Journal

Understanding How Trout Feed and the Importance of Presentation….

There is a belief held by many that Smoky Mountain trout are among the most difficult to catch. Talk to a few Smoky Mountain anglers for any length of time and at some point, someone will say, “If you can catch them here, you can catch them anywhere!” That’s not entirely true. Simply driving a little north to the Clinch will teach you that. Employing Smoky Mountain fishing tactics on that big tailwater may reap rewards in a few areas, but the long, slick waters of the Clinch will require different skills to be consistently successful. Almost every fishery has certain characteristics and little quirks that make it uniquely challenging.

But this much is true. If you are catching fish in the Smokies on a consistent basis and understand why and how you’re catching them, applying those skills to other freestone rivers, such as those in the American West, will put you a step ahead of many anglers. But why? What is it about these little mountain streams that is so challenging?

First, you typically have a significant volume of water in a small space. Rather than water flowing through a broad basin, where current speeds are somewhat consistent and concentrated in long, broad channels; in these small streams, the flow breaks and changes speed dramatically with every boulder it hits. So in many situations, in one fishy run, there may be fifteen different current speeds with which to contend. That may not be a big deal if you understand how that phenomenon can impede drift and you can approach those runs properly. Failure to understand this can convince many an angler that there are no fish in these streams!

I’ve seen a number of VERY good fly fishermen come to the Smokies and get skunked. In most cases it is because they are big river fishermen and they approach these streams in the same way they approach the big rivers they normally fish. That usually entails standing erect at the bottom of a run and making a 40-60 foot, up and across cast to the top of the run. The result is 40-60 feet of line being grabbed by fifteen different current speeds, and an attached fly dragging like RuPaul!

All but the smallest and dumbest fish in the Smokies will not tolerate a poor drift, and with the exception of the rare slow pools, there is no way you’re going to be able to cast that much line and be able to control your drift. Executing a good drift in the Smokies is going to require getting closer to the fish.

First, it is important to understand where the fish will be and why. You can find fish in the slow pools but these are among the most difficult to target. Without a defined channel to concentrate food, fish in these pools are very spread out and often cruising, feeding opportunistically. Unless there is a significant hatch coming off to motivate consistent feeding and reveal fish when they break the surface for a meal, catching them in these environments is going to require a lot of patience, a lot of trial and error, and a lot of plain dumb luck. This is certainly not to say you can’t catch fish in slow pools in “hatchless” situations, but the odds are not with you.

For heavier concentrations of actively feeding fish, you should be in the riffles and runs where there are clearly defined channels. The stream funnels insects and other food items into these channels, and where you find food, you find fish. And in these food abundant areas, fish are typically “holding,” waiting for the meal to come to them. But because there is so much “stuff” coming through these chutes, from aquatic insects to stream debris, the fish instinctively ignore passing items that don’t look like food. Your imitation dragging through the feeding zone faster than the current because another current is pulling on your fly line, qualifies as something fish will ignore. To control the fly you have to control the line. In order to control the line in a run with multiple currents, you have to get closer.

To get closer, you’ll want to employ the strategies discussed in Part 1 of this article. Dress accordingly, stay low, and be stealthy. The idea is to get into a position where you can use the length of your rod to keep the fly line out of any currents other than the one where your fly is. So you’re keeping the rod high, keeping most, if not all, of the line off the water so that there is very little to impede the drift. By following the fly with your rod tip, you can extend your drift through the run. There are going to be a number of these little feeding zones within a run. Hit the first one, reposition yourself, hit the second one, reposition yourself, and so on.

Check out the photo above – a typical stretch of water in the Smokies. You can easily see the numerous changes in current speed and direction in just this small area. Rather than standing at the bottom right of the photo and casting 40-50 feet to the top left of the photo, our angler is intelligently breaking this stretch into defined sections. He has likely already fished the water below, to his left, and right in front of him. Notice his rod is high, keeping the line off the current directly in front of him. The fly should drift nicely in the current breaking around the right of the boulder. Next, he will likely step up to the boulder and fish that large pocket above it. Well done!

The angler in this photo is also doing a good job with a little more line out. Notice he is concealing himself behind a boulder. He’s holding his rod upward, keeping the current lip in front of him from grabbing the line. The line that is on the water is all in the same current speed. Again, well done!

He likely fished the current below that boulder before stepping into that position. It’s all about planning your attack. Determine your targets and carefully place yourself in the proper position before casting to them.

Setting the Hook

Fishermen in the Smokies also miss A LOT of strikes. Some of the misses can be attributed to the fact that trout in the Smokies are fast! They hit and spit a fly with amazing speed. You can just go on and plan on missing some strikes when you fish here. And you can plan on getting hung in a few trees. It’s all part of it!

But you can greatly increase your number of hook-ups by implementing the above strategies. Many anglers miss strikes because they’re not ready or they react too slowly. Just as many anglers miss strikes because they have too much line on the water. The more line you have out, the more line you have to move and tighten to set the hook. And when that line has a lot of slack in it, there will be even more delay.

It’s a delicate balance. In most cases, you have to have a little bit of slack in your line to allow your nymph or dry fly to drift without drag. Keeping that slack to an absolute minimum will allow the rod tip to lift and tighten the line on the fish much more quickly and will certainly result in more fish to hand.

Understanding a Trout’s Vision and Instincts for a Better Approach….

On numerous occasions guiding clients in the Smoky Mountains, I have been met with a suspicious and doubting eye when I provide certain instruction regarding approaching and presenting the fly to wild mountain trout. The reply is often something like, “Are they really that smart?” No, trout aren’t that smart. They have the brain the size of a pea. But the fact that they aren’t that smart is what allows them to be so good at what they do. Unlike us more “intelligent” humans, trout aren’t distracted by health care reform. They don’t watch college football or pay the mortgage. And they don’t care who got voted off American Idol last night. Their entire existence is ruled by instinct. Their only real concerns are receiving enough oxygen, eating, and not being eaten! When your life is that simple, it allows you to remain pretty focused.

Think about a simple housefly for a moment. Trying to catch one is difficult. A housefly isn’t smart. It’s not planning out evasive maneuvers in the event of a human attempting to catch it. First I’ll cut right, then I’ll go up, then I’ll get behind the blinds at the window…. It’s pure instinct. Survival. Something we humans have to go through rigorous, repetitive training to achieve.

One of the biggest mistakes anglers make when approaching fish is doing so from upstream. To a trout, a stream is a conveyor belt of food. It constantly delivers hatched aquatic insects and terrestrials on the surface and juvenile aquatic insects (nymphs) between the surface and the bottom. Trout aren’t looking down the conveyor belt to see what they’ve missed. They’re looking up the conveyor belt to see what meal is coming next. If the trout see something suspicious at the top of the conveyor belt, like you, they’re going to likely quit feeding until they feel safe again. They may even go hide!

So the trout knows I’m trying to catch him? No! But you spooked him. Think about a situation when your senses were heightened. Maybe you’re walking alone late at night on a dark street and you hear a strange noise up ahead. Is it the wind? A stray cat? Another person? A serial killer? You don’t know, so what do you do? Do you race up ahead to check it out? Do you ignore it and keep on as if nothing happened? You would probably stop doing what you’re doing and assess the situation. You might even turn around and go the other way. It’s the same thing if something disrupts a trout’s comfort zone while they’re feeding.

Another interesting way to look at it is if you take the dark street scenario described above and insert a thirteen year old rather than an adult. Due to limited life experiences and a feeling of invincibility, the thirteen year old may proceed with less caution, if any at all. Now you know why big (old) fish are harder to catch than small ones!

You’ll be far more successful if you approach the fish from downstream and cast upstream. This puts you behind the feeding fish where you are less likely to be detected. Notice I said less likely. You can still alert fish to your presence by making a lot of commotion through careless wading. When possible, stay out of the water or right on the edge. When you do enter and move through the water, do so quietly and deliberately. Stomping along the stream bottom and/or splashing through the water will produce excessive vibrations, again alerting the fish to possible danger.

You also want to keep a low profile to remain unseen by the fish. So trout have eyes in the back of their heads? No, but to an extent, they can see things behind them. Trout are predators and prey, and their vision benefits them in both roles. Like humans, they have binocular vision that allows them to see straight ahead underwater. Because of the placement of their eyes, they also have an extended range of peripheral vision, allowing them to see things on either side of them. They use this vision to look straight ahead and to each side. Consequently, there is little distortion and it’s very clear. It’s similar to how we see under water.

But trout also have a cone-shaped field of vision above them that allows them to detect predators from above. Because of the distortion caused by light refracting as it hits the surface of the water, trout are unable to clearly make out objects, so this is used to visually detect movement more than anything else, such as a Kingfisher swooping down to get them.

It’s the same as if you were to lie down on the bottom of a swimming pool and look up. You can see objects but the distortion makes it difficult to differentiate between a person and a tree. But you can pick up movement. However, something that is right on the surface, like a mayfly dun, is clearer to the trout than something above the surface, like a bird. At least the silhouette is much more distinct. This ability is highly effective for feeding on adult insects and terrestrials.

As you’ll notice in the poorly illustrated drawing above, that field of vision does extend a little behind the trout – upward and outward. The fish can detect everything that makes its way into the cone. So, when approaching a trout from behind, how close you are determines whether or not you’re in that cone of vision. Notice however, that a short object can be directly behind the trout and unseen while a tall object would be in the field of vision. This is why many successful Smoky Mountain anglers crouch or squat when closely approaching fish. The lower profile keeps them out of the fish’s “window.”

The other thing you should consider is the type of water you’re fishing. The faster and more broken the water is, the more difficult it will be for the trout to detect you, making it easier for you to get closer to the prey. On the other hand, trout in the slower, flatter runs and pools are going to be able to detect you much more easily and may require you to stay back a little more and put a little more distance on that cast.

In any situation, the more you can conceal yourself, the more successful you will be. Stay low. Wade slowly and quietly. Hide behind rocks and boulders when you can. And for God’s sake, leave the bright orange, hot pink, neon yellow clothing at home. Don’t worry about dressing in full camo with twigs and branches in your hat to catch fish here. Just dress in earth tones. Wearing browns, olives, khakis, and greys will go a long way toward not scaring every fish before you even make a cast!

Check back soon to see Part 2 of this series about how trout feed and how to effectively present your fly.