What controls phytoplankton production in nutrient-rich areas of the open sea
The oceans play a critical role in regulating the global carbon cycle. Deep-ocean waters are roughly 200% supersaturated with CO{sub 2} compared to surface waters, which are in contact with the atmosphere. This difference is due to the flux of photosynthetically derived organic material from surface...
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ftosti:oai:osti.gov:5823936 2023-07-30T04:07:04+02:00 What controls phytoplankton production in nutrient-rich areas of the open sea Weiler, C.S. 2008-06-30 application/pdf http://www.osti.gov/servlets/purl/5823936 https://www.osti.gov/biblio/5823936 unknown http://www.osti.gov/servlets/purl/5823936 https://www.osti.gov/biblio/5823936 54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES PHYTOPLANKTON PLANT GROWTH AQUATIC ECOSYSTEMS CARBON CYCLE CARBON DIOXIDE IRON LIMNOLOGY MEETINGS NUTRIENTS OCEANOGRAPHY PHOTOSYNTHESIS SEAS SURFACE WATERS AQUATIC ORGANISMS CARBON COMPOUNDS CARBON OXIDES CHALCOGENIDES CHEMICAL REACTIONS ECOSYSTEMS ELEMENTS GROWTH METALS OXIDES OXYGEN COMPOUNDS PHOTOCHEMICAL REACTIONS PLANKTON PLANTS SYNTHESIS TRANSITION ELEMENTS 2008 ftosti 2023-07-11T10:42:50Z The oceans play a critical role in regulating the global carbon cycle. Deep-ocean waters are roughly 200% supersaturated with CO{sub 2} compared to surface waters, which are in contact with the atmosphere. This difference is due to the flux of photosynthetically derived organic material from surface to deep waters and its subsequent remineralization, i.e. the biological pump''. The pump is a complex phytoplankton-based ecosystem. the paradoxical nature of ocean regions containing high nutrients and low phytoplankton populations has intrigued biological oceanographers for many years. Hypotheses to explain the paradox include the regulation of productivity by light, temperature, zooplankton grazing, and trace metal limitation and/or toxicity. To date, none of the hypotheses, or combinations thereof, has emerged as a widely accepted explanation for why the nitrogen and phosphorus are not depleted in these regions of the oceans. Recently, new evidence has emerged which supports the hypothesis that iron limitation regulates primary production in these areas. This has stimulated discussions of the feasibility of fertilizing parts the Southern Ocean with iron, and thus sequestering additional atmospheric CO{sub 2} in the deep oceans, where it would remain over the next few centuries. The economic, social, and ethical concerns surrounding such a proposition, along with the outstanding scientific issues, call for rigorous discussion and debate on the regulation of productivity in these regions. To this end, The American Society of Limnology and Oceanography (ASLO) held a Special Symposium on the topic Feb. 22--24th, 1991. Participants included leading authorities, from the US and abroad, on physical, chemical, and biological oceanography, plant physiology, microbiology, and trace metal chemistry. Representatives from government agencies and industry were also present. Other/Unknown Material Southern Ocean SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Southern Ocean |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES PHYTOPLANKTON PLANT GROWTH AQUATIC ECOSYSTEMS CARBON CYCLE CARBON DIOXIDE IRON LIMNOLOGY MEETINGS NUTRIENTS OCEANOGRAPHY PHOTOSYNTHESIS SEAS SURFACE WATERS AQUATIC ORGANISMS CARBON COMPOUNDS CARBON OXIDES CHALCOGENIDES CHEMICAL REACTIONS ECOSYSTEMS ELEMENTS GROWTH METALS OXIDES OXYGEN COMPOUNDS PHOTOCHEMICAL REACTIONS PLANKTON PLANTS SYNTHESIS TRANSITION ELEMENTS |
spellingShingle |
54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES PHYTOPLANKTON PLANT GROWTH AQUATIC ECOSYSTEMS CARBON CYCLE CARBON DIOXIDE IRON LIMNOLOGY MEETINGS NUTRIENTS OCEANOGRAPHY PHOTOSYNTHESIS SEAS SURFACE WATERS AQUATIC ORGANISMS CARBON COMPOUNDS CARBON OXIDES CHALCOGENIDES CHEMICAL REACTIONS ECOSYSTEMS ELEMENTS GROWTH METALS OXIDES OXYGEN COMPOUNDS PHOTOCHEMICAL REACTIONS PLANKTON PLANTS SYNTHESIS TRANSITION ELEMENTS Weiler, C.S. What controls phytoplankton production in nutrient-rich areas of the open sea |
topic_facet |
54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES PHYTOPLANKTON PLANT GROWTH AQUATIC ECOSYSTEMS CARBON CYCLE CARBON DIOXIDE IRON LIMNOLOGY MEETINGS NUTRIENTS OCEANOGRAPHY PHOTOSYNTHESIS SEAS SURFACE WATERS AQUATIC ORGANISMS CARBON COMPOUNDS CARBON OXIDES CHALCOGENIDES CHEMICAL REACTIONS ECOSYSTEMS ELEMENTS GROWTH METALS OXIDES OXYGEN COMPOUNDS PHOTOCHEMICAL REACTIONS PLANKTON PLANTS SYNTHESIS TRANSITION ELEMENTS |
description |
The oceans play a critical role in regulating the global carbon cycle. Deep-ocean waters are roughly 200% supersaturated with CO{sub 2} compared to surface waters, which are in contact with the atmosphere. This difference is due to the flux of photosynthetically derived organic material from surface to deep waters and its subsequent remineralization, i.e. the biological pump''. The pump is a complex phytoplankton-based ecosystem. the paradoxical nature of ocean regions containing high nutrients and low phytoplankton populations has intrigued biological oceanographers for many years. Hypotheses to explain the paradox include the regulation of productivity by light, temperature, zooplankton grazing, and trace metal limitation and/or toxicity. To date, none of the hypotheses, or combinations thereof, has emerged as a widely accepted explanation for why the nitrogen and phosphorus are not depleted in these regions of the oceans. Recently, new evidence has emerged which supports the hypothesis that iron limitation regulates primary production in these areas. This has stimulated discussions of the feasibility of fertilizing parts the Southern Ocean with iron, and thus sequestering additional atmospheric CO{sub 2} in the deep oceans, where it would remain over the next few centuries. The economic, social, and ethical concerns surrounding such a proposition, along with the outstanding scientific issues, call for rigorous discussion and debate on the regulation of productivity in these regions. To this end, The American Society of Limnology and Oceanography (ASLO) held a Special Symposium on the topic Feb. 22--24th, 1991. Participants included leading authorities, from the US and abroad, on physical, chemical, and biological oceanography, plant physiology, microbiology, and trace metal chemistry. Representatives from government agencies and industry were also present. |
author |
Weiler, C.S. |
author_facet |
Weiler, C.S. |
author_sort |
Weiler, C.S. |
title |
What controls phytoplankton production in nutrient-rich areas of the open sea |
title_short |
What controls phytoplankton production in nutrient-rich areas of the open sea |
title_full |
What controls phytoplankton production in nutrient-rich areas of the open sea |
title_fullStr |
What controls phytoplankton production in nutrient-rich areas of the open sea |
title_full_unstemmed |
What controls phytoplankton production in nutrient-rich areas of the open sea |
title_sort |
what controls phytoplankton production in nutrient-rich areas of the open sea |
publishDate |
2008 |
url |
http://www.osti.gov/servlets/purl/5823936 https://www.osti.gov/biblio/5823936 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://www.osti.gov/servlets/purl/5823936 https://www.osti.gov/biblio/5823936 |
_version_ |
1772820158054662144 |