Irish Spatial Data Exchange
Inshore boat-based cetacean Survey 2011
Concurrent visual and acoustic surveys for cetaceans were carried out in two survey blocks in the Irish Sea to investigate species distribution, relative abundance and absolute abundance where possible.
Single platform line-transect surveys were carried out in the northern Irish Sea in July and in the southern Irish Sea in August 2011. During the two surveys, we carried out 348km of survey effort along 23 track-lines of which 100% of the northern Irish Sea survey and 79% of the southern Irish Sea survey were in sea-state ≤3. We recorded a total of 71 cetacean sightings comprising 111 individuals of two species. In addition there were five seal sightings of two species and a single sighting of a basking shark. Harbour porpoise was by far the most abundant species followed by minke whale. Grey seal was the most frequent seal species with only a single sighting of a common seal.
Simple
- Alternate title
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Inshore boat-based surveys for cetaceans 2011
- Date (Publication)
- 2022-07-08
- Citation identifier
- https://data.gov.ie/dataset/ / Inshore boat-based cetacean Survey 2011
- Purpose
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To investigate cetacean species distribution, relative and absolute abundance in the Irish sea.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role Department of Housing, Local Government and Heritage
National Parks and Wildlife Service
Point of contact
- Maintenance and update frequency
- As needed
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GEMET - INSPIRE themes, version 1.0
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Species distribution
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GEMET - Concepts, version 4.2.3
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biota, biodiversity, marine fauna, cetacean
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National Parks and Wildlife Service
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National Parks and Wildlife Service, NPWS, marine, mammal, biodiversity
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ISO 3166
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Ireland
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- Use limitation
- Use limitation
- Access constraints
- Other restrictions
- Other constraints
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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/
- Spatial representation type
- Vector
- Denominator
- 50000
- Language
- English
- Character set
- UTF8
- Topic category
-
- Environment
))
- Begin date
- 2011-07-01
- End date
- 2011-12-01
Vertical extent
- Minimum value
- 0
- Maximum value
- 1014
Vertical CS
Vertical datum
- Reference system identifier
-
https://www.opengis.net/def/crs/EPSG/0/4326
/
4326
EPSG Geodetic Parameter Dataset EPSG 2009-11-25
- Distribution format
-
Name Version Esri shapefile
v10+
- Distributor contact
-
Organisation name Individual name Electronic mail address Role Department of Housing, Local Government and Heritage
National Parks and Wildlife Service
Point of contact
- OnLine resource
-
Protocol Linkage Name zip
https://www.npws.ie/sites/default/files/general/NPWS%20Inshore%20Cetacean%20Surveys%202011.zip Dataset
- Hierarchy level
- Dataset
Conformance result
- Title
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INSPIRE Data Specification on Provide Spatial Data Theme keyword
- Alternate title
-
INSPIRE Data Specifications v3.0
- Date (Publication)
- 2011-06-15
- Explanation
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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.
- Pass
- No
Conformance result
- Title
-
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
- Alternate title
-
INSPIRE Interoperability Regulation
- Date (Publication)
- 2010-12-08
- Explanation
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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
- Pass
- No
- Statement
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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 in LOGGER and the angle of the sighting from the track of the vessel and the radial distance of the sighting from the vessel recorded. The angle was recorded to the nearest degree via an angle board attached to the vessel immediately in front of each observer. These data were communicated to the recorder in the wheelhouse via two-way radio. Accurate distance estimation is essential for distance sampling. Distance sticks were made for observers using the Heinemann Equation (Heinemann, 1981) which were used to aid distance estimation.
Metadata
- File identifier
- e74634ac-9603-4bd5-b8d6-15b2ebe82425 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-11-20T18:13:47
- Metadata standard name
-
ISDI Metadata Profile
- Metadata standard version
-
1.2
- Metadata author
-
Organisation name Individual name Electronic mail address Role Department of Housing, Local Government and Heritage
National Parks and Wildlife Service
Author
)))
