An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates
The flux of organic particles below the mixed layer is one major pathway of carbon from the surface into the deep ocean. The magnitude of this export flux depends on two major processes--remineralization rates and sinking velocities. Here, we present an efficient method to measure sinking velocities...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.822125 2023-05-15T17:51:29+02:00 An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates Bach, Lennart Thomas Riebesell, Ulf Sett, Scarlett Febin, Sarah Rzepka, Paul Schulz, Kai Georg 2013-11-14 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.822125 https://doi.org/10.1594/PANGAEA.822125 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.822125 https://doi.org/10.1594/PANGAEA.822125 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bach, Lennart Thomas; Riebesell, Ulf; Sett, Scarlett; Febin, Sarah; Rzepka, Paul; Schulz, Kai Georg (2012): An approach for particle sinking velocity measurements in the 3–400 µm size range and considerations on the effect of temperature on sinking rates. Marine Biology, 159(8), 1853-1864, https://doi.org/10.1007/s00227-012-1945-2 BIOACID Biological Impacts of Ocean Acidification Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.822125 https://doi.org/10.1007/s00227-012-1945-2 2023-01-20T07:33:11Z The flux of organic particles below the mixed layer is one major pathway of carbon from the surface into the deep ocean. The magnitude of this export flux depends on two major processes--remineralization rates and sinking velocities. Here, we present an efficient method to measure sinking velocities of particles in the size range from approximately 3-400 µm by means of video microscopy (FlowCAM®). The method allows rapid measurement and automated analysis of mixed samples and was tested with polystyrene beads, different phytoplankton species, and sediment trap material. Sinking velocities of polystyrene beads were close to theoretical values calculated from Stokes' Law. Sinking velocities of the investigated phytoplankton species were in reasonable agreement with published literature values and sinking velocities of material collected in sediment trap increased with particle size. Temperature had a strong effect on sinking velocities due to its influence on seawater viscosity and density. An increase in 9 °C led to a measured increase in sinking velocities of 40 %. According to this temperature effect, an average temperature increase in 2 °C as projected for the sea surface by the end of this century could increase sinking velocities by about 6 % which might have feedbacks on carbon export into the deep ocean. 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 Bach, Lennart Thomas Riebesell, Ulf Sett, Scarlett Febin, Sarah Rzepka, Paul Schulz, Kai Georg An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
topic_facet |
BIOACID Biological Impacts of Ocean Acidification |
description |
The flux of organic particles below the mixed layer is one major pathway of carbon from the surface into the deep ocean. The magnitude of this export flux depends on two major processes--remineralization rates and sinking velocities. Here, we present an efficient method to measure sinking velocities of particles in the size range from approximately 3-400 µm by means of video microscopy (FlowCAM®). The method allows rapid measurement and automated analysis of mixed samples and was tested with polystyrene beads, different phytoplankton species, and sediment trap material. Sinking velocities of polystyrene beads were close to theoretical values calculated from Stokes' Law. Sinking velocities of the investigated phytoplankton species were in reasonable agreement with published literature values and sinking velocities of material collected in sediment trap increased with particle size. Temperature had a strong effect on sinking velocities due to its influence on seawater viscosity and density. An increase in 9 °C led to a measured increase in sinking velocities of 40 %. According to this temperature effect, an average temperature increase in 2 °C as projected for the sea surface by the end of this century could increase sinking velocities by about 6 % which might have feedbacks on carbon export into the deep ocean. |
format |
Dataset |
author |
Bach, Lennart Thomas Riebesell, Ulf Sett, Scarlett Febin, Sarah Rzepka, Paul Schulz, Kai Georg |
author_facet |
Bach, Lennart Thomas Riebesell, Ulf Sett, Scarlett Febin, Sarah Rzepka, Paul Schulz, Kai Georg |
author_sort |
Bach, Lennart Thomas |
title |
An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
title_short |
An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
title_full |
An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
title_fullStr |
An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
title_full_unstemmed |
An approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
title_sort |
approach for particle sinking velocity measurements in the 3-400 µm size range and considerations on the effect of temperature on sinking rates |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.822125 https://doi.org/10.1594/PANGAEA.822125 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Bach, Lennart Thomas; Riebesell, Ulf; Sett, Scarlett; Febin, Sarah; Rzepka, Paul; Schulz, Kai Georg (2012): An approach for particle sinking velocity measurements in the 3–400 µm size range and considerations on the effect of temperature on sinking rates. Marine Biology, 159(8), 1853-1864, https://doi.org/10.1007/s00227-012-1945-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.822125 https://doi.org/10.1594/PANGAEA.822125 |
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.822125 https://doi.org/10.1007/s00227-012-1945-2 |
_version_ |
1766158641108353024 |