Booker prize-winning author Richard Flanagan has criticised Tasmania's salmon industry claiming the product being sold is not as healthy as advertised. 

Flanagan alleges up to two-thirds of the salmon is processed industrial chicken, including beaks, feathers, fat and claws. 

The author stated he was compelled to speak out after watching the slow destruction of natural habitat.

"What's going on in Tasmania is that these beloved coastal waterways that are so important to everyday Tasmanians are being stolen from them and locked up to benefit a handful of very large corporations," he said.