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How the tides affect marine life along the coast

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Alejandra Reyes

on 6 May 2013

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Transcript of How the tides affect marine life along the coast

How Do The Tides Affect Marine Life? The Life of Changing Tides The Habitats Created to Survive The Animals of the Tidal Life Since the waters are contantly changing, the animals have learned to adapt depending on the amount of time they haveto spend underwater or in the air. That is why the intertidal zone is divided into 3 subzones. *Mostly covered expect during the lowest low tides.
*Animals here are adpated to spending most of their time in water.
*Ex. Sunburst Anemone, nudibranch, Starfishes The Middle-Tide Zones *Spends equal time dry and wet.
*The animals are adpated for both forms of living.
*Ex. Mussels, barnecales, ghost shrimp. The High-Tide Zones *Mostly dry being covered when the tide is the highest
*Since the environment is harsher due to etended time of in the sun or harsh waves while in the water,the animals tend to have adapted by adding shells.
*Ex. Striped Shore Crab and Dogwinkle The Low-Tide Zone Along the coastlines, several habitats have been created by the tides and have protected and provided for the creatures throught the tides. Just a few eamples of animals dependent on the tides for life. The Fiddler Crab Returns to its burrow when the tide comes in, but when it leaves, feast o the food brought in by the tide. Hantzchia Though this plant like organism burrows deep into the sands when the tide is high, it leaves the safty of the sand to photosynthesize when the water leaves. Grunions These fish go to shore at the highest spring tide to lay their eggs, then when the spring tides return in two weeks they hatch. Sea Stars use the tides to move and get food. Purple Sea Urchin Retains waterfrom the tides in order to keep its organs wet when the tides reside in order to make sure it doesn't dry out. Tidal Pools Depressions in rocks that flood due to the tides, bringing in new creatures and food for the animals that live there Tidal Lagoons A semi-eclosed area that provides residency for several marine creatures and is affected by the flushing out of the tidal waves. It's a form of protection. Tidal Rivers Habitat for creatures which levels and flow are affected by the tides. Salininty is also affected by the tides. Estuaries Similar to tidal lagoons excpet with a freshwatersource. Tides even out the salinity and flush out waste as well as bring in food. The End!
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