Koster historical biodiversity assessment
Citation
Nilsson C (2024). Koster historical biodiversity assessment. Version 1.4. Wildlife.ai. Occurrence dataset. https://ipt.gbif.org.nz/resource?r=koster_historical_assessment&v=1.4 https://doi.org/10.15468/rzhmef accessed via GBIF.org on 2024-12-12.Description
Dataset of species records extracted from video footage recorded by remotely operated vehicles (ROVs) in the marine protected area Kosterhavets nationalpark on the Swedish west-coast. The original movies were collected during 1997-2023. This data set is based on videos of 70 transects across slopes and rock walls in the National Park at depths between 7-105 m. Species records were extracted from the movies using Yolov8 model, while depth information was extracted with the easyOCR python package from the ROV video overlays. Original videos are archived and accessible at Tjärnö Marine Laboratory’s (Univerisity of Gothenburg). The analysis was performed using the Swedish platform for subsea image analysis (www.subsim.se). We acknowledge the support of the technical officers and ROV pilots at Tjärnö Marine Laboratory, in particular Tomas Lundälv, Roger Johannesson, and Joel White.
Sampling Description
Study Extent
Archived ROV footage from the area west of Yttre Vattenholmen was utilized. All footage available with sufficient depth information was utilized. Footage was collected for various purposes, therefore sampling frequency & temporal resolution varies.Sampling
Sampling was performed by ROV from Tjärnö Marine Laboratory. Transects were taken for various purposes and are non-standardized. Thus, time spent at each depth and distance to substrate may vary. Transects are defined as consecutive filming of the study site until departure and may have depths removed if the ROV was not filming the habitat of interest for this study (hard substrate) at these depths. Additionally, inconsistency may exist between substrate depths and ROV depths where the ROV was not filming perpendicular to the seafloor. For further information, contact Joel White or Christian Nilsson.Quality Control
Average maxcount per depth (organismQuantity) was added to provide insight regarding false positives. If individualCount for an observation is significantly higher than organismQuantity a false positive may be possible. For further information, contact Christian Nilsson.Method steps
- ROV depth for each image frame of videos was extracted from the video overlay using the EasyOCR python package. Depth was connected to YOLOv8 model observations through frame number in R, after which maximum and mean individual count was summarized from each transect for each taxon.
Taxonomic Coverages
Geographic Coverages
Data collected from the area west of the island of Yttre Vattenholmen. For additional information, feel free to contact authors.
Bibliographic Citations
- Koster historical invertebrate model - SUBSIM 17tx. (model used to generate annotations) - https://doi.org/10.5281/zenodo.13589902
Contacts
Christian Nilssonoriginator
position: Researcher
University of Gothenburg
Anders Zornsgatan 34B
Gothenburg
412 72
Västra Götaland
SE
Telephone: 0730682795
email: christian.nilsson7@outlook.com
userId: https://orcid.org/0009-0005-6356-2152
Christian Nilsson
metadata author
position: Researcher
University of Gothenburg
Anders Zornsgatan 34B
Gothenburg
412 72
Västra Götaland
SE
Telephone: 0730682795
email: christian.nilsson7@outlook.com
userId: https://orcid.org/0009-0005-6356-2152
Victor Anton
publisher
position: GM
Wildlife.ai
NZ
email: victor@wildlife.ai
userId: https://orcid.org/0000-0002-1471-5571
Christian Nilsson
principal investigator
position: Researcher
University of Gothenburg
Anders Zornsgatan 34B
Gothenburg
412 72
Västra Götaland
SE
Telephone: +4673-068 27 95
email: christian.nilsson7@outlook.com
userId: https://orcid.org/0009-0005-6356-2152
Emil Burman
programmer
position: Researcher
University of Gothenburg
Medicinaregatan 7B
Gothenburg
413 90
Västra Götaland
SE
email: emil.burman2@gu.se
userId: https://orcid.org/0009-0009-2297-0917
Jurie Germishuys
programmer
position: Data Scientist
Combine Control Systems AB
Västra Hamngatan 8
Gothenburg
411 17
Västra Götaland
SE
email: jurie.germishuys@combine.se
userId: https://orcid.org/0009-0007-0923-2210
Matthias Obst
owner
position: Researcher
University of Gothenburg
Medicinaregatan 7B
Gothenburg
413 90
Västra Götaland
SE
Telephone: +4676-618 38 27
email: matthias.obst@marine.gu.se
homepage: https://www.gu.se/om-universitetet/hitta-person/matthiasobst
userId: https://orcid.org/0000-0003-0264-9631
Joel White
administrative point of contact
position: Research Engineer
University of Gothenburg, Tjärnö Marine Laboratory
Laboratorievägen 10
Strömstad
452 96
Västra Götaland
SE
Telephone: +46 31-786 96 03
email: joel.white@gu.se
homepage: https://www.gu.se/en/about/find-staff/joelwhite
userId: https://orcid.org/0000-0002-7052-1667
Christian Nilsson
administrative point of contact
position: Researcher
University of Gothenburg
Anders Zornsgatan 34B
Gothenburg
412 72
Västra Götaland
SE
Telephone: 0730682795
email: christian.nilsson7@outlook.com
userId: https://orcid.org/0009-0005-6356-2152