It is in late autumn that
the cycle begins with the cock fish (male parent) fertilising
the thousands of eggs which the female has laid in a "REDD"
or hollow of fine gravel at the top of the river near its
source. The parent fish, now called 'kelts', cover up the
eggs and drift back down- stream and back out to sea.
The eggs or OVA remain in
the gravel for about five months, before hatching out into
alevins. Having survived on the yolk sacs of their eggs, the
baby fish (now called fry) start their lives by moving into
the river, feeding on the tiny organisms that live in the
river. With the constant threat of predatory fish and birds
as well as flooding, about a quarter of the original hatch
will not survive.
The fry that have survived
grow to become three or four inch long parr and then continue
to live in the river for two to three years, feeding on the
tiny organisms that live in the river, before becoming Smolts
and going out to sea in spring. Some Smolts stay close to
the shore, living on the many sprats and sand eel and then
return to the river as grilse after about a year, weighing
several pounds. Other Smolts will travel further from the
river, traveling thousands of miles across the Atlantic to
the feeding grounds of south east Greenland and Iceland.
Having spent two or more winters
at sea the adult salmon, of which only a small percentage
will have survived, start their return journey home to the
Sixmile water to spawn for the first time. The urge for the
salmon to return to the precise place of its birth is instinctive.
During this journey they will encounter otters, seals, sea
birds, wild mink and predatory birds. Another major threat
posed to them is man, as many are caught by the deep sea fishing
nets or killed by pollution. If they surpass all these threats
they now face their final challenge.
Salmon can be seen hurling
themselves up the weirs of Six Mile Water in a bid to reach
their home.
The salmon require tremendous power to leap and they develop
what scientists call "burst speed". This requires
using anaerobic muscles rather than aerobic which is used
for swimming, which can contract quickly and generate intense
bursts of power, lasting only a few seconds and propelling
themselves forward at incredible speeds, which can be up to
eight meters per second.
Only about one per cent of the original ova will survive to
become young or adult salmon.
• No salmon to be killed during October. Catch and Release
permitted.
• Daily bag limit on Club waters is 2 fish, only one
of which may be a Salmon
For reporting all environmental incidents
relating to water pollution in Northern Ireland phone - POLLUTION
HOTLINE 0800 807060