Fig. 15.13

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

Some typical phytoplankton (diatoms)

Some more phytoplankton (dinoflagellates)

Phytoplankton biomass

Fig. 8.3

Pycnocline is zone of fast density change

Sea surface temperatures

These winds drive the surface ocean currents

Fig. 9.2Surface currents are directed 45 degrees from wind.

Net transport is 90 degrees to surface wind. (Ekman transport.)

Sea surface height

Figure 2-36 Ocean productivity

1997-98 El Nino