Because the whale sharks 'tastes in prey are very similar to those of valuable commercial fish species such as tuna, fishermen from many countries look out for the presence of whale sharks as an important indicator of a potential high-value catch.
由於鯨鯊的飲食口味與鮪魚等高經濟魚種重疊，在國外，鯨鯊的出現往往被當成高經濟魚獲的重要指標。