Why was Lorraine Gary not in jaws 3?

Lorraine Gary did not reprise her role as Ellen Brody in "Jaws 3-D" primarily due to creative decisions and changes in the film's direction. The filmmakers opted for a new cast to reflect the film's shift towards a more younger audience and a different storyline focused on a theme park setting. Additionally, Gary was reportedly not interested in returning for the sequel, which further contributed to her absence in the film.