Related Clues:

• Whale's mouthful
• An important source of nutrition for large whales
• Whales' food
• Aquatic creatures from river involved in slaughter
• Crustaceans cook finally found on stream
• Planktonic crustaceans
• Filter feeder's fodder
• Small marine creatures
• Little creatures to get rid of, crossing river
• What the world's largest animal eats
• Shrimplike creatures do in surrounding river
• Shrimp-like creatures dined on by whales
• Seal food
• Tiny marine crustaceans
• Southern Ocean food source