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1.1
THE PIKE
Pike or Northern Pike, scientific name Esox lucius is a streamlined
Predatory freshwater fish whose origin can be dated back thirty
million years from fossil evidence. Pike can be found in most of
Irelands rivers and lakes living in harmony with other species as
an important part of the freshwater ecosystem. The pikes physical
characteristics have changed little through the ages and their efficient
design has helped them survive the events that rendered the dinosaurs
and many other prehistoric species extinct. These characteristics
include green and yellow body markings to disguise the Pike the
weeds, streamlined body together with dorsal and anal fins set back
near the tail to give maximum power to shoot after its prey, eyes
set forward in the head to give a degree of binocular vision helping
to judge distance more accurately and powerful jaws coupled with
sharp teeth pointed back in the mouth to prevent prey from escaping
its grip.
The maximum life span of Pike is around 15 years and the official
Irish rod caught record is 42 lb. The largest Pike recorded in Ireland
was 90 ½ lb. in weight and 5'-6" long in 1862, however
no reliable authentication exists. The larger fish are females or
'Hen' fish and the smaller males typically reach a maximum weight
of 10 lb. Pike are a relatively fast growing species and a typical
20 lb. fish could be as young as six years old. Pike are lone opportunistic
hunters and are not territorial they often share hunting grounds
with other similar size Pike. As a preference, Pike will feed on
excess in the young Pike population plus the weak and deceased of
other species to reduce the hunting effort thus helping to maintain
a perfect balance in the ecosystem. Mature Pike tend to lie in the
deeper holes in a fishery and normally only move to open water engage
in hunting. The clear alkaline waters of limestone lakes and connecting
rivers produce the larger fish while more acid colored or boggy
waters tend to produce smaller fish. Irish Pike normally spawn between
February and April depending on water temperature, and move into
shallow grassy or weedy bays to lay their eggs. Males accompany
the females to fertilise the eggs and many themselves become a meal
for the ravenous females when the spawning process is completed.
1.1
1.2
HISTORY OF PIKE IN IRELAND
The research by Frank Barbe and Shane Garrett titled "The
Pike in Ireland: A (Necessary) Review" casts indisputable doubt
on the introduction theory currently used as a reason for culling/transferring
pike on some Irish waters. This research, which took over a year
to compile is comprehensive and fully supports the wish of Irish
Pike Anglers that the pike species is now assigned the status of
"indigenous species".
A copy of the research is included in the appendix.
1.2
1.3
GEOGRAPHICAL SPREAD OF PIKE IN IRELAND
Pike are present in lakes and rivers in almost all counties in
Ireland where suitable waters are present. The only areas where
there are no pike are the extreme northwest, west and southwest.
1.3
1.4
CURRENT STATUS OF PIKE STOCKS
We are convinced that pike stocks have decreased dramatically over
the last 30 years. We are particularly concerned over the sharp
decline in specimen-sized pike. In the few areas where there may
be good stocks pike are small and this may be as a result of the
lack of larger pike to prey on them.
1.4
1.5
BIOLOGY OF PIKE STOCKS
The extract below is taken from an article by Dr Bruno Broughton
on the scientific basis for pike culls. Further information is available
on www.pacgb.com.
General Comments On Management Principles:
There are a wide variety of physical, chemical and biological factors,
which influence fish populations in exploited fisheries.
Where both predators and prey are present, factors which increase
fish numbers include:-
· immigration
· natural recruitment (successful spawning)
· stocking, be it planned, accidental or illegal.
Factors which decrease fish numbers include:-
· emigration
· pollution
· disease and parasitism
· 'natural' mortalities
· predation - by the same species, other fish or other animals
· removals, either deliberate (cropping/culling) or theft
· angling, through deliberate or accidental actions.
In assessing the reason(s) for changes in the status or composition
of fish populations it is important that each of these factors is
considered. All too often, those charged with managing fisheries
draw cause-and-effect conclusions based on prejudice, hearsay or
inadequate data. Historically, the persecution of pike in British
fisheries was a case in point, based on the fallacious notion that
if left to their own devices, the pike would eat all of the other
species to extinction.
With improved knowledge and its wider dissemination to anglers,
attitudes have changed rapidly in the last few decades. It is fair
to state that the far greater protection afforded to pike has not
been accompanied by a decline in the quality of fishing for non-pike
species.
Were this not the case, there would undoubtedly be a substantial
groundswell of angling opinion in favour of rescinding pike conservation
measures and resuming widespread pike culls... which there is not.
Scientists and anglers in many other countries, notably in some
other western European nations and in North America, share this
more enlightened attitude to pike.
1.5
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