Data · dataset · 2026
Epimegabenthos based on seafloor georeferenced mosaics of the Hornsundbanken methane seep area
Listed in GBIF
This dataset consists of all the epimegabenthic fauna marked and enumerated from two seafloor georeferenced image mosaics from the shelf off Svalbard's Hornsund fjord (Hornsundbanken).
Description
Videos of the seafloor were obtained with the the remotely operated vehicle (ROV) Ægir from the research vessel Kronprins Haakon, maintaining an altitude of between 1 and 1.5 m. Images were extracted every 3 seconds via the free software ffmpeg and using the images and their associated navigation data, georeferenced mosaics were generated with Agisoft's Metashape software.
The two mosaics cover areas of 282 m2 and 164 m2 (446 m2 combined). The mosaics were inputted into Arc Desktop and using the Editor tool, all fauna were identified, marked and enumerated. All individuals were marked to obtain numbers for each taxon.
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Colonial or encrusting animals were outlined to obtain areal coverage. Identifications were made to the lowest possible level which was species in many cases, but only phylum in some cases. The faunal data from these mosaics were used in the publication by Sen et al. Fauna of shallow water Arctic seep not driven by water masses currently under review.
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Where it is published
- GBIF dataset page gbif.org/dataset/11cd1b4f-0d2e-418b-8b22-5e00f2308187 ↗
landing page · from gbif
- DOI doi.org/10.15468/y8wmxk ↗
DOI / persistent id · from gbif
Catalogue records · 1
- GBIF API api.gbif.org/v1/dataset/11cd1b4f-0d2e-418b-8b22-5e00f2308187 ↗
metadata API · from gbif
Topics
- From keywords
- Life Sciences
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| GBIF | 11cd1b4f-0d2e-418b-8b22-5e00f2308187 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · gbif | connector:gbif@1.0.0 | |
| concepts[field].anzsrc:group:3103 | enrichment · gbif | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[field].local:field:life-sciences | mapping · gbif | connector:gbif@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · gbif | keyword-concept-rules@1.0.0 | title+description (75%) |
| created_date | source · gbif | connector:gbif@1.0.0 | |
| description | source · gbif | connector:gbif@1.0.0 | /description |
| license | source · gbif | connector:gbif@1.0.0 | |
| publication_date | source · gbif | connector:gbif@1.0.0 | |
| spatial | source · gbif | connector:gbif@1.0.0 | |
| temporal | source · gbif | connector:gbif@1.0.0 | |
| title | source · gbif | connector:gbif@1.0.0 | /title |
| updated_date | source · gbif | connector:gbif@1.0.0 |