In New York, one organization puts recycled shells in cages for oyster spat to grow on, and groups in Bangladesh, and around the US, have placed large concrete barriers offshore for oyster spat to grow on.

在纽约，一个组织把回收的贝壳放在笼子里，让牡蛎贝沫在上面生长；孟加拉国和美国各地的组织在近海设置了巨大的混凝土屏障，让牡蛎卵在上面生长。