Dataset

Marine and Coastal Management - Demersal Surveys (AfrOBIS)

AfrOBIS Open in mapper Explore occurrences

Marine and Coastal Management (MCM)'s demersal data set has been collected from cruises around the South African Coast, and currently contains 201741 of 230 families.

Citation: Marine and Coastal Management - Demersal Surveys

Published: December 02, 2020 at 14:09

License: This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License

URL: http://ipt.iobis.org/afrobis/resource?r=mcm_demersal

Contacts:

Marine and Coastal Management; Department of Environmental Affairs and Tourism
Marine and Coastal Management; Department of Environmental Affairs and Tourism

Rob Cooper
Marine and Coastal Management; Department of Environmental Affairs and Tourism

Ursula von St Ange
CSIR / SADCO / AfrOBIS

201,741
occurrence records
712
taxa
506
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 201,741
100.0%
maximumDepthInMeters 98,105
48.6%
minimumDepthInMeters 98,105
48.6%
occurrenceStatus 201,741
100.0%
scientificNameID 5,205 2
2.6%

Quality flags

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

Flag Dropped Records
NO_DEPTH 98,105
48.6%
DEPTH_EXCEEDS_BATH 16,032
7.9%
ON_LAND 6,847
3.4%
NO_MATCH 3,249
1.6%
WORMS_ANNOTATION_RESOLVABLE_LOSS 1,717
0.9%
NO_ACCEPTED_NAME 47
0.0%
MARINE_UNSURE 30
0.0%

Measurement types

DNA derived data