Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean
Shipboard determinations of dissolved organic P (DOP) concentrations were made for NE subarctic Pacific Ocean samples with three different oxidation-hydrolysis methods: UV irradiation, acid persulfate digestion, and a rigorous method that combines the UV and persulfate treatments (combination method...
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Online Access: | http://hdl.handle.net/10222/27164 https://doi.org/10.4319/lo.1992.37.5.1067 |
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ftdalhouse:oai:DalSpace.library.dal.ca:10222/27164 2023-05-15T18:28:12+02:00 Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean Ridal, J. J. Moore, R. M. 2013-06-19T18:02:28Z http://hdl.handle.net/10222/27164 https://doi.org/10.4319/lo.1992.37.5.1067 en eng Limnology and Oceanography Ridal, J. J., and R. M. Moore. 1992. "Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean." Limnology and Oceanography 37(5): 1067-1075. DOI:10.4319/lo.1992.37.5.1067 0024-3590 http://hdl.handle.net/10222/27164 http://dx.doi.org/10.4319/lo.1992.37.5.1067 37 5 1067 UV irradiation method Marine Dissolved organic phosphorus Chemical analysis Sea water Comparative studies Combination method Acid persulfate digestion Analytical techniques Water analysis article 2013 ftdalhouse https://doi.org/10.4319/lo.1992.37.5.1067 2021-12-29T18:08:42Z Shipboard determinations of dissolved organic P (DOP) concentrations were made for NE subarctic Pacific Ocean samples with three different oxidation-hydrolysis methods: UV irradiation, acid persulfate digestion, and a rigorous method that combines the UV and persulfate treatments (combination method). The UV technique was 71 plus or minus 9% and the persulfate technique 83 plus or minus 9% efficient relative to the combination method for these coastal and open-ocean surface samples. Combination method results indicate that levels of DOP in the mixed layer of the NE Pacific during August and September ranged from 0.17 to 0.38 mu m. These values are comparable to those found for the NW Atlantic in a previous study with similar methodology. A significant inverse correlation (r super(2) = 0.76) was found between DOP, measured by the combination method, and apparent oxygen utilization. Analysis of a small number of samples by crossflow ultrafiltration showed that 75-85% of DOP in surface seawater was comprised of 10,000 NMW) fractions, which formed 33-100% of the total DOP in these waters. Article in Journal/Newspaper Subarctic Dalhousie University: DalSpace Institutional Repository Pacific Limnology and Oceanography 37 5 1067 1075 |
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Open Polar |
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Dalhousie University: DalSpace Institutional Repository |
op_collection_id |
ftdalhouse |
language |
English |
topic |
UV irradiation method Marine Dissolved organic phosphorus Chemical analysis Sea water Comparative studies Combination method Acid persulfate digestion Analytical techniques Water analysis |
spellingShingle |
UV irradiation method Marine Dissolved organic phosphorus Chemical analysis Sea water Comparative studies Combination method Acid persulfate digestion Analytical techniques Water analysis Ridal, J. J. Moore, R. M. Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
topic_facet |
UV irradiation method Marine Dissolved organic phosphorus Chemical analysis Sea water Comparative studies Combination method Acid persulfate digestion Analytical techniques Water analysis |
description |
Shipboard determinations of dissolved organic P (DOP) concentrations were made for NE subarctic Pacific Ocean samples with three different oxidation-hydrolysis methods: UV irradiation, acid persulfate digestion, and a rigorous method that combines the UV and persulfate treatments (combination method). The UV technique was 71 plus or minus 9% and the persulfate technique 83 plus or minus 9% efficient relative to the combination method for these coastal and open-ocean surface samples. Combination method results indicate that levels of DOP in the mixed layer of the NE Pacific during August and September ranged from 0.17 to 0.38 mu m. These values are comparable to those found for the NW Atlantic in a previous study with similar methodology. A significant inverse correlation (r super(2) = 0.76) was found between DOP, measured by the combination method, and apparent oxygen utilization. Analysis of a small number of samples by crossflow ultrafiltration showed that 75-85% of DOP in surface seawater was comprised of 10,000 NMW) fractions, which formed 33-100% of the total DOP in these waters. |
format |
Article in Journal/Newspaper |
author |
Ridal, J. J. Moore, R. M. |
author_facet |
Ridal, J. J. Moore, R. M. |
author_sort |
Ridal, J. J. |
title |
Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
title_short |
Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
title_full |
Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
title_fullStr |
Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
title_full_unstemmed |
Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean |
title_sort |
dissolved organic phosphorus concentrations in the northeast subarctic pacific ocean |
publishDate |
2013 |
url |
http://hdl.handle.net/10222/27164 https://doi.org/10.4319/lo.1992.37.5.1067 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
Limnology and Oceanography Ridal, J. J., and R. M. Moore. 1992. "Dissolved organic phosphorus concentrations in the northeast subarctic Pacific Ocean." Limnology and Oceanography 37(5): 1067-1075. DOI:10.4319/lo.1992.37.5.1067 0024-3590 http://hdl.handle.net/10222/27164 http://dx.doi.org/10.4319/lo.1992.37.5.1067 37 5 1067 |
op_doi |
https://doi.org/10.4319/lo.1992.37.5.1067 |
container_title |
Limnology and Oceanography |
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37 |
container_issue |
5 |
container_start_page |
1067 |
op_container_end_page |
1075 |
_version_ |
1766210577044078592 |