Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone
The dissolution of CaCO3 is one of the ways ocean acidification can, potentially, greatly affect the ballast of aggregates. A diminution of the ballast could reduce the settling speed of aggregates, resulting in a change in the carbon flux to the deep sea. This would mean lower amounts of more refra...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2015
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.846489 https://doi.org/10.1594/PANGAEA.846489 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.846489 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.846489 2023-05-15T17:49:40+02:00 Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone Mendes, Pedro André Thomsen, Laurenz 2015-05-27 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.846489 https://doi.org/10.1594/PANGAEA.846489 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.846489 https://doi.org/10.1594/PANGAEA.846489 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Mendes, Pedro André; Thomsen, Laurenz (2012): Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone. PLoS ONE, 7(12), e50865, https://doi.org/10.1371/journal.pone.0050865 BIOACID Biological Impacts of Ocean Acidification Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.846489 https://doi.org/10.1371/journal.pone.0050865 2023-01-20T07:33:27Z The dissolution of CaCO3 is one of the ways ocean acidification can, potentially, greatly affect the ballast of aggregates. A diminution of the ballast could reduce the settling speed of aggregates, resulting in a change in the carbon flux to the deep sea. This would mean lower amounts of more refractory organic matter reaching the ocean floor. This work aimed to determine the effect of ocean acidification on the ballast of sinking surface aggregates. Our hypothesis was that the decrease of pH will increase the dissolution of particulate inorganic carbon ballasting the aggregates, consequently reducing their settling velocity and increasing their residence time in the upper twilight zone. Using a new methodology for simulation of aggregate settling, our results suggest that future pCO2 conditions can significantly change the ballast composition of sinking aggregates. The change in aggregate composition had an effect on the size distribution of the aggregates, with a shift to smaller aggregates. A change also occurred in the settling velocity of the particles, which would lead to a higher residence time in the water column, where they could be continuously degraded. In the environment, such an effect would result in a reduction of the carbon flux to the deep-sea. This reduction would impact those benthic communities, which rely on the vertical flow of carbon as primary source of energy. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
BIOACID Biological Impacts of Ocean Acidification |
spellingShingle |
BIOACID Biological Impacts of Ocean Acidification Mendes, Pedro André Thomsen, Laurenz Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
topic_facet |
BIOACID Biological Impacts of Ocean Acidification |
description |
The dissolution of CaCO3 is one of the ways ocean acidification can, potentially, greatly affect the ballast of aggregates. A diminution of the ballast could reduce the settling speed of aggregates, resulting in a change in the carbon flux to the deep sea. This would mean lower amounts of more refractory organic matter reaching the ocean floor. This work aimed to determine the effect of ocean acidification on the ballast of sinking surface aggregates. Our hypothesis was that the decrease of pH will increase the dissolution of particulate inorganic carbon ballasting the aggregates, consequently reducing their settling velocity and increasing their residence time in the upper twilight zone. Using a new methodology for simulation of aggregate settling, our results suggest that future pCO2 conditions can significantly change the ballast composition of sinking aggregates. The change in aggregate composition had an effect on the size distribution of the aggregates, with a shift to smaller aggregates. A change also occurred in the settling velocity of the particles, which would lead to a higher residence time in the water column, where they could be continuously degraded. In the environment, such an effect would result in a reduction of the carbon flux to the deep-sea. This reduction would impact those benthic communities, which rely on the vertical flow of carbon as primary source of energy. |
format |
Dataset |
author |
Mendes, Pedro André Thomsen, Laurenz |
author_facet |
Mendes, Pedro André Thomsen, Laurenz |
author_sort |
Mendes, Pedro André |
title |
Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
title_short |
Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
title_full |
Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
title_fullStr |
Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
title_full_unstemmed |
Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone |
title_sort |
effects of ocean acidification on the ballast of surface aggregates sinking through the twilight zone |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.846489 https://doi.org/10.1594/PANGAEA.846489 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Mendes, Pedro André; Thomsen, Laurenz (2012): Effects of Ocean Acidification on the Ballast of Surface Aggregates Sinking through the Twilight Zone. PLoS ONE, 7(12), e50865, https://doi.org/10.1371/journal.pone.0050865 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.846489 https://doi.org/10.1594/PANGAEA.846489 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.846489 https://doi.org/10.1371/journal.pone.0050865 |
_version_ |
1766156080864296960 |