September 1 is the first day of scallop harvesting season, says The Spinoff. But New Zealanders feasting on fresh scallops this season will probably be eating them from one of only two main beds left open on mainland New Zealand, in Auckland’s Hauraki Gulf. The rapid and distressing disappearance of our once abundant scallop beds has been blamed on a few environmental factors. But marine activist Ellie Martel points the finger at one clear cause of the decline: dredging.