The Grayling
The asche, the knab, the mittler, the stalling, the ombre, the
vlagzalm, the perek, the smrdlan, the kharious, the jigan, the
giazzarolo, the temer, the mutema, the lipan and the Lady of
the Stream etc., etc., etc.
Never have I heard of so many names for just one fish. Of
course, the extensive distribution of it is part of reason but
the other is undoubtedly the esteem in which it is held in
some countries. In Germany & Austria there are at least 26
names for the fish; 15 in Italy and 12 in Russia.
The Grayling, or Thymallus thymallus as it is scientifically
termed- so called because of wild thyme smell, is one of the
most beautiful, most respected and loved yet also the most
victimised freshwater fish in the northern hemisphere.
There are a number of species of grayling living in the
freshwaters of Europe, Asia and North America between about
400 and 700 latitude North. They are, without question,
salmonids and, apart from the presence of an adipose fin -
that's the useless little appendage on the top of the fish
near the tail and present in all members of the salmon family
- distinguishing features include a large dorsal fin, rather
large scales compared to, say a trout, a small mouth and a
pear-shaped eye.
Distribution
Grayling are also found in lakes, particularly in northern
parts, but in the United Kingdom it is usually where the still
water is part of a river system.
In the extreme north of its range, the grayling is tolerant of
salt water and occurs in the sea, although I believe the salt
content of the Arctic is less than that in lower latitudes.
The Grayling - at least our grayling - are not found in the
Southern Hemisphere although there is a fish called the
grayling in Australia but it is no relation at all to
Thymallus thymallus.
The earliest record of grayling comes from the south-east of
Europe in the Miocene era some 20 million years ago. Grayling
fossils of similar antiquity have not been found elsewhere.
What then could have been the conditions allowing grayling to
spread so widely?
During the last Ice Age, when the ice sheet spread far south
into Europe and North America, much of the plant and animal
life of the northern hemisphere was overwhelmed. The Grayling,
however, survived in parts of North America and in the Danube
basin and from those refuges, over the following centuries, it
re-colonised Canada, most of Europe and parts of Asia.
Fossils of grayling and their relatives the trout, salmon,
char and whitefish are rare because their habitats are not
very conducive to fossil formation - they do not inhabit muddy
and swampy areas which are the ideal situations for the
formation of fossils. A few populations were sufficiently far
south in Asia to have survived during the Ice Age and they are
distinct enough to be now classed as separate species. They
are the Amur, Mongolian, Hovsgol and Baykal.
Although the grayling's distribution tends to be patchy,
particularly in the south, where it does occur it tends to be
generally abundant.
As Lee Berg said in 1948 about grayling fishing in Russia:
"The grayling is very abundant in the Anadyr, near Markova: at
times one angler could take up to 800 specimens nightly
through holes chopped in the ice". The rest of the world's
grayling, including our own, the European grayling, and the
Arctic grayling are nowadays considered to be one species -
Thymallus thymallus or a pair of closely related species.
BIOLOGY
The grayling, whilst being members of the salmon family, spawn
in the Spring - leading, of course, to the misconception that
are one of the coarse fishes. Why do they call them 'coarse'
fish anyway - I cannot imagine a carp or barbel or roach
deserving the description 'coarse'.
Spawning takes place on the clean gravel sections of the river
in a manner not dissimilar to trout and salmon. The males are
very territorial on the spawning grounds chasing away
intruding small males.
During spawning the male curves the extended dorsal fin over
the female almost like a clasping organ, there is vigorous
vibration, eggs and milt are discharged and partially covered
by the material stirred up during this vibration
The female may spawn once only or several times in different
areas - promiscuous little bats! There is no spawning at night
and it is naturally more active during warmer water
temperatures of midday.
COLOUR
The grayling is a most strikingly coloured fish and its beauty
never fails to astonish the angler who catches one for the
first time. The dorsal surface is dark purple, or blue-whilst
the flanks are silver grey to dark blue with a pinkish
iridescence and often a golden lateral line and are marked
with a varying number of V-shaped or diamond-shaped spots. The
ventral surfaces are light grey to white. The head is
olive-green with a mauve iridescence, and the eye is dark
green and gold with the pupil shaped like a teardrop on its
side.
The dorsal fin is the singular most characteristic feature of
the grayling and is huge! It is basically dark coloured with a
narrow mauve edge often with a wider blue band below and
vertical rows of orange-red or mauve to emerald green spots.
The males have the larger dorsal fins and, as in the way of
nature, are the most vividly coloured with females being
similarly, but less brightly marked.
The young grayling, are deeper in the body than most salmonids,
greenish above with a large dorsal fin and 10-20 dark parr
marks straddling the lateral line.
The
EUROPEAN GRAYLING
It is a species of the central and northern countries of
Europe found mainly in rivers and some alpine or alpine type
lakes. The grayling is found in many rivers and some lakes in
countries throughout Europe such as Italy, France, Belgium,
Luxembourg, Yugoslavia, Slovenia, Slovakia, Croatia, Czech
Republic, Austria, Germany, Poland, the Baltic States,
Denmark, Sweden, Norway, Finland, Russia and ,of course,
Scotland, England and Wales. Curiously, it does not occur in
Ireland! I have a theory that St. Patrick was taught his
environmental management by a keeper for a trout angling
syndicate on an English chalkstream. So, after doing something
useful like chasing all the snakes out of Ireland he then did
a really daft thing and got rid of the grayling!
The
ARCTIC GRAYLING
This is a species closely similar to the European grayling and
is found in North America and Asia. Arctic grayling occur
mainly in rivers but many of the populations are associated
with lakes, including the huge Great Bear and Great Slave
Lakes. Isolated populations occurred in Michigan and, at high
altitude, in Montana, but the Michigan population (where it
was abundant last century) is extinct and the Montana
population is now limited to a few lakes and streams. There
are also grayling reputed to exist in lakes in the Rockies in
Colorado and the Colorado Department of Game & Fish lists a
grayling record.
In Asia, Arctic grayling occur from the Urals east as far as
the Bering Straits. They didn't make it across the sea though
and there are no grayling in Japan. Even if there had been
grayling there they would probably have eaten them all by now!
There are four types of grayling found in Asia which are
sufficiently different to be generally considered as
independent species; the Baykal, (both the baykal white and
the baykal black); the Hovsgol found in Lake Hovsgol; the
Mongolian Grayling and the Amur - a brightly coloured grayling
with an unusually large dorsal fin. Perhaps that's where Roger
and I will go the next time we have the cash!
DIET
Now that we know where they are to be found how can we catch
them? Well let's first take a quick look at what they eat'. As
you might expect feeding intensity is closely related to water
temperature - and feeding is at its lowest in February and
March when water temperatures are at their lowest, and at a
peak in the late spring and early summer - but it is generally
high throughout most of the year. Grayling consume both a
large variety and a large quantity of food organisms -
anorexia is unheard of in the world of the grayling!
GRAYLING RISE FORM
The grayling's area of vision, encompassing the surface, can
trigger a response, in which they glide up from considerable
depths to intercept a floating offering. Because they come
from so deep and their mouth is much lower down the jaw than
that of a trout, a surface fly is taken by the grayling in a
near vertical position, quite unlike the trout which generally
just raises its position in the stream without changing its
orientation.
In general their acceptance of imitations is very much quicker
than that of the trout. They have, after all, less time to
make a decision since their position near the bottom means
they have further to travel than a trout if they are to
intercept the fly.
While the grayling's rapid, angled rise often causes it to
miss the artificial, it will rise again and again to a
carefully re-cast fly. In my experience, a grayling will
generally rise 3 times to the same fly before it becomes wary.
Wait 5 minutes and it will rise again.
Grayling have softer mouths than trout and demand a gentler
strike. They also fight in a more dogged manner than a trout.
Unlike trout, they don't normally dash about like supercharged
nuclear subs, but seem to have a greater understanding of
hydrodynamics than the stupid trout and use the currents and
downstream pressure of the water to help them fight the angler.
The challenge posed by the European grayling has led to the
proliferation of specific tactics and fly patterns.
The
GRAYLING SOCIETY
The Grayling Society was formed in 1977 by a group of
enthusiastic game fisherman who wished to protect the Grayling
and establish it as a true wild game fish. The object of the
Society was and still is, to bring together those interested
in Grayling and Grayling fishing and to promote and publicise
a proper appreciation amongst Anglers, Riparian Owners, Water
Authorities, Conservationists, the Sporting Press and the
media generally, of the Grayling as a game fish in its own
right and as a member of the Salmon family, and to correct the
many misapprehensions regarding it and to conserve stocks and
the natural habitat and to prevent exploitation and
destruction.
Over the years the membership has grown to a total of over
1,200 with members as widely spread throughout the world -
even to Australia and New Zealand where there are no grayling.
With special thanks
to Steve Skuce
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