The high-seas docu-series “Wicked Tuna” has been canceled after 13 seasons on National Geographic. The show about fishermen from Gloucester, Mass., has aired on the network since 2012. The news broke as Nat Geo has had its staff cut due to layoffs across its parent company Disney Entertainment Television. The series aired more than 200 episodes and inspired the spinoff, Wicked Tuna: Outer Banks, which included eight seasons from 2014-21.