The flotilla protest on fears Norfolk Bay will become the new site of fish-farming by stealth was held in the state’s south on Sunday.
The protest involved up to 60 various types of boats united on the message for fish-farming to be permanently banned from the bay.
This protest occurred despite Huon Aquaculture's decision to remove its fish pens from the area near the Tasman Peninsula one month ahead of schedule.
The fish had been quarantined there to protect them from Pilchard Orthomyxovirus which impacted stock in Storm Bay.
In a full-page advertisement published on Saturday, Huon Aquaculture executive director Frances Bender said the virus had not been present in the waters since July and the state’s chief veterinary officer had given the company approval to move stock back into Storm Bay.
But Greens environment spokeswoman Rosalie Woodruff believed the company had bowed to community pressure on removal of the pens.
Deputy Premier Jeremy Rockliff said there had stronger regulations and harsher penalties implemented by the government for fish-farming in Tasmania.