zones of upwelling near the shores of land masses have high primary production because such zones
Upwelling Deep waters are rich in nutrients, including nitrate, phosphate and silicic acid, themselves the result of decomposition of sinking organic matter (dead/detrital plankton) from surface waters. When brought to the surface, these nutrients are utilized by phytoplankton, along with dissolved CO2 (carbon dioxide) and light energy from the sun, to produce organic compounds, through the process of photosynthesis. Upwelling regions therefore result in very high levels of primary production (the amount of carbon fixed by phytoplankton) in comparison to other areas of the ocean. They account for about 50% of global marine productivity.[8] High primary production propagates up the food chain because phytoplankton are at the base of the oceanic food chain.[9]
Andrea Gail All six of the crew were lost at sea.
Rate equation k is the first order rate constant, which has units of 1/s or sâˆ’1.
Strait Straits are the converse of isthmuses. That is, while a strait lies between two land masses and connects two larger bodies of water, an isthmus lies between two bodies of water and connects two larger land masses.