Dataset

Bolus Herbarium Algal Specimen Database

AfrOBIS Open in mapper Explore occurrences

The Bolus Herbarium algal collection is the most comprehensive collection in South Africa. Also a reasonable collection of foreign material form various parts of the world. The latter do not form part of the database material.

Citation: Bolus Herbarium Algal Specimen Database

Published: December 02, 2020 at 14:08

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

University of Cape Town Botany Department
University of Cape Town Botany Department

Terry Trinder-Smith
University of Cape Town; Botany Department

Ursula von St Ange
CSIR / SADCO / AfrOBIS

9,664
occurrence records
611
taxa
481
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 9,664
100.0%
eventDate 1,027
10.6%
minimumDepthInMeters 9,664
100.0%
occurrenceStatus 9,664
100.0%
scientificNameID 90 16
1.1%

Quality flags

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

Flag Dropped Records
ON_LAND 4,816
49.8%
DEPTH_EXCEEDS_BATH 679
7.0%
NO_MATCH 102
1.1%
NO_ACCEPTED_NAME 28
0.3%
WORMS_ANNOTATION_REJECT_AMBIGUOUS 9
0.1%
MARINE_UNSURE 2
0.0%

Measurement types

DNA derived data