From Openwaterpedia

noun - Chum is bait (luring substance) for fish, including sharks. Chum consists of fish parts and blood, which attract fish, particularly sharks owing to their keen sense of smell.


The film crew start chumming in order to see if the great white sharks would come to the surface.


rubby dubby (West Country and Yorkshire, UK), shirvey or chirvey (Guernsey and Channel Islands), burley (Australasia), and bait balls.

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