Water speed at different depth

[ryansheehan]

I've always known that the water at the bottom was slower than the surface water. Whenever nymphing I'm very focused on speed. I came across a video that shows just what a difference the different levels make. It's the coolest demonstration I've ever seen. The part I'm talking about is 13 seconds in, it is a tik tok video but it's well worth a look.

Here

 

[dudemanspecial]

Link doesn't work for me, I guess you must have to have TikTok account which I don't.

 

[krayfish2]

I clicked on it and now I'm getting LinkedIn emails!

 

[Broodstock]

here is a screenshot of the important part. the ribbons on the top are pointing downstream. the ribbons on the bottom are wavering, and the one on the very bottom was sort pointing sideways or upstream, looking to be in the eddy of a rock upstream of it

 

[troutbert]

What's the practical fishing implication of this?

 

[ryansheehan]

What's the practical fishing implication of this?

The implication for me is things are slower and more erratic near the bottom than I ever imagined. The pink ribbon that's closest to the bottom had a number of slow directional changes. It would move very slightly downstream than very slightly upstream.

The other thing it's got me thinking about is the impact of the line moving through the water column has on the flies speed. Again, I knew it some impact but the difference in speed is so much more than I ever imagined.

I already feel like I nymph my flies pretty slow but after seeing this I may step it up and try even slower.

 

[ryansheehan]

I clicked on it and now I'm getting LinkedIn emails!

Lol, damn TikTok!

 

[PaScoGi]

I dont have Tik Tok but Im guessing it was taken from The Underworld of Trout or some similar titled video I saw on YouTube years ago. It was a nice documenatry that showed a lot of cool stuff in the footage

 

[JimNovo]

What's the practical fishing implication of this?

Absolutely nothing if you fish dry flies….

 

[JimKennedy]

Absolutely nothing if you fish dry flies….

Do you want to fish with dry flies, or do you want to catch trout?

Don’t tell me about the vast skills needed to get a proper float on a two dimensional surface when the drag implications are literally exponentially greater when you actually try to put your fly where the trout spend 90 or more percent of their time: on the bottom.

 

[JimNovo]

Do you want to fish with dry flies, or do you want to catch trout?

Don’t tell me about the vast skills needed to get a proper float on a two dimensional surface when the drag implications are literally exponentially greater when you actually try to put your fly where the trout spend 90 or more percent of their time: on the bottom.

To answer your question…. I want to catch trout with dry flies. For me, it’s not the number of fish I catch, but how I catch them that matters.

Sorry if that offends you.

 

[jifigz]

Do you want to fish with dry flies, or do you want to catch trout?

Don’t tell me about the vast skills needed to get a proper float on a two dimensional surface when the drag implications are literally exponentially greater when you actually try to put your fly where the trout spend 90 or more percent of their time: on the bottom.

Maybe he wants to fish dry flies and catch trout. To each their own, man. But to catch fish on dry flies, one must fish them.

I like catching trout in a variety of ways. Nymphing with a mono rig has to be about the easiest way to catch trout I've ever tried. I wouldn't say it requires much skill, either. If you're handy with a rod, understand fish, and can read water, it's stupid easy..

 

[discomidge]

How in the heck did a post about a video about fishing subsurface turn into a discussion about fishing on top. Internet, FTW. It's the old "so you hate waffles" phenomenon.

 

[discomidge]

I'll just add that that clip of differing speed in the water column is cool and useful. Thanks

 

[dudemanspecial]

How in the heck did a post about a video about fishing subsurface turn into a discussion about fishing on top. Internet, FTW. It's the old "so you hate waffles" phenomenon.

Well this is supposed to be a forum about fly fishing, not nymphing. 😁

 

[caddisflyer]

There's drag and then there's "micro drag".

 

[jifigz]

There's drag and then there's "micro drag".

And then there is super-micro-drag.

 

[discomidge]

Well this is supposed to be a forum about fly fishing, not nymphing. 😁

Haha, touché

 

[Broodstock]

here is one practical application to the water speed with depth data presented in the video that does apply to or impact dry fly fishing: When you see a rise form, that fish has likely moved up out of slower water into faster water to feed, and then moved back down into slower water. The fish, if holding in a station feeding on the surface is always going to be upstream of the rise form. How far upstream? It varies, depending on many factors, but difference in water speed with depth is one of the main ones. How much to lead when casting to a rising fish? Probably more than you expect based on this.

 

[JimKennedy]

To answer your question…. I want to catch trout with dry flies. For me, it’s not the number of fish I catch, but how I catch them that matters.

Sorry if that offends you.

Not offended in the least. If you are having a good time, you are doing it right.