Ireland's
River Shannon is named after Sionnan, who was the granddaughter
of the Mythological God of the
Sea, known as Manannan Mac Lir. As the legend goes, she
came to this spot to eat the forbidden fruit from the Tree
of Knowledge, which was planted by the Druids. As she began
to eat, the waters of the pool sprang up and consumed her,
eventually to flow out across the land.
According
to another Irish legend, Rowan trees once dropped their
bright red berries into a well full of salmon. Fish
that ate the berries would gain red spots and great wisdom,
and all the Irish men tried to catch and eat these Fish
of Knowledge. However, women were forbidden to catch the
salmon.
One day, a brave female rebel named Sionnan caught and
ate one of the wise fish. Suddenly, a great flood burst
from
the well and carried her away to the sea.
The
Shannon began flowing along its present course after the
end of the Ice Age. In 300 BC, the Roman, Ptolemy,
mapped the river when it was an important trade route
from Europe.
During the first millennium AD, Viking long boats sailed
up the river to loot the medieval monastery at Clonmacnois,
and found a town at Rindoon on Lough Ree. Brian Boru,
the High King of Ireland, broke the power of the Vikings
at
the battle of Clontarf in 1014. He deployed a fleet of
war ships
on Lough Ree to deal with the Viking threat.
Because
of it's proximity in the Irish midlands, the Shannon was
of major strategic importance in military
campaigns
in Ireland during the 17th century. In the Irish Confederate
Wars, the Irish retreated behind the Shannon in 1650
and held out for two more years against the English.
Threatened
by death, Oliver Cromwell forced the remaining Irish
landowners west across the River Shannon. This freed
up the landholdings
in the east for the incoming English settlers.
Rising
from the moors of County Cavan, Ireland's River Shannon
almost divides the country into two halves.
Dominating the
landscape, the river has acted as a barrier to movement
from the east to the west, while providing a water
route from
north to south. The Shannon is the longest river
in Ireland and Britain, and has greatly influenced Irish
history
since the beginning of time. Over 200 miles from
its
source to
the sea, it travels through over a dozen lakes and
passes more then a hundred islands. There are also
dozens of
smaller rivers and streams branching off from the
Shannon. Along
its banks are dozens of historic towns, castles,
and monasteries that testify to Ireland's turbulent history.
The river's
flood plain is dotted with marshy grasslands and
bogs
that support many species of birds and other wildlife,
but for
many anglers, it is the salmon that draws them to
the river.
The
river is now the backbone of a vast network of inland waterways,
joined to the Erne via the newly
restored
Shannon-Erne Waterway. Navigation is simple since
the deep channel is
marked to keep sailors on course. The Erne has
only one lock, the Shannon has six, and the Shannon-Erne
link
has sixteen.
The Grand Canal connects Dublin and the east coast,
while the Barrow Navigation makes it possible to
travel to
the south east. Sailing southwards down river brings
the traveler
through Limerick and out to the Atlantic Ocean.
Future
developments include a possibility of reopening
the Ulster Canal, connecting
the Erne to Lough Neagh, Ireland's largest lake.
Today, there are water taxi's that run up and down
the Shannon.
They even
have a "moonlight cruise" for the more
romantically inclined.
Salmon
fishing is one of Ireland's most important industries.
For centuries, the
fish's habits were
a mystery. Young
fish would appear in the river each spring, only
to seemingly disappear. Now, we know that Atlantic
salmon
are born
in fresh water but spend some of their lives
at sea. The cycle
begins each autumn, when adult salmon swim into
the Shannon from the sea to spawn, and in the
spring, the newborn
emerge. As the young salmon grow, they develop
vertical
bars on
their
sides and head out to sea For a span of a year
or so, they may travel thousands of miles in
the ocean.
Then,
the adult
fish find their way back to their birth rivers
to continue the cycle.
Once,
tens of thousands of salmon would return to the Shannon
to spawn. Today, special hatcheries
are
needed
to help
sustain the Shannon's salmon runs. It is said
that if you listen
closely you can still hear some of the fish
whisper Sionnan's name.