Dataset

Harbour porpoises, white-beaked dolphins and minke whales in North Sea - Land surveys -

OBIS-SEAMAP Open in mapper Explore occurrences

Original provider: Caroline Weir Dataset credits: Caroline Weir, Ketos Ecology Karen Stockin, Sea Watch Foundation Abstract: 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).

Citation: Weir, C. 2007. Harbour porpoises, white-beaked dolphins and minke whales in North Sea - Land surveys -. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/76209c06.

Published: October 07, 2025 at 22:38

URL: http://ipt.env.duke.edu/resource?r=zd_423

Caroline Weir
Ketos Ecology

103
occurrence records
3
taxa
3
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 103
100.0%
maximumDepthInMeters 103
100.0%
minimumDepthInMeters 103
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_DEPTH 103
100.0%

Measurement types

DNA derived data