The introduction to the meeting was given by Terje Sørvik https://no.wikipedia.org/wiki/Terje_S%C3%B8rvik
Essentially he said that the meeting was being held to address concerns about the impact of taretråling and in general seaweed harvesting and a much deeper concern that not enough was known about the consequences.
The next Talk was given by Henning steen – a great deal of information about the seaweed laminaria hyperborea – the one that is being harvested by the seaweed trawlers – one surprising bit of information was that some of the seaweed was dated at nearly 20 years of age
Henning Steen https://www.imr.no/om_havforskningsinstituttet/ansatte/s/henning_steen/nb-no
No mention of ecological consequences but a great deal of video of the seaweed forests
Before and after harvesting –