Where is the rate of primary production the least?

Question

Quizplus · Accepted Answer

Primary production is the process by which autotrophs (plants, algae, and some bacteria) convert sunlight, carbon dioxide, and nutrients into organic matter through photosynthesis. The rate of primary production is the lowest in the middle of the current gyres, which are large systems of rotating ocean currents, because the water there is nutrient-poor due to the lack of upwelling. In contrast, coasts and areas with upwelling along coasts typically have high primary productivity due to the influx of nutrients from land and from deeper waters. The Southern Ocean around Antarctica in the summer and the Equator can also have low primary productivity due to various factors such as limited sunlight or nutrient depletion.

Where Is the Rate of Primary Production the Least