Duke North Atlantic Harbor Porpoise Tracking

These data were obtained from harbour 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°45 N 67°45 W) during the summer months (July to 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. CURRENTNESS REFERENCE: ground condition SPATIAL REFERENCE INFORMATION - GEODETIC MODEL Horizontal Datum Name: D_WGS_1984 Ellipsoid Name: WGS_1984 Semi-major Axis: 6378137.000000 Denominator of Flattening Ratio: 298.257224