Related Clues:

• Tiny plant or animal organisms that drift in water
• Ocean drifters not put back on board
• Marine organisms
• Krill, for example
• Board not coming up for food
• Piece of wood: heavy weight that floats in the sea
• Small organisms, hundred on piece of wood
• Drifters not mountain climbing around North Korea's capital
• Idiot has not served up seafood
• Sea creatures not turning up under part of ship
• Microscopic organisms in great number on board
• Small sea organisms in large quantity on board
• Floating whale food
• Microscopic marine food
• Drifting microorganisms