Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry
Planktonic calcifiers, the foraminiferal species Neogloboquadrina pachyderma and Turborotalita quinqueloba, and the thecosome pteropod Limacina helicina from plankton tows and surface sediments from the northern Barents Sea were studied to assess how shell density varies with depth habitat and ontog...
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Online Access: | https://hdl.handle.net/11250/2753822 https://doi.org/10.1371/journal.pone.0249178 |
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ftimr:oai:imr.brage.unit.no:11250/2753822 2023-05-15T15:38:37+02:00 Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry Ofstad, Siri Zamelczyk, Katarzyna Kimoto, Katsunori Chierici, Melissa Fransson, Agneta Rasmussen, Tine Lander 2021 application/pdf https://hdl.handle.net/11250/2753822 https://doi.org/10.1371/journal.pone.0249178 eng eng Norges forskningsråd: 223259 PLOS ONE. 2021, 16 . urn:issn:1932-6203 https://hdl.handle.net/11250/2753822 https://doi.org/10.1371/journal.pone.0249178 cristin:1907524 24 16 PLOS ONE Peer reviewed Journal article 2021 ftimr https://doi.org/10.1371/journal.pone.0249178 2021-09-23T20:15:53Z Planktonic calcifiers, the foraminiferal species Neogloboquadrina pachyderma and Turborotalita quinqueloba, and the thecosome pteropod Limacina helicina from plankton tows and surface sediments from the northern Barents Sea were studied to assess how shell density varies with depth habitat and ontogenetic processes. The shells were measured using X-ray microcomputed tomography (XMCT) scanning and compared to the physical and chemical properties of the water column including the carbonate chemistry and calcium carbonate saturation of calcite and aragonite. Both living L. helicina and N. pachyderma increased in shell density from the surface to 300 m water depth. Turborotalita quinqueloba increased in shell density to 150–200 m water depth. Deeper than 150 m, T. quinqueloba experienced a loss of density due to internal dissolution, possibly related to gametogenesis. The shell density of recently settled (dead) specimens of planktonic foraminifera from surface sediment samples was compared to the living fauna and showed a large range of dissolution states. This dissolution was not apparent from shell-surface texture, especially for N. pachyderma, which tended to be both thicker and denser than T. quinqueloba. Dissolution lowered the shell density while the thickness of the shell remained intact. Limacina helicina also increase in shell size with water depth and thicken the shell apex with growth. This study demonstrates that the living fauna in this specific area from the Barents Sea did not suffer from dissolution effects. Dissolution occurred after death and after settling on the sea floor. The study also shows that biomonitoring is important for the understanding of the natural variability in shell density of calcifying zooplankton. publishedVersion Article in Journal/Newspaper Barents Sea Limacina helicina Neogloboquadrina pachyderma Planktonic foraminifera Institute for Marine Research: Brage IMR Barents Sea PLOS ONE 16 4 e0249178 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
Planktonic calcifiers, the foraminiferal species Neogloboquadrina pachyderma and Turborotalita quinqueloba, and the thecosome pteropod Limacina helicina from plankton tows and surface sediments from the northern Barents Sea were studied to assess how shell density varies with depth habitat and ontogenetic processes. The shells were measured using X-ray microcomputed tomography (XMCT) scanning and compared to the physical and chemical properties of the water column including the carbonate chemistry and calcium carbonate saturation of calcite and aragonite. Both living L. helicina and N. pachyderma increased in shell density from the surface to 300 m water depth. Turborotalita quinqueloba increased in shell density to 150–200 m water depth. Deeper than 150 m, T. quinqueloba experienced a loss of density due to internal dissolution, possibly related to gametogenesis. The shell density of recently settled (dead) specimens of planktonic foraminifera from surface sediment samples was compared to the living fauna and showed a large range of dissolution states. This dissolution was not apparent from shell-surface texture, especially for N. pachyderma, which tended to be both thicker and denser than T. quinqueloba. Dissolution lowered the shell density while the thickness of the shell remained intact. Limacina helicina also increase in shell size with water depth and thicken the shell apex with growth. This study demonstrates that the living fauna in this specific area from the Barents Sea did not suffer from dissolution effects. Dissolution occurred after death and after settling on the sea floor. The study also shows that biomonitoring is important for the understanding of the natural variability in shell density of calcifying zooplankton. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Ofstad, Siri Zamelczyk, Katarzyna Kimoto, Katsunori Chierici, Melissa Fransson, Agneta Rasmussen, Tine Lander |
spellingShingle |
Ofstad, Siri Zamelczyk, Katarzyna Kimoto, Katsunori Chierici, Melissa Fransson, Agneta Rasmussen, Tine Lander Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
author_facet |
Ofstad, Siri Zamelczyk, Katarzyna Kimoto, Katsunori Chierici, Melissa Fransson, Agneta Rasmussen, Tine Lander |
author_sort |
Ofstad, Siri |
title |
Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
title_short |
Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
title_full |
Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
title_fullStr |
Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
title_full_unstemmed |
Shell density of planktonic foraminifera and pteropod species Limacina helicina in the Barents Sea: Relation to ontogeny and water chemistry |
title_sort |
shell density of planktonic foraminifera and pteropod species limacina helicina in the barents sea: relation to ontogeny and water chemistry |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2753822 https://doi.org/10.1371/journal.pone.0249178 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Limacina helicina Neogloboquadrina pachyderma Planktonic foraminifera |
genre_facet |
Barents Sea Limacina helicina Neogloboquadrina pachyderma Planktonic foraminifera |
op_source |
24 16 PLOS ONE |
op_relation |
Norges forskningsråd: 223259 PLOS ONE. 2021, 16 . urn:issn:1932-6203 https://hdl.handle.net/11250/2753822 https://doi.org/10.1371/journal.pone.0249178 cristin:1907524 |
op_doi |
https://doi.org/10.1371/journal.pone.0249178 |
container_title |
PLOS ONE |
container_volume |
16 |
container_issue |
4 |
container_start_page |
e0249178 |
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1766369768021950464 |