Activities by Greenpeace off Sylt, specifically the dropping of large rocks to prevent fishing by trawl, have put Sylt in the national news here in Germany. You can read the English version (brief) here. Last weekend, Greenpeace had one of their boats in the local harbor in List along with an informational booth on their activities, and the people wandering around the harbor area (mostly tourists?) were quite interested.
There is no doubt that European fisheries policy is not where it needs to be, and that trawling is indeed destructive, but there are a lot of other problems in the area that are hurting the bottom of the sea as well–for example, the mining of sand to combat natural erosion on the island of Sylt. That is my marine ecologist input on the topic…for now, at least.