Equinor cold-water coral surveys on the Norwegian continental shelf

Sampling event
Latest version published by Equinor on Mar 27, 2023 Equinor
Publication date:
27 March 2023
Published by:
CC-BY 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 339 records in English (342 KB) - Update frequency: as needed
Metadata as an EML file download in English (7 KB)
Metadata as an RTF file download in English (8 KB)


As part of regular environmental monitoring, Equinor performs cold-water coral surveys on the Norwegian continental shelf (NCS). Cold-water corals are key species in the marine environment that are known to form two important habitat types: coral reefs and coral gardens. On the NCS, the coral reefs are predominantly made up of the scleractinian coral Desmophyllum pertusum (formerly known as Lophelia pertusa), whereas the coral gardens consist of several soft coral species (gorgonians) grouped together. Both coral reefs and gardens are covered by Equinor’s surveys.

The coral surveys are performed using visual ROV inspection according to the Handbook of Species and Habitats of Environmental Concern (offshorenorge.no). The surveyed coral locations are provided as georeferenced polygons that may be plotted in any GIS application. For each surveyed location, the corals are evaluated based on coverage and health. For coral reefs, the approximate living area (m2) and living coral coverage (%) are reported along with a corresponding health classification (poor, fair, good or excellent). For coral gardens, the number of specimens per 25 m2 is reported along with a health classification equivalent to that of coral reefs. Note that both reefs and gardens often are present at the same location.

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 339 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Mogstad A A, Nilssen I (2023): Equinor cold-water coral surveys on the Norwegian continental shelf. v1.1. Equinor. Dataset/Samplingevent. https://ipt.gbif.no/resource?r=equinor-1&v=1.1


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Equinor. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: a494949a-1df7-4983-b422-451ff5905052.  Equinor publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Norway.




Aksel Alstad Mogstad
  • Metadata Provider
  • Originator
  • Point Of Contact
Sr Researcher
Ingunn Nilssen
  • Originator
Principal Researcher

Geographic Coverage

Equinor cold-water coral surveys on the Norwegian Continental Shelf.

Bounding Coordinates South West [64.304, 6.404], North East [66.086, 8.25]

Taxonomic Coverage

Cold-water corals

Order Alcyonacea
Species Desmophyllum pertusum

Temporal Coverage

Start Date / End Date 2013-04-28 / 2022-05-27

Additional Metadata

Purpose As part of Equinor's biodiversity position, we support the principle of sharing data from our impact assessments and environmental monitoring activities with the scientific community and the general public. We actively participate in a wide range of research programmes and industry partnerships to further build knowledge and develop innovative solutions to protect biodiversity.
Alternative Identifiers a494949a-1df7-4983-b422-451ff5905052