Porifera - This phylum includes sponges, which are living animals.As the ocean water retreats at low tide, marine life must withstand hours exposed to the air or in shallow pools. (Credit: Aislinn Sarnacki / BDN) Another. A whole host of fascinating plants and animals survive in this rugged, changing seascape. The top two shells are dog whelks and the bottom four shells are periwinkles.
Mollusca - This phylum includes snails, sea slugs, octopuses, squids, and bivalves such as clams, mussels and oysters. Here are the shells of two types of snails that live in Maine tide pools.It includes such beautiful animals as sea stars, brittle stars, basket stars, sand dollars and sea urchins. Organisms in this area include anemones, barnacles. Echinodermata - This is one of my favorite phylums. Mid Tide Zone gets exposed by low tide but is covered by the high tide.Ctenophora - These are jelly-like animals, such as comb jellies, but they don't have stinging cells.Animals in this phylum include corals, jellyfish, sea anemones, sea pens and hydras. Rock pools can be found in inter-tidal marine environments worldwide how- ever, there have been few studies exploring what drives their, sh species com- position, especially in Australia. As the water recedes at low tide, the tide pool temporarily forms. At high tide, ocean water collects in these depressions. These pools usually form where there are areas of hard rock, and parts of the rock have eroded away to form depressions in the rock. The study of marine life is called marine biology, and a person that studies marine life is called a marine biologist. Cnidaria - This is a diverse phylum of animals, many of whom have stinging structures called nematocysts. You'll find tidal pools in the intertidal zone, where land and sea meet.Chordata - Humans are in this phylum, which also includes marine mammals (cetaceans, pinnipeds, sirenians, sea otters, polar bears), fish, tunicates, seabirds and reptiles.Arthropoda - Arthropods have a segmented body, jointed legs and a hard exoskeleton for protection.An avid scuba diver, Mongil said she’s been interested in marine life almost as long as she could remember. An example of a segmented marine worm is the Christmas tree worm. Things just look different in person than they do online, she said. Annelida - this phylum contains segmented worms.
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