CHAPTER VII

HOW TO FISH THE FLOATING FLY

(_Continued_)

Casting purely to the rise is the orthodox way of dry fly fishing

on the English chalk streams; that this manner of fishing the

floater is of necessity subordinated to fishing all the water on

American streams has been mentioned heretofore. Save in extremely

favorable localities where the conditions closely approximate

those of the British streams, stalking the fish is practically

love's labor lost. However, large, quiet pools may be fished in

this way if the angler selects the most propitious time for rising

trout--in the warm season a little before sundown and for some time

thereafter. Extensive, quiet reaches where the fishing is open may

also at times be resorted to with the idea of casting to the rise,

and some fair sport obtained.

Regarding the sporting merits of the two methods, I personally am

sure that if conditions allowed I would never cast a fly except to

a rising trout. The visible rise of a trout always appears in the

nature of a challenge, and my inability to get away from a place

where I positively know a good trout is located has frequently

resulted in my return with a pretty light creel. When casting over

a pool, no matter how good, while fishing all the water, lack of

success eventually breeds a doubt as to the presence of a trout

therein; anglers going before may have temporarily fished it out or

for some other reason, the pool may be barren at the time.

But when casting over a rising trout everything is certain and

well-defined. You know where the fish is located, or at least where

he came up; you generally have a pretty fair idea of his size; if

duly observant you can guess closely to what sort of natural fly

the fish rose, everything is sure save the eventual capture of that

particular trout. You are fairly certain that if the right fly is

put over the fish in the right way success will follow. It is up to

you.

To cast with some understanding to a rising trout, it is very

necessary that the angler be somewhat familiar with the habits of

the fish when feeding upon the floating insect and also be fairly

conversant with the life histories of what may be termed the

fishing flies. That rises occur when the fish are not feeding,

that sometimes the trout roll up to or leap above the surface,

is well known to the experienced stream fisherman. With this

feature of the matter we are not here concerned; the habit has

been variously accounted for by anglers and icthyologists but the

motive of the fish in thus acting is still debatable. However this

may be, the angler may safely conclude that any visible rise--save

generally a clear leap above the surface--is a rise to the natural

fly by a feeding trout until the contrary may appear from the

attendant circumstances.

It is with the _bona fide_ rise of a trout to the floating natural

fly that the dry fly caster is chiefly concerned. But in this

connection it should be noted that the feeding of trout upon the

natural insect is by no means confined to the time of the latter's

appearance strictly on the surface. Of the water-bred insects the

_Ephemeridae_, called "duns" when in the sub-imago state, occupy

the place of greatest importance in the entomology of the dry fly

fisherman. In a later chapter something is said of the commoner

insect life of the stream; it should here be noted, however, that

trout feed upon the _Ephemeridae_, for instance, at all stages of

their existence.

From the eggs deposited upon or in the water by the adult insect,

or "spinner," in due time the nymphs are hatched. Upon these the

trout feed at times on the stream-bed and in the weeds, nosing upon

the bottom and in the aquatic vegetation in somewhat the same way

as the common sucker or the German carp go about their business

of drawing sustenance from the muck and weeds of the stream-bed.

This habit of the trout, when followed in shallow water, results in

an occasional disturbance of the surface by the tails of the fish

and is called "tailing" in the nomenclature of the English dry fly

fisherman. In this connection it should be noted, however, that the

nymphs of the _Ephemeridae_ which burrow under rocks and in the

stream-bed and there remain until about to assume the first winged,

or dun, state are practically inaccessible to the fish, although

doubtless taken at times. Tailing trout are usually feeding upon

caddis and other larvae.

Subsequently the nymphs, having undergone certain physical changes

while in the nymphal stage, are ready to rise to the surface, cast

off the nymphal shuck or envelope, and emerge into the air in

the first winged state (sub-imago) at which time, as noted, they

are called duns. During the rise of the nymphs to the surface,

when about to assume the dun state, they are often taken by the

trout with avidity, and frequently when the nymph has neared the

surface a trout taking it will visibly disturb the surface or break

water--again in dry fly parlance called "bulging."

Ground-feeding or tailing trout and trout feeding in mid-water upon

nymphs floating up to the surface--bulging trout--are manifestly

not genuinely rising fish. To consider briefly once more the life

history of the _Ephemeridae_: when the "hatch" is on, the nymph

upon reaching the surface splits open the nymphal envelope and at

once takes wing as a dun--an ephemeral fly in the sub-imago or

first winged state. When the duns are thus hatching the fly may

float for some little distance while ridding itself of the nymphal

envelope and drying its wings for flight; a rise to the fly at

this time is a true rise. It would seem, however, from very close

observation of the water during a good many plentiful hatches of

duns, that only an occasional insect, as compared with the great

numbers hatching, remains upon the water for any appreciable time

while undergoing the metamorphosis from nymph to dun--the change

is in most cases practically instantaneous. You may select any

certain area of water, when duns are emerging constantly from

every part of a pool, and watch that certain area with the utmost

intentness; the chances are you will not see a single fly actually

upon the water although many do, indeed, emerge from the water

under observation and fly away.

In "American Insects" Professor Vernon L. Kellogg, of Leland

Stanford University, writes as follows: "At the end of the immature

life the nymphs rise to the surface, and after floating there a

short time suddenly split open the cuticle along the back and after

hardly a second's pause expand the delicate wings and fly away.

Some nymphs brought into the laboratory from a watering trough at

Stanford University emerged one after the other from the aquarium

with amazing quickness." This from an undoubted authority, with

my own experience, comparatively short but to the same end, leads

me to believe that rises to the duns on the surface at the time

of metamorphosis from the nymph are certainly less frequent than

commonly believed and implied by dry fly writers; the rise would

have to come at such an acutely psychological instant that the

chances are altogether too many against it.

In fact it would seem that when the duns are hatching many, perhaps

most, rises are to the floating nymph and not to the winged insect.

Autopsy shows a marked preponderance of larvae and nymphae about to

change to the winged state over winged insects in the stomachs of

trout taken under natural conditions. Furthermore, I might quote

Mr. Halford when, in discussing bulging trout, he says: "Fish,

when feeding on larvae and nymphae, at times rise quietly, without

moving about from place to place. It is almost impossible under

these circumstances to distinguish the apparent from _bona fide_

rises."

All of which does not militate in the least against the theory

that the artificial fly should correspond with the natural; when a

decided hatch is on the trout are fully aware of the nature of the

prevalent fly and if feeding upon it are quite likely to notice no

other either natural or artificial. But the theory does, indeed,

explain some phases of dry fly fishing which otherwise are quite

inexplicable; for instance, inability to induce a rise to the

properly fished winged artificial when its corresponding natural

is hatching and "apparent" rises to it are evidently common. It

seems fairly certain that at such times the fish are feeding

exclusively on the floating nymphs, taking them on the surface in

practically the same way as the winged dun is taken. Also fish

thus feeding would hardly come within the technical definition of

bulging trout as that term is generally understood.

Having assumed the first winged state, scientifically the

sub-imago, the duns thereafter are upon the water more or less

during its continuance, sometimes blown upon the water or

descending to the surface without apparent reason, and the trout

rise to and feed upon them when in the mood. In a short time the

dun or sub-imago undergoes another metamorphosis to the imago or

"spinner"--the adult insect. The male spinners are subsequently

upon the water in a spent or practically lifeless condition

following the completion of the act of coition. The latter takes

place over the stream to which the female spinner then descends to

void her eggs. This, with some species, is done upon the surface,

the fly floating downstream the while eventually to rise again

and fly, generally it would seem, upstream--unless the program is

incontinently halted by the accurate rise of a trout. The spent

spinners ("spent gnats") also serve as food for the trout--the

male when it has completed the act of procreation and falls to the

stream, the female when all the eggs have been voided.

Excluding, then, bottom-feeding or tailing fish, also fish feeding

upon nymphs either in mid-water or, as noted, practically upon the

surface, the trout feed upon the _Ephemeridae_ first as duns and

subsequently when, as spinners, the female floats on the surface

when voiding her eggs, and upon both males and females when spent.

Before casting to a rising trout the angler should, as far as may

be, determine the nature of the rise and the fly to which it was

made. The question of the right fly having been decided, it remains

only for the angler to put the fly over the fish in the right way.

When you see the rise of a presumably feeding trout, spot it

carefully; that is, make very sure of the exact spot where the

fish rose. Unless this is done it will be necessary to wait for

another rise, which may never come, or to cast haphazardly over the

approximate place, which usually results in failure. As a general

rule the artificial must travel in practically the same path as

the natural fly if the trout is to rise to it

Choose your place from which to cast over the trout with two

things in mind--to avoid being seen by the fish, and to lessen the

liability of drag. Keep low and cast not a foot more line than

necessary.

Do not cast to the exact place of the rise; drop your fly some two

or three feet above it so that the fly will float down over the

place where the fish rose. Moreover, if possible, avoid throwing

your leader over the fish--which will not occur unless you cast

actually in line with it from below.

If the fish fails to rise let your fly float well below it before

lifting it from the water--for which the reason should be obvious.

My own experience leads me to believe that often a trout will rise

only to a fly, natural or artificial, floating over a certain small

area of the surface which sometimes the fish seems to have selected

for the purpose of feeding; if the artificial fly fails to cover

the exact spot to which the trout is rising it may be the fish

will wholly disregard it. Frequently I have cast to a rising fish

and failed through difficulties of drag--and poor casting--to get

the fly over the right place in the right way until possibly the

fifteenth or twentieth cast, and in the meantime have seen the fish

rise to the natural fly within six inches of the artificial. But

when I have had the right fly and by dint of persistent casting

have at last floated it over the exact spot--the "dead line" for

the natural fly--the response has almost always been instantaneous

and emphatic. So I would advise not letting up on a rising fish

until you are sure that what may be termed the feeding zone of the

trout--often very restricted--has been covered by your fly while

cocked and floating in an absolutely natural way.

At the same time it is poor business to keep hammering away at a

very particular fish for the simple reason that the more you cast

to him the more shy and finicky he is apt to become--certainly

if the casting is not done with the utmost possible skill and

unobtrusiveness--and eventually you may set him down to stay. It is

best to divide your attentions, fishing the water above or below,

and returning from time to time to make some half-dozen casts over

the reluctant one.

I believe it pays best when fishing all the water to use a

fairly large fly--as dry flies go--say a fly dressed on a No. 10

long-shanked hook. I have had particularly good results from the

floaters tied on these long-shanked hooks and am of the opinion

that for average dry fly fishing under American conditions, when

fishing all the water, they are more successful than the orthodox

patterns. This goes for the larger, deeper streams and, as noted,

for fishing all the water. For small stream fishing smaller flies

are preferable. So far as I know dry fly patterns on No. 10

long-shanked hooks are procurable only from William Mills & Son,

New York.

But when casting to a rising trout, even if you cannot discern

to what fly the fish is rising it is best to discard the fancy

pattern--hare's ear, Wickham, or coachman, which are generally

best to use when fishing all the water for general results--and

to put up an imitation of some one of the duns, olive, iron blue,

whirling blue, and so on, dressed on a No. 12 or 14 hook which

best approximate in size the natural ephemera ordinarily prevalent

on the trout streams. The common-sense of this should not need

argument, and it is best to try the small dun before possibly

setting down the fish with a fancy pattern.

From the above it could be gathered that one of the approximately

exact imitations of the duns might be superior to a so-called

fancy pattern for steady fishing, fishing all the water; and,

indeed, upon occasions, this is certainly the case. In the season

of 1911 I was out one day with a wet fly fisherman on one of the

smaller Berkshire streams, upon which occasion we took eight trout

from a small pool at the foot of a falls. The wet fly man, who, by

the way, has played the game some thirty-five years during which

time he has learned some few things about it, took two fish with

the coachman and then cast for fully half an hour without results.

In the meantime I busied myself with the camera, by no means,

however, failing to note several rises in various parts of the pool.

When the wet fly man had gone on about his nefarious business I

rested the pool while putting up an olive dun dressed on a No. 14

hook. Shortly thereafter I had six good trout for my pains and a

still greater respect for the great little dry fly--in addition to

a good working "bulge" on the veteran. But below the pool I could

do nothing with the little dun and I was eventually compelled to

return to my favorite golden ribbed hare's ear with which I then

killed several good fish.

For straightaway all-water fishing it would seem that a good fancy

pattern, rather large, ordinarily gives the best results, save

over very clear or low water when everything depends upon refining

the tackle. Moreover, when fishing the water it is distinctly

easier to keep a comparatively large fly dry and floating--the very

small patterns when in constant use soon become thoroughly soaked

and difficult to float.

Fishing with Floating Flies · 第 7 / 8 章