How have recent temperature changes affected the efficiency of ocean biological carbon export?
Abstract The ocean's large, microbially mediated reservoirs of carbon are intimately connected with atmospheric CO2 and climate, yet quantifying the feedbacks between them remains an unresolved challenge. Through an idealized mechanistic model, we consider the impact of documented climate chang...
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ftdoajarticles:oai:doaj.org/article:ea925873d5174b12877c05ebeb66e98b 2023-05-15T15:04:05+02:00 How have recent temperature changes affected the efficiency of ocean biological carbon export? B. B. Cael Kelsey Bisson Michael J. Follows 2017-08-01T00:00:00Z https://doi.org/10.1002/lol2.10042 https://doaj.org/article/ea925873d5174b12877c05ebeb66e98b EN eng Wiley https://doi.org/10.1002/lol2.10042 https://doaj.org/toc/2378-2242 2378-2242 doi:10.1002/lol2.10042 https://doaj.org/article/ea925873d5174b12877c05ebeb66e98b Limnology and Oceanography Letters, Vol 2, Iss 4, Pp 113-118 (2017) Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1002/lol2.10042 2022-12-31T07:27:28Z Abstract The ocean's large, microbially mediated reservoirs of carbon are intimately connected with atmospheric CO2 and climate, yet quantifying the feedbacks between them remains an unresolved challenge. Through an idealized mechanistic model, we consider the impact of documented climate change during the past few decades on the efficiency of biological carbon export out of the surface ocean. This model is grounded in universal metabolic phenomena, describing export efficiency's temperature dependence in terms of the differential temperature sensitivity of phototrophic and heterotrophic metabolism. Temperature changes are suggested to have caused a statistically significant decrease in export efficiency of 1.5% ± 0.4% over the past 33 yr. Larger changes are suggested in the midlatitudes and Arctic. This interpretation is robust across multiple sea surface temperature and net primary production data products. The same metabolic mechanism may have resulted in much larger changes e.g., in response to the large temperature shifts between glacial and interglacial time periods. Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Limnology and Oceanography Letters 2 4 113 118 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
topic |
Oceanography GC1-1581 |
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Oceanography GC1-1581 B. B. Cael Kelsey Bisson Michael J. Follows How have recent temperature changes affected the efficiency of ocean biological carbon export? |
topic_facet |
Oceanography GC1-1581 |
description |
Abstract The ocean's large, microbially mediated reservoirs of carbon are intimately connected with atmospheric CO2 and climate, yet quantifying the feedbacks between them remains an unresolved challenge. Through an idealized mechanistic model, we consider the impact of documented climate change during the past few decades on the efficiency of biological carbon export out of the surface ocean. This model is grounded in universal metabolic phenomena, describing export efficiency's temperature dependence in terms of the differential temperature sensitivity of phototrophic and heterotrophic metabolism. Temperature changes are suggested to have caused a statistically significant decrease in export efficiency of 1.5% ± 0.4% over the past 33 yr. Larger changes are suggested in the midlatitudes and Arctic. This interpretation is robust across multiple sea surface temperature and net primary production data products. The same metabolic mechanism may have resulted in much larger changes e.g., in response to the large temperature shifts between glacial and interglacial time periods. |
format |
Article in Journal/Newspaper |
author |
B. B. Cael Kelsey Bisson Michael J. Follows |
author_facet |
B. B. Cael Kelsey Bisson Michael J. Follows |
author_sort |
B. B. Cael |
title |
How have recent temperature changes affected the efficiency of ocean biological carbon export? |
title_short |
How have recent temperature changes affected the efficiency of ocean biological carbon export? |
title_full |
How have recent temperature changes affected the efficiency of ocean biological carbon export? |
title_fullStr |
How have recent temperature changes affected the efficiency of ocean biological carbon export? |
title_full_unstemmed |
How have recent temperature changes affected the efficiency of ocean biological carbon export? |
title_sort |
how have recent temperature changes affected the efficiency of ocean biological carbon export? |
publisher |
Wiley |
publishDate |
2017 |
url |
https://doi.org/10.1002/lol2.10042 https://doaj.org/article/ea925873d5174b12877c05ebeb66e98b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Limnology and Oceanography Letters, Vol 2, Iss 4, Pp 113-118 (2017) |
op_relation |
https://doi.org/10.1002/lol2.10042 https://doaj.org/toc/2378-2242 2378-2242 doi:10.1002/lol2.10042 https://doaj.org/article/ea925873d5174b12877c05ebeb66e98b |
op_doi |
https://doi.org/10.1002/lol2.10042 |
container_title |
Limnology and Oceanography Letters |
container_volume |
2 |
container_issue |
4 |
container_start_page |
113 |
op_container_end_page |
118 |
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1766335902723866624 |