Any future Government recovery package would also look at the effect on other marine businesses such as charter boat operators, dive shops and surf schools.
Mr Heatley said it was fortunate that the disaster happened before the fishing season picked up over the summer months from next month.
Once the issues with the oil had been solved and the clean-up finished, they would go through testing species by species to see how the fish had been affected. Fin fish tended to swim away from oil pollution, leaving shellfish and crayfish as the most affected.
The impact of the exclusion zone on crayfishing ranged from 80 per cent to 33 per cent of each company's quota. Mr Heatley said a significant number of commercial crayfish were caught on Astrolabe Reef - the reef on which the Rena grounded. Crayfishing was the most affected because it was the most valuable.
He did not yet know the economic impact but said he was now a lot clearer on what fishers required. The exclusion zone extends from Tauranga to Matata and is centred on Motiti Island.