AERIAL of salt marsh. MCU of spartina (green marsh grass). AERIAL of salt marsh. AERIAL of marsh grasses, TILT DOWN to surface of water, then underwater. UNDERWATER MCU of tubularian hydroids (invertebrates with pink stalk-like bodies and spidery tentacles). VAR CU of sea anemones extending tentacles. MCU CU of long-horn skeleton shrimp swaying on seaweed. Time-lapse CU MCU of sea pork. MS CU of large oyster shell. CU of oyster shell expelling feces, common shore shrimp in foreground. (407)