5 The marine world contains many life zones. Life zones are regions that contain characteristic organisms that interact with one another.
6 Marine life zones * SUPRATIDAL * INTERTIDAL * SUBTIDAL * PELAGIC Many organisms have adaptations that allow them to survive in different zones.
7 The supratidal zone is the area just above the tide line, or above the intertidal zone. The lower supratidal zone, closer to the water, has little or no life because it is too salty.The upper supratidal zone is home to many species of grasses, shrubs and trees.
8 The intertidal zone is, like its name suggests, the area between high and low tide. It is the region that is underwater at high tide but not during low tide.
9 High tide is marked by the strandline a long line of seaweed and debris.
10 Characteristic organisms of the intertidal zone include: * Beach fleas* Crustaceans* Mollusks* WormsThese organisms are adapted to living where it’s sometimes wet and sometimes dry
11 The subtidal zone is the area below the tide line. It is an area of heavy wave impact and underwater turbulence.
12 Many organisms that live in the subtidal zone have adaptations that allow them to survive there such as:* Clinging structures* Flat bodies
13 Characteristic organisms of the subtidal zone are: * Sponges* Clams* Sea stars* Crabs* Mussels* Shrimp* Barnacles* Snails* Flatfish (flounder)