Thresholds of gross primary production for the metabolic balance of marine planktonic communities
8 pages, 1 figure, 1 table.-- Full-text available Open Access at the journal site. The notion that less productive marine planktonic communities tend to be heterotrophic was tested by synthesizing reported estimates of the relationships between the net community production or community respiration a...
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2009
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ftcsic:oai:digital.csic.es:10261/17710 2024-02-11T09:58:51+01:00 Thresholds of gross primary production for the metabolic balance of marine planktonic communities Duarte, Carlos M. Regaudie de Gioux, Aurore 2009-05 918459 bytes application/pdf http://hdl.handle.net/10261/17710 en eng American Society of Limnology and Oceanography http://aslo.org/lo/toc/vol_54/issue_3/1015.pdf Limnology and Oceanography 54(3): 1015-1022 (2009) 0024-3590 http://hdl.handle.net/10261/17710 none artículo http://purl.org/coar/resource_type/c_6501 2009 ftcsic 2024-01-16T09:24:01Z 8 pages, 1 figure, 1 table.-- Full-text available Open Access at the journal site. The notion that less productive marine planktonic communities tend to be heterotrophic was tested by synthesizing reported estimates of the relationships between the net community production or community respiration and gross primary production (GPP), allowing calculation of the threshold GPP separating less productive, heterotrophic communities from more productive, autotrophic ones. A total of 35 estimates of the threshold GPP were assembled, derived from reports of comparative analyses of individual regions (Mediterranean Sea, Atlantic Ocean, Southern Ocean, Pacific Ocean, and Indian Ocean) and global comparative analyses for open-ocean and coastal environments, time-series analyses of changes in planktonic metabolism at individual locations, experimental manipulations in mesocosms, and a semi-empirical modeling exercise. Planktonic communities of the open ocean and continental shelf showed threshold GPP values ranging 30-fold, from 0.34 mmol O2 m-3 d-1 to 9.45 mmol O2 m-3 d-1, with those for estuarine and coastal locations reaching 50.60 mmol O2 m-3 d-1. Antarctic and ultra-oligotrophic ecosystems showed the lowest threshold GPP values (<2.2 mmol O2 m-3 d-1), with a general consistency across approaches for a given ecosystem. Plankton community respiration in the absence of or under low primary production is not negligible and is supported by semi-labile dissolved organic carbon. The analysis of GPP thresholds suggests that allochthonous organic inputs to the less productive regions of the ocean must be in the order of mmol O2 m-3 d-1, consistent with recent estimates of allochthonous inputs of organic carbon to the ocean. This research was supported by project "COCA: Flujo de carbono en la región Canaria: acoplamiento entre exportación costera y demanda oceánica", "RODA: Remolinos oceánicos y deposición atmosférica: efectos biológicos y biogeoquímicos en aguas del Atlántico Este", "ATOS: Atmospheric inputs of organic ... Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Indian Pacific Remolinos ENVELOPE(-56.000,-56.000,-63.350,-63.350) Southern Ocean |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
8 pages, 1 figure, 1 table.-- Full-text available Open Access at the journal site. The notion that less productive marine planktonic communities tend to be heterotrophic was tested by synthesizing reported estimates of the relationships between the net community production or community respiration and gross primary production (GPP), allowing calculation of the threshold GPP separating less productive, heterotrophic communities from more productive, autotrophic ones. A total of 35 estimates of the threshold GPP were assembled, derived from reports of comparative analyses of individual regions (Mediterranean Sea, Atlantic Ocean, Southern Ocean, Pacific Ocean, and Indian Ocean) and global comparative analyses for open-ocean and coastal environments, time-series analyses of changes in planktonic metabolism at individual locations, experimental manipulations in mesocosms, and a semi-empirical modeling exercise. Planktonic communities of the open ocean and continental shelf showed threshold GPP values ranging 30-fold, from 0.34 mmol O2 m-3 d-1 to 9.45 mmol O2 m-3 d-1, with those for estuarine and coastal locations reaching 50.60 mmol O2 m-3 d-1. Antarctic and ultra-oligotrophic ecosystems showed the lowest threshold GPP values (<2.2 mmol O2 m-3 d-1), with a general consistency across approaches for a given ecosystem. Plankton community respiration in the absence of or under low primary production is not negligible and is supported by semi-labile dissolved organic carbon. The analysis of GPP thresholds suggests that allochthonous organic inputs to the less productive regions of the ocean must be in the order of mmol O2 m-3 d-1, consistent with recent estimates of allochthonous inputs of organic carbon to the ocean. This research was supported by project "COCA: Flujo de carbono en la región Canaria: acoplamiento entre exportación costera y demanda oceánica", "RODA: Remolinos oceánicos y deposición atmosférica: efectos biológicos y biogeoquímicos en aguas del Atlántico Este", "ATOS: Atmospheric inputs of organic ... |
format |
Article in Journal/Newspaper |
author |
Duarte, Carlos M. Regaudie de Gioux, Aurore |
spellingShingle |
Duarte, Carlos M. Regaudie de Gioux, Aurore Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
author_facet |
Duarte, Carlos M. Regaudie de Gioux, Aurore |
author_sort |
Duarte, Carlos M. |
title |
Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
title_short |
Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
title_full |
Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
title_fullStr |
Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
title_full_unstemmed |
Thresholds of gross primary production for the metabolic balance of marine planktonic communities |
title_sort |
thresholds of gross primary production for the metabolic balance of marine planktonic communities |
publisher |
American Society of Limnology and Oceanography |
publishDate |
2009 |
url |
http://hdl.handle.net/10261/17710 |
long_lat |
ENVELOPE(-56.000,-56.000,-63.350,-63.350) |
geographic |
Antarctic Indian Pacific Remolinos Southern Ocean |
geographic_facet |
Antarctic Indian Pacific Remolinos Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://aslo.org/lo/toc/vol_54/issue_3/1015.pdf Limnology and Oceanography 54(3): 1015-1022 (2009) 0024-3590 http://hdl.handle.net/10261/17710 |
op_rights |
none |
_version_ |
1790594637542457344 |