Environment Tasmania has hit back at claims its investigation into Tasmania fish farms was not based on fact, saying it released a full report including references alongside the launch of its new campaign on Monday.
The campaign, arguing transparency issues surrounding Tasmania's three salmon producers and their use of genetically altered salmon, use of antibiotics, water management and fish deaths, has been criticised by the Australian Workers Union Tasmania and Huon Aquaculture.
Environment Tasmania strategy director Laura Kelly said claims the organisation had refused to release its data to prevent industry from commenting were incorrect.
"Industry has claimed that we have refused to release the rating standards but those standards have been shared with [the salmon companies] and have been publicly available on our website since Monday," Ms Kelly said.
Ms Kelly said all the data used was all legitimate information from the companies' own websites and government documents and it was sent to all companies to give them an opportunity to correct any inaccuracies in the data.
"[Huon Aquaculture] was sent all data used for review and while initially agreeing to release additional information to fill gaps on key sustainability and welfare indicators, changed their mind, declaring the information commercial in confidence," she said.
"The benchmarks, what determines whether we consider they are a red, amber or green rating for each criteria, were determined in relation to the published scientific literature and expert advice on industry best practice."
Ms Kelly said the aim of the campaign was not to shut down the salmon industry but was to encourage producers to work towards the green benchmark, which was based on current industry best practice.
"That's the entire purpose of the rating, to encourage people to work towards green," she said.
Environment Tasmania's full report with references can be found here.