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

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

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	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%

Marine and Coastal Management - Demersal Surveys (AfrOBIS)

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data