Credit: Compassionate Eye Foundation The Image Bank Getty Images. The number of those people employed in the United States has gradually risen since September of 2010. However, the employment numbers dropped between April 2010 through September 2010 from 132 million employees down to 130 million employees.
Phytoplankton drifting about below the surface of the water still carry out photosynthesis. This process can occur as long as enough light is available for the chlorophyll and other pigments to absorb. In the ocean, light can reach as far as 200m below the surface 25.hlorophyll is not the only photosynthetic pigment found in algae and phytoplankton. There are also carotenoids,and phycobilins (biliproteins). These accessory pigments are responsible for other organism colors, such as yellow, red, blue and brown.
Lack of light will of course kill a reefâno live coral growth takes place below about 50 metres under the surface. Hence thick atolls such as Eniwetok require the ocean floor to sink as the coral builds.As the coral is lowered, faster growth is possible than that which we measure at the surface.his is a living reef resting on an extinct volcano cone which comes up about three kilometres (two miles) from the ocean floor. Drilling revealed about 1,400 metres (4,600 feet) of reef material.