Inducing phytoplankton iron limitation in iron-replete coastal waters with a strong chelating ligand
Article Abstract:
Induction of phytoplankton iron (Fe) limitation in coastal waters replete with iron through use of a strong chelating ligand is discussed. The siderophore desferrioxamine B (DFOB) was used in an Fe-removal experiment in a classic Type 1 area near the northern California coast where dissolved Fe levels were very high. Results show that adding the exogenous chelator effectively stopped biological Fe uptake and community growth. Fe has a vital role in supporting prolific diatom blooms and high biological productivity levels found in some California coastal areas, as can be seen from this work.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1999
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Manipulating iron availability in nearshore waters
Article Abstract:
Manipulation of iron availability in nearshore waters is discussed with the presentation of results of natural population incubation experiments from costal upwelling waters off the California coast in which the fungal siderophore desferriferrioxime B (DFB) was added to cut down iron assimilation. Findings show that DFB can be used to manipulate biologically accessible iron to find out how iron affects community structure of algae and carbon cycling in waters replete with iron.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1999
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An iron limitation mosaic in the California upwelling regime
Article Abstract:
A four-level classification scheme can be used to describe the varying degrees of Fe limitation in the coastal upwelling area of central California. Fe limitation has a significant effect on the marine ecosystem of coastal waters, occurring at levels from Fe replete, to Fe-stressed, moderately Fe-limited, and severely Fe-limited. Fe limitation can affect phytoplankton community structure, nutrient cycling, and the entire biological assemblage.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1998
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