1. The Microbial World Chapters 5, 15

2. The Marine Environment

3. Plankton Collection

4. Plankton Classification Megaplankton 20-200 cm Macroplankton 2-20 cm Mesoplankton 0.2-20 mm Microplankton 20-200 μm Nanoplankton 2-20 μm Picoplankton 0.2-2 μm

5. Metabolism Metabolism- all chemical reactions that occur in an organism. Autotrophic- requiring carbon dioxide and a source of energy for the synthesis of organic molecules (glucose). –Photoautotrophs- absorb light energy from the sun. –Chemoautotrophs- derive energy from chemical compounds. Heterotrophic- requiring complex organic compounds; obtains energy by consuming organic matter.

6. Bacteria and Archaea

7. Photosynthetic Prokaryotes Kingdom- Bacteria –Phylum- Cyanophyta

8. Cyanophyta Characteristics Examples- Oscillatoria, Synechococcus, Synechocystis.

9. Cyanobacterial Cell

10. Cyanophyta- Gram Negative Bacteria Gram positive- peptidoglycan layer; stains with crystal violet. Gram negative- peptidoglycan layer sandwiched by lipopolysaccharide and protein layers; does not stain with crystal violet.

11. Global O 2 from photosynthesis 80% comes from marine cyanobacteria. –Synechococcus –Synechocystis 20% comes from terrestrial systems. –5% of this comes from tropical rainforests.

12. Stromatolites

14. Archaea Prokaryotic Extremophiles –Hydrothermal vents –Hypersaline basins –Highly acidic env. –Highly alkaline env.

15. Photosynthetic Protista (the algae) Dinophyta- dinoflagellates. Haptophyta- haptophytes. Heterokontophyta- heterokont algae. –Xanthophyceae- yellow- green algae. –Bacillariophyceae- diatoms.

16. Dinophyta- dinoflagellates Characteristics Examples- Ceratium, Pfiesteria.

18. Pfiesteria piscicida

20. Haptophyta- haptophytes Characteristics Examples- Prymnesium, Phaeocystis.

21. Heterokontophyta- heterokonts

22. Xanthophyceae- yellow-green algae Characteristics Examples- Vaucheria.

23. Bacillariophyceae- diatoms Characteristics Examples- Coscinodiscus, Chaetoceros.

24. Frustule Morphology

25. The Protozoans Granuloreticulosa- foraminiferans. Polycystina- radiolarians. Ciliophora- ciliates.

26. Granuloreticulosa- foraminiferans Characteristics Example- Globigerina.

27. Pink Beaches of Bermuda

28. Polycystina- radiolarians Characteristics Example- Hexacontium.

29. Various Radiolarians

31. Ciliophora- ciliates Characteristics Examples- Strombilidium, Tintinnopsis.

32. Fig. 5.14

33. Kingdom Fungi Characteristics Example- Aspergillus.