The Tasmanian and Federal Liberal parties are being accused of causing confusion in the fishing industry because of their conflicting positions on the use of the supertrawler, Abel Tasman.

The Federal Opposition has indicated it would reverse a ban on the use of Seafish Tasmania's supertrawler in Australian waters, even though it is at odds with the state party.

Greens spokesman, Kim Booth, said it is laughable.

"The federal Liberal party and the state liberals need to accept responsibility for the confusion they've caused not only amongst recreational fisher groups in Australia but also with the fishing industry," he said.

"Because obviously they don't they wouldn't have a clue what they're supposed to be doing with those mixed signals coming out of liberal party."

The State Opposition spokesman, Rene Hidding, said it is not unusual for the state and federal parties to differ on policy.

Meanwhile, Seafish Tasmania has revealed more details about its court case for overturning bans on the supertrawler in Australian waters.

The Federal Environment Minister, Tony Burke, has rejected the company's applications to use the Abel Tasman to fish its quota of jack mackerel and red bait, or as a floating freezer.

Seafish Tasmania's Director, Gerry Geen, said the Federal Court writ against the Federal Government alleges Tony Burke ignored advice from leading marine scientists.

Mr Geen said it also argues the company's proposed method of fishing has been used in the past.

"Fishing midwater trawl nets the same size or larger had actually been used in the past," he said.

"The method of freezing fish on board had been used in this fishery in the past. The method of holding frozen fish in cold storage on board a fishing vessel have been used in this fishery in the past."