Accredited through the MEDIN partnership, and core-funded by the Department for the Environment, Food and Rural Affairs (Defra) and the Scottish Government, DASSH provides tools and services for the long-term curation, management and publication of marine species and habitats data, within the UK and internationally.

Citation: Marine Biological Association of the UK (MBA); (2016): DASSH: The UK Archive for Marine Species and Habitats Data

Published: September 17, 2025 at 08:34

URL: http://ipt.vliz.be/eurobis/resource?r=dassh

Marine Biological Association of the UK
Marine Biological Association of the UK

Daniel Lear
Marine Biological Association of the UK

314,317

occurrence records

326,487

measurements and facts

3,108

taxa

2,134

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	30,030		9.6%
eventDate	3		0.0%
maximumDepthInMeters	43,552		13.9%
minimumDepthInMeters	45,355		14.4%
scientificNameID	23	415	0.1%

Quality flags

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

Flag	Records
NO_DEPTH	43,552	13.9%
DEPTH_EXCEEDS_BATH	17,028	5.4%
ON_LAND	5,591	1.8%
NO_ACCEPTED_NAME	769	0.2%
NO_MATCH	438	0.1%
MIN_DEPTH_EXCEEDS_MAX	168	0.1%
MARINE_UNSURE	39	0.0%
NOT_MARINE	15	0.0%

The UK Archive for Marine Species and Habitats Data

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data