1 / 22

OCEAN HABITATS and resources

OCEAN HABITATS and resources. CHAPTER 14 SECTION 2 & 3. LIFE IN THE OCEAN. Scientists classify marine life based on where they live and how they move. They are divided into 3 categories: PLANKTON : tiny algae and animals that float in the water; carried by water currents.

roxy
Download Presentation

OCEAN HABITATS and resources

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OCEAN HABITATSand resources CHAPTER 14 SECTION 2 & 3

  2. LIFE IN THE OCEAN • Scientists classify marine life based on where they live and how they move. • They are divided into 3 categories: • PLANKTON: tiny algae and animals that float in the water; carried by water currents. • NEKTON: free-swimming animals Ex: squid, sharks, fish, turtles, sea otters, etc • BENTHOS: organisms that live at the ocean floor Ex: crabs, starfish, urchins, lobsters, flounder

  3. PLANKTON

  4. NEKTON

  5. BENTHOS

  6. Ocean Food Webs • Phytoplankton and algae are the major PRODUCERS of the food web. They use sunlight to make their own food. • Fish, crab, sea anenomes, corals, etc are the CONSUMERS. They eat the producers and other consumers. • Some benthos organisms eat decaying or dead organisms; they are called DECOMPOSERS.

  7. Food Chain Plankton

  8. Food Web

  9. INTERTIDAL ZONE • Organisms in this zone must be able to withstand changes in temperature, salinity, and exposure to air. • Various intertidal zones include: • Estuaries • Mangrove forests • Salt marshes • Sandy shores/rocky shores • Tidal pools

  10. NERITIC ZONE • Coral reefs are found in this zone in warm, tropical waters. • Nutrients wash in this zone from land and sunlight reaches throughout this zone because it is shallow. • The sunlight & nutrients encourage algae and other plant-like organisms to grow which serves as the base of the food chain.

  11. How coral reefs form • ATOLL – a ring shaped reef surrounding a shallow lagoon.

  12. An atoll in Belize

  13. Molokini in Hawaii

  14. Kelp Forests also grow in Neritic Zone • Kelp forests grow in cold temperature waters on rocky ocean floors.

  15. Open Ocean Zone • 3 zones in the open ocean • Surface zone – sunlight reaches throughout this zone; lots of phytoplankton and algae • Transition zone – water here is darker and colder • Deep zone – darker and even colder! Many organisms make their own light called BIOLUMINESCENCE

  16. Largest Animal in World!

  17. Blue Whale

  18. Resources from the Ocean(Section 3) • We depend on the ocean for both • LIVING and b) NONLIVING resources. LIVING RESOURCES: Include fish – tuna, anchovies, mackerel, herring Also include shrimp, lobster, crab, squid, etc Most fish are caught in coastal waters in areas of upwelling. Sometimes fish can be overfished – catching more than can replaced by reproduction.

  19. Other living resources are used for products instead of food. • Algae is used in many household products such as shampoo and cosmetics.

  20. AQUACULTURE • The farming of freshwater or saltwater organisms. • Environment is created for organisms to thrive; nutrient levels, temp, light and other factors are controlled. • Salmon is being raised in Nebraska!

  21. NONLIVING RESOURCES • Includes water, fuel/oil, and minerals. Some minerals mined include: Magnesium Gravel Sand Diamonds Gold Manganese Iodine

More Related