Oceans Zones Ecosystems and Resources How is the

Oceans : Zones, Ecosystems and Resources How is the ocean divided? Describe different habitats with in the ocean. What resources do the oceans provide? How do organisms in the oceans interact with each other?

What resources do Oceans provide us? Resources 1. Food/ Seafood 2. Natural Resources. Metals, Salt, Water, Oil, 3. Transportation- Shipping of goods and people 4. Tourism 5. Climate buffer 6. Oxygen Examples

How does the ocean buffer the climate? • Currents help to move warm water to the poles and cold water to the equator. • The currents warm or cool the air influencing the climate in the particular area.

What and where are the Ocean’s Zones? 1. Intertidal zone-This zone refers to the area between the highest high tide and the lowest low tide. 2. Neretic zone. Shallow waters over the continental shelf. 3. Oceanic zonewaters beyond the continental shelf.

Where do most organisms live in the ocean? http: //library. thinkquest. org/04 oct/01590/intro/ocean. jpg

How would you describe the Intertidal Zone? • Organisms that live in this zone must be tolerant of changes in the environment. • Organisms must be able to withstand changes in temperature, salinity and exposure to air. http: //www. teachersdomain. org/resources/tdc 02/sci/life/eco/intertidal/ assets/tdc 02_vid_intertidal_l. jpg http: //www. georgiastrait. org/files/share/0310 -adjusted. jpg

Describe two habitats found in the Intertidal Zone. • Tide Pools 1. These area’s where water remains in depressions during low tide. 2. Organisms must withstand changes in temperature and salinity. 3. Organisms include sea stars, sea urchins, and mussels. • Estuaries 1. These are coastal inlets or bays where freshwater from rivers meet the saltwater from the ocean. 2. This type of habitat includes mangrove swamps and salt marshes.

Intertidal Zone Organisms http: //studentweb. cortland. edu/knowles 86/Intertidalzone. gif

Mangrove Swamps and Salt Marshes Tide Pools http: //www. chbr. noaa. gov/categories/ecosystems/images/estuaries. jpg http: //www. botany. ubc. ca/people/hawkes/tide_pool. jpg http: //itech. pjc. edu/sctag/cozumel_island_raccoon/mangrove. bmp

What are conditions like in the Neretic Zone? • It is home to a variety of different organisms. • There is plenty of sunlight and nutrients in the water. • Nutrients are washed from the land into the oceans from rivers and estuaries.

Describe two habitats found in the Neretic Zone. • Coral Reefs • Kelp forests 1. They make up colonies of small coral animals and algae. 2. They are home to a diverse number of organisms such as fish, anemones, and starfish. 3. They can be found in warm shallow, tropical waters. 4. Found on continental shelves and around volcanic islands. 1. They are found in cold Neretic waters along the Pacific Coast where the floor is rocky. 2. They contain kelp which are large algae anchored to the ocean floor. 3. They provide food and shelter to organisms such as sea urchins, sea otters, and other organisms.

Coral Reefs http: //earthobservatory. nasa. gov/Study/Paleoclimatology_Close. U p/Images/coral_reef. jpg http: //www. oceanblueeducation. com/OBE%20 We bsite/HOME/Images/OBE%20 website/Programs/P rogram%205. jpg

Kelp Forests

What are the conditions like in the Open Ocean? • The Open Ocean contains few nutrients and a small amount of sunlight. • Upwellings- bottom currents that bring nutrients up to the surface. • Algae in the surface zone is the main food supply for organisms. http: //ricksaphire. com/Photos/pl ankton. jpg

Describe two habitats found in the Open Ocean Zone. • 1. 2. 3. Deep Zone The water is cold, dark and more harsh than the transition zone. May organisms have adapted to the dark by producing their own light– called bioluminescence. Food Supply is limited. • 1. 2. 3. Hydrothermal Vents This is an area where hot water rises from cracks in the oceans floor. They support a variety of unusual organisms. The basis of this food web is bacteria, Bacteria is a food source for many of the organisms that live near these hydrothermal vents.

Deep Ocean Creatures- What do they have in common? http: //www. deepseaphotography. com/images/pics/ deep_sea_fish_head. jpg http: //www. extremescience. com/images/Warty. Angler. Glow. jpg

Hydrothermal Vents- Where are they? http: //www. mbari. org/molecular/images/map 2. gif http: //www. bact. wisc. edu/themicrobialworld/Hydrothermal_ vent. jpg

Aquatic Food Webs Producers- produce their own food/ energy. Consumers- consume their energy. Primary Consumers- eat producers Secondary Consumers. Eat primary consumers

3 -2 -1 Summarize!!! Write 3 facts you wrote in your notes in complete sentences. Write 2 facts given to you verbally that you did NOT write down in complete sentences. Write 1 question that presented itself to you while taking notes.