Dataset

Porbeagle shark surveys of Atlantic Canada

OBIS Canada Open in mapper Explore occurrences

A dedicated porbeagle shark survey using shark longline gear was conducted in 2007 and 2009 to provide an estimate of shark distribution and abundance. Longline gear was fished throughout the water column, from surface to bottom and back to surface. The survey area consisted of about 70 stations distributed in a grid pattern across the Scotian Shelf, in the Gulf of St. Lawrence and off of southern Newfoundland.

Citation: Campana, Steven, 2014. Maritimes Shark Surveys (2007, 2009). Version 1 In OBIS Canada Digital Collections. Bedford Institute of Oceanography, Dartmouth, NS, Canada. Published by OBIS, Digital http://www.iobis.org/. Accessed on –INSERT DATE

Published: April 16, 2021 at 11:14

URL: http://ipt.iobis.org/obiscanada/resource?r=mar_sharksurvey

1,540
occurrence records
16
taxa
12
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 1,540
100.0%
eventDate 1,540
100.0%
maximumDepthInMeters 1,540
100.0%
minimumDepthInMeters 1,540
100.0%
occurrenceStatus 1,540
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 1,540
100.0%

Measurement types

DNA derived data