 The federally endangered tidewater goby is found in the bay, along with more common three-spined stickleback, shiner perch and Pacific staghorn sculpin.The bay has been invaded by the European green crab, a voracious predator that is known to prey on the young of native crab species, as well as native mussels, oysters, and clams.The invasive European green crab were first documented in Humboldt Bay in 1995 and have been blamed for a decline in clam harvesting.