The role of sex in the sedimentation of a marine diatom bloom
A longitudinal transect in the Atlantic sector of the Southern Ocean extending from the ice‐covered Weddell Sea across the Antarctic Circumpolar Current and into the Polar Frontal Zone was studied repeatedly during the austral spring. The centric diatom Corethron criophilum was found at most station...
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crwiley:10.4319/lo.1995.40.1.0200 2024-05-19T07:31:28+00:00 The role of sex in the sedimentation of a marine diatom bloom Crawford, Richard M. 1995 http://dx.doi.org/10.4319/lo.1995.40.1.0200 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1995.40.1.0200 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1995.40.1.0200 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 40, issue 1, page 200-204 ISSN 0024-3590 1939-5590 journal-article 1995 crwiley https://doi.org/10.4319/lo.1995.40.1.0200 2024-04-25T08:30:01Z A longitudinal transect in the Atlantic sector of the Southern Ocean extending from the ice‐covered Weddell Sea across the Antarctic Circumpolar Current and into the Polar Frontal Zone was studied repeatedly during the austral spring. The centric diatom Corethron criophilum was found at most stations in variable numbers, but in the Polar Frontal Zone I encountered a large bloom undergoing a mass sexual phase. This event apparently triggered downward transport of empty diatom cell walls in numbers that suggest the phenomenon is significant for the vertical silica flux and the formation of monospecific layers of this important diatom species in Southern Ocean sediments. Comparison of the cell‐wall dimensions of such a monospecific layer with those in the plankton in the sexual phase reveals a characteristic signature that may indicate the provenance of these layers. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Weddell Sea Wiley Online Library Limnology and Oceanography 40 1 200 204 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
A longitudinal transect in the Atlantic sector of the Southern Ocean extending from the ice‐covered Weddell Sea across the Antarctic Circumpolar Current and into the Polar Frontal Zone was studied repeatedly during the austral spring. The centric diatom Corethron criophilum was found at most stations in variable numbers, but in the Polar Frontal Zone I encountered a large bloom undergoing a mass sexual phase. This event apparently triggered downward transport of empty diatom cell walls in numbers that suggest the phenomenon is significant for the vertical silica flux and the formation of monospecific layers of this important diatom species in Southern Ocean sediments. Comparison of the cell‐wall dimensions of such a monospecific layer with those in the plankton in the sexual phase reveals a characteristic signature that may indicate the provenance of these layers. |
format |
Article in Journal/Newspaper |
author |
Crawford, Richard M. |
spellingShingle |
Crawford, Richard M. The role of sex in the sedimentation of a marine diatom bloom |
author_facet |
Crawford, Richard M. |
author_sort |
Crawford, Richard M. |
title |
The role of sex in the sedimentation of a marine diatom bloom |
title_short |
The role of sex in the sedimentation of a marine diatom bloom |
title_full |
The role of sex in the sedimentation of a marine diatom bloom |
title_fullStr |
The role of sex in the sedimentation of a marine diatom bloom |
title_full_unstemmed |
The role of sex in the sedimentation of a marine diatom bloom |
title_sort |
role of sex in the sedimentation of a marine diatom bloom |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.4319/lo.1995.40.1.0200 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1995.40.1.0200 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1995.40.1.0200 |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_source |
Limnology and Oceanography volume 40, issue 1, page 200-204 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.1995.40.1.0200 |
container_title |
Limnology and Oceanography |
container_volume |
40 |
container_issue |
1 |
container_start_page |
200 |
op_container_end_page |
204 |
_version_ |
1799469324752125952 |