Oliver Lauzon, 2nd mate on the Greenpeace ship MV Esperanza keeping on eye on the Spanish bottom trawling vessel Playa de Menduenia as she fishes on the Hatton Bank, North 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.