Something is wrong in the north end of Biscayne Bay, where — despite decades of dredging and boat traffic and polluted stormwater runoff — thick meadows of seagrass once kept water gin clear and filled with marine life.
Nearly half the basin’s manatee grass has died. Many of the fish have fled. And on windy days, or with every passing Cigarette boat, mud swirls up from the bottom. It’s essentially a dust bowl, only underwater.