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

IE0001228

1.3 Site name

Aughrusbeg Machair and Lake SAC

1.4 First Compilation date

2003-06

1.5 Update date

2018-09

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:2003-06
Date site confirmed as SCI: No data
Date site designated as SAC: No data
National legal reference of SAC designation: No data

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:-10.166200
Latitude:53.557600

2.2 Area [ha]

422.2529

2.3 Marine area [%]

33.6360

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code Region Name
IE01Border, Midland and Western

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
3110  info      42.24  0.00       
3130  info      42.24  0.00 
4010  info      84.49  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
Chara mucosa                     
  • 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
N0110.00
N0216.00
N048.00
N0510.00
N0612.00
N0830.00
N091.00
N102.00
N2210.00
N231.00

Total Habitat Cover

100

Other Site Characteristics

The site is located on the western seaboard, approximately 2 km west of the village of Cleggan in Co. Galway. It comprises a range of terrestrial, intertidal and marine habitats. The area is underlain by Omey granite. Aughrusbeg Lough is surrounded mostly by coastal heath with frequent outcropping rock. At its western side it is separated from the sea by a narrow machair plain. Lough Atalia is a tidal lake that is connected to the sea by a narrow intertidal inlet. An area of marine water is included, as well as several small islands (Dog Island, Roeillaun, Gooreen Island). Other habitats include sandy and shingle beaches and rocky shoreline.

4.2 Quality and importance

The aquatic vegetation of Aughrusbeg Lake is unusual and has a high conservation value. Overall, it is a very clear, softwater, species-rich lake and, based on current interpretations (O Connor, 2015), is best described as a 3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoeto-Nanojuncetea lake. Small patches of the submerged vegetation may conform to 3110, while other areas are dominated by Chara spp. and could be aligned with the hard water lake habitat (3140). Aughrusbeg Lake was surveyed in 1999 by Cillian Roden in a Heritage Council-funded study, and in September 2017 by Cilian Roden, Paul Murphy and Jim Ryan as part of the NPWS Mixed Najas flexilis lake habitat study. The lake is on granite bedrock and is separated from the sea by a small machair plain, creating sloping granite shores other than at the western end where there is a well-developed sand-shelf. It was ranked as having the highest conservation importance of the 15 coastal lakes surveyed in 1999 (Roden, 1999). The 2017 survey recorded 29 species, including seven Potamogeton species, one Potamogeton hybrid and three-species each of the charophytes Chara and Nitella, in 21 relevés. Euphotic depth was 5.2 m. The sand-shelf at the western end supports a population of what appears to be Chara muscosa (Roden, 1999; Roden et al., 2017). Chara muscosa is closely related to, and may even be an ecologically-induced form of Chara contraria (Stewart, 2017). It was described from Mullaghderg Lough, which remains its only definite world location, but no longer occurs in this site (Roden et al., 2017; Stewart, 2017).

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]
LA05.02i
LD03.01.01i
LD03.01.02i
ME01.03o
LF02.01.01b
MG05.09i
LI01b
HJ01.01i
ML07i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
MA04.02i

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

4.5 Documentation

NPWS (2013b) The Status of EU Protected Habitats and Species in Ireland. Habitat Assessments Volume 2. Version 1.0. Unpublished Report, National Parks and Wildlife Services. Department of Arts, Heritage and the Gaeltacht, Dublin, Ireland. O Connor, Á. (2015) Habitats Directive Annex I lake habitats: a working interpretation for the purposes of site-specific conservation objectives and Article 17 reporting. Unpublished Report, National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht, Ireland. Roden, C. M. (1999). A Survey of Coastal Lakes in Counties Galway, Mayo, Sligo and Donegal. Report produced for the Heritage Council. Unpublished. Roden, C., Murphy, P. and Ryan, J. (2017) A report on the 2017 fieldwork undertaken as part of the 2015-18 Najas lake survey for NPWS. Unpublished Report to the National Parks and Wildlife Service, DCHG, Dublin. Stewart, N.F. and Church, J.M. (1992). Red Data Books of Britain and Ireland: Stoneworts. JNCC. Petersborough. Stewart, N.F. (2017) A Review of the Irish Records for Stoneworts (Charophytes). Unpublished Report to the National Parks and Wildlife Service, DCHG, Dublin.

5. SITE PROTECTION STATUS

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6. SITE MANAGEMENT

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6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

 

7. MAP OF THE SITE

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INSPIRE ID:IE.NPWS.PS.NATURA2000.SAC.IE0001228
Map delivered as PDF in electronic format (optional)
Yes
No

SITE DISPLAY