Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ...
In vast regions of the world's oceans, phytoplankton, in particular diatoms, are growth-limited by low concentrations of the micronutrient, iron. SERIES (Subarctic Ecosystem Response to Iron Enrichment Study) was performed near Ocean Station Papa (144.45°W, 50.20°N) to determine the phytoplankt...
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University of British Columbia
2009
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ftdatacite:10.14288/1.0092292 2024-04-28T08:39:56+00:00 Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... Marchetti, Adrian 2009 https://dx.doi.org/10.14288/1.0092292 https://doi.library.ubc.ca/10.14288/1.0092292 en eng University of British Columbia article-journal Text ScholarlyArticle 2009 ftdatacite https://doi.org/10.14288/1.0092292 2024-04-02T09:44:58Z In vast regions of the world's oceans, phytoplankton, in particular diatoms, are growth-limited by low concentrations of the micronutrient, iron. SERIES (Subarctic Ecosystem Response to Iron Enrichment Study) was performed near Ocean Station Papa (144.45°W, 50.20°N) to determine the phytoplankton response to iron enrichment in high nutrient, low chlorophyll (HNLC) waters of the NE subarctic Pacific. Chlorophyll a (chl a) increased 21 times from 0.3 mg m⁻³ to a peak of 6.3 mg m⁻³18 days after the initial addition of iron. Over the duration of the iron-induced phytoplankton bloom, all macronutrient concentrations were drawn down with silicic acid (Si(OH)4) being depleted to low and possibly diatom growth-limiting concentrations due to a >2 Si(OH)₄ : 1 nitrate (NO₃) drawdown ratio in the later stages of the bloom. Microplankton (>20 μm), which initially accounted for 25% of the phytoplankton biomass and increased by a factor of 60 after iron addition, consisted primarily of the pennate diatom genera ... Text Subarctic DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
In vast regions of the world's oceans, phytoplankton, in particular diatoms, are growth-limited by low concentrations of the micronutrient, iron. SERIES (Subarctic Ecosystem Response to Iron Enrichment Study) was performed near Ocean Station Papa (144.45°W, 50.20°N) to determine the phytoplankton response to iron enrichment in high nutrient, low chlorophyll (HNLC) waters of the NE subarctic Pacific. Chlorophyll a (chl a) increased 21 times from 0.3 mg m⁻³ to a peak of 6.3 mg m⁻³18 days after the initial addition of iron. Over the duration of the iron-induced phytoplankton bloom, all macronutrient concentrations were drawn down with silicic acid (Si(OH)4) being depleted to low and possibly diatom growth-limiting concentrations due to a >2 Si(OH)₄ : 1 nitrate (NO₃) drawdown ratio in the later stages of the bloom. Microplankton (>20 μm), which initially accounted for 25% of the phytoplankton biomass and increased by a factor of 60 after iron addition, consisted primarily of the pennate diatom genera ... |
format |
Text |
author |
Marchetti, Adrian |
spellingShingle |
Marchetti, Adrian Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
author_facet |
Marchetti, Adrian |
author_sort |
Marchetti, Adrian |
title |
Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
title_short |
Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
title_full |
Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
title_fullStr |
Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
title_full_unstemmed |
Ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus Pseudo-nitzschia ... |
title_sort |
ecophysiological aspects of iron nutrition and domoic acid production in oceanic and coastal diatoms of the genus pseudo-nitzschia ... |
publisher |
University of British Columbia |
publishDate |
2009 |
url |
https://dx.doi.org/10.14288/1.0092292 https://doi.library.ubc.ca/10.14288/1.0092292 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_doi |
https://doi.org/10.14288/1.0092292 |
_version_ |
1797570764497485824 |