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Identifying what fish are eating

Joined:
1/20 11:44
From Denver, PA
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Different times and at different places I've seen fish rising and eating off the surface. However, it's often difficult for me to identify what it is specifically that they're eating, even if I'm familiar with the hatches and insects on a given stream. Is there anything I can do to better identify what a fish is eating?

Posted on: 7/31 16:47


Re: Identifying what fish are eating

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2015/6/1 16:22
From Burke VA
Posts: 1176
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Alot of the time they are taking something just below the surface where it is very tough to see what they are eating. Dropping a small pheasant tail or midge pattern a few inches off a dry often will solve the problem.

Also try to read the different takes. Are they splashy, sipping, porpoising takes? They can all clue you in to what they might be eating. However the best advice I can give you on what they are eating is......a great drift.

Posted on: 7/31 19:10


Re: Identifying what fish are eating

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2015/6/24 19:54
From New Jersey
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Usually you can see the flies they are taking on the water. For me, when I see naturals drifting over a feeding fish and there is no takes, I try a BWO. I have have a hard time seeing them on the water.

Posted on: 7/31 20:38


Re: Identifying what fish are eating

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Carry a fish aquarium net or a small and net the surface of the stream.

Posted on: 7/31 22:12
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Re: Identifying what fish are eating

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Quote:

Also try to read the different takes. Are they splashy, sipping, porpoising takes? They can all clue you in to what they might be eating.


A bit more detail:

Splashy rises with fish coming out of the water often indicate fish chasing either emerging or ovipositing caddis flies. Try an EHC/softhackle combo. (Splashy rise can also simply mean small fish.)
Consider fishing downstream, and twitching the EHC.

Otherwise, look for a bubble in the rise. If you see one, they're taking something off the top. (They sucked in air with the bug and it has to go out again.) The size of the rise is a clue to the size of bug being eaten.

Porpoising rises a are clue that they're taking something both small and numerous. Think midges, tricos or small olives. Time of year might help here. the actual bugs may be in the film, or just below, and probably not doing a lot of moving.

If you don't see a bubble, they're probably taking below the surface. Try a dry/dropper or a team of wet flies, depending on your own preferences.

Posted on: 7/31 23:23
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Re: Identifying what fish are eating

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2006/9/11 13:05
From Lewistown
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Usually it's not fly selection, but rather fly presentation. If your dry is dragging at all along the surface, even if you can't see it, that will turn fish away.

Sometimes it's a timing issue too. Occasionally, fish will rise rhythmically. Find it's pace and try to time your cast and drift.

If it is fly selection, try to narrow it down by size and then color. If you have to go 1 size smaller than you think.

Posted on: 9/14 12:36
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Re: Identifying what fish are eating
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2016/1/24 14:30
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Quote:

redietz wrote:

Otherwise, look for a bubble in the rise. If you see one, they're taking something off the top. (They sucked in air with the bug and it has to go out again.) The size of the rise is a clue to the size of bug being eaten.

Porpoising rises a are clue that they're taking something both small and numerous. Think midges, tricos or small olives. Time of year might help here. the actual bugs may be in the film, or just below, and probably not doing a lot of moving.

If you don't see a bubble, they're probably taking below the surface. Try a dry/dropper or a team of wet flies, depending on your own preferences.


This, especially the part about looking for a bubble, is worth repeating.

Posted on: 9/16 7:50


Re: Identifying what fish are eating

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2014/6/18 20:59
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I'll agree with some information provided and disagree with some information provided. I don't think you're going to find a one type of rise that 100% guarantees you've got it figured out.

Best information I could provide is "observe". Watch the fish, look at the water, look in the water column, watch the fish and make your own informed decision. A fish holding in soft pocket might dart into faster water to grab a mayfly dun resulting in a splashy rise. A majority of people will say "They are slashing at caddis. Go to the EHC". Well, caddis hatches often overlap mayfly hatches so you might get away with an incorrect identification. Not always though.

Fish taking just under the surface often make a rise where their nose doesn't break the surface but they'll show their back, dorsal and tail. An unweighted nymph in the film or greased to be just under the surface can be deadly but difficult to detect a take unless you can see the fish. A soft hackle can also be quite effective.

Just keep your eyes open, observe and make mental note for following trips. Presentation is typically more critical that pattern. General fly shape and relatively close size will get takes when presented properly. Read up, fish with a mentor and take in as much info as you can. Some nymphs are fast swimmers, some crawl to shore, some caddis bounce and others dive. Identify what's going on, match it and you'll be taking hero shots with the camera in no time.

Posted on: 9/18 20:36
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Re: Identifying what fish are eating

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2012/2/16 18:55
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They are very often taking Griffiths Gnats which can be hard to see. A well presented Adams will sometimes take these fish.

Posted on: 9/19 6:51
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Re: Identifying what fish are eating

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2011/7/6 13:48
From Philadelphia PA
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I overturn a few rocks in the river/creek to see what they may be eating.

At age 57, it's hard for me to see some of those small dry flies that fish are taking at the top. I have some that are, hook size at 22 or 25 - hell I can barely put them on my 2lb line.

Casting dry flies to get their take can be challenging. If I know where the trout are sitting and se ethem taking on top I try to get the fly around 12" from them. I find that if I put it right on top or to far in front of them my hook up ratio drops. It's like you want to get it to attract their attention and not give them time to look at it, at the same time.

Posted on: 10/18 8:58
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Re: Identifying what fish are eating

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2010/5/28 0:25
Posts: 316
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Griffith's Gnats are not an insect, they are an imitation fly developed by George Griffith.

Posted on: 10/18 21:06
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