Oysters: nearing extinction?

As these advocates and unlikely allies put it, oysters are a keystone species. They are literally the filters of bays and estuaries and even of whole oceans. They create the habitat other species like mussels and barnacles and clams and fish need to survive. It’s time, then, as Lewis Carroll’s Walrus puts it, to talk about oysters.

Source: The Time Has Come to Talk About Oysters – Los Angeles Review of Books