L o a d i n g
Overviewbiodiversitybiotacetaceanenvironmentirelandmammalmarinemarine faunanational parks and wildlife servicenpwsspecies distribution
A visual survey of harbour porpoises (Phocoena phocoena) was carried out in 2015 in the Roaringwater Bay and Islands SAC in order to derive local density and abundance estimates. Static Acoustic Monitoring (SAM) through the deployment of C-PODs was carried out at two sites within the SAC using a randomised sampling design.
Additional Information
KeyValue
Conforms To["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.", "http://www.opengis.net/def/crs/EPSG/0/4326"]
Contact Emaildatadelivery@housing.gov.ie
Contact NameDepartment of Housing, Local Government and Heritage
FrequencyOther
Guidhttps://data.gov.ie/dataset/d71bfce8-b5ad-48d3-914d-8d5708e4b967
Harvest Object Id002feea5-71f2-464e-b6f2-1eece9de66ce
Harvest Source Id01350574-268d-4abb-b9b4-8108224932c4
Harvest Source Titledata.gov.ie - Environment
Identifierd71bfce8-b5ad-48d3-914d-8d5708e4b967
Issued2022-05-31
Language["http://publications.europa.eu/resource/authority/language/ENG"]
Modified2026-06-03T02:25:54
ProvenanceDuring each transect the position of the survey vessel was tracked continuously through a GPS receiver connected to a laptop computer, while survey effort including environmental conditions (sea-state, wind strength and direction, glare, etc.) were recorded every 15 minutes using LOGGER software (IFAW). 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 estimated radial distance of the sighted animal(s) from the vessel were recorded. These data were communicated to the recorder in the wheelhouse via VHF radio. The angle was recorded to the nearest degree using an angle board attached to the vessel immediately in front of each observer. Accurate distance estimation is essential for distance sampling. Measuring sticks (Heinemann, 1981) were made by each primary observer to assist in distance estimation.
Some data was modified to comply with GDPR legislation and open data publication guidelines.
Publisher NameDepartment of Housing, Local Government and Heritage
Publisher Urihttps://data.gov.ie/organization/department-of-housing-planning-community-and-local-government
Spatial{"type":"Polygon","coordinates":[[[-10.650444030762, 50.807923689449],[-10.650444030762, 55.993470564449], [-5.289115905762, 55.993470564449], [-5.289115905762, 50.807923689449], [-10.650444030762, 50.807923689449]]]}
Temporal End2015-11-06
Temporal Start2015-06-06
Theme["http://publications.europa.eu/resource/authority/data-theme/ENVI", "Environment"]
Urihttps://data.gov.ie/dataset/d71bfce8-b5ad-48d3-914d-8d5708e4b967