Data · dataset · 2023
Harbour Porpoise Surveys 2008
Listed in Data.gov.ie
A survey of harbour porpoises (Phocoena phocoena) was carried out at five sites (North County Dublin, Dublin bay, Cork coast, Roaringwater bay cSAC and Galway bay) to derive density and abundance estimates.
Description
Single platform line-transect surveys were carried out on six days at each site between July and September 2008. Distance sampling was used to derive g(0), which is the density of harbour porpoises on the track of the vessel.
Abundance estimates were calculated using the track-line as the sample and the sighting as the observation. During 28 survey days a total of 354 track-lines were surveyed for a total distance of nearly 20,000 km in seastate ≤2. From the 269 sightings of a total of 496 individual harbour porpoise were recorded.
Read the rest (1 more)
There were 13 sightings with a total of 171 common dolphins (Delphinus delphis), eight sightings of single minke whales (Balaenoptera acutoratrata) and one sighting of 20 bottlenose dolphins (Tursiops truncatus). Five sightings with a total of 18 dolphins were not identified to species level.
Links
Get the data
- Dataset npws.ie/sites/default/files/general/HPSI08.zip ↗
download · from data gov ie
Where it is published
- Data.gov.ie dataset page data.gov.ie/dataset/harbour-porpoise-surveys-2008 ↗
landing page · from data gov ie
Catalogue records · 1
- CKAN API data.gov.ie/api/3/action/package_show?id=a409d503-0c9c-44b6-b887-09e3addc9… ↗
metadata API · from data gov ie
Topics
- From keywords
- Earth & Environmental Science · Life Sciences · Ocean & Atmospheric Science · Social Science
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Data.gov.ie | a409d503-0c9c-44b6-b887-09e3addc9dc5 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data gov ie | connector:data_gov_ie@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data gov ie | connector:data_gov_ie@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data gov ie | connector:data_gov_ie@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data gov ie | connector:data_gov_ie@1.0.0 | |
| created_date | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| description | source · data gov ie | connector:data_gov_ie@1.0.0 | /notes |
| license | source · data gov ie | connector:data_gov_ie@1.0.0 | /license_id |
| publication_date | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| title | source · data gov ie | connector:data_gov_ie@1.0.0 | /title |
| updated_date | source · data gov ie | connector:data_gov_ie@1.0.0 |