Estuary Wildlife Gets European Protection
The two largest estuaries in Wales have become
Special Areas of Conservation under European laws to protect
wildlife.

The Dee and the Severn Estuaries, both of which straddle the
border between Wales and England, are considered to be amongst the
best areas in Europe for their diversity of estuary habitats and
species. Both estuaries support important populations of migratory
fish species while the extensive mudflats, sandflats and
saltmarshes sustain abundant populations of wintering water
birds.
Welcoming the decision, Dr David Parker, CCW’s Director of
Science said:
“This is good news for the biodiversity of
Wales. Designation of these two estuaries brings the total number
of Special Areas of Conservation (SACs) in Wales to 92, covering an
area of 628,000 hectares, of which 7 are marine sites, protecting
many rare or threatened marine species and habitats.”
Early in the new year CCW and Natural England will be writing to
landowners, local authorities and other interested parties to
confirm the details.
Dr Parker added:
“The designation of these SACs is the
culmination of a long consultation process which began on the
Severn in 1995. Both sites have had legal protection for some time,
so this final designation stage is not expected to significantly
affect the way in which commercial and recreational activities are
already managed.”
At the same time as confirming the two SACs, Welsh and English
Ministers have also confirmed changes to the existing designation
of The Dee Estuary as a Special Protection Area for birds and as a
Ramsar site - an important wetland under the international wetlands
convention.
Severn Estuary Fact File
- The Severn Estuary is one of the largest estuaries in Europe.
The overall conservation area is nearly 74,000ha – roughly the same
size as Anglesey. Two thirds is underwater and one third is
intertidal habitats.
- The estuary’s classic funnel shape helps give it the second
highest tidal range in the world at more than 12 metres. This shape
is what gives rise to one of Britain's few truly spectacular
natural phenomena, the Severn Bore; a large surge wave that can be
seen in the estuary of the River Severn.
- Up to 90,000 birds are attracted to the large areas of mud,
sand and saltmarsh exposed during low tides during the winter
months. The estuary’s mud is twice as fertile as the richest
farmland and huge numbers of invertebrates thrive in it. They, in
turn, provide a feast for many waterbirds such as dunlin, redshank,
curlew, ringed plover and shelduck during the winter and on their
migrations in spring and autumn.
- The estuary and its tributaries are an important area for
migratory fish, such as river and sea lamprey, allows passage to 3
of the 4 confirmed breeding sites for twaite shad in the UK. The
Severn holds the highest recorded number of fish species for an
estuary in Britain, acting as an important nursery for juvenile
fish and supporting economically important salmon fisheries. It is
also the most important estuary in Britain for eels.
- Beneath the waves, only specialist plants and animals that can
tolerate extreme conditions are found. This is because the Severn
has some of the strongest tidal currents in the UK. The Severn
Estuary has the only known extensive subtidal reefs of the
honeycomb worm in Britain for example.
Dee Estuary Fact File
- The Dee Estuary is the sixth largest estuary in the UK with an
area of over 14,000 ha - roughly the area of Cardiff.
- At low spring tides, over ninety percent of the estuary dries
out, exposing vast areas of mudflats and sand flats. These are home
to thousands of invertebrates like worms and shellfish, which are a
rich source of food for birds and fish.
- The Dee Estuary is the winter home for 120,000 waders and
wildfowl, making it the most important wetland site for birds in
Wales. Ducks such as shelduck, pintail and teal feed on the open
waters and saltmarshes, while waders like curlew, black tailed
godwit and oystercatcher use their long beaks to probe in the mud
for food. It is also an important staging post for birds on such as
the ringed plover and redshank.
- The Estuary is an important breeding, sheltering and nursery
area for coastal fish species. It is also a vital connection for
fish that have their breeding grounds in the River Dee, including
the Atlantic salmon, sea trout, smelt, twaite shad and eels as well
as sea lamprey and river lamprey.
- Sometimes as many as 500 grey seals can be seen near Hilbre
Island.
- The SAC also includes areas of a once extensive dune system
which stretched all along the north east coast of Wales. The dune
areas that remain support a rich variety of plants, including the
rare petalwort.
In conclusion, Dr Maggie Hill, Regional Manager for South and
East said:
“It is clear to see why these areas are so
important in terms of our wildlife conservation. We now have to
play our part in celebrating the importance of these areas for the
environment as well as ensuring that they remain a place for people
to enjoy and areas that can contribute to the Welsh economy.”
ENDS
For further information, please contact:
Press officers:
Helen Evans on
01248 385500 or 07717225589 ; or Brân Devey on 02920
772403
Further notes to Editors
European and international wildlife
designations
• Special Areas of Conservation are designated under the
1992 EU Habitats and Species Directive. Together with Special
Protection Areas (SPAs) designated under the 1979 Birds Directive,
they make up a network of sites across all 27 EU member states,
called Natura 2000. The purpose of the Natura 2000 network is to
help halt the loss of biodiversity that has been occurring for many
decades across Europe, by maintaining or restoring a wide range of
habitat types and species to a favourable conservation status.
There are currently about 870 Natura 2000 sites in the UK and over
28,000 in the EU as a whole. Natura 2000 sites are not ‘no go
areas’ or strict nature reserves, but potentially damaging
activities have to be managed sensitively to protect the important
habitats and species.
• The Convention on Wetlands of International
Importance, often called the Ramsar convention
after the town in Iran where it was signed in 1971, is a
global treaty which aims to protect wetlands and the
species they support from further loss and damage
from development, pollution and over exploitation.
As a signatory to the convention, the UK has designated 146
Ramsar sites. Although not subject to the same
legal protection as SACs and SPAs, UK government
and Welsh Assembly Government policy is that Ramsar sites
should be treated in the same way as SACs and
SPAs.
• The Dee Estuary has been a Special Protection Area and
Ramsar site for a number of years. Both these
designations have now been updated to take account
of improved information on the location of important habitats
and species in and around the
estuary.
The Countryside Council for Wales is an Assembly
Government Sponsored Body, working for a better
Wales where everyone values and cares for our
natural environment. More information about our work is
available on www.ccw.gov.uk