Articles | Volume 18, issue 19
https://doi.org/10.5194/bg-18-5465-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5465-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Oct 2021
Research article |
| 08 Oct 2021
| 08 Oct 2021
Abundances and morphotypes of the coccolithophore Emiliania huxleyi in southern Patagonia compared to neighbouring oceans and Northern Hemisphere fjords
Francisco Díaz-Rosas
Facultad de Ciencias Biológicas, Departamento de Ecología,
Pontificia Universidad Católica de Chile, Santiago, Chile
Instituto Milenio de Oceanografía de Chile, Concepción,
Chile
Catharina Alves-de-Souza
Algal Resources Collection, MARBIONC, Center for Marine Science,
University of North Carolina Wilmington, Wilmington, USA
Emilio Alarcón
Centro de Investigación en Ecosistemas de la Patagonia,
Coyhaique, Chile
Centro de Investigación Dinámica de Ecosistemas Marinos de
Altas Latitudes, Punta Arenas, Chile
Eduardo Menschel
Centro de Investigación en Ecosistemas de la Patagonia,
Coyhaique, Chile
Centro de Investigación Dinámica de Ecosistemas Marinos de
Altas Latitudes, Punta Arenas, Chile
Humberto E. González
Centro de Investigación Dinámica de Ecosistemas Marinos de
Altas Latitudes, Punta Arenas, Chile
Instituto de Ciencias Marinas y Limnológicas, Universidad
Austral de Chile, Valdivia, Chile
Rodrigo Torres
Centro de Investigación en Ecosistemas de la Patagonia,
Coyhaique, Chile
Centro de Investigación Dinámica de Ecosistemas Marinos de
Altas Latitudes, Punta Arenas, Chile
Peter von Dassow
CORRESPONDING AUTHOR
Facultad de Ciencias Biológicas, Departamento de Ecología,
Pontificia Universidad Católica de Chile, Santiago, Chile
Instituto Milenio de Oceanografía de Chile, Concepción,
Chile
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Francisco Javier Díaz-Rosas, Cristian Antonio Vargas, and Peter von Dassow
EGUsphere, https://doi.org/10.5194/egusphere-2024-3463, https://doi.org/10.5194/egusphere-2024-3463, 2024
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We studied Particulate Inorganic Carbon (PIC) and coccolithophores in low-oxygen, low-pH waters off the Southeast Pacific margin. We estimated how much PIC is produced by coccolithophores, which supports carbon transport to ocean depths. Results show coccolithophores can thrive in these zones, though their role in carbon export may lessen. This work advances understanding of coccolithophores’ role in carbon cycling as ocean acidification changes marine chemistry.
Francisco Javier Díaz-Rosas, Cristian Antonio Vargas, and Peter von Dassow
EGUsphere, https://doi.org/10.5194/egusphere-2024-3463, https://doi.org/10.5194/egusphere-2024-3463, 2024
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We studied Particulate Inorganic Carbon (PIC) and coccolithophores in low-oxygen, low-pH waters off the Southeast Pacific margin. We estimated how much PIC is produced by coccolithophores, which supports carbon transport to ocean depths. Results show coccolithophores can thrive in these zones, though their role in carbon export may lessen. This work advances understanding of coccolithophores’ role in carbon cycling as ocean acidification changes marine chemistry.
Maximiliano J. Vergara-Jara, Mark J. Hopwood, Thomas J. Browning, Insa Rapp, Rodrigo Torres, Brian Reid, Eric P. Achterberg, and José Luis Iriarte
Ocean Sci., 17, 561–578, https://doi.org/10.5194/os-17-561-2021, https://doi.org/10.5194/os-17-561-2021, 2021
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Ash from the Calbuco 2015 eruption spread across northern Patagonia, the SE Pacific and the SW Atlantic. In the Pacific, a phytoplankton bloom corresponded closely to the volcanic ash plume, suggesting that ash fertilized this region of the ocean. No such fertilization was found in the Atlantic where nutrients plausibly supplied by ash were likely already in excess of phytoplankton demand. In Patagonia, the May bloom was more intense than usual, but the mechanistic link to ash was less clear.
Peter von Dassow, Francisco Díaz-Rosas, El Mahdi Bendif, Juan-Diego Gaitán-Espitia, Daniella Mella-Flores, Sebastian Rokitta, Uwe John, and Rodrigo Torres
Biogeosciences, 15, 1515–1534, https://doi.org/10.5194/bg-15-1515-2018, https://doi.org/10.5194/bg-15-1515-2018, 2018
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Coccolithophores are microalgae which produce much of the calcium carbonate in the ocean, important to making organic carbon sink to great depths, and they may be negatively affected by the decline in ocean pH as CO2 rises. Can these important microbes adapt? This study found that coccolithophores inhabiting waters naturally low in pH may have already reached the limit of their ability to adapt. This suggests that how the ocean's biota sequester carbon will be strongly affected in the future.
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Impact of metabolism and temperature on 2H ∕ 1H fractionation in lipids of the marine bacterium Shewanella piezotolerans WP3
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities
Potential contributions of nitrifiers and denitrifiers to nitrous oxide sources and sinks in China's estuarine and coastal areas
Aqueous system-level processes and prokaryote assemblages in the ferruginous and sulfate-rich bottom waters of a post-mining lake
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The water column of the Yamal tundra lakes as a microbial filter preventing methane emission
Bioerosion and fungal colonization of the invasive foraminiferan Amphistegina lobifera in a Mediterranean seagrass meadow
Effects of tidal influence on the structure and function of prokaryotic communities in the sediments of a pristine Brazilian mangrove
Deep maxima of phytoplankton biomass, primary production and bacterial production in the Mediterranean Sea
Haplo-diplontic life cycle expands coccolithophore niche
The composition of endolithic communities in gypcrete is determined by the specific microhabitat architecture
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Biogeosciences, 21, 4273–4283, https://doi.org/10.5194/bg-21-4273-2024, https://doi.org/10.5194/bg-21-4273-2024, 2024
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To understand microbial processes in deep sedimentary environments where the majority of Earth’s prokaryotes are found, we investigated the microbial communities in microbial natural-gas-bearing aquifers at temperatures of 38–81°C, situated above nonmicrobial oil-bearing sediments. Our results indicate that microbial carbon and sulfur cycling is driven by geothermal heating, showing previously overlooked geothermal-heat-driven geochemical and microbiological processes in the deep biosphere.
Taiki Katayama, Reo Ikawa, Masaru Koshigai, and Susumu Sakata
Biogeosciences, 20, 5199–5210, https://doi.org/10.5194/bg-20-5199-2023, https://doi.org/10.5194/bg-20-5199-2023, 2023
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Methane produced by microorganisms in subsurface environments may account for a large fraction of global natural gas reserves. To understand how microbial methane is produced during sediment burial history, we examined methane-bearing aquifers in which temperature and salinity increase with depth. Geochemical and microbiological analyses showed that microbial methane is produced at depth, where microbial activity is stimulated by the increased temperature, and subsequently migrates upwards.
Xin Chen, Weishu Zhao, Liang Dong, Huahua Jian, Lewen Liang, Jing Wang, and Fengping Wang
Biogeosciences, 20, 1491–1504, https://doi.org/10.5194/bg-20-1491-2023, https://doi.org/10.5194/bg-20-1491-2023, 2023
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Here, we studied the effects of metabolism and growth temperature on 2H/1H fractionation between fatty acids and growth water (εFA/water) by Shewanella piezotolerans WP3. Our results show that the εFA/water values display considerable variations for cultures grown on different substrates. Combined with metabolic model analysis, our results indicate that the central metabolic pathways exert a fundamental effect on the hydrogen isotope composition of lipids in heterotrophs.
Ruud Rijkers, Mark Dekker, Rien Aerts, and James T. Weedon
Biogeosciences, 20, 767–780, https://doi.org/10.5194/bg-20-767-2023, https://doi.org/10.5194/bg-20-767-2023, 2023
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Bacterial communities in the soils of the Arctic region decompose soil organic matter to CO2 from a large carbon pool. The amount of CO2 released is likely to increase under future climate conditions. Here, we study how temperature sensitive the growth of soil bacterial communties is for 12 sampling sites in the sub to high Arctic. We show that the optimal growth temperature varies between 23 and 34 °C and is influenced by the summer temperature.
Xiaofeng Dai, Mingming Chen, Xianhui Wan, Ehui Tan, Jialing Zeng, Nengwang Chen, Shuh-Ji Kao, and Yao Zhang
Biogeosciences, 19, 3757–3773, https://doi.org/10.5194/bg-19-3757-2022, https://doi.org/10.5194/bg-19-3757-2022, 2022
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This study revealed the distinct distribution patterns of six key microbial functional genes and transcripts related to N2O sources and sinks in four estuaries spanning the Chinese coastline, which were significantly constrained by nitrogen and oxygen concentrations, salinity, temperature, and pH. The community structure of the nosZ clade II was distinctly different from those in the soil and marine OMZs. Denitrification may principally control the N2O emissions patterns across the estuaries.
Daniel A. Petrash, Ingrid M. Steenbergen, Astolfo Valero, Travis B. Meador, Tomáš Pačes, and Christophe Thomazo
Biogeosciences, 19, 1723–1751, https://doi.org/10.5194/bg-19-1723-2022, https://doi.org/10.5194/bg-19-1723-2022, 2022
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We spectroscopically evaluated the gradients of dissolved C, N, S, Fe and Mn in a newly formed redox-stratified lake. The lake features an intermediate redox state between nitrogenous and euxinic conditions that encompasses vigorous open sulfur cycling fuelled by the reducible Fe and Mn stocks of the anoxic sediments. This results in substantial bottom water loads of dissolved iron and sulfate. Observations made in this ecosystem have relevance for deep-time paleoceanographic reconstructions.
Riccardo Rosselli, Maura Fiamma, Massimo Deligios, Gabriella Pintus, Grazia Pellizzaro, Annalisa Canu, Pierpaolo Duce, Andrea Squartini, Rosella Muresu, and Pietro Cappuccinelli
Biogeosciences, 18, 4351–4367, https://doi.org/10.5194/bg-18-4351-2021, https://doi.org/10.5194/bg-18-4351-2021, 2021
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The bacteria carried by winds over the island of Sardinia in the Mediterranean Sea were collected, and their identities were investigated by reading DNA sequences. The sampling period was the factor that most determined the airborne species composition as its role was stronger than that of dust-carrying storms and of the geographical position of the sampling station. The bacteria found when the sampling was performed in September had more species variety than those collected in May.
Alexander Savvichev, Igor Rusanov, Yury Dvornikov, Vitaly Kadnikov, Anna Kallistova, Elena Veslopolova, Antonina Chetverova, Marina Leibman, Pavel A. Sigalevich, Nikolay Pimenov, Nikolai Ravin, and Artem Khomutov
Biogeosciences, 18, 2791–2807, https://doi.org/10.5194/bg-18-2791-2021, https://doi.org/10.5194/bg-18-2791-2021, 2021
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Microbial processes of the methane cycle were studied in four lakes of the central part of the Yamal Peninsula in an area of continuous permafrost: two large, deep lakes and two small and shallow ones. It was found that only small, shallow lakes contributed significantly to the overall diffusive methane emissions from the water surface during the warm summer season. The water column of large, deep lakes on Yamal acted as a microbial filter preventing methane emissions into the atmosphere.
Martin Vohník
Biogeosciences, 18, 2777–2790, https://doi.org/10.5194/bg-18-2777-2021, https://doi.org/10.5194/bg-18-2777-2021, 2021
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Amphistegina lobifera (Foraminifera) has colonized the Mediterranean through the Suez Canal, often forming thick sediments altering the invaded environments. Little is known about postmortem fate of its shells, so I investigated their turnover in the rhizosphere of the dominant Mediterranean seagrass. Most were bioeroded, likely by cyanobacteria and algae but not fungi occurring in the seagrass roots. Bioerosion may counterbalance accumulation of A. lobifera shells in the seabed substrate.
Carolina Oliveira de Santana, Pieter Spealman, Vânia Maria Maciel Melo, David Gresham, Taíse Bomfim de Jesus, and Fabio Alexandre Chinalia
Biogeosciences, 18, 2259–2273, https://doi.org/10.5194/bg-18-2259-2021, https://doi.org/10.5194/bg-18-2259-2021, 2021
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This study highlights the influence of
tidal zonationon the prokaryotic sediment communities of a pristine mangrove forest. We observed that the variability in environmental factors between tidal zones results in differences in structure, diversity, and the potential function of prokaryotic populations. This suggests that further work is needed in determining the role tidal microhabitat biodiversity has in mangroves.
Emilio Marañón, France Van Wambeke, Julia Uitz, Emmanuel S. Boss, Céline Dimier, Julie Dinasquet, Anja Engel, Nils Haëntjens, María Pérez-Lorenzo, Vincent Taillandier, and Birthe Zäncker
Biogeosciences, 18, 1749–1767, https://doi.org/10.5194/bg-18-1749-2021, https://doi.org/10.5194/bg-18-1749-2021, 2021
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The concentration of chlorophyll is commonly used as an indicator of the abundance of photosynthetic plankton (phytoplankton) in lakes and oceans. Our study investigates why a deep chlorophyll maximum, located near the bottom of the upper, illuminated layer develops in the Mediterranean Sea. We find that the acclimation of cells to low light is the main mechanism involved and that this deep maximum represents also a maximum in the biomass and carbon fixation activity of phytoplankton.
Joost de Vries, Fanny Monteiro, Glen Wheeler, Alex Poulton, Jelena Godrijan, Federica Cerino, Elisa Malinverno, Gerald Langer, and Colin Brownlee
Biogeosciences, 18, 1161–1184, https://doi.org/10.5194/bg-18-1161-2021, https://doi.org/10.5194/bg-18-1161-2021, 2021
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Coccolithophores are important calcifying phytoplankton with an overlooked life cycle. We compile a global dataset of marine coccolithophore abundance to investigate the environmental characteristics of each life cycle phase. We find that both phases contribute to coccolithophore abundance and that their different environmental preference increases coccolithophore habitat. Accounting for the life cycle of coccolithophores is thus crucial for understanding their ecology and biogeochemical impact.
María Cristina Casero, Victoria Meslier, Jocelyne DiRuggiero, Antonio Quesada, Carmen Ascaso, Octavio Artieda, Tomasz Kowaluk, and Jacek Wierzchos
Biogeosciences, 18, 993–1007, https://doi.org/10.5194/bg-18-993-2021, https://doi.org/10.5194/bg-18-993-2021, 2021
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Endolithic microhabitats have been described as the last refuge for life in arid and hyper-arid deserts where life has to deal with harsh environmental conditions, such as those in the Atacama Desert. In this work, three different endolithic microhabitats occurring in gypcrete rocks of the Atacama Desert are characterized, using both microscopy and molecular techniques, to show if the architecture of each microhabitat has an influence on the microbial communities inhabiting each of them.
Jeffrey M. Dick, Miao Yu, and Jingqiang Tan
Biogeosciences, 17, 6145–6162, https://doi.org/10.5194/bg-17-6145-2020, https://doi.org/10.5194/bg-17-6145-2020, 2020
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Many natural environments differ in their range of salt concentration (salinity). We developed a metric for the number of water molecules in formation reactions of different proteins and found that it decreases between freshwater and marine systems and also in laboratory experiments with increasing salinity. These results demonstrate a new type of link between geochemical conditions and the chemical composition of microbial communities that can be useful for models of microbial adaptation.
Subhrangshu Mandal, Sabyasachi Bhattacharya, Chayan Roy, Moidu Jameela Rameez, Jagannath Sarkar, Tarunendu Mapder, Svetlana Fernandes, Aditya Peketi, Aninda Mazumdar, and Wriddhiman Ghosh
Biogeosciences, 17, 4611–4631, https://doi.org/10.5194/bg-17-4611-2020, https://doi.org/10.5194/bg-17-4611-2020, 2020
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Potential roles of polythionates as key sulfur cycle intermediates are less appreciated, apparently because, in most of the natural environments, they do not accumulate to easily detectable levels. Our exploration of the eastern Arabian Sea sediment horizons revealed microbe-mediated production and redox transformations of tetrathionate to be important modules of the in situ sulfur cycle, even as high biotic and abiotic reactivity of this polythionate keeps it hidden from geochemical detection.
Magdalena J. Mayr, Matthias Zimmermann, Jason Dey, Bernhard Wehrli, and Helmut Bürgmann
Biogeosciences, 17, 4247–4259, https://doi.org/10.5194/bg-17-4247-2020, https://doi.org/10.5194/bg-17-4247-2020, 2020
Massimiliano Molari, Felix Janssen, Tobias R. Vonnahme, Frank Wenzhöfer, and Antje Boetius
Biogeosciences, 17, 3203–3222, https://doi.org/10.5194/bg-17-3203-2020, https://doi.org/10.5194/bg-17-3203-2020, 2020
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Industrial-scale mining of deep-sea polymetallic nodules will remove nodules in large areas of the sea floor. We describe community composition of microbes associated with nodules of the Peru Basin. Our results show that nodules provide a unique ecological niche, playing an important role in shaping the diversity of the benthic deep-sea microbiome and potentially in element fluxes. We believe that our findings are highly relevant to expanding our knowledge of the impact associated with mining.
Jun Zhao, Yuanfeng Cai, and Zhongjun Jia
Biogeosciences, 17, 1451–1462, https://doi.org/10.5194/bg-17-1451-2020, https://doi.org/10.5194/bg-17-1451-2020, 2020
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We show that soil pH is a key factor in selecting distinct phylotypes of methanotrophs in paddy soils. Type II methanotrophs dominated the methane oxidation in low-pH soils, while type I methanotrophs were more active in high-pH soils. This pH-based niche differentiation of active methanotrophs appeared to be independent of nitrogen fertilization, but the inhibition of type II methanotrophic rate in low-pH soils by the fertilization might aggravate the emission of methane from paddy soils.
Edwin Sien Aun Sia, Zhuoyi Zhu, Jing Zhang, Wee Cheah, Shan Jiang, Faddrine Holt Jang, Aazani Mujahid, Fuh-Kwo Shiah, and Moritz Müller
Biogeosciences, 16, 4243–4260, https://doi.org/10.5194/bg-16-4243-2019, https://doi.org/10.5194/bg-16-4243-2019, 2019
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Microbial community composition and diversity in freshwater habitats are much less studied compared to marine and soil communities. This study presents the first assessment of microbial communities of the Rajang River, the longest river in Malaysia, expanding our knowledge of microbial ecology in tropical regions. Areas surrounded by oil palm plantations showed the lowest diversity and other signs of anthropogenic impacts included the presence of CFB groups as well as probable algal blooms.
Julia Mitzscherling, Fabian Horn, Maria Winterfeld, Linda Mahler, Jens Kallmeyer, Pier P. Overduin, Lutz Schirrmeister, Matthias Winkel, Mikhail N. Grigoriev, Dirk Wagner, and Susanne Liebner
Biogeosciences, 16, 3941–3958, https://doi.org/10.5194/bg-16-3941-2019, https://doi.org/10.5194/bg-16-3941-2019, 2019
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Permafrost temperatures increased substantially at a global scale, potentially altering microbial assemblages involved in carbon mobilization before permafrost thaws. We used Arctic Shelf submarine permafrost as a natural laboratory to investigate the microbial response to long-term permafrost warming. Our work shows that millennia after permafrost warming by > 10 °C, microbial community composition and population size reflect the paleoenvironment rather than a direct effect through warming.
Blanca Rincón-Tomás, Jan-Peter Duda, Luis Somoza, Francisco Javier González, Dominik Schneider, Teresa Medialdea, Esther Santofimia, Enrique López-Pamo, Pedro Madureira, Michael Hoppert, and Joachim Reitner
Biogeosciences, 16, 1607–1627, https://doi.org/10.5194/bg-16-1607-2019, https://doi.org/10.5194/bg-16-1607-2019, 2019
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Cold-water corals were found at active sites in Pompeia Province (Gulf of Cádiz). Since seeped fluids are harmful for the corals, we approached the environmental conditions that allow corals to colonize carbonates while seepage occurs. As a result, we propose that chemosynthetic microorganisms (i.e. sulfide-oxidizing bacteria and AOM-related microorganisms) play an important role in the colonization of the corals at these sites by feeding on the seeped fluids and avoiding coral damage.
Sylwia Śliwińska-Wilczewska, Agata Cieszyńska, Jakub Maculewicz, and Adam Latała
Biogeosciences, 15, 6257–6276, https://doi.org/10.5194/bg-15-6257-2018, https://doi.org/10.5194/bg-15-6257-2018, 2018
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The present study describes responses of picocyanobacteria (PCY) physiology to different environmental conditions. The cultures were grown under 64 combinations of temperature, irradiance in a photosynthetically active spectrum (PAR), and salinity. The results show that each strain of Baltic Synechococcus sp. behaves differently in respective environmental scenarios. The study develops the knowledge on bloom-forming PCY and reasons further research on the smallest size fraction of phytoplankton.
Jose Luis Otero-Ferrer, Pedro Cermeño, Antonio Bode, Bieito Fernández-Castro, Josep M. Gasol, Xosé Anxelu G. Morán, Emilio Marañon, Victor Moreira-Coello, Marta M. Varela, Marina Villamaña, and Beatriz Mouriño-Carballido
Biogeosciences, 15, 6199–6220, https://doi.org/10.5194/bg-15-6199-2018, https://doi.org/10.5194/bg-15-6199-2018, 2018
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The effect of inorganic nutrients on planktonic assemblages has been traditionally assessed by looking at concentrations rather than fluxes of nutrient supply. However, in near-steady-state systems such as subtropical gyres, nitrate concentrations are kept close to the detection limit due to phytoplankton uptake. Our results, based on direct measurements of nitrate diffusive fluxes, support the key role of nitrate supply in controlling the structure of marine picoplankton communities.
Jörn Wehking, Daniel A. Pickersgill, Robert M. Bowers, David Teschner, Ulrich Pöschl, Janine Fröhlich-Nowoisky, and Viviane R. Després
Biogeosciences, 15, 4205–4214, https://doi.org/10.5194/bg-15-4205-2018, https://doi.org/10.5194/bg-15-4205-2018, 2018
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Archaea as a third domain of life play an important role in soils and marine environments. Although archaea have been found in air as a part of the atmospheric bioaerosol, little is known about their atmospheric dynamics due to their low number and challenging analysis.
Here we present a DNA-based study of airborne archaea, show seasonal dynamics, and discuss anthropogenic influences on the diversity, composition, and abundances of airborne archaea.
Nicholas Bock, France Van Wambeke, Moïra Dion, and Solange Duhamel
Biogeosciences, 15, 3909–3925, https://doi.org/10.5194/bg-15-3909-2018, https://doi.org/10.5194/bg-15-3909-2018, 2018
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We report the distribution of major nano- and pico-plankton groups in the western tropical South Pacific. We found microbial community structure to be typical of highly stratified regions of the open ocean, with significant contributions to total biomass by picophytoeukaryotes, and N2 fixation playing a central role in regulating ecosystem processes. Our results also suggest a reduction in the importance of predation in regulating bacteria populations under nutrient-limited conditions.
Michelle Szyja, Burkhard Büdel, and Claudia Colesie
Biogeosciences, 15, 1919–1931, https://doi.org/10.5194/bg-15-1919-2018, https://doi.org/10.5194/bg-15-1919-2018, 2018
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Ongoing human impact transforms habitats into surfaces lacking higher vegetation. Here, biological soil crusts (BSCs) provide ecosystem services like soil creation and carbon uptake. To understand the functioning of these areas, we examined the physiological capability of early successional BSCs. We found features enabling BSCs to cope with varying climatic stresses. BSCs are important carbon fixers independent of the dominating organism. We provide baseline data for modeling carbon fluxes.
Petr Kotas, Hana Šantrůčková, Josef Elster, and Eva Kaštovská
Biogeosciences, 15, 1879–1894, https://doi.org/10.5194/bg-15-1879-2018, https://doi.org/10.5194/bg-15-1879-2018, 2018
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The soil microbial properties were investigated along altitudinal gradients in the Arctic. Systematic altitudinal shift in MCS resulting in high F / B ratios at the most elevated sites was observed. The changes in composition, size and activity of microbial communities were mainly controlled through the effect of vegetation on edaphic properties and by bedrock chemistry. The upward migration of vegetation due to global warming will likely diminish the spatial variability in microbial properties.
Tung-Yi Huang, Bing-Mu Hsu, Wei-Chun Chao, and Cheng-Wei Fan
Biogeosciences, 15, 1815–1826, https://doi.org/10.5194/bg-15-1815-2018, https://doi.org/10.5194/bg-15-1815-2018, 2018
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The n-alkane in litterfall and the microbial community in litter layer in different habitats of lowland subtropical rainforest were studied. We revealed that the plant vegetation of forest not only dominated the n-alkane input of habitats but also governed the diversity of microbial community of litter layer. In this study, we found that the habitat which had high n-alkane input induced a shift of relative abundance toward phylum of Actinobacteria and the growth of alkB gene contained bacteria.
Jennifer Caesar, Alexandra Tamm, Nina Ruckteschler, Anna Lena Leifke, and Bettina Weber
Biogeosciences, 15, 1415–1424, https://doi.org/10.5194/bg-15-1415-2018, https://doi.org/10.5194/bg-15-1415-2018, 2018
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In our study we analyzed the efficiency of different chlorophyll extraction solvents and investigated the effect of different preparatory steps to determine the optimal extraction method for biological soil crusts. Based on our results we confirm a DMSO-based chlorophyll extraction method without grinding pretreatment and suggest to insert an intermediate shaking step for complete chlorophyll extraction.
Zhiwei Xu, Guirui Yu, Xinyu Zhang, Nianpeng He, Qiufeng Wang, Shengzhong Wang, Xiaofeng Xu, Ruili Wang, and Ning Zhao
Biogeosciences, 15, 1217–1228, https://doi.org/10.5194/bg-15-1217-2018, https://doi.org/10.5194/bg-15-1217-2018, 2018
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Forest types with specific soil conditions supported the development of distinct soil microbial communities with variable functions. Our results indicate that the main controls on soil microbes and functions vary across forest ecosystems in different climatic zones. This information will add value to the modeling of microbial processes and will contribute to carbon cycling on a large scale.
Patrick Jung, Laura Briegel-Williams, Anika Simon, Anne Thyssen, and Burkhard Büdel
Biogeosciences, 15, 1149–1160, https://doi.org/10.5194/bg-15-1149-2018, https://doi.org/10.5194/bg-15-1149-2018, 2018
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Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to cyanobacteria. BSCs influence ecosystems services like soil erodibility and chemical cycles. In cold environments degradation rates are low and BSCs increase soil organic carbon through photosynthesis, whereby these soils are considered as CO2 sinks. This work provides a novel method to visualize BSCs with a focus on cyanobacteria and their contribution to soil organic carbon.
Rongliang Jia, Yun Zhao, Yanhong Gao, Rong Hui, Haotian Yang, Zenru Wang, and Yixuan Li
Biogeosciences, 15, 1161–1172, https://doi.org/10.5194/bg-15-1161-2018, https://doi.org/10.5194/bg-15-1161-2018, 2018
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Why can biocrust moss survive and flourish in these habitats when stressed simultaneously by drought and sand burial? A field experiment was conducted to assess the combined effects of the two stressors on Bryum argenteum within biocrust. The two stressors did not exacerbate the single negative effects; their mutually antagonistic effect on the physiological vigor of B. argenteum was found, and it provided an opportunity for it to overcome the two co-occurring stressors in arid sandy ecosystems.
Johanna Maltby, Lea Steinle, Carolin R. Löscher, Hermann W. Bange, Martin A. Fischer, Mark Schmidt, and Tina Treude
Biogeosciences, 15, 137–157, https://doi.org/10.5194/bg-15-137-2018, https://doi.org/10.5194/bg-15-137-2018, 2018
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The activity and environmental controls of methanogenesis (MG) within the sulfate-reducing zone (0–30 cm below the seafloor) were investigated in organic-rich sediments of the seasonally hypoxic Eckernförde Bay, SW Baltic Sea. MG activity was mostly linked to non-competitive substrates. The major controls identified were organic matter availability, C / N, temperature, and O2 in the water column, revealing higher rates in warm, stratified, hypoxic seasons compared to colder, oxygenated seasons.
Rebecca Elizabeth Cooper, Karin Eusterhues, Carl-Eric Wegner, Kai Uwe Totsche, and Kirsten Küsel
Biogeosciences, 14, 5171–5188, https://doi.org/10.5194/bg-14-5171-2017, https://doi.org/10.5194/bg-14-5171-2017, 2017
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In this study we show increasing organic matter (OM) content on ferrihydrite surfaces enhances Fe reduction by the model Fe reducer S. oneidensis and a microbial consortia extracted from peat. Similarities in reduction rates between S. oneidensis and the consortia suggest electron shuttling dominates in OM-rich soils. Community profile analyses showed enrichment of fermenters with pure ferrihydrite, whereas OM–mineral complexes favored enrichment of Fe-reducing Desulfobacteria and Pelosinus sp.
Yu-Te Lin, Zhongjun Jia, Dongmei Wang, and Chih-Yu Chiu
Biogeosciences, 14, 4879–4889, https://doi.org/10.5194/bg-14-4879-2017, https://doi.org/10.5194/bg-14-4879-2017, 2017
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We evaluated the bacterial composition and diversity of bamboo soils sampled at different elevations and incubated at different temperatures. Soil respiration was greater at higher elevation and temperature. Soil bacterial structure and diversity showed variable under different incubation times and temperatures. Increases in temperature increased soil respiration and consumption of soil soluble carbon and nitrogen, thus influencing the bacterial diversity and structure at different elevations.
Lichao Liu, Yubing Liu, Peng Zhang, Guang Song, Rong Hui, Zengru Wang, and Jin Wang
Biogeosciences, 14, 3801–3814, https://doi.org/10.5194/bg-14-3801-2017, https://doi.org/10.5194/bg-14-3801-2017, 2017
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We studied the development process of bacterial community structure of biological soil crusts (BSCs) along a revegetation chronosequence by Illumina MiSeq sequencing in the Tengger Desert. Our results indicated (1) a shift of bacterial composition related to their function in the crust development process; (2) bacterial diversity and richness consistent with the recovery phase of soil properties; and (3) bacteria as key contributors to the BSC succession process.
Sophie L. Nixon, Jon P. Telling, Jemma L. Wadham, and Charles S. Cockell
Biogeosciences, 14, 1445–1455, https://doi.org/10.5194/bg-14-1445-2017, https://doi.org/10.5194/bg-14-1445-2017, 2017
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Despite their permanently cold and dark characteristics, subglacial environments (glacier ice–sediment interface) are known to harbour active microbial communities. However, the role of microbial iron cycling in these environments is poorly understood. Here we show that subglacial sediments harbour active iron-reducing microorganisms, and they appear to be cold-adapted. These results may have important implications for global biogeochemical iron cycling and export to marine ecosystems.
Estelle Couradeau, Daniel Roush, Brandon Scott Guida, and Ferran Garcia-Pichel
Biogeosciences, 14, 311–324, https://doi.org/10.5194/bg-14-311-2017, https://doi.org/10.5194/bg-14-311-2017, 2017
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Endoliths are a prominent bioerosive component of intertidal marine habitats, traditionally thought to be formed by a few cyanobacteria, algae and fungi. Using molecular techniques, however, we found that endoliths from Mona Island, Puerto Rico, were of high diversity, well beyond that reported in traditional studies. We also found evidence for substrate specialization, in that closely related cyanobacteria seem to have diversified to specialize recurrently to excavate various mineral substrates
Yong Wang, Tie Gang Li, Meng Ying Wang, Qi Liang Lai, Jiang Tao Li, Zhao Ming Gao, Zong Ze Shao, and Pei-Yuan Qian
Biogeosciences, 13, 6405–6417, https://doi.org/10.5194/bg-13-6405-2016, https://doi.org/10.5194/bg-13-6405-2016, 2016
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Mild eruption of hydrothermal solutions on deep-sea benthic floor can produce anhydrite crystal layers, where microbes are trapped and preserved for a long period of time. These embedded original inhabitants will be biomarkers for the environment when the hydrothermal eruption occurred. This study discovered a thick anhydrite layer in a deep-sea brine pool in the Red Sea. Oil-degrading bacteria were revealed in the crystals with genomic and microscopic evidence.
Dina Spungin, Ulrike Pfreundt, Hugo Berthelot, Sophie Bonnet, Dina AlRoumi, Frank Natale, Wolfgang R. Hess, Kay D. Bidle, and Ilana Berman-Frank
Biogeosciences, 13, 4187–4203, https://doi.org/10.5194/bg-13-4187-2016, https://doi.org/10.5194/bg-13-4187-2016, 2016
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The marine cyanobacterium Trichodesmium spp. forms massive blooms important to carbon and nitrogen cycling in the oceans that often collapse abruptly. We investigated a Trichodesmium bloom in the lagoon waters of New Caledonia to specifically elucidate the cellular processes mediating the bloom decline. We demonstrate physiological, biochemical, and genetic evidence for nutrient and oxidative stress that induced a genetically controlled programmed cell death (PCD) pathway leading to bloom demise.
Lotta Purkamo, Malin Bomberg, Riikka Kietäväinen, Heikki Salavirta, Mari Nyyssönen, Maija Nuppunen-Puputti, Lasse Ahonen, Ilmo Kukkonen, and Merja Itävaara
Biogeosciences, 13, 3091–3108, https://doi.org/10.5194/bg-13-3091-2016, https://doi.org/10.5194/bg-13-3091-2016, 2016
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The microbial communities of up to 2.3 km depth of Precambrian crystalline bedrock fractures share features with serpenization-driven microbial communities in alkaline springs and subsurface aquifers. This study suggests that phylotypes belonging to Burkholderiales and Clostridia are possible "keystone microbial species" in Outokumpu deep biosphere. Many of the keystone species belong to the rare biosphere with low abundance but a wide range of carbon substrates and a capacity for H2 oxidation.
Thierry Jauffrais, Bruno Jesus, Edouard Metzger, Jean-Luc Mouget, Frans Jorissen, and Emmanuelle Geslin
Biogeosciences, 13, 2715–2726, https://doi.org/10.5194/bg-13-2715-2016, https://doi.org/10.5194/bg-13-2715-2016, 2016
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Some benthic foraminifera can incorporate chloroplasts from microalgae. We investigated chloroplast functionality of two benthic foraminifera (Haynesina germanica & Ammonia tepida) exposed to different light levels. Only H. germanica was capable of using the kleptoplasts, showing net oxygen production. Chloroplast functionality time was longer in darkness (2 weeks) than at high light (1 week). Kleptoplasts are unlikely to be completely functional, thus requiring continuous chloroplast resupply.
L. Zhou, Y. Tan, L. Huang, Z. Hu, and Z. Ke
Biogeosciences, 12, 6809–6822, https://doi.org/10.5194/bg-12-6809-2015, https://doi.org/10.5194/bg-12-6809-2015, 2015
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We observed that phytoplankton biomass and growth rate (μ), microzooplankton grazing rate (m), and coupling (correlation) between the μ and m significantly varied between the summer and winter, and microzooplankton selectively grazed more on the larger-sized phytoplankton, and a low grazing impact on phytoplankton (m/μ < 50%) in the SSCS. The salient seasonal variations in μ and m, and their coupling were closely related to environmental variables under the influence of the East Asian monsoon.
A. M. Womack, P. E. Artaxo, F. Y. Ishida, R. C. Mueller, S. R. Saleska, K. T. Wiedemann, B. J. M. Bohannan, and J. L. Green
Biogeosciences, 12, 6337–6349, https://doi.org/10.5194/bg-12-6337-2015, https://doi.org/10.5194/bg-12-6337-2015, 2015
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Fungi in the atmosphere can affect precipitation by nucleating the formation of clouds and ice. This process is important over the Amazon rainforest where precipitation is limited by the types and amount of airborne particles. We found that the total and metabolically active fungi communities were dominated by different taxonomic groups, and the active community unexpectedly contained many lichen fungi, which are effective at nucleating ice.
W. Y. Dong, X. Y. Zhang, X. Y. Liu, X. L. Fu, F. S. Chen, H. M. Wang, X. M. Sun, and X. F. Wen
Biogeosciences, 12, 5537–5546, https://doi.org/10.5194/bg-12-5537-2015, https://doi.org/10.5194/bg-12-5537-2015, 2015
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We examined how N and P addition influenced soil microbial community composition and enzyme activities in subtropical China. The results showed that C and N cycling enzymes were more sensitive to nutrient additions than P cycling enzymes and Gram-positive bacteria were most closely related to soil nutrient cycling enzymes. Combined additions of N and P fertilizer are recommended to promote soil fertility and microbial activity in this kind of plantation.
T. Bush, I. B. Butler, A. Free, and R. J. Allen
Biogeosciences, 12, 3713–3724, https://doi.org/10.5194/bg-12-3713-2015, https://doi.org/10.5194/bg-12-3713-2015, 2015
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Despite their global importance, redox reactions mediated by microorganisms are often crudely represented in biogeochemical models. We show that including the dynamics of microbial growth in such a model can cause sudden shifts between redox states in response to an environmental change. We identify the conditions required for these redox regime shifts, and predict that they are likely in the modern day sulfur and nitrogen cycles, and potentially the iron cycle in the ancient ocean.
P. K. Gao, G. Q. Li, H. M. Tian, Y. S. Wang, H. W. Sun, and T. Ma
Biogeosciences, 12, 3403–3414, https://doi.org/10.5194/bg-12-3403-2015, https://doi.org/10.5194/bg-12-3403-2015, 2015
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Microbial communities in injected water are expected to have a significant influence on those of reservoir strata in long-term water-flooding petroleum reservoirs. We thereby investigated the similarities and differences in microbial communities in water samples collected from the wellhead and downhole of injection wells, and from production wells in a homogeneous reservoir and a heterogeneous reservoir using high-throughput sequencing.
V. Marteinsson, A. Klonowski, E. Reynisson, P. Vannier, B. D. Sigurdsson, and M. Ólafsson
Biogeosciences, 12, 1191–1203, https://doi.org/10.5194/bg-12-1191-2015, https://doi.org/10.5194/bg-12-1191-2015, 2015
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Colonization of life on Surtsey has been observed systematically since the formation of the island. Microbial colonization and the influence of associate vegetation and birds on viable counts of environmental bacteria at the surface of the Surtsey was explored for the first time in diverse surface soils. Also, hot subsurface samples deep in the centre of this volcanic island were collected. Both uncultivated bacteria and archaea were found in the subsurface samples collected below 145 m.
J. Fröhlich-Nowoisky, C. Ruzene Nespoli, D. A. Pickersgill, P. E. Galand, I. Müller-Germann, T. Nunes, J. Gomes Cardoso, S. M. Almeida, C. Pio, M. O. Andreae, R. Conrad, U. Pöschl, and V. R. Després
Biogeosciences, 11, 6067–6079, https://doi.org/10.5194/bg-11-6067-2014, https://doi.org/10.5194/bg-11-6067-2014, 2014
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We have investigated the presence of archaea as well as their amoA gene diversity in aerosol particles collected over 1 year in central Europe and found that, within the 16S and amoA gene, Thaumarchaeota prevail and experience a diversity peak in fall, while only few Euryarchaeota were detected primarily in spring. We also compared the results with airborne archaea from Cape Verde and observe that the proportions of Euryarchaeota seem to be enhanced in coastal air compared to continental air.
A. L. Gagliano, W. D'Alessandro, M. Tagliavia, F. Parello, and P. Quatrini
Biogeosciences, 11, 5865–5875, https://doi.org/10.5194/bg-11-5865-2014, https://doi.org/10.5194/bg-11-5865-2014, 2014
Cited articles
Abril, G., Bouillon, S., Darchambeau, F., Teodoru, C. R., Marwick, T. R., Tamooh, F., Ochieng Omengo, F., Geeraert, N., Deirmendjian, L., Polsenaere, P., and Borges, A. V.: Technical Note: Large overestimation of pCO2 calculated from pH and alkalinity in acidic, organic-rich freshwaters, Biogeosciences, 12, 67–78, https://doi.org/10.5194/bg-12-67-2015, 2015.
Alves-de-Souza, C., González, M., and Iriarte, J.: Functional groups in
marine phytoplankton assemblages dominated by diatoms in fjords of southern
Chile, J. Plankton Res., 30, 1233–1243, https://doi.org/10.1093/plankt/fbn079, 2008.
Alvites, D.: Variabilidad espacial y calcificación de las comunidades de
cocolitofóridos en el sistema de afloramiento costero frente al
Callao-Peruí, Tesis de Maestro, Universidad Peruana Cayetano Heredia, 128 pp., 2016.
Bach, L., Riebesell, U., Gutowska, M., Federwisch, L., and Schulz, K.: A
unifying concept of coccolithophore sensitivity to changing carbonate
chemistry embedded in an ecological framework, Prog. Oceanogr.,
135, 125–138, https://doi.org/10.1016/j.pocean.2015.04.012, 2015.
Baumann, K.-H., Andruleit, H., and Samtleben, C.: Coccolithophores in the
Nordic Seas: comparison of living communities with surface sediment
assemblages, Deep-Sea Res. Pt. II, 47, 1743–1772, https://doi.org/10.1016/S0967-0645(00)00005-9, 2000.
Beaufort, L., Couapel, M., Buchet, N., Claustre, H., and Goyet, C.: Calcite production by coccolithophores in the south east Pacific Ocean, Biogeosciences, 5, 1101–1117, https://doi.org/10.5194/bg-5-1101-2008, 2008.
Beaufort, L., Probert, I., de Garidel-Thoron, T., Bendif, E., Ruiz-Pino, D.,
Metzl, N., Goyet, C., Buchet, N., Coupel, P., Grelaud, M., Rost, B.,
Rickaby, R., and de Vargas, C.: Sensitivity of coccolithophores to carbonate
chemistry and ocean acidification, Nature, 476, 80–83,
https://doi.org/10.1038/nature10295, 2011.
Bendif, E., Probert, I., Carmichael, M., Romac, S., Hagino, K., and de
Vargas, C.: Genetic delineation between and within the widespread
coccolithophore morpho-species Emiliania huxleyi and Gephyrocapsa oceanica (Haptophyta), J. Phycol., 50,
140–148, https://doi.org/10.1111/jpy.12147, 2014.
Bendif, E., Probert, I., Díaz-Rosas, F., Thomas, D., van den Engh, G.,
Young, J., and von Dassow, P.: Recent reticulate evolution in the
ecologically dominant lineage of coccolithophores, Front. Microbiol., 7, 784, https://doi.org/10.3389/fmicb.2016.00784, 2016.
Bendif, E., Nevado, B., Wong, E., Hagino, K., Probert, I., Young, J.,
Rickaby, R., and Filatov, D.: Repeated species radiations in the recent
evolution of the key marine phytoplankton lineage Gephyrocapsa, Nat. Commun.,
10, 4234, https://doi.org/10.1038/s41467-019-12169-7, 2019.
Berge, G.: Discoloration of the sea due to Coccolithus huxley I “bloom”, Sarsia, 6,
27–40, https://doi.org/10.1080/00364827.1962.10410259, 1962.
Birkenes, E. and Braarud, T.: Phytoplankton in the Oslo fjord during a
“Coccolithus huxleyi-summer”, Avhandl. Norske Videnskaps – Akd. Oslo. I. Mat. Naturv. Klasse,
2, 1–23, 1952.
Bollmann, J., Cortés, M., Haidar, A., Brabec, B., Close, A., Hofmann,
R., Palma, S., Tupas, L., and Thierstein, H.: Techniques for quantitative
analyses of calcareous marine phytoplankton, Mar. Micropaleontol.,
44, 163–185, https://doi.org/10.1016/S0377-8398(01)00040-8, 2002.
Broecker, W. and Clark, E.: Ratio of coccolith CaCO3 to foraminifera
CaCO3 in late Holocene deep sea sediments, Paleoceanography, 24,
1–11, https://doi.org/10.1029/2009PA001731, 2009.
Brzezinski, M., Dickson, M., Nelson, D., and Sambrotto, R.: Ratios of Si, C
and N uptake by microplankton in the Southern Ocean, Deep-Sea Res. Pt. II, 50, 619–633,
https://doi.org/10.1016/S0967-0645(02)00587-8, 2003.
Cermeño, P., Lee, J.-B., Wyman, K., Schofield, O., and Falkowski, P:
Competitive dynamics in two species of marine phytoplankton under
non-equilibrium conditions, Mar. Ecol. Prog. Ser., 429, 1928, https://doi.org/10.3354/meps09088, 2011.
Charalampopoulou, A., Poulton, A., Tyrrell, T., and Lucas, M.: Irradiance
and pH affect coccolithophore community composition on a transect between
the North Sea and the Arctic Ocean, Mar. Ecol. Prog. Ser., 431, 25–43,
https://doi.org/10.3354/meps09140, 2011.
Charalampopoulou, A., Poulton, A. J., Bakker, D. C. E., Lucas, M. I., Stinchcombe, M. C., and Tyrrell, T.: Environmental drivers of coccolithophore abundance and calcification across Drake Passage (Southern Ocean), Biogeosciences, 13, 5917–5935, https://doi.org/10.5194/bg-13-5917-2016, 2016.
Cook, S., Jones, R., Vaillancourt, R., and Hallegraeff, G.: Genetic
differentiation among Australian and southern ocean populations of the
ubiquitous coccolithophore Emiliania huxleyi (Haptophyta), Phycologia, 52, 368–374, https://doi.org/10.2216/12-111.1, 2013.
Corstjens, P., van der Kooij, A., Linschooten, C., Brouwers, G.-J.,
Westbroek, P., and Vrind-de Jong, E.: GPA, a calcium-binding protein in the
coccolithophorid Emiliania huxleyi (Prymnesiophyceae), J. Phycol., 34, 622–630,
1998.
Cubillos, J., Wright, S., Nash, G., de Salas, M., Griffiths, B., Tilbrook,
B., Poisson, A., and Hallegraeff, G.: Calcification morphotypes of the
coccolithophorid Emiliania huxleyi in the Southern Ocean: changes in 2001 to 2006 compared to
historical data, Mar. Ecol. Prog. Ser., 348, 47–54,
https://doi.org/10.3354/meps07058, 2007.
Cuevas, A., Tapia, F., Iriarte, J., Gonzaìlez, H., Silva, N., and Vargas,
C.: Interplay between freshwater discharge and oceanic waters modulates
phytoplankton size-structure in fjords and channel systems of the Chilean
Patagonia, Prog. Oceanogr., 173, 103–113, https://doi.org/10.1016/j.pocean.2019.02.012, 2019.
Cyronak, T., Schulz, K., and Jokiel, P.: The Omega myth: what really drives
lower calcification rates in an acidifying ocean, ICES J. Mar. Sci., 73, 558–562, https://doi.org/10.1093/icesjms/fsv075, 2016.
Dávila, P., Figueroa, D., and Müller, E.: Freshwater input into the
coastal ocean and its relation with the salinity distribution off austral
Chile (35–55∘ S), Cont. Shelf Res., 22, 521–534,
https://doi.org/10.1016/S0278-4343(01)00072-3, 2002.
Díaz-Rosas, F., Alves-de-Souza, C., Alarcón, E., Menschel, E., González, H., Torres, R., and von Dassow, P.: Scanning electron microscopy image dataset – Abundances and morphotypes of the coccolithophore Emiliania huxleyi in southern Patagonian fjords and channels, Zenodo [data set], https://doi.org/10.5281/zenodo.4292020, 2021a.
Díaz-Rosas, F., Alves-de-Souza, C., Alarcón, E., Menschel, E., González, H., Torres, R., and von Dassow, P.: Inverted microscopy image dataset – Carbon biomass of microplankton assemblages in southern Patagonian fjords and channels, Zenodo [data set], https://doi.org/10.5281/zenodo.5139161, 2021b.
Díaz-Rosas, F., Alves-de-Souza, C., Alarcón, E., Menschel, E., González, H., Torres, R., and von Dassow, P.: Abundances of planktonic items found in southern Patagonia during the austral late-spring 2015, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.936506, 2021c.
Díaz-Rosas, F., Alves-de-Souza, C., Alarcón, E., Menschel, E., González, H., Torres, R., and von Dassow, P.: Abundances of coccolithophores found in southern Patagonia during the austral early-spring 2017, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.936509, 2021d.
Díaz-Rosas, F., Alves-de-Souza, C., Alarcón, E., Menschel, E., González, H., Torres, R., and von Dassow, P.: Physical and chemical parameters and associated abundance and biovolume of Emiliania huxleyi morphotypes recorded in southern Patagonia during the austral late-spring 2015 and early-spring 2017, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.936505, 2021e.
Dickson, A. and Millero, F.: A comparison of the equilibrium constants for
the dissociation of carbonic acid in seawater media, Deep-Sea Res., 34, 1733–1743,
https://doi.org/10.1016/0198-0149(87)90021-5, 1987.
Dolédec, S., Chessel, D., and Gimaret-Carpentier, C.: Niche separation in
community analysis: A new method, Ecology, 81, 2914–2927, https://doi.org/10.2307/177351, 2000.
Doney, S., Fabry, V., Feely, R., and Kleypas, J.: Ocean acidification: the
other CO2 problem, Annu. Rev. Mar. Sci., 1, 169–192, https://doi.org/10.1146/annurev.marine.010908.163834, 2009.
Dray, S. and Dufour, A.: The ade4 package: implementing the duality diagram
for ecologists, J. Stat. Softw, 22, 1–20, https://doi.org/10.18637/jss.v022.i04,
2007.
Dufrene, M. and Legendre, P.: Species assemblages and indicator species: the
need for a flexible asymmetrical approach, Ecol. Monogr., 67, 345–366,
https://doi.org/10.2307/2963459, 1997.
Egge, E., Johannessen, T., Andersen, T., Eikrem, W., Bittner, L., Larsen,
A., Sandaa, R., and Edvardsen, B.: Seasonal diversity and dynamics of
haptophytes in the Skagerrak, Norway, explored by high-throughput
sequencing, Mol. Ecol., 24, 3026–3042, https://doi.org/10.1111/mec.13160, 2015.
Erga, S.: Ecological studies on the phytoplankton of Boknafjorden, western
Norway, 1. The effect of water exchange processes and environmental factors
on temporal and vertical variability of biomass, Sarsia, 74, 161–176,
https://doi.org/10.1080/00364827.1989.10413425, 1989.
Feely, R., Doney, S., and Cooley, S.: Ocean acidification: Present
conditions and future changes in a high-CO2 world, Oceanography, 22,
36–47, https://doi.org/10.5670/oceanog.2009.95, 2009.
Fernández, E., Marañón, E., Harbour, D., Kristiansen, S., and
Heimdal, B.: Patterns of carbon and nitrogen uptake during blooms of
Emiliania huxleyi in two Norwegian fjords, J. Plankton Res., 18, 2349–2366,
https://doi.org/10.1093/plankt/18.12.2349, 1996.
Filatov, D.: Extreme Lewontin's paradox in ubiquitous marine phytoplankton
species, Mol. Biol. Evol., 36, 4–14, https://doi.org/10.1093/molbev/msy195, 2019.
Franco, A., Gruber, N., Frölicher, T., and Artman, L.: Contrasting
impact of future CO2 emission scenarios on the extent of CaCO3
mineral undersaturation in the Humboldt Current System, J. Geophys. Res.-Oceans, 123, 2018–2036, https://doi.org/10.1002/2018JC013857, 2018.
Gafar, N., Eyre, B., and Schulz, K.: A conceptual model for projecting
coccolithophorid growth, calcification and photosynthetic carbon fixation
rates in response to global ocean change, Front. Mar. Sci., 4,
433, https://doi.org/10.3389/fmars.2017.00433, 2018.
Giraudeau, J., Monteiro, P., and Nikodemus, K.: Distribution and
malformation of living coccolithophores in the northern Benguela upwelling
system off Namibia, Mar. Micropaleontol., 22, 93–110, https://doi.org/10.1016/0377-8398(93)90005-I, 1993.
González, H., Castro, L., Daneri, G., Iriarte, J., Silva, N., Tapia, F.,
Teca, E., and Vargas, C.: Land-ocean gradient in haline stratification and
its effects on plankton dynamics and trophic carbon fluxes in Chilean
Patagonian fjords (47–50∘ S), Prog. Oceanogr.,
119, 32–47, https://doi.org/10.1016/j.pocean.2013.06.003, 2013.
Gran-Stadniczeñko, S., Šupraha, L., Egge, E., and Edvardsen, B.:
Haptophyte diversity and vertical distribution explored by 18∘ S and 28∘ S
ribosomal RNA gene metabarcoding and scanning electron microscopy, J.
Eukaryot. Microbiol., 64, 514–532, https://doi.org/10.1111/jeu.12388, 2017.
Hagino, K. and Okada, H.: Intra- and infra-specific morphological variation
in selected coccolithophore species in the equatorial and subequatorial
Pacific Ocean, Mar. Micropaleontol., 58, 184–206, https://doi.org/10.1016/j.marmicro.2005.11.001, 2006.
Hagino, K., Bendif, E., Young, J., Kogame, K., Probert, I., Takano, Y.,
Horiguchi, T., de Vargas, C., and Okada, H.: New evidence for morphological
and genetic variation in the cosmopolitan coccolithophore Emiliania huxleyi
(Prymnesiophyceae) from the cox1b-atp4 genes, J. Phycol., 47, 1164–1176,
https://doi.org/10.1111/j.1529-8817.2011.01053.x, 2011.
Hartin, C. A., Bond-Lamberty, B., Patel, P., and Mundra, A.: Ocean acidification over the next three centuries using a simple global climate carbon-cycle model: projections and sensitivities, Biogeosciences, 13, 4329–4342, https://doi.org/10.5194/bg-13-4329-2016, 2016.
Harvey, E., Bidle, K., and Johnson, M.: Consequences of strain variability
and calcification in Emiliania huxleyi on microzooplankton grazing, J. Plankton
Res., 37, 1137–1148, https://doi.org/10.1093/plankt/fbv081, 2015.
Haunost, M., Riebesell, U., and Bach, L.: The calcium carbonate shell of
Emiliania huxleyi provides limited protection against viral infection, Front. Mar. Sci., 7, 530757, https://doi.org/10.3389/fmars.2020.530757, 2020.
Henderiks, J., Winter, A., Elbra'chter, M., Feistel, R.,
van der Plas, A., Nausch, G., and Barlow, R.: Environmental controls on
Emiliania huxleyi morphotypes in the Benguela coastal upwelling system (SE Atlantic), Mar. Ecol. Prog. Ser., 448, 51–66, https://doi.org/10.3354/meps09535, 2012.
Hernández, T., Bacher, C., Soudant, D., Belin, C., and Barillé, L.:
Assessing phytoplankton realized niches using a French national
phytoplankton monitoring network, Estuarine, Coast. Shelf Sci., 159,
15–27, https://doi.org/10.1016/j.ecss.2015.03.010, 2015.
Hillebrand, H., Dürselen, C., Kirschtel, D., Pollingher, U., and Zohary,
T.: Biovolume calculation for pelagic and benthic microalgae, J. Phycol.,
35, 403–424, https://doi.org/10.1046/j.1529-8817.1999.3520403.x, 1999.
Hopkins, J., Henson, S., Poulton, A., and Balch, W.: Regional
characteristics of the temporal variability in the global particulate
inorganic carbon inventory, Global Biogeochem. Cy., 33,
1328–1338, https://doi.org/10.1029/2019GB006300, 2019.
Iglesias-Rodriguez, D., Halloran, P., Rickaby, R., Hall, I.,
Colmenero-Hidalgo, E., Gittins, J., Green, D., Tyrrell, T., Gibbs, S., von
Dassow, P., Rehm, E., Armbrust, V., and Boessenkool, K.: Phytoplankton
calcification in a high-CO2 world, Science, 320, 336–340, https://doi.org/10.1126/science.1154122, 2008.
Jin, P., Ding, J., Xing, T., Riebesell, U., and Gao, K.: High levels of
solar radiation offset impacts of ocean acidification on calcifying and
non-calcifying strains of Emiliania huxleyi, Mar. Ecol. Prog. Ser., 568, 47–58,
https://doi.org/10.3354/meps12042, 2017.
Johns, Ch., Grubb, A., Nissimov, J., Natale, F., Knapp, V., Mui, A.,
Fredricks, H., Van Mooy, B., and Bidle, K.: The mutual interplay between
calcification and coccolithovirus infection, Environ. Microb., 21,
1896–1915, https://doi.org/10.1111/1462-2920.14362, 2019.
Johnsen, S. and Bollmann, J.: Coccolith mass and morphology of different
Emiliania huxleyi morphotypes: A critical examination using Canary Islands material, PLOS ONE,
15, e0230569, https://doi.org/10.1371/journal.pone.0230569, 2020.
Jones, E., Chierici, M., Skjelvan, I., Norli, M., Børsheim, K.,
Lødemel, H., Sørensen, K., King, A., Lauvset, S., Jackson, K., de
Lange, T., Johannsessen, T., and Mourgues, C.: Monitoring ocean
acidification in Norwegian seas in 2018, Rapport, Miljødirektoratet,
M-1417-2019, 2019.
Klaas, C. and Archer, D.: Association of sinking organic matter with various
types of mineral ballast in the deep sea: Implications for the rain ratio,
Global Biogeochem. Cy., 16, 1116, https://doi.org/10.1029/2001GB001765, 2002.
Kottmeier, D., Rokitta, S., and Rost, B.: Acidification, not carbonation, is
the major regulator of carbon fluxes in the coccolithophore Emiliania huxleyi, New
Phytol., 211, 126–137, 2016.
Kleypas, J., Feely, R., Fabry, V., Langdon, C., Sabine, C., and Robbins, L.
Impacts of Ocean Acidification on Coral Reefs and Other Marine Calcifiers: A
Guide for Future Research. Report of a workshop held 18–20 April 2005, St. Petersburg, FL, sponsored by NSF, NOAA, and the U.S. Geological Survey, 88 pp., 2006.
Kristiansen, S., Thingstad, F., van der Wal, P., Farbrot, T., and Skjoldal,
E.: An Emiliania huxleyi dominated subsurface bloom in Samnangerfjorden, western Norway,
Importance of hydrography and nutrients, Sarsia, 79, 357–368,
https://doi.org/10.1080/00364827.1994.10413567, 1994.
Krueger-Hadfield, S. A., Balestreri, C., Schroeder, J., Highfield, A., Helaouët, P., Allum, J., Moate, R., Lohbeck, K. T., Miller, P. I., Riebesell, U., Reusch, T. B. H., Rickaby, R. E. M., Young, J., Hallegraeff, G., Brownlee, C., and Schroeder, D. C.: Genotyping an Emiliania huxleyi (prymnesiophyceae) bloom event in the North Sea reveals evidence of asexual reproduction, Biogeosciences, 11, 5215–5234, https://doi.org/10.5194/bg-11-5215-2014, 2014.
Langer, G. and Geisen, M.: Species-specific responses of calcifying algae to
changing seawater carbonate chemistry, Geochem. Geophys. Geosys.,
7, Q09006, https://doi.org/10.1029/2005GC001227, 2006.
Langer, G., Nehrke, G., Probert, I., Ly, J., and Ziveri, P.: Strain-specific responses of Emiliania huxleyi to changing seawater carbonate chemistry, Biogeosciences, 6, 2637–2646, https://doi.org/10.5194/bg-6-2637-2009, 2009.
Langer, G., Probert, I., Nehrke, G., and Ziveri, P.: The morphological
response of Emiliania huxleyi to seawater carbonate chemistry changes: an inter-strain
comparison, J. Nannoplankton Res., 32, 29–34, ISSN 1210-8049, 2011.
Leblanc, K., Queìguiner, B., Diaz, F., Cornet, V., Michel-Rodriguez, M.,
Durrieu de Madron, X., Bowler, C., Malviya, S., Thyssen, M., Greìgori, G.,
Rembauville, M., Grosso, O., Poulain, J., de Vargas, C., Pujo-Pay, M., and
Conan, P.: Nanoplanktonic diatoms are globally overlooked but play a role in
spring blooms and carbon export, Nat. Commun., 9, 953, https://doi.org/10.1038/s41467-018-03376-9, 2018.
Legendre, P. and Legendre, L.: Numerical Ecology, 3rd English edition,
Elsevier Science BV, Amsterdam, 1006 pp., 2012.
McIntyre, A., Bé, A., and Roche, M.: Modern Pacific coccolithophorida: a
paleontological thermometer, Trans. N. Y. Acad. Sci., 32, 720–731, https://doi.org/10.1111/j.2164-0947.1970.tb02746.x, 1970.
Margalef, R.: Life-forms of phytoplankton as survival alternatives in an
unstable environment, Oceanol. Ac., 1, 493–509, 1978.
Mehrbach, C., Culberson, C., Hawley, J., and Pytkowicx, R.: Measurement of
the apparent dissociation constants of carbonic acid in seawater at
atmospheric pressure, Limnol. Oceanogr., 18, 897–907,
https://doi.org/10.4319/lo.1973.18.6.0897, 1973.
Mella-Flores, D., Machon, J., Contreras-Porcia, L., Mesa-Campbell, S., and
von Dassow, P.: Differential responses of Emiliania huxleyi (Haptophyta) strains to copper
excess, Cryptogamie, Algologie, 39, 481–509, https://doi.org/10.7872/crya/v39.iss4.2018.481, 2018.
Menden-Deuer, S. and Lessard, E.: Carbon to volume relationships for
dinoflagellates, diatoms, and other protist plankton, Limnol. Oceanogr.,
45, 569–579, https://doi.org/10.4319/lo.2000.45.3.0569, 2000.
Menschel, E. and González, H.: Carbon and calcium carbonate export
driven by appendicularian faecal pellets in the Humboldt current system off
Chile, Sci. Rep., 9, 16501, https://doi.org/10.1038/s41598-019-52469-y, 2019.
Menschel, E., Gonzaìlez, H., and Giesecke, R.: Coastal-oceanic distribution
gradient of coccolithophores and their role in the carbonate flux of the
upwelling system off Concepcioìn, Chile (36∘ S), J. Plankton Res.,
38, 798–817, https://doi.org/10.1093/plankt/fbw037, 2016.
Meyer, J. and Riebesell, U.: Reviews and Syntheses: Responses of
coccolithophores to ocean acidification: a meta-analysis, Biogeosciences,
12(6), 1671–1682, https://doi.org/10.5194/bg-12-1671-2015, 2015.
Monteiro, F., Bach, L., Brownlee, C., Bown, P., Rickaby, R., Poulton, A.,
Tyrrell, T., Beaufort, L., Dutkiewicz, S., Gibbs, S., Gutowska, M., Lee, R.,
Riebesell, U., Young, J., and Ridgwell, A.: Why marine phytoplankton
calcify, Sci. Adv., 2, e1501822, https://doi.org/10.1126/sciadv.1501822, 2016.
Müller, M., Trull, T., and Hallegraeff, G.: Differing
responses of three Southern Ocean Emiliania huxleyi ecotypes to changing seawater carbonate
chemistry, Mar. Ecol. Prog. Ser., 531, 81–90, https://doi.org/10.3354/meps11309, 2015.
Müller, M., Trull, T., and Hallegraeff, G.: Independence
of nutrient limitation and carbon dioxide impacts on the Southern Ocean
coccolithophore Emiliania huxleyi, ISME J., 11, 1777–1787, https://doi.org/10.1038/ismej.2017.53, 2017.
Nejstgaard, J., Gismervik, I., and Solberg, P.: Feeding and reproduction by
Calanus finmarchicus, and microzooplankton grazing during mesocosm blooms of diatoms and the
coccolithophore Emiliania huxleyi, Mar. Ecol. Prog. Ser., 147, 197–217, 1997.
O'Brien, C. J., Peloquin, J. A., Vogt, M., Heinle, M., Gruber, N., Ajani, P., Andruleit, H., Arístegui, J., Beaufort, L., Estrada, M., Karentz, D., Kopczyńska, E., Lee, R., Poulton, A. J., Pritchard, T., and Widdicombe, C.: Global marine plankton functional type biomass distributions: coccolithophores, Earth Syst. Sci. Data, 5, 259–276, https://doi.org/10.5194/essd-5-259-2013, 2013.
Oksanen, J., Kindt, R., Legendre, P., O'Hara, B., and Stevens, H.: The vegan
package, Community Ecology Package, 10, 631–637, 2007.
Paasche, E. and Kristiansen, S.: Ammonium regeneration by microzooplankton
in the Oslofjord, Mar. Biol., 69, 55–63, https://doi.org/10.1007/BF00396961, 1982.
Paredes, M., Montecino, V., Anic, V., Egaña, M., and Guzmán, L.:
Diatoms and dinoflagellates macroscopic regularities shaped by intrinsic
physical forcing variability in Patagonian and Fuegian fjords and channels
(48–56∘ S), Prog. Oceanogr.,
129, 85–97, https://doi.org/10.1016/j.pocean.2014.07.002, 2014.
Passow, U. and Carlson, C.: The biological pump in a high CO2 world,
Mar. Ecol. Prog. Ser., 470, 249–271, https://doi.org/10.3354/meps09985, 2012.
Paul, A. and Bach, L.: Universal response pattern of phytoplankton growth
rates to increasing CO2, New Phytol., 228, 1710–1716, https://doi.org/10.1111/nph.16806, 2020.
Pierrot, D., Lewis, E., and Wallace, D.: MS Excel Program Developed for
CO2 System Calculations. ORNL/CDIAC-105a, Carbon Dioxide Information
Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy,
Oak Ridge, Tennessee, https://doi.org/10.3334/CDIAC/otg.CO2SYS_XLS_CDIAC105a, 2006.
Poulton, A., Young, J., Bates, N., and Balch, W.: Biometry of detached
Emiliania huxleyi coccoliths along the Patagonian Shelf, Mar. Ecol. Prog. Ser., 443, 1–17,
https://doi.org/10.3354/meps09445, 2011.
Poulton, A., Painter, S., Young, J., Bates, N., Bowler, B., Drapeau, D.,
Lyczsckowski, E., and Balch, W.: The 2008 Emiliania huxleyi bloom along the Patagonian Shelf:
Ecology, biogeochemistry, and cellular calcification, Global Biogeochem. Cy., 27, 1023–1033, https://doi.org/10.1002/2013GB004641, 2013.
R Core Team: R: A language and environment for statistical computing.
R Foundation for Statistical Computing, Vienna, Austria, available at: http://www.R-project.org/ (last access: 16 November 2020), 2019.
Read, B., Kegel, J., Klute, M., Kuo, A., Lefebvre, S., Maumus, F., Mayer,
Ch., Miller, J., Monier, A., Salamov, A., Young, J., Aguilar, M., Claverie,
J.-M-, Frickenhaus, S., Gonzalez, K., Herman, E., Lin, Y.-Ch., Napier, J.,
Ogata, H., Sarno, A., Shmutz, J., Schroeder, D., de Vargas, C., Verret, F.,
von Dassow, P., Valentin, K., Van de Peer, Y., Wheeler, G., Emiliania
huxleyi Annotation Consortium, Dacks, J., Delwiche, Ch., Dyhrman, S.,
Glöckner, G., John, U., Richards, T., Worden, A., Zhang, X., and
Grigoriev, I.: Pan genome of the phytoplankton Emiliania underpins its global
distribution, Nature, 499, 209–213, https://doi.org/10.1038/nature12221, 2013.
Rickaby, R., Hermoso, M., Lee, R., Rae, B., Heureux, A., Balestreri, C.,
Chakravarti, L., Schroeder, D., and Brownlee, C.: Environmental carbonate
chemistry selects for phenotype of recently isolated strains of Emiliania huxleyi, Deep-Sea Res. Pt. II, 127, 2840, https://doi.org/10.1016/j.dsr2.2016.02.010, 2016.
Riebesell, U., Bach, L., Bellerby, R., Monsalve, R., Boxhammer, T., Czerny,
J., Larsen, A., Ludwig, A., and Schulz, K.: Competitive fitness of a
predominant pelagic calcifier impaired by ocean acidification, Nat.
Geosci., 10, 19–23, https://doi.org/10.1038/ngeo2854, 2017.
Rivero-Calle, S., Gnanadesikan, A., Del Castillo, C., Balch, W., and
Guikema, S.: Multidecadal increase in North Atlantic coccolithophores and
the potential role of rising CO2, Science, 350, 1533–1537,
https://doi.org/10.1126/science.aaa8026, 2015.
Rokitta, S. and Rost, B.: Effects of CO2 and their modulation by light
in the life-cycle stages of the coccolithophore Emiliania huxleyi, Limnology and
Oceanography, 57, 607–618, https://doi.org/10.4319/lo.2012.57.2.0607, 2012.
Saavedra-Pellitero, M., Baumann, K., Flores, J., and Gersonde, R.:
Biogeographic distribution of living coccolithophores in the Pacific sector
of the Southern Ocean, Mar. Micropaleontol., 109, 1–20, https://doi.org/10.1016/j.marmicro.2014.03.003, 2014.
Saavedra-Pellitero, M., Baumann, K.-H., Fuertes, M. Á., Schulz, H., Marcon, Y., Vollmar, N. M., Flores, J.-A., and Lamy, F.: Calcification and latitudinal distribution of extant coccolithophores across the Drake Passage during late austral summer 2016, Biogeosciences, 16, 3679–3702, https://doi.org/10.5194/bg-16-3679-2019, 2019.
Samtleben, C., Schäfer, P., Andruleit, H., Baumann, A., Baumann, K.,
Kohly, A., Matthiessen, J., Schröder-Ritzrau, A., and “Synpal” Working
Group: Plankton in the Norwegian-Greenland Sea: from living communities to
sediment assemblages - an actualistic approach, Geol. Rundsch., 84,
108–136, https://doi.org/10.1007/BF00192245, 1995.
Schlitzer, R.: Ocean Data View, available at: https://odv.awi.de/ (last access: 27 November 2020), 2018.
Schroeder, D., Biggi, G., Hall, M., Davy, J., Martínez, J., Richardson,
A., Malin, G., and Wilson, W.: A genetic marker to separate Emiliania huxleyi (Prymnesiophyceae)
morphotypes, J. Phycol., 41, 874–879, https://doi.org/10.1111/j.1529-8817.2005.04188.x, 2005.
Sicko-Goad, L., Schelske, C., and Stoermer, E.: Estimation of intracellular
carbon and silica content of diatoms from natural assemblages using
morphometric techniques, Limnol. Oceanogr., 29, 1170–1178, https://doi.org/10.4319/lo.1984.29.6.1170, 1984.
Sievers, H. and Silva, N.: Water masses and circulation in austral Chilean
channels and fjords, in: Progress in the oceanographic knowledge of Chilean
interior waters, from Puerto Montt to Cape Horn, edited by: Silva, N. and
Palma, S., Comité Oceanográfico Nacional, Pontificia Universidad
Católica de Valparaiso, 53–58, 2008.
Smith, H., Tyrrell, T., Charalampopoulou, A., Dumousseaud, C., Legge, O.,
Birchenough, S., Pettit, L., Garley, R., Hartman, S., Hartman, M., Sagoo,
N., Daniels, C., Achterberg, E., and Hydes, D.: Predominance of heavily
calcified coccolithophores at low CaCO3 saturation during winter in the
Bay of Biscay, P. Natl. Acad. Sci. USA, 109, 8845–8849,
https://doi.org/10.1073/pnas.1117508109, 2012.
Smith, H. E. K., Poulton, A. J., Garley, R., Hopkins, J., Lubelczyk, L. C., Drapeau, D. T., Rauschenberg, S., Twining, B. S., Bates, N. R., and Balch, W. M.: The influence of environmental variability on the biogeography of coccolithophores and diatoms in the Great Calcite Belt, Biogeosciences, 14, 4905–4925, https://doi.org/10.5194/bg-14-4905-2017, 2017.
Strom, S., Bright, K., Fredrickson, K., and Cooney, E.: Phytoplankton
defenses: Do Emiliania huxleyi coccoliths protect against microzooplankton predators?,
Limnol. Oceanogr., 63, 617–627, https://doi.org/10.1002/lno.10655, 2018.
Takahashi, T., Sutherland, S., Chipman, D., Goddard, J., Ho, Ch., Newberger,
T., Sweeney, C., and Munro, D.: Climatological distributions of pH,
pCO2, total CO2, alkalinity, and CaCO3 saturation in the
global surface ocean, and temporal changes at selected locations, Mar.
Chem., 164, 95–125, https://doi.org/10.1016/j.marchem.2014.06.004, 2014.
Taylor, A., Brownlee, C., and Wheeler, G.: Coccolithophore cell biology:
Chalking up progress, Annu. Rev. Mar. Sci., 9, 283–310,
https://doi.org/10.1146/annurev-marine-122414-034032, 2017.
Torres, R., Pantoja, S., Harada, N., González, H., Daneri, G.,
Frangopulos, M., Rutllant, J., Duarte, C., Rúiz-Halpern, S., Mayol, E.,
and Fukasawa, M.: Air-sea CO2 fluxes along the coast of Chile: From
CO2 outgassing in central northern upwelling waters to CO2 uptake
in southern Patagonian fjords, J. Geophys. Res., 116, C09006, https://doi.org/10.1029/2010JC006344, 2011.
Torres, R., Silva, N., Reid, B., and Frangopulos, M.: Silicic acid
enrichment of subantarctic surface water from continental inputs along the
Patagonian archipelago interior sea (41–56∘ S), Prog. Oceanogr., 129, 50–61, https://doi.org/10.1016/j.pocean.2014.09.008, 2014.
Torres, R., Reid, B., Frangopulos, M., Alarcón E., Márquez M.,
Haussermann, V., Försterra, G., Pizarro, G., Iriarte, J., and Gonzalez,
H.: Freshwater runoff effects on the production of biogenic silicate and
chlorophyll-a in western Patagonia archipelago (50-51∘ S),
Estuarine, Coast. Shelf Sci., 241, 106597, https://doi.org/10.1016/j.ecss.2020.106597, 2020.
Tynan, E., Tyrrell, T., and Achterberg, E.: Controls on the seasonal
variability of calcium carbonate saturation states in the Atlantic gateway
to the Arctic Ocean, Mar. Chem., 158, 1–9, https://doi.org/10.1016/j.marchem.2013.10.010, 2014.
Tyrrell, T. and Merico, A.: Emiliania huxleyi: bloom observation and the conditions that
induce them, in Coccolithophores, edited by: Thierstein, H. and Young, J.,
Springer, Berlin, Heidelberg, Germany, 75–97, https://doi.org/10.1007/978-3-662-06278-4_4, 2004.
Utermöhl, H.: Vervollkommnung der quantitativen phytoplankton-methodik,
Mitteilungen. Internationale Vereinigung für theoretische und angewandte
Limnologie, 9, 1–38, 1958.
van Bleijswijk, J., van der Wal, P., Kempers, R., Veldhuis, M., Young, J.,
Muyzer, G., Vrind-de Jong, E., and Westbroek, P.: Distribution of two types
of Emiliania huxleyi (Prymnesiophyceae) in the northeast Atlantic region as determined by
immunofluorescence and coccolith morphology, J. Phycol., 27, 566–570,
https://doi.org/10.1111/j.0022-3646.1991.00566.x, 1991.
Vivanco, X. and Seguel, M.: Manual Técnico – Curso
teórico-práctico para el muestreo, identificación y
enumeración de Alexandrium catenella y otros taxa nocivos, Instituto de Fomento Pesquero,
Puerto Montt,
Chile, available at: https://www.ifop.cl/marearoja/wp-content/uploads/sites/2/2016/07/Manual_Tecnico_curso_Marzo_2009-mod.pdf (last access: 18 November 2020), 2009.
von Dassow, P., John, U., Ogata, H., Probert, I., Bendif, E., Kegel, J.,
Audic, S., Wincker, P., Da Silva, C., Claverie, J., Doney, S., Glover, D.,
Mella, D., Herrera, Y., Lescot, M., Garet-Delmas, M., and de Vargas, C.:
Life-cycle modification in open oceans accounts for genome variability in a
cosmopolitan phytoplankton, ISME J., 9, 1365–1377, https://doi.org/10.1038/ismej.2014.221, 2015.
von Dassow, P., Díaz-Rosas, F., Bendif, E. M., Gaitán-Espitia, J.-D., Mella-Flores, D., Rokitta, S., John, U., and Torres, R.: Over-calcified forms of the coccolithophore Emiliania huxleyi in high-CO2 waters are not preadapted to ocean acidification, Biogeosciences, 15, 1515–1534, https://doi.org/10.5194/bg-15-1515-2018, 2018.
Young, J. and Westbroek, P.: Genotypic variation in the coccolithophorid
species Emiliania huxleyi, Mar. Micropaleontol., 18, 5–23,
https://doi.org/10.1016/0377-8398(91)90004-P, 1991.
Young, J.: Variation in Emiliania huxleyi coccolith morphology in samples from the Norwegian
EHUX experiment, 1992, Sarsia, 79, 417–425,
https://doi.org/10.1080/00364827.1994.10413573, 1994.
Young, J., Geisen, M., Cros, L., Kleijne, A., Sprengel, C., Probert, I., and
Ostergaard, J.: A guide to extant coccolithophore taxonomy, Journal of
Nannoplankton Research Special Issue, 1, 1–125, ISSN 1210-8049, 2003.
Young, J. R., Poulton, A. J., and Tyrrell, T.: Morphology of Emiliania huxleyi coccoliths on the northwestern European shelf – is there an influence of carbonate chemistry?, Biogeosciences, 11, 4771–4782, https://doi.org/10.5194/bg-11-4771-2014, 2014.
Zhang, Y., Fu, F., Hutchins, D., and Gao, K.: Combined effects of CO2
level, light intensity, and nutrient availability on the coccolithophore
Emiliania huxleyi, Hydrobiologia, 842, 127–141, https://doi.org/10.1007/s10750-019-04031-0, 2019.
Zingone, A., Sarno, D., Siano, R., and Marino, D.: The importance and
distinctiveness of small-sized phytoplankton in the Magellan Straits, Polar
Biol., 34, 1269–1284, https://doi.org/10.1007/s00300-010-0937-2, 2011.
Ziveri, P., Bernardi, B., Baumann, K.-H., Stoll, H., and Mortyn, G.: Sinking
of coccolith carbonate and potential contribution to organic carbon
ballasting in the deep ocean, Deep-Sea Res., 54, 659–675, https://doi.org/10.1016/j.dsr2.2007.01.006, 2007.
Zondervan, I., Zeebe, R., Rost, B., and Riebesell, U.: Decreasing marine
biogenic calcification: A negative feedback on rising atmospheric pCO2,
Global Biogeochem. Cy., 15, 507–516, https://doi.org/10.1029/2000GB001321, 2001.
Short summary
Coccolithophores are important unicellular algae with a calcium carbonate covering that might be affected by ongoing changes in the ocean due to absorption of CO2, warming, and melting of glaciers. We used the southern Patagonian fjords as a natural laboratory, where chemical conditions are naturally highly variable. One variant of a widespread coccolithophore species can tolerate these conditions, suggesting it is highly adaptable, while others were excluded, suggesting they are less adaptable.
Coccolithophores are important unicellular algae with a calcium carbonate covering that might be...
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