Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions
We report the seasonal and vertical variations of dimethylsulfide (DMS) and its precursor dimethylsulfoniopropionate (DMSP) in fast ice at Cape Evans, McMurdo Sound (Antarctica) during the spring-summer transition in 2011 and winter-spring transition in 2012. We compare the variations of DMS,P obser...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | http://imis.nioz.nl/imis.php?module=ref&refid=240886 |
id |
ftnioz:oai:imis.nioz.nl:240886 |
---|---|
record_format |
openpolar |
spelling |
ftnioz:oai:imis.nioz.nl:240886 2023-05-15T13:47:57+02:00 Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions Carnat, G. Zhou, J. Papakyriakou, T. Delille, B. Goossens, T. Haskell, T. Schoemann, V. Fripiat, F. Rintala, J.-M. Tison, J.-L. 2014 http://imis.nioz.nl/imis.php?module=ref&refid=240886 en eng info:eu-repo/semantics/altIdentifier/wos/000337632500010 info:eu-repo/semantics/altIdentifier/doi/.org/10.1002/2013JC009381 http://imis.nioz.nl/imis.php?module=ref&refid=240886 info:eu-repo/semantics/closedAccess %3Ci%3EJ.+Geophys.+Res.+Oceans%28119%29%3C%2Fi%3E%3A+2882-2905.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1002%2F2013JC009381%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1002%2F2013JC009381%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftnioz https://doi.org/10.1002/2013JC009381 2022-05-01T13:59:41Z We report the seasonal and vertical variations of dimethylsulfide (DMS) and its precursor dimethylsulfoniopropionate (DMSP) in fast ice at Cape Evans, McMurdo Sound (Antarctica) during the spring-summer transition in 2011 and winter-spring transition in 2012. We compare the variations of DMS,P observed to the seasonal evolution of the ice algal biomass and of the physical properties of the ice cover, with emphasis on the ice texture and brine dynamics. Isolated DMS and DMSP maxima were found during both seasonal episodes in interior ice and corresponded to the occurrence of platelet crystals in the ice texture. We show that platelet crystals formation corresponded in time and depth to the incorporation of dinoflagellates (strong DMSP producers) in the ice cover. We also show that platelet crystals could modify the environmental stresses on algal cells and perturb the vertical redistribution of DMS,P concentrations. We show that during the winter-spring transition in 2012, the DMS,P profiles were strongly influenced by the development and decline of a diatom-dominated bloom in the bottom ice, with DMSP variations remarkably following chl a variations. During the spring-summer transition in 2011, the increase in brine volume fraction (influencing ice permeability) on warming was shown to trigger (1) an important release of DMS to the under-ice water through brine convection and (2) a vertical redistribution of DMSP across the ice. Article in Journal/Newspaper Antarc* Antarctica Ice Shelf McMurdo Sound NIOZ Repository (Royal Netherlands Institute for Sea Research) Cape Evans ENVELOPE(161.550,161.550,-75.100,-75.100) McMurdo Sound Journal of Geophysical Research: Oceans 119 5 2882 2905 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
We report the seasonal and vertical variations of dimethylsulfide (DMS) and its precursor dimethylsulfoniopropionate (DMSP) in fast ice at Cape Evans, McMurdo Sound (Antarctica) during the spring-summer transition in 2011 and winter-spring transition in 2012. We compare the variations of DMS,P observed to the seasonal evolution of the ice algal biomass and of the physical properties of the ice cover, with emphasis on the ice texture and brine dynamics. Isolated DMS and DMSP maxima were found during both seasonal episodes in interior ice and corresponded to the occurrence of platelet crystals in the ice texture. We show that platelet crystals formation corresponded in time and depth to the incorporation of dinoflagellates (strong DMSP producers) in the ice cover. We also show that platelet crystals could modify the environmental stresses on algal cells and perturb the vertical redistribution of DMS,P concentrations. We show that during the winter-spring transition in 2012, the DMS,P profiles were strongly influenced by the development and decline of a diatom-dominated bloom in the bottom ice, with DMSP variations remarkably following chl a variations. During the spring-summer transition in 2011, the increase in brine volume fraction (influencing ice permeability) on warming was shown to trigger (1) an important release of DMS to the under-ice water through brine convection and (2) a vertical redistribution of DMSP across the ice. |
format |
Article in Journal/Newspaper |
author |
Carnat, G. Zhou, J. Papakyriakou, T. Delille, B. Goossens, T. Haskell, T. Schoemann, V. Fripiat, F. Rintala, J.-M. Tison, J.-L. |
spellingShingle |
Carnat, G. Zhou, J. Papakyriakou, T. Delille, B. Goossens, T. Haskell, T. Schoemann, V. Fripiat, F. Rintala, J.-M. Tison, J.-L. Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
author_facet |
Carnat, G. Zhou, J. Papakyriakou, T. Delille, B. Goossens, T. Haskell, T. Schoemann, V. Fripiat, F. Rintala, J.-M. Tison, J.-L. |
author_sort |
Carnat, G. |
title |
Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
title_short |
Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
title_full |
Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
title_fullStr |
Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
title_full_unstemmed |
Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
title_sort |
physical and biological controls on dms,p dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions |
publishDate |
2014 |
url |
http://imis.nioz.nl/imis.php?module=ref&refid=240886 |
long_lat |
ENVELOPE(161.550,161.550,-75.100,-75.100) |
geographic |
Cape Evans McMurdo Sound |
geographic_facet |
Cape Evans McMurdo Sound |
genre |
Antarc* Antarctica Ice Shelf McMurdo Sound |
genre_facet |
Antarc* Antarctica Ice Shelf McMurdo Sound |
op_source |
%3Ci%3EJ.+Geophys.+Res.+Oceans%28119%29%3C%2Fi%3E%3A+2882-2905.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1002%2F2013JC009381%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1002%2F2013JC009381%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000337632500010 info:eu-repo/semantics/altIdentifier/doi/.org/10.1002/2013JC009381 http://imis.nioz.nl/imis.php?module=ref&refid=240886 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/2013JC009381 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
119 |
container_issue |
5 |
container_start_page |
2882 |
op_container_end_page |
2905 |
_version_ |
1766248042982277120 |