I don't think this situation is sustainable. Regional Councils don't have the expertise to manage fisheries or the compliance resource to be able to enforce rules at sea. The quicker an oceans policy gets developed the better. 

New 'ad-hoc' no-fishing area spoils plans for summer of sailing and fishing | Stuff.co.nz
https://www.stuff.co.nz/environment/133043164/new-adhoc-nofishing-area-spoils-plans-for-summer-of-sailing-and-fishing