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SCANS I cetacean sightings 1994
Sea Mammal Research Unit, University of St. Andrews
Dataset credit
Sea Mammal Research Unit, University of St. Andrews
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Contacts
| Role | Name | Organization | |
|---|
| Primary contact |
Claire Lacey |
Sea Mammal Research Unit, University of St. Andrews |
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| Data entry |
Ei Fujioka |
Duke University |
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Citation
Lacey, C. 2015. SCANS I cetacean sightings 1994. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1183) on yyyy-mm-dd. Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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Abstract
Shipboard and aerial line transect surveys were conducted of the North Sea and adhacent waters to provide accurate and avundance estimates of small cetaceans. Known as the SCANS survey, it was conducted in summer 1994. Shipboard transects covered 20,000 km and aerial transects covered 7000km. Harbour porpoise (Phocoena phocoena), white-beaked dolphin (Lagenorhynchus albirostris) and minke whale (Balaenoptera acutorostrata) dominated the data.
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Purpose
N/A
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Supplemental information
N/A
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References
Hammond, P. S., et al. 2002. Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. Journal of Applied Ecology. 39.2: 361-376.
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Attributes
Overview
This section explains attributes included in the original dataset.
OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only.
Should you need other attributes described here, you are encouraged to contact the data provider.
Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downloadable online. Other attributes may be obtained upon provider's permission.
Attributes in dataset
| Attribute (table column) | Description |
|---|
| oid | Unique ID number (generated by OBIS-SEAMAP) |
| dataset_origin | Origin of the data; Always "SCANS I" |
| id | definition not provided |
| ves | definition not provided |
| vessid | Vessel ID |
| sighting_no | Sighting No. |
| obs_date | Date of observation |
| obs_time | Time of the observation (local time zone) |
| latitude | Latitude in decimal degrees |
| longitude | Longitude in decimal degrees |
| platform | definition not provided |
| hour_end | End time (hour) of sighting |
| minute_end | End time (minute) of sighting |
| second_end | End time (second) of sighting |
| radial_dist | Radial distance |
| reticle | Reticle |
| angle | Angle |
| observer | Observer ID |
| cue_type | Cue type |
| sp_obs | Species name recorded |
| sp_tsn | Taxonomic Serial Number added by OBIS-SEAMAP |
| behaviour | Behavior |
| direction | Direction |
| obs_count | Best estimate of number of animals |
| low_number | Low estimate of number of animals |
| high_number | High estimate of number of animals |
| calves | Number of calves |
| effort_on | Indicate if the sighting was made on effort (1) or not. |
| leg | definition not provided |
| problem_data | definition not provided |
| notes | Notes |
| geom | Geometry field added by OBIS-SEAMAP |
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| OBIS-SEAMAP ID | 1183 |
| Seabirds | 0 |
| Marine mammals | 2,558 |
| Sea turtles | 0 |
| Rays and sharks | 0 |
| Other species | 0 |
| Non spatial | 0 |
| Non species | 242 |
| Total | 2,800 |
| Date, Begin | 1994-06-27 |
| Date, End | 1994-07-25 |
| Temporal prec. | 111111 |
| Latitude | 48.33 - 61.93 |
| Longitude | -11.39 - 12.52 |
| Coord. prec. | 6 decimal digits |
| Platform | Boat |
| Data type | Animal sighting |
| Effort | YES (ID: 1184) |
| Traveled (km) | 19,774 |
| Effort hours | 1,059 |
| Registered | 2014-07-02 |
| Updated | 2015-10-16 |
| Status | Published |
Sharing policy |
CC-BY-NC (Minimum) |
| Shared with |
GBIF
OBIS |
| See metadata in static HTML |
| See metadata in FGDC XML |
| See download history / statistics |
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