Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities
During the European Polarstern Study (EPOS 1988/1989) in the Weddell and Scotia Seas, five series of metal enrichment experiments were carried out with natural plankton communities under ultraclean conditions. Despite a clear stimulation of growth by the addition of Fe, control bottles (no additions...
Published in: | Limnology and Oceanography |
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1991
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Online Access: | https://hdl.handle.net/11370/58c3be07-5e06-471f-a538-74f047b84b8c https://research.rug.nl/en/publications/58c3be07-5e06-471f-a538-74f047b84b8c https://doi.org/10.4319/lo.1991.36.8.1865 https://pure.rug.nl/ws/files/15635931/1991LimnolOceanogrBuma.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/58c3be07-5e06-471f-a538-74f047b84b8c 2024-06-02T07:56:53+00:00 Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities Buma, Anita de Baar, Henricus Nolting, Rob F van Bennekom, Aleido J 1991 application/pdf https://hdl.handle.net/11370/58c3be07-5e06-471f-a538-74f047b84b8c https://research.rug.nl/en/publications/58c3be07-5e06-471f-a538-74f047b84b8c https://doi.org/10.4319/lo.1991.36.8.1865 https://pure.rug.nl/ws/files/15635931/1991LimnolOceanogrBuma.pdf eng eng https://research.rug.nl/en/publications/58c3be07-5e06-471f-a538-74f047b84b8c info:eu-repo/semantics/openAccess Buma , A , de Baar , H , Nolting , R F & van Bennekom , A J 1991 , ' Metal enrichment experiments in the Weddell-Scotia Seas : Effects of iron and manganese on various plankton communities ' , Limnology and Oceanography , vol. 36 , no. 8 , pp. 1865-1878 . https://doi.org/10.4319/lo.1991.36.8.1865 article 1991 ftunigroningenpu https://doi.org/10.4319/lo.1991.36.8.1865 2024-05-07T19:19:41Z During the European Polarstern Study (EPOS 1988/1989) in the Weddell and Scotia Seas, five series of metal enrichment experiments were carried out with natural plankton communities under ultraclean conditions. Despite a clear stimulation of growth by the addition of Fe, control bottles (no additions) also showed rapid buildup of Chl a and complete utilization of a major nutrient within 2 weeks, indicating nonlimiting ambient Fe levels. Effects of Mn additions were less pronounced or absent, whereas extra additions of Zn and Cu in one experiment showed little or no effect. The species composition of the plankton community, monitored by HPLC pigment analysis and microscopic observations, changed in favor of diatoms when Fe was added. The addition of Fe also caused an increase in microzooplankton densities and concentrations of pigment breakdown products. However, metal-mediated shifts in the plankton community were minor compared to major changes resulting from incubation. Changes were most pronounced in experiments where microzooplankton was strongly developed, presumably as a result of excluding mesozooplankton from the bottles. Fe had an impact on plankton growth and species composition, but other factors seem to be responsible for keeping phytoplankton productivity far from its potential in these Antarctic waters. Article in Journal/Newspaper Antarc* Antarctic University of Groningen research database Antarctic Weddell Limnology and Oceanography 36 8 1865 1878 |
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Open Polar |
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University of Groningen research database |
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ftunigroningenpu |
language |
English |
description |
During the European Polarstern Study (EPOS 1988/1989) in the Weddell and Scotia Seas, five series of metal enrichment experiments were carried out with natural plankton communities under ultraclean conditions. Despite a clear stimulation of growth by the addition of Fe, control bottles (no additions) also showed rapid buildup of Chl a and complete utilization of a major nutrient within 2 weeks, indicating nonlimiting ambient Fe levels. Effects of Mn additions were less pronounced or absent, whereas extra additions of Zn and Cu in one experiment showed little or no effect. The species composition of the plankton community, monitored by HPLC pigment analysis and microscopic observations, changed in favor of diatoms when Fe was added. The addition of Fe also caused an increase in microzooplankton densities and concentrations of pigment breakdown products. However, metal-mediated shifts in the plankton community were minor compared to major changes resulting from incubation. Changes were most pronounced in experiments where microzooplankton was strongly developed, presumably as a result of excluding mesozooplankton from the bottles. Fe had an impact on plankton growth and species composition, but other factors seem to be responsible for keeping phytoplankton productivity far from its potential in these Antarctic waters. |
format |
Article in Journal/Newspaper |
author |
Buma, Anita de Baar, Henricus Nolting, Rob F van Bennekom, Aleido J |
spellingShingle |
Buma, Anita de Baar, Henricus Nolting, Rob F van Bennekom, Aleido J Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
author_facet |
Buma, Anita de Baar, Henricus Nolting, Rob F van Bennekom, Aleido J |
author_sort |
Buma, Anita |
title |
Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
title_short |
Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
title_full |
Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
title_fullStr |
Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
title_full_unstemmed |
Metal enrichment experiments in the Weddell-Scotia Seas:Effects of iron and manganese on various plankton communities |
title_sort |
metal enrichment experiments in the weddell-scotia seas:effects of iron and manganese on various plankton communities |
publishDate |
1991 |
url |
https://hdl.handle.net/11370/58c3be07-5e06-471f-a538-74f047b84b8c https://research.rug.nl/en/publications/58c3be07-5e06-471f-a538-74f047b84b8c https://doi.org/10.4319/lo.1991.36.8.1865 https://pure.rug.nl/ws/files/15635931/1991LimnolOceanogrBuma.pdf |
geographic |
Antarctic Weddell |
geographic_facet |
Antarctic Weddell |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Buma , A , de Baar , H , Nolting , R F & van Bennekom , A J 1991 , ' Metal enrichment experiments in the Weddell-Scotia Seas : Effects of iron and manganese on various plankton communities ' , Limnology and Oceanography , vol. 36 , no. 8 , pp. 1865-1878 . https://doi.org/10.4319/lo.1991.36.8.1865 |
op_relation |
https://research.rug.nl/en/publications/58c3be07-5e06-471f-a538-74f047b84b8c |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.4319/lo.1991.36.8.1865 |
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Limnology and Oceanography |
container_volume |
36 |
container_issue |
8 |
container_start_page |
1865 |
op_container_end_page |
1878 |
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1800736580400316416 |