Fiction circa 1989 based on a man who encounters a shark in Tasmania

[Nicole]

This book was based in Tasmania Australia, and was based on a man who had an encounter with a great white shark who had a distinctive scar. Over the coming years he has further encounters with this same shark.

[Lobstergirl, au gratin]

Is it anything on this 3-page list?

https://www.goodreads.com/places/4925...