Report

Robotic Observations of Enhanced Carbon Biomass and Export at 55°S During SOFeX

See allHide authors and affiliations

Science  16 Apr 2004:
Vol. 304, Issue 5669, pp. 417-420
DOI: 10.1126/science.1087717

You are currently viewing the abstract.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution

Abstract

Autonomous floats profiling in high-nitrate low-silicate waters of the Southern Ocean observed carbon biomass variability and carbon exported to depths of 100 m during the 2002 Southern Ocean Iron Experiment (SOFeX) to detect the effects of iron fertilization of surface water there. Control and “in-patch” measurements documented a greater than fourfold enhancement of carbon biomass in the iron-amended waters. Carbon export through 100 m increased two- to sixfold as the patch subducted below a front. The molar ratio of iron added to carbon exported ranged between 104 and 105. The biomass buildup and export were much higher than expected for iron-amended low-silicate waters.

View Full Text