3. Fig. 15.13 Phytoplankton (in this case diatoms) at base of food chain or “food web”.

4. Some typical phytoplankton (diatoms)

6. Some more phytoplankton (dinoflagellates)

16. Phytoplankton biomass

20. Fig. 8.3 Pycnocline is zone of fast density change

23. Sea surface temperatures

26. These winds drive the surface ocean currents

30. Fig. 9.2 Surface currents are directed 45 degrees from wind. Net transport is 90 degrees to surface wind. (Ekman transport.)

40. Sea surface height

43. Figure 2-36 Ocean productivity

45. 1997-98 El Nino