Dataset

DFO Pacific: Ocean Salmon Program - Ricker Beam Trawl Juvenile Salmon Study (1990-1993)

OBIS Canada MeasurementOrFact Open in mapper Explore occurrences

During the period of 1990 to 1993, Robin J. LeBrasseur and N. Brent Hargreaves led a juvenile salmon migration research project off the west coast of Vancouver Island BC. This included the development of surface beam trawl gear that could be deployed from a large trawl vessel (CCGS W.E. Ricker) and operated in an offshore environment. This dataset contains the research survey catch data and individual fish examinations data.

Citation: Patten B (2021): DFO Pacific: Ocean Salmon Program - Ricker Beam Trawl Juvenile Salmon Study (1990-1993). v1.5. Fisheries and Oceans Canada. Dataset/Samplingevent. http://ipt.iobis.org/obiscanada/resource?r=rickerbeam&v=1.5

Published: March 22, 2022 at 20:44

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

121,176
occurrence records
231,941
measurements and facts
72
taxa
52
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 121,176
100.0%
maximumDepthInMeters 121,176
100.0%
minimumDepthInMeters 121,176
100.0%
occurrenceStatus 75,087
62.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 121,176
100.0%
NO_ACCEPTED_NAME 3,588
3.0%

Measurement types

DNA derived data