Distribution of Reserved (Preformed) Phosphate in the Subarctic Pacific Region

Abstract

It is proposed that the term“preformed”nutrient matters which was given by REDFIELD et al (1963) should be replaced by the term“reserved”nutrient matters. Distribution of reserved phosphate in the surface waters of the Subarctic Pacific Region is shown, where the reserved phosphate concentration is probably highest in all the oceans. The mechanism by which such a high concentration is maintained in this region is illustrated.