THE POTENTIAL ROLE O F MELTED "BROWN ICE " AS SOURCES OF

Abstract: The Antarctic sea ice is the site of production of great amounts of dissolved biogenic compounds of a very diverse nature, including potential chelators and reduced nitrogen which are introduced into adjacent surface waters in marginal ice zones during melting periods. The effect of melted...

Full description

Bibliographic Details
Main Authors: Chelators, Ammonia T O The, Surface Waters, O F The, Frederico P. Brandini
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Antarctic
The Antarctic
Weddell
Weddell Sea
Antarc*
Sea ice
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.1410
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1997-Brandini.pdf
Description
Summary:Abstract: The Antarctic sea ice is the site of production of great amounts of dissolved biogenic compounds of a very diverse nature, including potential chelators and reduced nitrogen which are introduced into adjacent surface waters in marginal ice zones during melting periods. The effect of melted brown ice on the development of surface phytoplankton in the Weddell Sea was tested experimentally using natural surface populations and cultured diatoms. The growth of natural and cultured diatoms was enhanced after various additions of melted brown ice. EDTA was also used as a standard chelator in order to compare the chelating capacities of surface water and melted ice. It was demonstrated that surface waters are not limited by lack of chelating compounds, which may originate from ice communities. The role of melted brown ice as a potential source of either ammonium or chelators affecting phytoplankton development in marginal ice zones is discussed. 1.

Similar Items