Planktonic Foraminifera: Field Experiment on Production Rate

See allHide authors and affiliations

Science  16 Jun 1967:
Vol. 156, Issue 3781, pp. 1495-1497
DOI: 10.1126/science.156.3781.1495


In a study of the rate of production of four species of planktonic Foraminifera in the region of the California Current it was found that their life spans are of the order of 1 month. Reproduction seems to take place mainly in the upper hundred meters. Results are in contrast to previous evidence presented in favor of yearly life cycles and maturing at great depth in other species of planktonic Foraminifera.