“…Much of that work has focused on estimates of total primary production from surface pigment concentrations and/or light intensity (Lorenzen 1970, Smith et at. 1982, Dupouy et al 1986, Platt 1986, English et al 1987, Balch et al 1989, Frouin et al 1989. Sathyendranath et al (1991) estimated new production from satellite imagery by applying an appropriate f-ratio (Eppley and Peterson 1979) to their estimates of total production.…”