Dataset

National Institute of Marine Sciences and Technologies - Trawling surveys

AfrOBIS Open in mapper Explore occurrences

Dataset from trawl surveys by the Laboratory of Marine Living Resources.

Citation: National Institute of Marine Sciences and Technologies, Republic of Tunisia Trawling Surveys. Republic of Tunisia.

Published: December 02, 2020 at 14:08

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

National Institute of marine sciences and technologies (INSTM)
National Institute of marine sciences and technologies (INSTM)

Malika Bel Hassen
National Institute of marine sciences and technologies (INSTM)

Ursula von St Ange
CSIR / SADCO / AfrOBIS

7,664
occurrence records
220
taxa
188
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 7,664
100.0%
eventDate 39
0.5%
maximumDepthInMeters 488
6.4%
minimumDepthInMeters 7,664
100.0%
occurrenceStatus 7,664
100.0%
scientificNameID 59
0.8%

Quality flags

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

Flag Dropped Records
NO_DEPTH 488
6.4%
DEPTH_EXCEEDS_BATH 83
1.1%
NO_MATCH 59
0.8%
ON_LAND 12
0.2%

Measurement types

DNA derived data