A crew member of the Greenpeace ship MV Esperanza holds a large spider crab that has been caught and killed by an EU bottom trawler, the Playa de Menduina, fishing in Hatton Bank, NE Atlantic.Bottom-trawling boats, the majority from EU countries, drag fishing gear weighing several tonnes across the seabed, destroying marine wildlife and devastating life on underwater mountains - or 'seamounts'.Greenpeace is demanding a UN moratorium on bottom trawling on the high seas.