Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia
The Arctic Ocean in general and the Barents Sea specifically, are highly affected by the human induced carbon dioxide (CO2) emissions and increasing temperatures. Atlantification, caused by an increase in warm Atlantic Water inflow, and polar amplification, caused by a higher impact of the increasin...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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UiT Norges arktiske universitet
2023
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Online Access: | https://hdl.handle.net/10037/31821 |
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ftunivtroemsoe:oai:munin.uit.no:10037/31821 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 DOKTOR-004 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 DOKTOR-004 Anglada-Ortiz, Griselda Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 DOKTOR-004 |
description |
The Arctic Ocean in general and the Barents Sea specifically, are highly affected by the human induced carbon dioxide (CO2) emissions and increasing temperatures. Atlantification, caused by an increase in warm Atlantic Water inflow, and polar amplification, caused by a higher impact of the increasing temperatures at high latitudes, have already been observed. Moreover, the Barents Sea has been described as a hotspot for ocean acidification. Ocean acidification is the decrease of pH, calcium carbonate saturation state, and carbonate ion concentration due to an increase in CO2 uptake from the atmosphere by the ocean. This alteration of the carbonate chemistry of the water affects the marine biota, especially planktonic marine calcifiers. They are organisms living in the water column with a shell made of calcium carbonate (CaCO3). They contribute significantly to the carbon cycle by exporting mainly CaCO3 from the surface water to the seabed when they die. The main goal of this thesis is to study the distribution of marine calcifiers (planktonic foraminifers and shelled pteropods) in the Barents Sea and the adjacent Arctic Basin. We have (1) investigated their distribution patterns and contribution to carbon dynamics in the north Svalbard margin and in a seasonal basin in the northern Barents Sea; and (2) reconstructed the foraminiferal production and preservation patterns from the late Holocene in sediment cores from the northern and southern Barents Sea. The results from this thesis show that pteropods are important contributors to the carbon dynamics in all seasons in the northern Barents Sea and northern Svalbard margin. Due to the higher sensitivity of their shells compared to foraminifers, they are more likely to be affected by ocean acidification. Moreover, the abundance of foraminifers in the sediment suggests higher productivity in the southern than in the northern Barents Sea. The almost zero abundances observed in the northern Barents Sea core, combined with the seasonality of marine calcifiers, the ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Anglada-Ortiz, Griselda |
author_facet |
Anglada-Ortiz, Griselda |
author_sort |
Anglada-Ortiz, Griselda |
title |
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
title_short |
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
title_full |
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
title_fullStr |
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
title_full_unstemmed |
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
title_sort |
planktonic foraminifers and shelled pteropods in the barents sea: seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia |
publisher |
UiT Norges arktiske universitet |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/31821 |
geographic |
Arctic Arctic Ocean Barents Sea Svalbard |
geographic_facet |
Arctic Arctic Ocean Barents Sea Svalbard |
genre |
Arctic Arctic Basin Arctic Arctic Ocean Barents Sea Foraminifera* Ocean acidification Svalbard Svalbard margin |
genre_facet |
Arctic Arctic Basin Arctic Arctic Ocean Barents Sea Foraminifera* Ocean acidification Svalbard Svalbard margin |
op_relation |
Paper I: Anglada-Ortiz, G., Zamelczyk, K., Meilland, J., Ziveri, P., Chierici, M., Fransson, A. & Rasmussen, T.L. (2021). Planktic Foraminiferal and Pteropod Contributions to Carbon Dynamics in the Arctic Ocean (North Svalbard Margin). Frontiers in Marine Science, 8 , 661158. Also available in Munin at https://hdl.handle.net/10037/21392 . Paper II: Anglada-Ortiz, G., Meilland, J., Ziveri, P., Chierici, M., Fransson, A., Jones, E. & Rasmussen, T.L. (2023). Seasonality of marine calcifiers in the northern Barents Sea: Spatiotemporal distribution of planktonic foraminifers and shelled pteropods and their contribution to carbon dynamics. Progress in Oceanography, 218 , 103121. Also available at https://doi.org/10.1016/j.pocean.2023.103121 . Paper III: Anglada-Ortiz, G., Rasmussen, T.L., Chierici, M., Fransson, A., Ziveri, P., Zamelczyk, K., Meilland, J. & Garcia-Orellana, J. Reconstruction of changes in environments and productivity based on planktonic foraminiferal faunas in the northern and southern Barents Sea during the last three millennia. (Submitted manuscript). 978-82-8236-554-3 (printed version) 978-82-8236-555-0 (electronic/pdf version) https://hdl.handle.net/10037/31821 |
op_rights |
embargoedAccess Copyright 2023 The Author(s) |
_version_ |
1785559084039143424 |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/31821 2023-12-17T10:23:36+01:00 Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia Anglada-Ortiz, Griselda 2023-12-06 https://hdl.handle.net/10037/31821 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway Paper I: Anglada-Ortiz, G., Zamelczyk, K., Meilland, J., Ziveri, P., Chierici, M., Fransson, A. & Rasmussen, T.L. (2021). Planktic Foraminiferal and Pteropod Contributions to Carbon Dynamics in the Arctic Ocean (North Svalbard Margin). Frontiers in Marine Science, 8 , 661158. Also available in Munin at https://hdl.handle.net/10037/21392 . Paper II: Anglada-Ortiz, G., Meilland, J., Ziveri, P., Chierici, M., Fransson, A., Jones, E. & Rasmussen, T.L. (2023). Seasonality of marine calcifiers in the northern Barents Sea: Spatiotemporal distribution of planktonic foraminifers and shelled pteropods and their contribution to carbon dynamics. Progress in Oceanography, 218 , 103121. Also available at https://doi.org/10.1016/j.pocean.2023.103121 . Paper III: Anglada-Ortiz, G., Rasmussen, T.L., Chierici, M., Fransson, A., Ziveri, P., Zamelczyk, K., Meilland, J. & Garcia-Orellana, J. Reconstruction of changes in environments and productivity based on planktonic foraminiferal faunas in the northern and southern Barents Sea during the last three millennia. (Submitted manuscript). 978-82-8236-554-3 (printed version) 978-82-8236-555-0 (electronic/pdf version) https://hdl.handle.net/10037/31821 embargoedAccess Copyright 2023 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 DOKTOR-004 Doctoral thesis Doktorgradsavhandling 2023 ftunivtroemsoe 2023-11-23T00:08:06Z The Arctic Ocean in general and the Barents Sea specifically, are highly affected by the human induced carbon dioxide (CO2) emissions and increasing temperatures. Atlantification, caused by an increase in warm Atlantic Water inflow, and polar amplification, caused by a higher impact of the increasing temperatures at high latitudes, have already been observed. Moreover, the Barents Sea has been described as a hotspot for ocean acidification. Ocean acidification is the decrease of pH, calcium carbonate saturation state, and carbonate ion concentration due to an increase in CO2 uptake from the atmosphere by the ocean. This alteration of the carbonate chemistry of the water affects the marine biota, especially planktonic marine calcifiers. They are organisms living in the water column with a shell made of calcium carbonate (CaCO3). They contribute significantly to the carbon cycle by exporting mainly CaCO3 from the surface water to the seabed when they die. The main goal of this thesis is to study the distribution of marine calcifiers (planktonic foraminifers and shelled pteropods) in the Barents Sea and the adjacent Arctic Basin. We have (1) investigated their distribution patterns and contribution to carbon dynamics in the north Svalbard margin and in a seasonal basin in the northern Barents Sea; and (2) reconstructed the foraminiferal production and preservation patterns from the late Holocene in sediment cores from the northern and southern Barents Sea. The results from this thesis show that pteropods are important contributors to the carbon dynamics in all seasons in the northern Barents Sea and northern Svalbard margin. Due to the higher sensitivity of their shells compared to foraminifers, they are more likely to be affected by ocean acidification. Moreover, the abundance of foraminifers in the sediment suggests higher productivity in the southern than in the northern Barents Sea. The almost zero abundances observed in the northern Barents Sea core, combined with the seasonality of marine calcifiers, the ... Doctoral or Postdoctoral Thesis Arctic Arctic Basin Arctic Arctic Ocean Barents Sea Foraminifera* Ocean acidification Svalbard Svalbard margin University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Barents Sea Svalbard |