Definition: Number of trawlmarks observed on the seabed per 100 meters on video stations from the Mareano cruises. The data set is based on video observations and covers areas where the MAREANO mapping project has collected video material. The data set is based on the interpretation of video material of the surface of the seabed, collected using video rigs. Recording of the seabed surface was done along 200 m and 700 m long transects. All observed trawlmarks were recorded along each transect. The variable 'trawlmark' is numerical. Each point symbol is plotted on the coordinates of the midpoint of the transect, where the size of the symbol corresponds to the number of trawlmarks.

Updated: 25.03.2023
Owner: Institute of Marine Research


The data set can be used as a tool to estimate the extent to which a benthic community is affected by human activity. It can also be used to increase knowledge of fishing intensity in an area, as the number of trawlmarks has been shown to be a good indicator of fishing intensity.

Explanation of assessment of FAIR principles:

There have made various tests to evaluate datasets in relation to the FAIR criteria. These are our interpretations, which then assess the criteria in relation to standards and protocols used for spatial data in Norway and Europe. For more information on which calculations we use for each indicator, look at the details of FAIR assessments for each specific dataset.

FAIR status: 97%

Mareano status