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SFCA POLICY ON FISH MOVEMENTS AND INTRODUCTIONS
There is presently little or no regulation of the movement or introduction of
fish in Scotland. This lack of control is widely believed by environmental
scientists and fishery managers to leave Scotland’s fisheries and fish
populations vulnerable to a number of significant risks:-
- the introduction into the wild of prolific and/or destructive species from
similar environments elsewhere – whether from another continent or just
another catchment - can harm established populations through competition,
predation or habitat degradation;
- disease and parasites can be introduced to established populations by poor
quality stock fish, or by fish obtained – formally or informally - from
sources without health checking;
- the movement of breeding stock between catchments can dilute or eliminate
unique and sometimes valuable genetic characteristics of local populations.
In the light of the above, SFCA supports the principle that movements and
introductions of all aquatic species should be subject to regulation. In
addition, we support the creation of statutory measures to require health
certification of fish farms and hatcheries and permit stocking only from
demonstrably safe sources. If there are to be such controls, it is self-evident
that compliance must be assured through effective monitoring and enforcement
measures, and so we also support the establishment of appropriate machinery to
achieve these goals.
We will only be able to extend our support to specific regulatory
proposals if we are satisfied that they do not have a disproportionate or
detrimental effect on coarse fish species or the future development of coarse
angling. Coarse fish are a legitimate component of Scotland’s established
wildlife and a valuable sporting resource. As well as providing welcome and
valuable diversity in angling opportunities they enrich Scotland’s
comparatively impoverished native freshwater fish fauna by occupying ecological
niches that are largely separate from those taken up by other species. The
presence of coarse fish in Scotland is not intrinsically more or less desirable
than any other species. Any new Regulations must therefore fulfil certain
criteria:-
- They must not purely restrict movements and introductions by anglers or
for the purpose of stocking fisheries. They must include effective
provisions for control over the two principle sources through which most
unplanned movements and introductions presently take place; namely
inefficient containment practices in the aquaculture industry and
irresponsible discarding of unwanted specimens into open waters by
ornamental fishkeepers.
- They must not act as a de facto ban on the stocking or introduction
of coarse fish species in Scotland. There must be scope to progress from the
status quo by responsible restocking of existing fisheries and the
introduction of coarse fish to waters where they will be the only species
present, or can reasonably be expected to co-exist with other inhabitants.
- The issue for control must not be whether the species concerned is
"native" to Scotland, but what impact its introduction is likely
to have on other occupants of the water or catchment concerned. We reject
the proposition that some fish species should be regarded as
"native" everywhere else in mainland GB but not in Scotland. The
border between Scotland and England is a political artefact, not a natural
environmental boundary. It is irrational for a fish to be considered
"natural" on one side of an administrative border, and yet be
regarded as posing a threat to the environment in another stretch of the
same river a hundred yards away. The only rational units against which to
consider the question of "nativeness" are either the whole
landmass or the specific catchment.
Decisions on whether or not to permit particular movements and introductions
must be based on a practical, pragmatic, scientifically-informed risk
assessment of the potential impact on the other occupants, if any, of that
environment, and must also take account of the amenity value of the
introduction concerned.
- Evidence that a species has long been established in the same water, or
similar waters nearby, without apparent detriment to the other inhabitants
must be taken as a persuasive indication that new introductions to that
water on a suitable scale are unlikely to have adverse effects.
- Where the risk to the aquatic environment concerned of any harmful impact
from a particular movement or introduction is small - and in some cases it
will be astronomically remote - the emphasis must be on identifying
effective containment measures rather than prohibition.
- There are no commercial fish farms supplying coarse species in Scotland.
The legislation must therefore permit the acquisition of stock fish from
appropriate sources in England & Wales, underpinned by adequate
provisions for assuring the health status of the fish concerned.
- Fish populations can be threatened by proposals to drain lochs and
reservoirs. Regrettably, it is also the case that the law currently allows
proprietors to displace established populations of coarse fish to make way
for other species. If fish in these circumstances cannot be removed to
another suitable location, they will be killed. The new regulations must
therefore provide for the possibility of fish being moved from sources other
than hatcheries or fish farms, providing appropriate authority is obtained
to stock them in the water to which they are relocated, and relevant health
checks are undertaken.
It is our view that measures can be devised which meet these criteria while
providing reasonable and effective controls to address the legitimate concerns
of environmental scientists and fishery managers. We would suggest that the
"Section 30" model presently applicable in England & Wales offers
a suitable starting point for constructing such regulations.
Scottish Federation for Coarse Angling
July 2004
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