8adfeee6-2171-4393-a5ab-1b625eec9c4b National Parks and Wildlife Service Department of Housing, Local Government and Heritage Ecological Data Manager +353-1-8882000 n/a National Parks and Wildlife Service 90 North King Street Dublin 7 D07 N7CV Ireland datadelivery@housing.gov.ie 2023-11-14T15:42:41 ISDI Metadata Profile 1.2 EPSG Geodetic Parameter Dataset EPSG 2009-11-25 4326 https://www.opengis.net/def/crs/EPSG/0/4326 Small Cetacean Site Survey Investigations 2008 Small cetacean survey 2008 2022-07-08 Small Cetacean Site Survey Investigations 2008 https://data.gov.ie/dataset/ A survey of small cetaceans was carried out at three sites (Carnsore Point, Blasket Islands cSAC and Donegal bay) to derive density and abundance estimates using distance sampling. Single platform line transect surveys were carried out on three days at each between July and September 2008. During nine days of surveys, a total of 121 track-lines were surveyed of a total distance of 622.80 km in sea-state ≤2. From the total of 63 sightings, 122 individual harbour porpoise (Phocoena phocoena) were recorded. There were also four sightings of single minke whales (Balaenoptera acutoratrata), two sightings of bottlenose dolphins (Tursiops truncatus) with a total of 26 individuals and one sighting of two common dolphins (Delphinus delphis). To derive density and abundance estimates using distance sampling of small cetaceans was carried out at three sites Carnsore Point, Blasket Islands cSAC and Donegal bay. National Parks and Wildlife Service Department of Housing, Local Government and Heritage Ecological Data Manager +353-1-8882000 n/a National Parks and Wildlife Service 90 North King Street Dublin 7 D07 N7CV Ireland datadelivery@housing.gov.ie Species distribution GEMET - INSPIRE themes, version 1.0 GEMET 2008-12-05 biota, biodiversity, marine fauna, cetacean GEMET - Concepts, version 4.2.3 2021-12-06 National Parks and Wildlife Service, NPWS, marine, mammal, biodiversity National Parks and Wildlife Service NPWS 2012-07-20 Ireland ISO 3166 ISO Country List 2008-12-13 http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ Copyright Government of Ireland. This dataset was created by National Parks and Wildlife Service, Department of Housing, Local Government and Heritage. This copyright material is licensed for re-use under the Creative Commons Attribution 4.0 International licence. http://creativecommons.org/licenses/by/4.0/ 50000 environment -10.650444030762 -5.289115905762 50.807923689449 55.993470564449 2008-07-01 2008-09-30 0 1014 An Ordnance Datum or OD is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as AOD for "above ordnance datum". Usually mean sea level (MSL) is used for the datum. Malin Ordnance Datum Derivation of vertical height or depth (in metres) In the Republic of Ireland, OD for the Ordnance Survey of Ireland is Malin Ordnance Datum: the Mean Sea Level (MSL) at Portmoor Pier, Malin Head, County Donegal, between 1960 and 1969. 5731 EPSG Projection 5731 - Malin Head height Metres Derivation of Altitude OD based on Mean Sea Level, Malin Head 1960-1969 Esri shapefile v10+ National Parks and Wildlife Service Department of Housing, Local Government and Heritage Ecological Data Manager +353-1-8882000 n/a National Parks and Wildlife Service 90 North King Street Dublin 7 D07 N7CV Ireland datadelivery@housing.gov.ie.ie https://www.npws.ie/sites/default/files/general/NPWS%20Small%20cetacean%20Survey%202008.zip zip Dataset Small cetacean survey 2008 dataset published on NPWS website INSPIRE Data Specification on Provide Spatial Data Theme keyword INSPIRE Data Specifications v3.0 2011-06-15 The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment. false COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services INSPIRE Interoperability Regulation 2010-12-08 Level of conformance with the COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services false During each transect the position of the survey vessel was tracked continuously through a GPS receiver fed directly into a laptop while survey effort, including environmental conditions (sea-state, wind strength and direction, glare etc.) were recorded directly onto LOGGER software (©IFAW) every 15 minutes. When a sighting was made the position of the vessel was recorded immediately and the angle of the sighting from the track of the vessel and the angular distance of the sighting from the vessel recorded. These data were communicated to the recorder in the wheelhouse via a VHF radio. The angle was recorded to the nearest degree via an angle board attached to the vessel immediately in front of each observer. Accurate distance estimation is essential for distance sampling. During some surveys an orange buoy 225mm in diameter was towed 200m astern of the observers’ position on the survey vessel. This provided a reference point against which to estimate distances. Some data was modified to comply with GDPR /open data publication. The dataset was collected at Carnsore, Co. Wexford over three surveys on the 21st July, 22nd August and 13th September 2008 as part of the small cetacean site survey investigations.