1. Plankton Net

2. Fnft

3. Fnft: The evolutionary relationships of the major groups of marine organisms

4. Size Distribution

5. Fnft: Relative sizes of phytoplankton groups

8. Fnft: Food pyramid that leads to an adult herring

9. PHYTOPLANKTON “plant plankton” Photosynthetic The very base of the food chain…

10. Fnft: A micrograph of pelagic diatoms

12. Diatom (chain) diatom

13. Fnft: The size difference between a typical centric diatom and a coccolithophore cell © Steve Gschmeissner/Photo Researchers, Inc.

14. Fnft: SEM of Thalassiosira © Dee Breger/Photo Researchers, Inc.

15. Fnft: SEM of entire Asteromphalus heptacles Courtesy of Dr. José Luis Iriarte M., Universidad Austral de Chile

17. Fnft: Mixed sample of spinous and chain-forming diatoms, Diatoma vulgare © blickwinkel/Alamy Images

18. Figure 3.11: Cells in a chain of Stephanopyxis Courtesy of Kohki Itoh

19. Fnft: centric diatom from saltwater © Phototake/Alamy Images

20. Fnft: A dinoflagellate © Phototake/Alamy Images

21. Dinoflagellates

22. Ceratium A Dinoflaggelate “Phytoplankton”

23. Fnft: SEM of Gonyaulax polygramma

24. Fnft: SEM of Dinophysis rapa

25. Figure 3.16c: SEM of Gonyaulax © CSIRO Marine Research

26. Fnft: SEM of Ceratochoris horrida © CSIRO Marine Research

27. Why do phytoplankton matter to global change?

28. ZOOPLANKTON “animal plankton” NOT Photosynthetic – but “herbivores” and “carnivores” instead They FEED ON the very base of the food chain (phytoplankton)…but how?

29. 2 types of ZOOPLANKTON HOLOPLANKTON Spend entire lives as plankton Copepod, for example MEROPLANKTON Only part of their lives as plankton crabs & many fish, for example

30. Copepod, holoplankton

35. …a “survey” of zooplankton

36. salp

37. Larvacean: (Sea Squirt) Filter Feeder

38. Feeding on Dispersed Prey The appendicularian Oikopleura, within its mucous bubble. Arrows indicate path of water flow.

39. (mollusk)

41. Inhabitants of the Pelagic Division Some large gelatinous zooplankton: (a) A pelagic mollusk, Corolla. © David Wrobel/Visuals Unlimited

42. (sea star)

43. Polychaete worms & some mollusks

45. (crustacean)

47. Meroplankton

51. Inhabitants of the Pelagic Division Some large gelatinous zooplankton: (b) A ctenophore, Bolinopsis, swimming with eight rows of ciliated combs. Courtesy of OAR/National Undersea Research Program/NOAA

52. They aren’t always “small!” Some large gelatinous zooplankton: (c) A colony of salps (Pegea) cloned from a single parent. © Eric Prine/age fotostock

53. The “ultimate” symbiosis: sea slug w/ jellyfish

54. Not all plankton are small

55. Water spider

58. The cycle from a larva stage to the upcoming of adult hood.

60. Vertical Migration: Tying the Upper Zones Together A midwater siphonophore with a small, gas- filled pneumatophore at the upper end. Courtesy of Dr. Alice Alldredge, University of California, Santa Barbara

62. Bad plankton

63. Fnft: Phytoplankton bloom along the California coast

64. Food Chain impacts

65. Table 15.01