Marine bottom organisms in prospective marine protected area Froan-Sularevet, Norway

Occurrences of marine bottom organisms at 20–500 m depth in the Froan-Sularevet area outside Frøya in Trøndelag, Norway from 30 August – 9 September 2025. The study area is in or near a proposed marine protected area: faktaark.naturbase.no/?id=VP00001512 The data was collected by Akvaplan-niva during an underwater video survey of 18 transects with a remotely operated diving vessel (ROV). Taxonomic identification was done in the field, by an expert in vulnerable marine organisms, from high definition video from the ROV.

Depth and position was obtained via the ROV's navigation software (EIVA NaviPac) and later corrected. When possible, each individual organism was identified and the number of organisms present in one second of video is reported in individualCount. Some organisms, were uncountable using visual inspection and are recorded as present with no individual count.