Dataset

SOMBASE – Southern Ocean mollusc database: a tool for biogeographic analysis in diversity and evolution

Antarctic OBIS Open in mapper Explore occurrences

Databases and Geographical Information Systems are becoming increasingly popular tools for biogeographic analysis. The reliability of the analysis depends on the accuracy of the entered data and the ability to add changes in systematics and taxonomy. The main aim of the Southern Ocean Mollusc Database (SOMBASE) project is to set up a database linked with a GIS and user-friendly front end. This system allows for the inclusion of other taxa in the future. Currently the database consists of records for 950 shelled gastropod and 136 bivalve species and 2800 sites from the Southern Ocean.The database contains fields including: 1) Taxonomic authorship, synonyms, higher level classifications, diagnostic morphological characters, and ecological features; 2) Distributional information including substrate and depth; 3) Bibliographic information.The maps can display selected sites based on any query of any field or combination of fields in the database. An online version of the database is available with distribution maps for all taxonomic levels (www.antarctica.ac.uk/SOMBASE). SOMBASE is a contribution to the Biogeiegraphic Atlas of the Southern Ocean

Published: June 26, 2019 at 16:26

URL: https://ipt.biodiversity.aq/resource?r=sombase_southern_ocean_mollusc_database

Huw J Griffiths
British Antarctic Survey

J.Alistair Crame
British Antarctic Survey

Anton Van de Putte

14,322
occurrence records
1,040
taxa
1,007
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 14,322
100.0%
eventDate 2,501 1
17.5%
maximumDepthInMeters 1,246
8.7%
minimumDepthInMeters 1,247
8.7%
occurrenceStatus 14,322
100.0%
scientificName 1,038
7.2%
scientificNameID 1,038
7.2%

Quality flags

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

Flag Dropped Records
DEPTH_EXCEEDS_BATH 2,423
16.9%
ON_LAND 1,980
13.8%
NO_DEPTH 1,246
8.7%
NO_MATCH 1,038
7.2%
NO_ACCEPTED_NAME 48
0.3%
NOT_MARINE 2
0.0%

Measurement types

DNA derived data