How did trout walker get his name trout in the story holes?

In Louis Sachar's novel "Holes," the character Trout Walker gets his name because he is known for catching fish, particularly trout. The name reflects both his family's history of fishing and his own penchant for being involved in schemes related to water and fishing. Additionally, the name contributes to his characterization as someone who is often associated with mischief and trouble in the story.