Database release:
SDF
NATURA 2000 - STANDARD DATA FORM

For Special Protection Areas (SPA),
Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and
for Special Areas of Conservation (SAC)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

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1.1 Type

B

1.2 Site code

UK0030131

1.3 Site name

Dee Estuary/ Aber Dyfrdwy

1.4 First Compilation date

2007-08

1.5 Update date

2015-12

1.6 Respondent:

Name/Organisation:Joint Nature Conservation Committee
Address:               
Email:

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2007-08
Date site confirmed as SCI:2008-12
Date site designated as SAC:2009-12
National legal reference of SAC designation:Regulations 11 and 13-15 of the Conservation of Habitats and Species Regulations 2010 (http://www.legislation.gov.uk/uksi/2010/490/contents/made).

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:-3.216111
Latitude:53.328333

2.2 Area [ha]

15805.2700

2.3 Marine area [%]

97.7000

2.4 Sitelength [km] (optional):


No information provided

2.5 Administrative region code and name

NUTS level 2 code Region Name
UKD2Cheshire
UKD5Merseyside
UKL1West Wales and The Valleys
UKL2East Wales

2.6 Biogeographical Region(s)

Atlantic (100.00 %)

3. ECOLOGICAL INFORMATION

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3.1 Habitat types present on the site and assessment for them

Annex I Habitat types Site assessment
Code PF NP Cover [ha] Cave [number] Data quality A|B|C|D A|B|C
      RepresentativityRelative SurfaceConservationGlobal
1130  info      13255.9  0.00  G  
1140  info      10573.7  0.00  G  
1150  info  X     0.00         
1210  info      0.00   
1230  info      3.16  0.00  G  
1310  info      107.48  0.00  G  
1320  info      34.77  0.00  G        
1330  info      2045.2  0.00  G  
2110  info      4.74  0.00  G  
2120  info      20.55  0.00  G  
2130  info  X     85.35  0.00  G  
2190  info      1.58  0.00  M  
4030  info      0.00         
  • PF: for the habitat types that can have a non-priority as well as a priority form (6210, 7130, 9430) enter "X" in the column PF to indicate the priority form.
  • NP: in case that a habitat type no longer exists in the site enter: x (optional)
  • Cover: decimal values can be entered
  • Caves: for habitat types 8310, 8330 (caves) enter the number of caves if estimated surface is not available.
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation)

3.2 Species referred to in Article 4 of Directive 2009/147/EC and listed in Annex II of Directive 92/43/EEC and site evaluation for them

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
F1103Alosa fallax          DD       
M1364Halichoerus grypus    400  400         
F1099Lampetra fluviatilis          DD 
M1355Lutra lutra          DD       
P1395Petalophyllum ralfsii          DD 
F1095Petromyzon marinus          DD 
  • Group: A = Amphibians, B = Birds, F = Fish, I = Invertebrates, M = Mammals, P = Plants, R = Reptiles
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Type: p = permanent, r = reproducing, c = concentration, w = wintering (for plant and non-migratory species use permanent)
  • Unit: i = individuals, p = pairs or other units according to the Standard list of population units and codes in accordance with Article 12 and 17 reporting (see reference portal)
  • Abundance categories (Cat.): C = common, R = rare, V = very rare, P = present - to fill if data are deficient (DD) or in addition to population size information
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation); VP = 'Very poor' (use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in)

3.3 Other important species of flora and fauna (optional)


No information provided

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N0281.80
N0316.10
N040.70
N050.50
N070.40
N100.20
N140.10
N160.10
N230.10

Total Habitat Cover

100

Other Site Characteristics

1 Terrestrial: Soil & Geology: clay 2 Terrestrial: Geomorphology and landscape: coastal 3 Marine: Geology: shingle,sedimentary,sand,mud,clay,sandstone/mudstone 4 Marine: Geomorphology: intertidal sediments (including sandflat/mudflat),subtidal sediments (including sandbank/mudbank),estuary,islands,cliffs,intertidal rock,lagoon,shingle bar

4.2 Quality and importance

Estuaries for which the area is considered to support a significant presence. Mudflats and sandflats not covered by seawater at low tide for which this is considered to be one of the best areas in the United Kingdom. Annual vegetation of drift lines for which the area is considered to support a significant presence. which is considered to be rare as its total extent in the United Kingdom is estimated to be less than 100 hectares. Vegetated sea cliffs of the Atlantic and Baltic coasts for which the area is considered to support a significant presence. Salicornia and other annuals colonising mud and sand for which this is considered to be one of the best areas in the United Kingdom. Atlantic salt meadows (Glauco-Puccinellietalia maritimae) for which this is considered to be one of the best areas in the United Kingdom. Embryonic shifting dunes for which the area is considered to support a significant presence. which is considered to be rare as its total extent in the United Kingdom is estimated to be less than 1000 hectares. Shifting dunes along the shoreline with Ammophila arenaria (white dunes) for which the area is considered to support a significant presence. Humid dune slacks for which the area is considered to support a significant presence. Fixed dunes with herbaceous vegetation (grey dunes) for which the area is considered to support a significant presence. Petromyzon marinus for which the area is considered to support a significant presence. Lampetra fluviatilis for which the area is considered to support a significant presence. Petalophyllum ralfsii for which the area is considered to support a significant presence.

4.3 Threats, pressures and activities with impacts on the site

The most important impacts and activities with high effect on the site

Negative Impacts
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
HG01I
HI01B
HM01B
HM02B
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
HA02I
HA04I
HD05I
MD05I
HG03I

Rank: H = high, M = medium, L = low
Pollution: N = Nitrogen input, P = Phosphor/Phosphate input, A = Acid input/acidification,
T = toxic inorganic chemicals, O = toxic organic chemicals, X = Mixed pollutions
i = inside, o = outside, b = both

4.4 Ownership (optional)


No information provided

4.5 Documentation (optional)

Conservation Objectives - the Natural England links below provide access to the Conservation Objectives (and other site-related information) for its terrestrial and inshore Natura 2000 sites, including conservation advice packages and supporting documents for European Marine Sites within English waters and for cross-border sites. The Natural Resources Wales weblink below provides access to information on its designated sites. Detailed information about this Natura 2000 site can be accessed via the Management Plan link provided in Section 6.2. See also the 'UK Approach' document for more information (link via the JNCC website).
http://jncc.defra.gov.uk/pdf/Natura2000_StandardDataForm_UKApproach_Dec2015.pdf
http://publications.naturalengland.org.uk/category/3212324
http://publications.naturalengland.org.uk/category/6490068894089216
https://naturalresources.wales/conservation-biodiversity-and-wildlife/find-protected-areas-of-land-and-seas/designated-sites-search/?lang=en

5. SITE PROTECTION STATUS

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5.1 Designation types at national and regional level (optional):

Code Cover [%]
UK0012.40
UK0487.60

5.2 Relation of the described site with other sites (optional):


No information provided

5.3 Site designation (optional)


No information provided

6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Natural England
Address:
Email:
Organisation:Natural Resources Wales
Address:
Email:

6.2 Management Plan(s):

An actual management plan does exist:

X
Yes Name: DEE ESTUARY / ABER DYFRDWY
Link: https://www.naturalresources.wales/media/673576/Dee%20Estuary-Reg33-Volume%201-English-091209_1.pdf

No, but in preparation
No

6.3 Conservation measures (optional)

For available information, including on Conservation Objectives, see Section 4.5.

 

7. MAP OF THE SITE

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SITE DISPLAY