Westpac's belief in the potential of the blue economy is being supported by aquaculture

The bank's new report says the marine economy could grow to 14-billion dollars in 10 years, by switching to more sustainable practices.

Aquaculture New Zealand Chief Executive Gary Hooper says they're right on the cusp, and fewer resource management restrictions will let them flourish.

He agrees with the report, especially as it highlights aquaculture as a specific area of growth - a story he says he's been trying to tell for the last 20 years.