long pal Rene Franckuz Way Up end of road Red Lake Ontario showed me that lil yummy rid bit long time ago when we was both still young, he had hair n both loved BEER N BRANDY with anything 24/7. Called them Yanks! Nice videos to share. Try it you will like it. Mmmmm hungry!! Keep on Rocken!  T
    • rumeye
      Better known as North Dakota shrimp.  
    • leech~~
      well I never?  Here's another. May have to give that a try.    
    • Cliff Wagenbach
      Wakemup, I also like them scaled and the skin crispy but hate all of those scales every where so I fillet them with no skin. Cliff I have not heard any news about the City Auto Glass. Pike Bay will be open to fishing. Ice being off of it will be close! Cliff