You will likely have heard people talk about fishing the Foam while fly fishing for trout, but what does that mean? Here I will explain and also tell you about a few other key areas where trout will hold. By learning the locations of the trout, you will certainly increase your catch rate. You should easily be able to analyze the stream and determine the most likely areas where the fish are sitting, if not; this article is for you.
Fly Fishing The Foam For Trout
The foam is merely bubbles in the river that are caused by various currents. You can easily determine the trout locations by watching where the foam is going and looking for areas where it is concentrated or funneled. The trout will watch these specific areas for a very good reason, and the largest trout in a run or riffle will most often be found in these areas.
Notice the foam in the picture left. It is concentrated in narrow strips after it comes in contact with the two logs. These areas are effective trout holding areas, not only because they concentrate the foam, but the insects as well. The foam and bubbles will be a red flag indicator that various insects will be floating along with it. As the current flows down river it will “funnel” most of the surface water into certain areas, within these areas will be a large supply of floating insects that the trout will be waiting for. This is a universal indicator of a good fly fishing spot. There are also other areas where you will find foam lines and “seams” that will hold large quantities of trout such as the convergence of two river channels.
Seams are a Good Fly fishing for Trout Area
Where Two river channels or currents converge is called a seam. These are easy to identify and will usually hold fish. You will find these areas to often also include foam and they will indeed contain insects that the trout are waiting for. To Identify a seam you will be able to see a visible line in the water that indicates the two separate currents coming together. In these separate currents converging they are concentrating all of the insects. The insects will not only be on the surface but below as well. These would be two great areas to try nymphing as well as dry fly fishing for trout.
Any time you see two currents coming together or the accumulation of foam you are likely looking at a good fly fishing area. Keep these in mind during every cast throughout the day and you will likely catch a whole lot more fish. There are of course times where fish will be found in riffles and pools with no visible foam lines or seams.
Fishing Riffle Water
While fishing in Riffles you might not have any visible seams, if this is the case you should systematically fish the entire riffle. You will likely find that the largest fish will prefer either the very top of the riffle, or the lowest area where it will possibly drop off into deeper water. These areas will allow two things for the trout:
The lower end of the riffle will allow quick access to deep water in case of a predator coming.
The highest spot in the riffle will give the biggest fish the first shot at all of the available food floating down.
By carefully starting at the lowest end of the riffle water and fishing your way toward the top, you will be able to hopefully catch most of the active feeding fish within.
Tips: Move slowly and carefully, make sure you hit all of the water in the riffle. These fish are sitting here to often intercept hatching insects, so the fish could be sitting almost anywhere in them. It also might take the fish a few drifts to even see your fly floating by, so cast multiple times to each area. Riffles are often fast and it would be easy for a fish to not see your fly the first couple drifts.
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