Dataset

Duke Harbor Porpoise Tracking

OBIS-SEAMAP Open in mapper Explore occurrences

Original provider: Duke University Marine Laboratory Dataset credits: Duke University Marine Laboratory Abstract: These data were obtained from harbor porpoises (Phocoena phocoena) equipped with satellite-linked transmitters in the Gulf of Maine. All porpoises were obtained from herring weirs on the island of Grand Manan, New Brunswick, Canada (44 deg 45' N, 67 deg 45' W) during the summer months (July - September). Details on each porpoise are given in the summary table. Positional data are obtained via Service ARGOS (http://www.argosinc.com/). See Read and Westgate (1997) for complete details of tagging methods.

Citation: Read, A. 2012. Duke Harbor Porpoise Tracking. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/61f6583a.

Published: October 07, 2025 at 18:15

URL: http://ipt.env.duke.edu/resource?r=zd_83

5,933
occurrence records
1
taxa
1
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 5,933
100.0%
maximumDepthInMeters 5,933
100.0%
minimumDepthInMeters 5,933
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 5,933
100.0%
ON_LAND 125
2.1%

Measurement types

DNA derived data