one dude got $23,000.00 from one day of shrimping
Was that a small boat/skiff? If so that is a pretty damn good trip. But with a big boat there are lots of expenses.
Back when my parents used to have their dock in Venice, we used to have some shrimp boats have $50,000+ trips(shrimp was worth double back in the 80's before all of the Asian imports) and we even had some tuna boats have $100,000+ trips but those were all big boats.