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Plankton. Small, microscopic algae or animals that float in the water. They can’t move on their own – rely on the current to carry them. Food for many organisms. #1 PRODUCER. Nekton. Any free swimming (doesn’t rely on the current to move) animal in the Ocean. Benthos.
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Plankton • Small, microscopic algae or animals that float in the water. • They can’t move on their own – rely on the current to carry them. • Food for many organisms. • #1 PRODUCER
Nekton • Any free swimming (doesn’t rely on the current to move) animal in the Ocean.
Benthos • Organisms that live on the ocean floor.
Food Web • Feeding relationships in a habitat.
Intertidal Zone • Part of the beach that stretches from highest high tide to lowest low tide.
Estuary • Where a river empties into the ocean. • Mixture of fresh water and salt water. • Important breeding ground – the “nursery”
Brackish Water • Describes water that is a mixture of salt water and fresh water. • Found in estuaries
Turbidity • How cloudy or dirty water appears • Cloudy water- test with turbidity tube.
Sonar • Uses sound waves to calculate the distance to an object.
Upwelling and Downwelling • Cycling of nutrients from the cold bottom of the ocean to the warm top. Fish loves this area.
Continental Shelf • Extension out of continents edge, gently sloping shallow area.
Continental Slope • The Ocean Floor drops off at a steep incline. • Intertidal Continental shelf Continental Slope
Abyssal Plain • Smooth and Flat area of the Ocean Floor.
Deep Ocean Trenches • Cut into the abyssal plain • This is where subduction takes place and volcanoes and hot spots form.
Mid Ocean Ridge • When the sea floor spreads apart, and lava rises to form new mountains.
Seamounts • Mountains that are underwater in the ocean • This is where upwelling occurs (fish love it here)
Submersible • Underwater vehicle built to see ocean floor and resist high water pressure. • ROVs (Remotely Operated Vehicle) are submarines that are not manned (do not have humans in them)
Currents • Warm water comes from the Equator and cold water comes from poles. • Gulf Stream is near us (warm)
Rip Current • Water breaks through the sandbar, and causes sand to disappear out from under you.