Irish Spatial Data Exchange
Inshore boat-based cetacean Survey 2012
A single platform line-transect survey using distance sampling was carried out off the north coast of Ireland on 9 August 2012. Sea conditions were excellent throughout the survey with 100% of survey effort carried out in sea-state ≤3 and 63.5% in sea-state ≤1. A total of 178 km of track-line was surveyed in 654 minutes (10.9 hrs). Five acoustic events were logged during the survey: three harbour porpoise records and one each of common dolphin and Risso’s dolphin. All acoustic events were recorded concurrent with visual sightings. Thus most (77%) of the harbour porpoise sightings and all minke whale sightings obtained during the survey were not detected acoustically. A total of 33 sightings were recorded comprising 158 individuals among five marine mammal species, which suggests good species diversity in the area at this time of year. These included 11 harbour porpoise sightings, one sighting of a large group of common dolphins, two sightings of Risso’s dolphins and six sightings of single minke whales.
Simple
- Alternate title
-
Inshore boat-based surveys for cetaceans 2012
- Date (Publication)
- 2022-07-08
- Citation identifier
- https://data.gov.ie/dataset/ / Inshore boat-based cetacean Survey 2011
- Purpose
-
These surveys are aimed at filling gaps in coverage to obtain a better understanding of the distribution and abundance of cetaceans in Irish waters. They can also provide good baseline data for monitoring purposes and may in time enable the identification of areas with higher relative abundance and diversity of cetaceans and potentially important habitats for these species.
- Status
- Completed
- Point of contact
-
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
-
GEMET - INSPIRE themes, version 1.0
-
-
Species distribution
-
-
GEMET - Concepts, version 4.2.3
-
-
biota, biodiversity, marine fauna, cetacean
-
-
National Parks and Wildlife Service
-
-
National Parks and Wildlife Service, NPWS, marine, mammal, biodiversity
-
-
ISO 3166
-
-
Ireland
-
- Use limitation
- Use limitation
- Access constraints
- Other restrictions
- Other constraints
-
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
- 2012-08-01
- End date
- 2012-10-01
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%202012.zip Dataset
- Hierarchy level
- Dataset
Conformance result
- Title
-
INSPIRE Data Specification on Provide Spatial Data Theme keyword
- Alternate title
-
INSPIRE Data Specifications v3.0
- Date (Publication)
- 2011-06-15
- Explanation
-
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
-
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
-
During the line-transect survey 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 radial distance of the sighting from the vessel were recorded. These data were communicated to the recorder in the wheelhouse via two-way 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. Distance sticks were made for observers using the Heinemann Equation (Heinemann 1981) which were used to aid distance estimation.
Some data was modified to comply with GDPR legislation and open data publication guidelines.
Metadata
- File identifier
- 2e7e851a-0ea7-4cb6-b0be-1e82884cec35 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-11-20T18:16:43
- 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
)))
