The use of the stable isotope, oxygen-18, as a tracer to measure gross primary production in coastal and oligotrophic waters and in monoclonal cultures of marine phytoplankton

new technique was developed to measure the in vitro rates of gross oxygen production in planktonic communities, in which water is enriched with the stable isotope ;The standard technique for measuring production in the oceans, ;We also measured rates of light respiration in cultures and natural populations by the ;Lastly, in situ rates of production can, theoretically, be calculated from natural...