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

IE0002268

1.3 Site name

Achill Head SAC

1.4 First Compilation date

2001-04

1.5 Update date

2019-01

1.6 Respondent:

Name/Organisation:National Parks and Wildlife Service, Department of Culture, Heritage and the Gaeltacht
Address:               
Email:datadelivery@chg.gov.ie

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2000-09
Date site confirmed as SCI: No information provided
Date site designated as SAC:2018-02
National legal reference of SAC designation:77/2018

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:-10.161388
Latitude:53.961675

2.2 Area [ha]

6892.3604

2.3 Marine area [%]

99.9400

2.4 Sitelength [km] (optional):


No information provided

2.5 Administrative region code and name


No information provided

2.6 Biogeographical Region(s)

Atlantic (0.00 %)

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
1140  info      16.1216  0.00 
1160  info      6887.82  0.00 
1170  info      3560.27  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.
  • 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)

Species

Population in the site

Motivation

Group CODE Scientific Name S NP Size Unit Cat. Species Annex Other categories
     MinMax C|R|V|PIVVABCD
Aglaophenia kirchenpaueri                   
Aldisa zetlandica                   
Halicnemia verticillata                   
Neocrania anomala                   
Paracentrotus lividus                   
Spongionella pulchella                   
  • Group: A = Amphibians, B = Birds, F = Fish, Fu = Fungi, I = Invertebrates, L = Lichens, M = Mammals, P = Plants, R = Reptiles
  • CODE: for Birds, Annex IV and V species the code as provided in the reference portal should be used in addition to the scientific name
  • 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)
  • 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)
  • Cat.: Abundance categories: C = common, R = rare, V = very rare, P = present
  • Motivation categories: IV, V: Annex Species (Habitats Directive), A: National Red List data; B: Endemics; C: International Conventions; D: other reasons

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N0198.00
N021.00
N051.00

Total Habitat Cover

100

Other Site Characteristics

Achill Head is the most westerly point of Achill Island on the north-west coast of Ireland. The site comprises the shallow waters extending from Dooega Head north-westwards to Achill Head and north-eastwards to Gubnahinneora Point. Bedrock is metamorphic schist and gneiss alternating with metamorphic quartzite. High cliffs (650m) on the north-west of the island drop vertically into the sea forming steep sublittoral reefs. Landwards, they sweep down to two exposed bays, Keem Bay and Keel Bay, that are composed of sediments.

4.2 Quality and importance

The Achill Head site has good examples of extremely exposed reef communities. The littoral reef contains populations of the purple sea-urchin Paracentrotus lividus, which are vulnerable to over-exploitation. The infralittoral reef contains an exceptional Alaria esculenta community. There are important sponge communities in the circalittoral reef. Achill Head is the only pSAC where one sponge species, Halicnemia verticillata, is present (though it also occurs in outer Galway Bay). The brachiopod Neocrania anomala is frequent at one circalittoral reef. It is only otherwise known to occur in abundance in the Kenmare River in the south-west of the country. Exposed shallow bays, with small though significant examples of intertidal sand flats are also present and add habitat diversity to the site.

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]
HF02i
HF02.02.02i
LF02.03i
MF06i
HF06i
LG05i
LG05.01i
HI01i
HL07i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
LF02.03i
LF06i
LG01i
HG02.09i

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)

Cabot, D. (1965). Cuvier's whale Ziphius cavirostris , on Achill Island, Co. Mayo. Irish Naturalists' Journal, 15: 72-73.Cabot, D. (1967). A sperm whale, Physeter catodon (L.) on Achill Island, Co. Mayo, March, 1967. Irish Naturalists' Journal, 15: 326.Hanna, H. (1898). Impressions of Achill: seaweeds. Irish Naturalist, 7: 142-143. Hanna, H. (1899). Chaetomorpha crassa at Achill. Irish Naturalist , 8: 51.Hinch, J. De W. (1911). A high level deposit of marine shells in Curraun Achill, Co. Mayo. Irish Naturalist. 20: 189-193. Massy, A.L. (1904). Marine Mollusca of Achill. Irish Naturalist , 13: 44.Nichols, A.R. (1914). Long-finned Tunny on shore of Achill Island, Co. Mayo. Irish Naturalist , 23: 227. Nunn, J. (1995). Recording Mollusca in Ireland: Achill Island, Co. Mayo. Conchologists' Newsletter, 7: 441-445.Picton, B.E and Costello M.J. eds. (1997). BioMar Biotope Viewer: a Guide to Marine Habitats, Fauna and Flora of Britain and Ireland (Ver. 2.0) Environmental Sciences Unit, Trinity College, Dublin. (Compact Disc).Quigley, D.T.G. (1985). Specimens of trigger fish Balistes carolinensis Gmelin, 1789 (B. capriscus Gmelin) from Achill Island, Co Mayo, and a review of the Irish records. Irish Naturalists' Journal, 21: 474-476. Quigley, D.T.G. (1986). A specimen of the barrel-fish Hyperoglyphe perciforma (Mitchill, 1818) (Lirus perciformis Regan, 1902) from Achill Island, Co Mayo. Irish Naturalists' Journal, 22: 77-78.Stephens, J. (1921). Sponges of the coast of Ireland 2. The Tetraxonida (concluded) Department of Agriculture, Ireland, Fisheries Scientific Investigations 1920 II: 1-75. Dublin.Tatlow, E.M., & Praeger, R.L. (1898). Impressions of Achill: marine Mollusca. Irish Naturalist, 7: 139-140. Went, A.E.J. (1951). Movements of salmon around Ireland. I. From Achill, Co. Mayo (1948 to 1950). Proceedings of the Royal Irish Academy, 54B: 169-201.

5. SITE PROTECTION STATUS

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6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:


No information provided

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

6.3 Conservation measures (optional)


No information provided

 

7. MAP OF THE SITE

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INSPIRE ID:IE.NPWS.PS.NATURA2000.SAC.IE0002268
Map delivered as PDF in electronic format (optional)
Yes
X
No

SITE DISPLAY