Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica
We investigated the composition of diatom communities in annual fast ice and their variations over time during the 1999 austral spring in Terra Nova Bay (Ross Sea, Antarctica). Diatoms varied along the ice core in both cell abundance and species composition, with a minimum in the lower layer and a p...
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ftuncampaniairis:oai:iris.unicampania.it:11591/372418 2024-04-14T08:03:16+00:00 Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi Sarno, Diana Zingone, Adriana DE STEFANO, Mario Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi DE STEFANO, Mario Sarno, Diana Zingone, Adriana 2017 http://hdl.handle.net/11591/372418 https://doi.org/10.1016/j.jmarsys.2016.06.007 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000391074300003 volume:166 firstpage:26 lastpage:36 numberofpages:11 journal:JOURNAL OF MARINE SYSTEMS http://hdl.handle.net/11591/372418 doi:10.1016/j.jmarsys.2016.06.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84979701284 www.elsevier.com/inca/publications/store/5/0/3/3/4/4 Antarctica Diatom Ross Sea Sea ice info:eu-repo/semantics/article 2017 ftuncampaniairis https://doi.org/10.1016/j.jmarsys.2016.06.007 2024-03-21T16:09:38Z We investigated the composition of diatom communities in annual fast ice and their variations over time during the 1999 austral spring in Terra Nova Bay (Ross Sea, Antarctica). Diatoms varied along the ice core in both cell abundance and species composition, with a minimum in the lower layer and a peak in the platelet ice. Planktonic species constituted in total about 98% of the diatom assemblage in the surface layers of the ice core down to the thickness of 220 cm. In the bottom ice and the underlying platelet-ice layer, the contribution of planktonic diatoms was lower (60% and 65%, respectively) at the beginning of the sampling period, and then decreased further to reach 30% in the bottom ice, where a remarkable biomass increase over time was caused by in situ growth and accumulation of benthic species. By contrast in the platelet-ice layer only small changes were recorded in the composition of the diatom assemblage, which was mainly constituted by the bloom of Fragilariopsis nana. The benthic species are generally not found in the water column, while species in the platelet-ice layer presumably constitute the seed for the initial plankton bloom during the ice-free periods in Terra Nova Bay. Article in Journal/Newspaper Antarc* Antarctica ice core Ross Sea Sea ice Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: Austral Ross Sea Terra Nova Bay Journal of Marine Systems 166 26 36 |
institution |
Open Polar |
collection |
Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: |
op_collection_id |
ftuncampaniairis |
language |
English |
topic |
Antarctica Diatom Ross Sea Sea ice |
spellingShingle |
Antarctica Diatom Ross Sea Sea ice Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi Sarno, Diana Zingone, Adriana DE STEFANO, Mario Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
topic_facet |
Antarctica Diatom Ross Sea Sea ice |
description |
We investigated the composition of diatom communities in annual fast ice and their variations over time during the 1999 austral spring in Terra Nova Bay (Ross Sea, Antarctica). Diatoms varied along the ice core in both cell abundance and species composition, with a minimum in the lower layer and a peak in the platelet ice. Planktonic species constituted in total about 98% of the diatom assemblage in the surface layers of the ice core down to the thickness of 220 cm. In the bottom ice and the underlying platelet-ice layer, the contribution of planktonic diatoms was lower (60% and 65%, respectively) at the beginning of the sampling period, and then decreased further to reach 30% in the bottom ice, where a remarkable biomass increase over time was caused by in situ growth and accumulation of benthic species. By contrast in the platelet-ice layer only small changes were recorded in the composition of the diatom assemblage, which was mainly constituted by the bloom of Fragilariopsis nana. The benthic species are generally not found in the water column, while species in the platelet-ice layer presumably constitute the seed for the initial plankton bloom during the ice-free periods in Terra Nova Bay. |
author2 |
Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi DE STEFANO, Mario Sarno, Diana Zingone, Adriana |
format |
Article in Journal/Newspaper |
author |
Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi Sarno, Diana Zingone, Adriana DE STEFANO, Mario |
author_facet |
Saggiomo, Maria Poulin, Michel Mangoni, Olga Lazzara, Luigi Sarno, Diana Zingone, Adriana DE STEFANO, Mario |
author_sort |
Saggiomo, Maria |
title |
Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
title_short |
Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
title_full |
Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
title_fullStr |
Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
title_full_unstemmed |
Spring-time dynamics of diatom communities in landfast and underlying platelet ice in Terra Nova Bay, Ross Sea, Antarctica |
title_sort |
spring-time dynamics of diatom communities in landfast and underlying platelet ice in terra nova bay, ross sea, antarctica |
publishDate |
2017 |
url |
http://hdl.handle.net/11591/372418 https://doi.org/10.1016/j.jmarsys.2016.06.007 |
geographic |
Austral Ross Sea Terra Nova Bay |
geographic_facet |
Austral Ross Sea Terra Nova Bay |
genre |
Antarc* Antarctica ice core Ross Sea Sea ice |
genre_facet |
Antarc* Antarctica ice core Ross Sea Sea ice |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000391074300003 volume:166 firstpage:26 lastpage:36 numberofpages:11 journal:JOURNAL OF MARINE SYSTEMS http://hdl.handle.net/11591/372418 doi:10.1016/j.jmarsys.2016.06.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84979701284 www.elsevier.com/inca/publications/store/5/0/3/3/4/4 |
op_doi |
https://doi.org/10.1016/j.jmarsys.2016.06.007 |
container_title |
Journal of Marine Systems |
container_volume |
166 |
container_start_page |
26 |
op_container_end_page |
36 |
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1796299523518103552 |