Thresholds of gross primary production for the metabolic balance of marine planktonic communities
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 separa...
Published in: | Limnology and Oceanography |
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crwiley:10.4319/lo.2009.54.3.1015 2024-06-23T07:47:13+00:00 Thresholds of gross primary production for the metabolic balance of marine planktonic communities Duarte, Carlos M. Regaudie-de-Gioux, Aurore 2009 http://dx.doi.org/10.4319/lo.2009.54.3.1015 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2009.54.3.1015 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2009.54.3.1015 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 54, issue 3, page 1015-1022 ISSN 0024-3590 1939-5590 journal-article 2009 crwiley https://doi.org/10.4319/lo.2009.54.3.1015 2024-06-06T04:21:04Z 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 O 2 m −3 d −1 to 9.45 mmol O 2 m −3 d −1 , with those for estuarine and coastal locations reaching 50.60 mmol O 2 m −3 d −1 . Antarctic and ultra‐oligotrophic ecosystems showed the lowest threshold GPP values (<2.2 mmol O 2 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 O 2 m −3 d −1 , consistent with recent estimates of allochthonous inputs of organic carbon to the ocean. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Wiley Online Library Antarctic Indian Pacific Southern Ocean Limnology and Oceanography 54 3 1015 1022 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
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 O 2 m −3 d −1 to 9.45 mmol O 2 m −3 d −1 , with those for estuarine and coastal locations reaching 50.60 mmol O 2 m −3 d −1 . Antarctic and ultra‐oligotrophic ecosystems showed the lowest threshold GPP values (<2.2 mmol O 2 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 O 2 m −3 d −1 , consistent with recent estimates of allochthonous inputs of organic carbon to the ocean. |
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 |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.4319/lo.2009.54.3.1015 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2009.54.3.1015 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2009.54.3.1015 |
geographic |
Antarctic Indian Pacific Southern Ocean |
geographic_facet |
Antarctic Indian Pacific Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Limnology and Oceanography volume 54, issue 3, page 1015-1022 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2009.54.3.1015 |
container_title |
Limnology and Oceanography |
container_volume |
54 |
container_issue |
3 |
container_start_page |
1015 |
op_container_end_page |
1022 |
_version_ |
1802651315306758144 |