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.
Owner: Institute of Marine Research