Dataset

NEFSC Harbor Porpoise 1991

OBIS-SEAMAP Open in mapper Explore occurrences

Original provider: NOAA Northeast Fisheries Science Center (NEFSC) Dataset credits: National Marine Fisheries Service Abstract: The ship survey was performed from 22 July 1991 to 30 August 1991 to estimate the abundance and spatial distribution of harbor porpoises. The study area, covering approximately 13,300 nm , was from Port Clyde, ME to 2 St. John, New Brunswick over to the Nova Scotian coast, up to Liverpool, Nova Scotia.

Citation: Palka, D. 2013. NEFSC Harbor Porpoise 1991. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/f095db80.

Published: October 07, 2025 at 20:32

URL: http://ipt.env.duke.edu/resource?r=zd_288

Debi Palka
NOAA Northeast Fisheries Science Center

782
occurrence records
15
taxa
11
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 782
100.0%
maximumDepthInMeters 782
100.0%
minimumDepthInMeters 782
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 782
100.0%
ON_LAND 2
0.3%

Measurement types

DNA derived data