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Categories of Ocean Life

Categories of Ocean Life. Goal: To discuss examples of different types of marine organisms and the adaptations to their environments. Tonight’s homework: none Warm-up: Please take out your “Exploring the Oceans” online activity. Then, in your science journal:

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Categories of Ocean Life

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  1. Categories of Ocean Life Goal: To discuss examples of different types of marine organisms and the adaptations to their environments. Tonight’s homework: none Warm-up: Please take out your “Exploring the Oceans” online activity. Then, in your science journal: • Define plankton, nekton, and benthos. Give a few examples for each. • What are the two basic types of plankton?

  2. Life in the Ocean 3 1) All ocean life fits into ____ categories: Benthos • 2) __________  organisms that live on or in the ocean floor • 3) __________  plant-like and animal-like microscopic life • 4) __________  fish, dolphins, and sea lions • __________  free-swimming organisms • __________  crabs, worms, and clams • __________  organisms that drift freely near the ocean surface Plankton Nekton Nekton Benthos Plankton

  3. Plankton Zooplankton (animals) 2 types Phytoplankton (plant-like organisms; capable of photosynthesis)

  4. Nekton

  5. Benthos

  6. Whale Fall 3 min.

  7. Biological Zones of the Ocean Intertidal Zone PELAGIC ENVIRONMENT Neritic Zone Oceanic Zone B E N T H I C E N V I R O N M E N T

  8. Ocean Environments Intertidal 1) ___________  right at the shoreline Benthic 2) _________  along the ocean floor (can be shallow or deep) Pelagic _________  water environment (but not along the bottom) Neritic • __________  shallow region along the coast (on the continental shelf) Oceanic • __________  the rest of the open ocean (out at sea)

  9. Neritic or Oceanic Zone? Oceanic • 13) __________  covers the entire sea floor except for the shelf • 14) __________  covers the continental shelf • 15) __________  is warm and shallow • 16) __________  is home to strange animals like the angler fish • 17) __________  has cold water under great pressure in deep areas • 18) __________  receives an abundance of sunlight Neritic Neritic Oceanic Oceanic Neritic

  10. Biodiversity in the Ocean Where in the ocean will you find the greatest diversity of life? Neritic Zone Oceanic Zone On the continental shelf Sunlight reaches the benthic organisms on the bottom. This is especially important for…

  11. Coral Reefs

  12. Life in the Neritic Zone Fish and other aquatic organisms like to have something to hang out around, where there is an abundance of nutrients. This is why coastal areas are so densely packed with ocean life.

  13. Life in the Deep Ocean Since the oceanic zone is so enormous, there is more total life here than in the neritic zone, but it is sparse by comparison and tends to cluster around geologic features such as seamounts, where nutrients are rich.

  14. Life in the Deep Ocean What do these deep organisms rely on for their food? Where else does deep sea life tend to cluster?

  15. Hydrothermal Vents

  16. The Oceanic Zone Out in the open ocean, there aren’t as many nutrients in the water, so much of the life here consists of tiny plankton and the jellyfish that feed on them…

  17. Jellyfish Predators …and the large predators that prey on the jellyfish! Molamola

  18. MolaMola (aka Ocean Sunfish) Basking on its side

  19. MolaMola (aka Ocean Sunfish)

  20. Ocean Zones

  21. Fangtooth

  22. Dumbo Octopus Size: up to 1.5 meters Depth: 300 – 5,000 m

  23. Sperm Whale Length: 20 meters (65 ft) Depth: from the surface down to 10,000 feet!

  24. Giant Isopod Size: 35 cm (over a foot long) Depth: 200 – 2,000 m This organism is like a giant underwater insect. Notice the eyes, and pale coloration

  25. Deep Sea Anglerfish What Zone do you think this fish lives in? Hint…this fish lives at a depth of 3,000 ft

  26. Japanese Giant Spider Crab Size: up to 4 m (13 feet across including legs!) Depth: 300 – 400 m

  27. Leafy Sea Dragon Where would you expect this organism to live? Click here for more weird ocean creatures.

  28. Strange Deep Sea Life 11 min.

  29. Deep Sea Adaptations Goal: To discuss examples of different types of marine organisms and the adaptations to their environments. Tonight’s homework: Complete online QUIA quiz tonight! (See Mr. Collins’ SharePoint site) Warm-up: Discuss at your table: Try to come up with some examples of adaptations (physical traits) you can think of that help certain species survive in the deep parts of the ocean.

  30. ALVIN Take a moment to read p. 50 1 min.

  31. Diagram A physical features active continental margin deep-ocean basin continent continental slope abyssal plain oceanic crust continental crust trench

  32. Diagram B physical features passive continental margin deep-ocean basin continent continental shelf continental slope continental rise continental crust abyssal plain oceanic crust

  33. Diagram C biological zones pelagic environment intertidal zone oceanic zone neritic zone benthic environment

  34. Camouflage 4 min.

  35. Bioluminescence 4 min.

  36. The Colossal Squid Mesonychoteuthishamiltoni

  37. Marine Life in Antarctic Circle

  38. The Colossal Squid

  39. Anglerfish in Love C’mon, who wants to mate with me?

  40. The Strange Love Life of the Anglerfish 4 min.

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