Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 11, 1982 | public
Journal Article

Micronutrients and Kelp Cultures: Evidence for Cobalt and Manganese Deficiency in Southern California Deep Seawater

Abstract

It has been suggested that naturally occurring copper and zinc concentrations in deep seawater are toxic to marine organisms when the free ion forms are overabundant. The effects of micronutrients on the growth of gametophytes of the ecologically and commercially significant giant kelp (Macrocystis pyrifera) were studied in defined media. The results indicate that toxic copper and zinc ion concentrations as well as cobalt and manganese deficiencies may be among the factors controlling the growth of marine organisms in nature.

Additional Information

© 1982 American Association for the Advancement of Science. 13 October 1981; Revised 15 December 1981. This work was supported by DOE contract DE-AC03-76ET20000; by grant 04-5-158-13 from the Office of Sea Grants, Department of Commerce; and by the Gas Research Institute. I thank Professor Wheeler J. North for research supervision and Drs. J. A. Davis and H. V. Leland for editorial assistance. Assistance from the staff of the Kerckhoff Marine Laboratory and W. M. Keck Engineering Laboratories is gratefully acknowledged.

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023