Dataset

Maritimes 4VSW Research Vessel Surveys

OBIS Canada MeasurementOrFact Open in mapper Explore occurrences

“4VSW” missions focus on the eastern half of the Scotian Shelf, and occur primarily in March, but sets in both February, and April are also present in the data. These missions use a unique stratification scheme intended to optimize the abundance estimates of cod. Collected data includes total catch in numbers and weights by species. Length frequency data is available for most species, as are the age, sex, maturity and weight information for a subset of the individual animals. Other data such as ageing material, genetic material, and stomach contents are often also collected, but are stored elsewhere.

Citation: Regnier-McKellar C (2021): Maritimes 4VSW Research Vessel Surveys. v1.3. Fisheries and Oceans Canada. Dataset/Samplingevent. http://ipt.iobis.org/obiscanada/resource?r=maritimes_4vsw_rv_surveys&v=1.3

Published: March 23, 2022 at 16:05

URL: http://ipt.iobis.org/obiscanada/resource?r=maritimes_4vsw_rv_surveys

Catriona Regnier-McKellar
Fisheries and Oceans Canada

213,950
occurrence records
499,999
measurements and facts
309
taxa
203
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 213,950
100.0%
maximumDepthInMeters 213,950
100.0%
minimumDepthInMeters 213,950
100.0%
scientificNameID 31
0.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 213,950
100.0%
WORMS_ANNOTATION_RESOLVABLE 31
0.0%
NO_ACCEPTED_NAME 7
0.0%

Measurement types

DNA derived data