Oceanography The Official Magazine of
The Oceanography Society
Volume 02 Issue 02

View Issue TOC
Volume 02, No. 2
Pages 4 - 10

OpenAccess

Stratospheric Ozone, Middle Ultraviolet Radiation and Phytoplankton Productivity

Raymond C. SmithKaren S. Baker
First Paragraph

Marine life in the upper layers of the sea may be endangered by increased ultraviolet (UV/ radiation resulting from reduction in the thickness of the earth’s ozone layer. There is undisputed observational evidence that human activities, including the production of chlorofluorocarbons, are influencing the concentration of stratospheric ozone (Watson, 1988). A significant reduction in average global stratospheric ozone is predicted over the next century, despite international efforts to address the problem. Seasonal depletions of ozone in the Antarctic during austral spring have already reached 50c/c, resulting in the widely discussed “‘ozone hole’” (Brasseur, 1987). Reduced stratospheric ozone will result in increased biologically damaging ultraviolet radiation (UV-B, 280-320nm) reaching the surface of the earth. Since UV-B radiation can penetrate to ecologically significant depths in water (Jerlov, 1950: Lenoble, 1956: Smith and Baker, 1979: Gieskes et al., 1989), any, ozone reduction results in increased UV-B penetrating the surface layers of marine environments.

Citation

Smith, R.C., and K.S. Baker. 1989. Stratospheric ozone, middle ultraviolet radiation and phytoplankton productivity. Oceanography 2(2):4–10, https://doi.org/10.5670/oceanog.1989.01.

Copyright & Usage

This is an open access article made available under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution, and reproduction in any medium or format as long as users cite the materials appropriately, provide a link to the Creative Commons license, and indicate the changes that were made to the original content. Images, animations, videos, or other third-party material used in articles are included in the Creative Commons license unless indicated otherwise in a credit line to the material. If the material is not included in the article’s Creative Commons license, users will need to obtain permission directly from the license holder to reproduce the material.