Moro Cojo Slough provides representation of rare brackish habitats that support threatened species.
Moro Cojo and nearby Elkhorn sloughs host year-round residents tightly associated with estuaries, such as pickleweed, eelgrass, oysters, gaper clams, and longjaw mudsuckers, as well as important seasonal visitors such as migratory shorebirds, sea otters, and sharks and rays.