Scallops (file photo). Photo: 123rf The ban at Ōpito Bay over summer is being put in place to prevent the collapse of the shellfish's population. A survey by mana whenua and mana moana Ngāti Hei began yesterday in Ōpito Bay to find out how many scallops remained. Ngāti Hei kaumātua Joe Davis told Afternoons with Jesse Mulligan that a lack of action from officials was forcing locals to step in. "We needed to do something to create some awareness about the numbers that are coming down and the signs that are telling us there is something wrong with the fisheries out here," Davis said.