In biological oceanography, "'new production "'is supported by nutrient inputs from outside the euphotic zone, especially upwelling of nutrients from deep water, but also from terrestrial and atmosphere sources ( as opposite to regenerated production, which is supported by recycling of nutrients in the euphotic zone ).
32.
In biological oceanography, "'new production "'is supported by nutrient inputs from outside the euphotic zone, especially upwelling of nutrients from deep water, but also from terrestrial and atmosphere sources ( as opposite to regenerated production, which is supported by recycling of nutrients in the euphotic zone ).
33.
"Synechococcus " has been observed to occur at concentrations ranging between a few cells to 10 6 cells per ml in virtually all regions of oceanic euphotic zone except in samples from the McMurdo Sound and Ross Ice Shelf in Antarctica . " Synechococcus " has also been observed to occur at high abundances in environments with low salinities and / or low temperatures.
