Harbour porpoises, white-beaked dolphins and minke whales in North Sea - Land surveys -
Caroline Weir, Ketos Ecology
Karen Stockin, Sea Watch Foundation
Weir, C. 2007. Harbour porpoises, white-beaked dolphins and minke whales in North Sea - Land surveys -. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/423) 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.
Spatial and temporal trends in the distribution of the harbor porpoise Phocoena phocoena, white-beaked dolphin Lagenorhynchus albirostris, and minke whale Balaenoptera acutorostrata were assessed at a coastal North Sea study area in Aberdeenshire, Scotland. Between March 1999 and October 2001, cetacean data were collected using both land- and vessel-based survey methods. A total of 174 sightings of these three cetacean species was recorded during approximately 330 h of combined survey effort (228 h land-based and 102 h vessel-based).
The data were collected to analyze the distribution and seasonality of cetacean species in the region, in order to provide recommendations for their long-term conservation and management.
This dataset is accompanied with a vessel survey, a separate dataset available on OBIS-SEAMAP.
Most survey efforts were conducted on shore-based platforms, hence they are represented as points on the map while a few are represented as lines where observers moved around during the surveys.
Attributes described below represent those in the original dataset provided by the provider.
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 in dataset provided
|Rays and sharks||0|
|Latitude||57.10 - 57.34|
|Longitude||-2.06 - -1.92|
|Coord. prec.||6 decimal digits|
|Data type||Animal sighting|
|Effort||YES (ID: 424)|
|Sharing policy||CC-BY-NC (Minimum)|
|Also availalbe from||iOBIS|
|See metadata in static HTML|
|See metadata in FGDC XML|
|See download history / statistics|