The whales are resident in the region and the local fishermen have established a relationship with them … The locals view the whale shark as a good luck omen.
Whale sharks eat a diverse array of zooplankton, including small crustaceans, jelly fish and coral spawn – and easy feeds of fish when they can get them.
There’s more at the link.
Here’s the video clip. I recommend watching it in full-screen mode.
Amazing! It’s almost as if the net is an udder from which the whale sharks feed like calves!