The document summarizes several marine ecosystems and the organisms found within them. It describes plankton as organisms that cannot swim against ocean currents, including photosynthetic phytoplankton like diatoms, dinoflagellates, and cyanobacteria, as well as zooplankton that eat other organisms. It also discusses nekton that can swim against currents. Several ecosystems are outlined, such as the rocky intertidal zone, estuaries, coral reefs, the open ocean, deep sea hydrothermal vents, and the challenges of life in each.

1. Marine Ecology

2. Ocean zones

6. Diatoms Have intricate glass shells Form chains to increase surface area

7. Dinoflagellates Have 2 flagella – one wraps around the middle, the other is at the tip Cause red tide!

8. Cyanobacteria Stromatolites (clumps of cyanobacteria) … some several million years old! 

10. Copepods Very small – most around 1mm

11. krill

12. Ctenophores (comb jellies)

13. Jellyfish

14. Larvae of benthic organisms Crab Sea Cucumber Sea urchin Snail Worm Starfish

15. Other zooplankton

16. Nekton

17. Watch Seasonal Seas Playlist

21. Rocky intertidal organisms

23. Estuary ecosystem

26. Coral reef organisms

28. What IS coral?

31. Watch Coral Seas Playlist

33. Open ocean organisms

34. Watch Open Ocean Playlist

37. Deep ocean organisms Show Blue Planet: “The Deep” chapters 1-10

38. Watch The Deep Playlist

39. Marine Ecology show The Deep

41. How do hydrothermal vents work?

43. Hydrothermal vent organisms Show chapters 11-12 of Blue Planet: “The Deep”

44. Other ocean ecosystems Seagrass beds Polar ice communities