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1

Park, Jong-Yeon, Jong-Seong Kug, Jürgen Bader, Rebecca Rolph, and Minho Kwon. "Amplified Arctic warming by phytoplankton under greenhouse warming." Proceedings of the National Academy of Sciences 112, no. 19 (2015): 5921–26. http://dx.doi.org/10.1073/pnas.1416884112.

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Phytoplankton have attracted increasing attention in climate science due to their impacts on climate systems. A new generation of climate models can now provide estimates of future climate change, considering the biological feedbacks through the development of the coupled physical–ecosystem model. Here we present the geophysical impact of phytoplankton, which is often overlooked in future climate projections. A suite of future warming experiments using a fully coupled ocean−atmosphere model that interacts with a marine ecosystem model reveals that the future phytoplankton change influenced by
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2

Coupel, P., H. Y. Jin, M. Joo, et al. "Phytoplankton distribution in unusually low sea ice cover over the Pacific Arctic." Biogeosciences 9, no. 11 (2012): 4835–50. http://dx.doi.org/10.5194/bg-9-4835-2012.

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Abstract. A large part of the Pacific Arctic basin experiences ice-free conditions in summer as a result of sea ice cover steadily decreasing over the last decades. To evaluate the impact of sea ice retreat on the marine ecosystem, phytoplankton in situ observations were acquired over the Chukchi shelf and the Canadian basin in 2008, a year of high melting. Pigment analyses and taxonomy enumerations were used to characterise the distribution of main phytoplanktonic groups. Marked spatial variability of the phytoplankton distribution was observed in summer 2008. Comparison of eight phytoplankto
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3

Waga, Hisatomo, Hajo Eicken, Toru Hirawake, and Yasushi Fukamachi. "Variability in spring phytoplankton blooms associated with ice retreat timing in the Pacific Arctic from 2003–2019." PLOS ONE 16, no. 12 (2021): e0261418. http://dx.doi.org/10.1371/journal.pone.0261418.

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The Arctic is experiencing rapid changes in sea-ice seasonality and extent, with significant consequences for primary production. With the importance of accurate monitoring of spring phytoplankton dynamics in a changing Arctic, this study further examines the previously established critical relationship between spring phytoplankton bloom types and timing of the sea-ice retreat for broader temporal and spatial coverages, with a particular focus on the Pacific Arctic for 2003–2019. To this end, time-series of satellite-retrieved phytoplankton biomass were modeled using a parametric Gaussian func
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4

Randelhoff, Achim, Léo Lacour, Claudie Marec, et al. "Arctic mid-winter phytoplankton growth revealed by autonomous profilers." Science Advances 6, no. 39 (2020): eabc2678. http://dx.doi.org/10.1126/sciadv.abc2678.

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It is widely believed that during winter and spring, Arctic marine phytoplankton cannot grow until sea ice and snow cover start melting and transmit sufficient irradiance, but there is little observational evidence for that paradigm. To explore the life of phytoplankton during and after the polar night, we used robotic ice-avoiding profiling floats to measure ocean optics and phytoplankton characteristics continuously through two annual cycles in Baffin Bay, an Arctic sea that is covered by ice for 7 months a year. We demonstrate that net phytoplankton growth occurred even under 100% ice cover
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5

Barinova, Sophia, Viktor Gabyshev, and Olga Gabysheva. "Phytoplankton in the Ecological Assessment of the Mining Facilities Influence on the Anabar River in the Permafrost Zone of the Arctic, Eastern Siberia, Russia." Land 12, no. 9 (2023): 1775. http://dx.doi.org/10.3390/land12091775.

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In modern conditions of climate change and increased anthropogenic pressure on aquatic ecosystems, the study of the diversity of organisms in the Arctic has become a top priority. Our study continues a series of studies on the biodiversity of Arctic rivers. Using innovative methods, such as ecological mapping, statistics, and bioindication, we identify environmental factors that influence phytoplankton diversity in the river basin under study. For the Anabar Arctic River, an increase in the diversity of phytoplankton was found to the north towards the mouth of the river, which is associated wi
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6

Daase, Malin, Stig Falk-Petersen, Øystein Varpe, et al. "Timing of reproductive events in the marine copepod Calanus glacialis: a pan-Arctic perspective." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 6 (2013): 871–84. http://dx.doi.org/10.1139/cjfas-2012-0401.

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The timing of reproductive events of Calanus glacialis is closely coupled to the two major marine primary production events in the Arctic: the ice algal and phytoplankton blooms. Reproductive strategies vary between different physical and biological environments of the European and Canadian Arctic. In the Canadian Beaufort Sea and the high Arctic Rijpfjorden on Svalbard, C. glacialis utilized the ice algae bloom to fuel spawning in spring, while growth and development of the new generation was primarily supported by the phytoplankton bloom. In the predominantly ice-free Arctic Kongsfjorden (Sv
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7

Kvernvik, AC, CJM Hoppe, M. Greenacre, et al. "Arctic sea ice algae differ markedly from phytoplankton in their ecophysiological characteristics." Marine Ecology Progress Series 666 (May 20, 2021): 31–55. http://dx.doi.org/10.3354/meps13675.

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Photophysiological and biochemical characteristics were investigated in natural communities of Arctic sea ice algae and phytoplankton to understand their respective responses towards variable irradiance and nutrient regimes. This study revealed large differences in photosynthetic efficiency and capacity between the 2 types of algal assemblages. Sea ice algal assemblages clearly displayed increased photoprotective energy dissipation under the highest daily average irradiance levels (>8 µmol photons m-2 s-1). In contrast, phytoplankton assemblages were generally light-limited within the same
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8

Coupel, P., A. Matsuoka, D. Ruiz-Pino, et al. "Pigment signatures of phytoplankton communities in the Beaufort Sea." Biogeosciences Discussions 11, no. 10 (2014): 14489–530. http://dx.doi.org/10.5194/bgd-11-14489-2014.

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Abstract. Phytoplankton are expected to respond to recent environmental changes of the Arctic Ocean. In terms of bottom-up control, modifying the phytoplankton distribution will ultimately affect the entire food web and carbon export. However, detecting and quantifying change in phytoplankton communities in the Arctic Ocean remains difficult because of the lack of data and the inconsistent identification methods used. Based on pigment and microscopy data sampled in the Beaufort Sea during summer 2009, we optimized the chemotaxonomic tool CHEMTAX for the assessment of phytoplankton community co
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9

Sharov, Andrey N. "Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors." Issues of modern algology (Вопросы современной альгологии), no. 1(25) (2021): 42–49. http://dx.doi.org/10.33624/10.33624/2311-0147-2021-1(21)-42-49.

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Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are
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10

Sharov, Andrey N. "Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors." Issues of modern algology (Вопросы современной альгологии), no. 1(25) (2021): 42–49. http://dx.doi.org/10.33624/10.33624/2311-0147-2021-1(25)-42-49.

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Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are
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11

Sharov, Andrey N. "Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors." Issues of modern algology (Вопросы современной альгологии), no. 1(25) (2021): 42–49. http://dx.doi.org/10.33624/2311-0147-2021-1(21)-42-49.

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Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are
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12

Sharov, Andrey N. "Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors." Issues of modern algology (Вопросы современной альгологии), no. 1(25) (2021): 42–49. http://dx.doi.org/10.33624/2311-0147-2021-1(25)-42-49.

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Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are
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13

Negrete-García, Gabriela, Jessica Y. Luo, Colleen M. Petrik, Manfredi Manizza, and Andrew D. Barton. "Changes in Arctic Ocean plankton community structure and trophic dynamics on seasonal to interannual timescales." Biogeosciences 21, no. 22 (2024): 4951–73. http://dx.doi.org/10.5194/bg-21-4951-2024.

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Abstract. The Arctic Ocean experiences significant seasonal to interannual environmental changes, including in temperature, light, sea ice, and surface nutrient concentrations, that influence the dynamics of marine plankton populations. Here, we use a hindcast simulation (1948–2009) of size-structured Arctic Ocean plankton communities, ocean circulation, and biogeochemical cycles in order to better understand how seasonal to interannual changes in the environment influence phytoplankton physiology, plankton community structure, trophic dynamics, and fish production in the Arctic Ocean. The gro
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14

Coupel, P., A. Matsuoka, D. Ruiz-Pino, et al. "Pigment signatures of phytoplankton communities in the Beaufort Sea." Biogeosciences 12, no. 4 (2015): 991–1006. http://dx.doi.org/10.5194/bg-12-991-2015.

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Abstract. Phytoplankton are expected to respond to recent environmental changes of the Arctic Ocean. In terms of bottom-up control, modifying the phytoplankton distribution will ultimately affect the entire food web and carbon export. However, detecting and quantifying changes in phytoplankton communities in the Arctic Ocean remains difficult because of the lack of data and the inconsistent identification methods used. Based on pigment and microscopy data sampled in the Beaufort Sea during summer 2009, we optimized the chemotaxonomic tool CHEMTAX (CHEMical TAXonomy) for the assessment of phyto
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15

Apollonio, Spencer. "Bioconditioning of Arctic Waters and Stimulation of Arctic Phytoplankton by Sea Ice Algae: Vulnerability to Increased Light." ARCTIC 73, no. 1 (2020): 114–17. http://dx.doi.org/10.14430/arctic70047.

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Arctic sea ice algae produce extracellular organic products, which, as bioconditioners of seawater, may stimulate early summer growth of pelagic, under-sea-ice phytoplankton in low light and low temperature conditions. Sea ice algae are inhibited or decline in numbers if prematurely exposed to high light conditions, thereby reducing their ability to produce bioconditioners. As climate change creates an early reduction or removal of snow and sea ice cover, the result may be a decrease in primary phytoplankton production.
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16

Bates, N. R., and J. T. Mathis. "The Arctic Ocean marine carbon cycle: evaluation of air-sea CO<sub>2</sub> exchanges, ocean acidification impacts and potential feedbacks." Biogeosciences Discussions 6, no. 4 (2009): 6695–747. http://dx.doi.org/10.5194/bgd-6-6695-2009.

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Abstract. At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of −65 to −175 Tg C year−1, contributing 5–14% to the global balance of CO2 sinks and sources. Because of this, the Arctic Ocean is an important influence on the global carbon cycle, with the marine carbon cycle and atmosphere-ocean CO2 exchanges sensitive to Arctic Ocean and global climate change feedbacks. In the near-term, further sea-ice loss and increases in phytoplankton growth rates are expected to increase the uptake of CO2 by Arctic
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17

Cabrol, Jory, Anaïs Fabre, Christian Nozais, et al. "Functional feeding response of Nordic and Arctic krill on natural phytoplankton and zooplankton." Journal of Plankton Research 42, no. 2 (2020): 239–52. http://dx.doi.org/10.1093/plankt/fbaa012.

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Abstract Krill species play a pivotal role in energetic transfer from lower to upper trophic levels. However, functional feeding responses, which determine how food availability influences ingestion rates, are still not well defined for northern krill species. Here, we estimated and compared the functional feeding responses on natural communities of phytoplankton and mesozooplankton of two coexisting species, Meganyctiphanes norvegica and Thysanoessa raschii. We tested the influence of the presence of phytoplankton on the ingestion rate and the selectivity of both krill species when feeding on
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18

Park, Ki-Tae, Sehyun Jang, Kitack Lee, et al. "Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms." Atmospheric Chemistry and Physics 17, no. 15 (2017): 9665–75. http://dx.doi.org/10.5194/acp-17-9665-2017.

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Abstract. The connection between marine biogenic dimethyl sulfide (DMS) and the formation of aerosol particles in the Arctic atmosphere was evaluated by analyzing atmospheric DMS mixing ratio, aerosol particle size distribution and aerosol chemical composition data that were concurrently collected at Ny-Ålesund, Svalbard (78.5° N, 11.8° E), during April and May 2015. Measurements of aerosol sulfur (S) compounds showed distinct patterns during periods of Arctic haze (April) and phytoplankton blooms (May). Specifically, during the phytoplankton bloom period the contribution of DMS-derived SO42−
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19

Lewis, K. M., G. L. van Dijken, and K. R. Arrigo. "Changes in phytoplankton concentration now drive increased Arctic Ocean primary production." Science 369, no. 6500 (2020): 198–202. http://dx.doi.org/10.1126/science.aay8380.

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Historically, sea ice loss in the Arctic Ocean has promoted increased phytoplankton primary production because of the greater open water area and a longer growing season. However, debate remains about whether primary production will continue to rise should sea ice decline further. Using an ocean color algorithm parameterized for the Arctic Ocean, we show that primary production increased by 57% between 1998 and 2018. Surprisingly, whereas increases were due to widespread sea ice loss during the first decade, the subsequent rise in primary production was driven primarily by increased phytoplank
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20

Wang, S., D. Bailey, K. Lindsay, J. K. Moore, and M. Holland. "Impact of sea ice on the marine iron cycle and phytoplankton productivity." Biogeosciences 11, no. 17 (2014): 4713–31. http://dx.doi.org/10.5194/bg-11-4713-2014.

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Abstract. Iron is a key nutrient for phytoplankton growth in the surface ocean. At high latitudes, the iron cycle is closely related to the dynamics of sea ice. In recent decades, Arctic sea ice cover has been declining rapidly and Antarctic sea ice has exhibited large regional trends. A significant reduction of sea ice in both hemispheres is projected in future climate scenarios. In order to adequately study the effect of sea ice on the polar iron cycle, sea ice bearing iron was incorporated in the Community Earth System Model (CESM). Sea ice acts as a reservoir for iron during winter and rel
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21

Wang, S., D. Bailey, K. Lindsay, K. Moore, and M. Holland. "Impacts of sea ice on the marine iron cycle and phytoplankton productivity." Biogeosciences Discussions 11, no. 2 (2014): 2383–418. http://dx.doi.org/10.5194/bgd-11-2383-2014.

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Abstract. Iron is a key nutrient for phytoplankton growth in the surface ocean. At high latitudes, the iron cycle is closely related to sea ice. In recent decades, Arctic sea ice cover has been declining rapidly and Antarctic sea ice has exhibited large regional trends. A significant reduction of sea ice in both hemispheres is projected in future climate scenarios. To study impacts of sea ice on the iron cycle, iron sequestration in ice is incorporated to the Biogeochemical Elemental Cycling (BEC) model. Sea ice acts as a reservoir of iron during winter and releases iron to the surface ocean i
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22

Vidussi, Francesca, Suzanne Roy, Connie Lovejoy, et al. "Spatial and temporal variability of the phytoplankton community structure in the North Water Polynya, investigated using pigment biomarkers." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 11 (2004): 2038–52. http://dx.doi.org/10.1139/f04-152.

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Phytoplankton taxonomic pigments were measured by high-performance liquid chromatography (HPLC) during a 3-month survey (April–June 1998) in the North Water (NOW) Polynya (Canadian Arctic) to investigate changes in phytoplankton biomass and composition and the physical–chemical factors that influence these changes. A phytoplankton bloom with high chlorophyll a (Chl a) concentrations (up to 17.45 mg·m–3 at 15 m) occurred in mid-May along the Greenland coast in the southeastern part of the NOW Polynya. The initiation of the phytoplankton bloom was linked to shallow mixed-layer depths. The contri
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23

Choe, Keyseok, Misun Yun, Sanghoon Park, et al. "Spatial Patterns of Macromolecular Composition of Phytoplankton in the Arctic Ocean." Water 13, no. 18 (2021): 2495. http://dx.doi.org/10.3390/w13182495.

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The macromolecular concentrations and compositions of phytoplankton are crucial for the growth or nutritional structure of higher trophic levels through the food web in the ecosystem. To understand variations in macromolecular contents of phytoplankton, we investigated the macromolecular components of phytoplankton and analyzed their spatial pattern on the Chukchi Shelf and the Canada Basin. The carbohydrate (CHO) concentrations on the Chukchi Shelf and the Canada Basin were 50.4–480.8 μg L−1 and 35.2–90.1 μg L−1, whereas the lipids (LIP) concentrations were 23.7–330.5 μg L−1 and 11.7–65.6 μg
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24

Gogorev, R. M., and N. I. Samsonov. "The genus Chaetoceros (Bacillariophyta) in Arctic and Atarctic." Novosti sistematiki nizshikh rastenii 50 (2016): 56–111. http://dx.doi.org/10.31111/nsnr/2016.50.56.

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A floristic review of the genus Chaetoceros from Arctic and Antarctic waters is undertaken. Taxonomic composition of the Chaetoceros from the Russian Arctic seas, as well as from some regions of the Antarctic was investigated in both water column and sea ice. The genus is rather diverse in both polar regions: 55 species in Arctic and 34 ones in Antarctic. The regions differ in total number of species, number of species belonging to the subgenera Chaetoceros and Hyalochaete and to different sections. Species of the genus are often dominant and the most abundant in Arctic phytoplankton. However,
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Joli, Nathalie, Thomas Lacour, Nastasia J. Freyria, Sarah-Jeanne Royer, Marcel Babin, and Connie Lovejoy. "Two versions of short-term phytoplankton ecophysiology and taxonomic assemblages in the Arctic Ocean’s North Water (Canada, Greenland)." Journal of Plankton Research 43, no. 2 (2021): 126–41. http://dx.doi.org/10.1093/plankt/fbab009.

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Abstract Photosynthetic performance in open marine waters is determined by how well phytoplankton species are adapted to their immediate environment and available light. Although there is light for 24 h a day during the Arctic summer, little is known about short-term (h) temporal variability of phytoplankton photosynthetic performance in Arctic waters. To address this, we sampled the North Water (76.5°N) every 4 h over 24 h at two stations on the East and West sides that are influenced by different water masses and current conditions. We specifically investigated phytoplankton pigments, the xa
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26

Coupel, P., H. Y. Jin, D. Ruiz-Pino, et al. "Phytoplankton distribution in the Western Arctic Ocean during a summer of exceptional ice retreat." Biogeosciences Discussions 8, no. 4 (2011): 6919–70. http://dx.doi.org/10.5194/bgd-8-6919-2011.

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Abstract. A drastic ice decline in the Arctic Ocean, triggered by global warming, could generate rapid changes in the upper ocean layers. The ice retreat is particularly intense over the Canadian Basin where large ice free areas were observed since 2007. The CHINARE 2008 expedition was conducted in the Western Arctic (WA) ocean during a year of exceptional ice retreat (August–September 2008). This study investigates whether a significant reorganization of the primary producers in terms of species, biomass and productivity has to be observed in the WA as a result of the intense ice melting. Bot
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27

Hussherr, Rachel, Maurice Levasseur, Martine Lizotte, et al. "Impact of ocean acidification on Arctic phytoplankton blooms and dimethyl sulfide concentration under simulated ice-free and under-ice conditions." Biogeosciences 14, no. 9 (2017): 2407–27. http://dx.doi.org/10.5194/bg-14-2407-2017.

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Abstract. In an experimental assessment of the potential impact of Arctic Ocean acidification on seasonal phytoplankton blooms and associated dimethyl sulfide (DMS) dynamics, we incubated water from Baffin Bay under conditions representing an acidified Arctic Ocean. Using two light regimes simulating under-ice or subsurface chlorophyll maxima (low light; low PAR and no UVB) and ice-free (high light; high PAR + UVA + UVB) conditions, water collected at 38 m was exposed over 9 days to 6 levels of decreasing pH from 8.1 to 7.2. A phytoplankton bloom dominated by the centric diatoms Chaetoceros sp
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28

Arrigo, K. R., D. K. Perovich, R. S. Pickart, et al. "Massive Phytoplankton Blooms Under Arctic Sea Ice." Science 336, no. 6087 (2012): 1408. http://dx.doi.org/10.1126/science.1215065.

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Ardyna, Mathieu, and Kevin Robert Arrigo. "Phytoplankton dynamics in a changing Arctic Ocean." Nature Climate Change 10, no. 10 (2020): 892–903. http://dx.doi.org/10.1038/s41558-020-0905-y.

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Efimova, Tatiana, Tatiana Churilova, Elena Skorokhod, et al. "Light Absorption by Optically Active Components in the Arctic Region (August 2020) and the Possibility of Application to Satellite Products for Water Quality Assessment." Remote Sensing 15, no. 17 (2023): 4346. http://dx.doi.org/10.3390/rs15174346.

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In August 2020, during the 80th cruise of the R/V “Akademik Mstislav Keldysh”, the chlorophyll a concentration (Chl-a) and spectral coefficients of light absorption by phytoplankton pigments, non-algal particles (NAP) and colored dissolved organic matter (CDOM) were measured in the Norwegian Sea, the Barents Sea and the adjacent area of the Arctic Ocean. It was shown that the spatial distribution of the three light-absorbing components in the explored Arctic region was non-homogenous. It was revealed that CDOM contributed largely to the total non-water light absorption (atot(λ) = aph(λ) + aNAP
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Pfaff, Sigrid, Lydia Gustavs, Annett Reichardt, et al. "Ecophysiological plasticity in the Arctic phytoplankton species Phaeocystis pouchetii (Prymnesiophyceae, Haptophyta)." Algological Studies 151-152, no. 1 (2016): 87–102. http://dx.doi.org/10.1127/algol_stud/2016/0260.

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32

Pautova, Larisa A., Vladimir A. Silkin, Marina D. Kravchishina, Valeriy G. Yakubenko, and Anna L. Chultsova. "Summer phytoplankton of the northern Barents Sea (75–80º N)." Hydrosphere Еcology (Экология гидросферы), no. 2(4) (2019): 8–19. http://dx.doi.org/10.33624/2587-9367-2019-2(4)-8-19.

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The structure of the summer planktonic communities of the Northern part of the Barents sea in the first half of August 2017 were studied. In the sea-ice melting area, the average phytoplankton biomass producing upper 50-meter layer of water reached values levels of eutrophic waters (up to 2.1 g/m3). Phytoplankton was presented by diatoms of the genera Thalassiosira and Eucampia. Maximum biomass recorded at depths of 22–52 m, the absolute maximum biomass community (5,0 g/m3) marked on the horizon of 45 m (station 5558), located at the outlet of the deep trench Franz Victoria near the West coast
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Bates, N. R., and J. T. Mathis. "The Arctic Ocean marine carbon cycle: evaluation of air-sea CO<sub>2</sub> exchanges, ocean acidification impacts and potential feedbacks." Biogeosciences 6, no. 11 (2009): 2433–59. http://dx.doi.org/10.5194/bg-6-2433-2009.

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Abstract. At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of −66 to −199 Tg C year−1 (1012 g C), contributing 5–14% to the global balance of CO2 sinks and sources. Because of this, the Arctic Ocean has an important influence on the global carbon cycle, with the marine carbon cycle and atmosphere-ocean CO2 exchanges sensitive to Arctic Ocean and global climate change feedbacks. In the near-term, further sea-ice loss and increases in phytoplankton growth rates are expected to increase the uptake of C
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34

Balzano, S., P. Gourvil, R. Siano, et al. "Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer." Biogeosciences 9, no. 11 (2012): 4553–71. http://dx.doi.org/10.5194/bg-9-4553-2012.

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Abstract. During the MALINA cruise (summer 2009), an extensive effort was undertaken to isolate phytoplankton strains from the northeast (NE) Pacific Ocean, the Bering Strait, the Chukchi Sea, and the Beaufort Sea. In order to characterise the main photosynthetic microorganisms occurring in the Arctic during the summer season, strains were isolated by flow cytometry sorting (FCS) and single cell pipetting before or after phytoplankton enrichment of seawater samples. Strains were isolated both onboard and back in the laboratory and cultured at 4 °C under light/dark conditions. Overall, we isola
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Ickes, Luisa, Grace C. E. Porter, Robert Wagner, et al. "The ice-nucleating activity of Arctic sea surface microlayer samples and marine algal cultures." Atmospheric Chemistry and Physics 20, no. 18 (2020): 11089–117. http://dx.doi.org/10.5194/acp-20-11089-2020.

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Abstract. In recent years, sea spray as well as the biological material it contains has received increased attention as a source of ice-nucleating particles (INPs). Such INPs may play a role in remote marine regions, where other sources of INPs are scarce or absent. In the Arctic, these INPs can influence water–ice partitioning in low-level clouds and thereby the cloud lifetime, with consequences for the surface energy budget, sea ice formation and melt, and climate. Marine aerosol is of a diverse nature, so identifying sources of INPs is challenging. One fraction of marine bioaerosol (phytopl
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Olivier, Frédéric, Blandine Gaillard, Julien Thébault, et al. "Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2181 (2020): 20190353. http://dx.doi.org/10.1098/rsta.2019.0353.

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Climate changes in the Arctic may weaken the currently tight pelagic-benthic coupling. In response to decreasing sea ice cover, arctic marine systems are expected to shift from a ‘sea-ice algae–benthos' to a ‘phytoplankton-zooplankton’ dominance. We used mollusc shells as bioarchives and fatty acid trophic markers to estimate the effects of the reduction of sea ice cover on the food exported to the seafloor. Bathyal bivalve Astarte moerchi living at 600 m depth in northern Baffin Bay reveals a clear shift in growth variations and Ba/Ca ratios since the late 1970s, which we relate to a change i
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KAHRU, M., V. BROTAS, M. MANZANO-SARABIA, and B. G. MITCHELL. "Are phytoplankton blooms occurring earlier in the Arctic?" Global Change Biology 17, no. 4 (2010): 1733–39. http://dx.doi.org/10.1111/j.1365-2486.2010.02312.x.

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Kauko, Hanna M., Alexey K. Pavlov, Geir Johnsen, Mats A. Granskog, Ilka Peeken, and Philipp Assmy. "Photoacclimation State of an Arctic Underice Phytoplankton Bloom." Journal of Geophysical Research: Oceans 124, no. 3 (2019): 1750–62. http://dx.doi.org/10.1029/2018jc014777.

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Rao, D. V. Subba. "Species specific primary production measurements of Arctic phytoplankton." British Phycological Journal 23, no. 3 (1988): 273–82. http://dx.doi.org/10.1080/00071618800650311.

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Bélanger, S., M. Babin, and J. E. Tremblay. "Increasing cloudiness in Arctic damps the increase in phytoplankton primary production due to sea ice receding." Biogeosciences Discussions 9, no. 10 (2012): 13987–4012. http://dx.doi.org/10.5194/bgd-9-13987-2012.

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Abstract. The Arctic Ocean and its marginal seas are among the marine regions most affected by climate change. Here we present the results of a diagnostic model used to elucidate the main drivers of primary production (PP) trends over the 1998–2010 period at pan-Arctic and local (i.e. 9.28 km resolution) scales. Photosynthetically active radiation (PAR) above and below the sea surface was estimated using precomputed look-up tables of spectral irradiance and satellite-derived cloud optical thickness and cloud fraction parameters from the International Satellite Cloud Climatology Project (ISCCP)
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Müller, Oliver, Lena Seuthe, Bernadette Pree, Gunnar Bratbak, Aud Larsen, and Maria Lund Paulsen. "How Microbial Food Web Interactions Shape the Arctic Ocean Bacterial Community Revealed by Size Fractionation Experiments." Microorganisms 9, no. 11 (2021): 2378. http://dx.doi.org/10.3390/microorganisms9112378.

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In the Arctic, seasonal changes are substantial, and as a result, the marine bacterial community composition and functions differ greatly between the dark winter and light-intensive summer. While light availability is, overall, the external driver of the seasonal changes, several internal biological interactions structure the bacterial community during shorter timescales. These include specific phytoplankton–bacteria associations, viral infections and other top-down controls. Here, we uncover these microbial interactions and their effects on the bacterial community composition during a full an
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Kudryavtseva, Elena, Marina Kravchishina, Larisa Pautova, et al. "Sea Ice as a Factor of Primary Production in the European Arctic: Phytoplankton Size Classes and Carbon Fluxes." Journal of Marine Science and Engineering 11, no. 11 (2023): 2131. http://dx.doi.org/10.3390/jmse11112131.

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The seasonally ice-covered marine region of the European Arctic has experienced warming and sea ice loss in the last two decades. During expeditions in August 2020 and 2021, new data on size-fractioned primary production (PP), chlorophyll a concentration, phytoplankton biomass and composition and carbon fixation rates in the dark were obtained in the marginal ice zone (MIZ) of the Barents Sea, Nansen Basin and Greenland Sea to better understand the response of Arctic ecosystems to ongoing climate changes. Four different situations were observed in the study region: (i) a bloom of the large-cel
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Popova, E. E., A. Yool, A. C. Coward, et al. "Control of primary production in the Arctic by nutrients and light: insights from a high resolution ocean general circulation model." Biogeosciences Discussions 7, no. 4 (2010): 5557–620. http://dx.doi.org/10.5194/bgd-7-5557-2010.

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Abstract. Until recently, the Arctic Basin was generally considered to be a low productivity area and was afforded little attention in global- or even basin-scale ecosystem modelling studies. Due to anthropogenic climate change however, the sea ice cover of the Arctic Ocean is undergoing an unexpectedly fast retreat, exposing increasingly large areas of the basin to sunlight. As indicated by existing Arctic phenomena such as ice-edge blooms, this decline in sea-ice is liable to encourage pronounced growth of phytoplankton in summer and poses pressing questions concerning the future of Arctic e
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Popova, E. E., A. Yool, A. C. Coward, et al. "Control of primary production in the Arctic by nutrients and light: insights from a high resolution ocean general circulation model." Biogeosciences 7, no. 11 (2010): 3569–91. http://dx.doi.org/10.5194/bg-7-3569-2010.

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Abstract. Until recently, the Arctic Basin was generally considered to be a low productivity area and was afforded little attention in global- or even basin-scale ecosystem modelling studies. Due to anthropogenic climate change however, the sea ice cover of the Arctic Ocean is undergoing an unexpectedly fast retreat, exposing increasingly large areas of the basin to sunlight. As indicated by existing Arctic phenomena such as ice-edge blooms, this decline in sea-ice is liable to encourage pronounced growth of phytoplankton in summer and poses pressing questions concerning the future of Arctic e
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Balzano, S., P. Gourvil, R. Siano, et al. "Diversity of cultured photosynthetic flagellates in the North East Pacific and Arctic Oceans in summer." Biogeosciences Discussions 9, no. 6 (2012): 6219–59. http://dx.doi.org/10.5194/bgd-9-6219-2012.

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Abstract. During the MALINA cruise (summer 2009) an extensive effort was undertaken to isolate phytoplankton strains from the North East (NE) Pacific Ocean, the Bering Strait, and the Beaufort Sea. Strains were isolated by flow cytometry sorting (FCS) and pipetting before or after phytoplankton enrichment of seawater samples. Strains were isolated both onboard and back in the laboratory and cultured at 4 °C under light/dark conditions. Overall, we isolated and characterised by light microscopy and 18S rRNA gene sequencing 104 strains of photosynthetic flagellates which grouped into 21 genotype
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McMinn, A., and E. N. Hegseth. "Quantum yield and photosynthetic parameters of marine microalgae from the southern Arctic Ocean, Svalbard." Journal of the Marine Biological Association of the United Kingdom 84, no. 5 (2004): 865–71. http://dx.doi.org/10.1017/s0025315404010112h.

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The quantum yield and photosynthetic parameters of phytoplankton and sea ice microalgal communities were assessed from the Arctic Ocean and fjords of northern Svalbard. The phytoplankton community in Fram Strait was dominated by Phaeocystis while on Norskebanken it was dominated by diatoms. The quantum yield showed maximum values of 0·64 at 20–40 m below the surface and were consistent with nutrient replete waters elsewhere.Sea ice infiltration communities were widespread and dominated by Phaeocystis. This is the first record of an Arctic infiltration ice community. Quantum yields were relativ
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Brussaard, C. P. D., A. A. M. Noordeloos, H. Witte, et al. "Arctic microbial community dynamics influenced by elevated CO<sub>2</sub> levels." Biogeosciences 10, no. 2 (2013): 719–31. http://dx.doi.org/10.5194/bg-10-719-2013.

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Abstract. The Arctic Ocean ecosystem is particularly vulnerable to ocean acidification (OA) related alterations due to the relatively high CO2 solubility and low carbonate saturation states of its cold surface waters. Thus far, however, there is only little known about the consequences of OA on the base of the food web. In a mesocosm CO2-enrichment experiment (overall CO2 levels ranged from ~ 180 to 1100 μatm) in Kongsfjorden off Svalbard, we studied the consequences of OA on a natural pelagic microbial community. OA distinctly affected the composition and growth of the Arctic phytoplankton co
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Bélanger, S., M. Babin, and J. É. Tremblay. "Increasing cloudiness in Arctic damps the increase in phytoplankton primary production due to sea ice receding." Biogeosciences 10, no. 6 (2013): 4087–101. http://dx.doi.org/10.5194/bg-10-4087-2013.

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Abstract. The Arctic Ocean and its marginal seas are among the marine regions most affected by climate change. Here we present the results of a diagnostic model used to assess the primary production (PP) trends over the 1998–2010 period at pan-Arctic, regional and local (i.e. 9.28 km resolution) scales. Photosynthetically active radiation (PAR) above and below the sea surface was estimated using precomputed look-up tables of spectral irradiance, taking as input satellite-derived cloud optical thickness and cloud fraction parameters from the International Satellite Cloud Climatology Project (IS
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49

Le Fouest, V., M. Babin, and J. É. Tremblay. "The fate of riverine nutrients on Arctic shelves." Biogeosciences 10, no. 6 (2013): 3661–77. http://dx.doi.org/10.5194/bg-10-3661-2013.

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Abstract. Present and future levels of primary production (PP) in the Arctic Ocean (AO) depend on nutrient inputs to the photic zone via vertical mixing, upwelling and external sources. In this regard, the importance of horizontal river supply relative to oceanic processes is poorly constrained at the pan-Arctic scale. We compiled extensive historical (1954–2012) data on discharge and nutrient concentrations to estimate fluxes of nitrate, soluble reactive phosphate (SRP), silicate, dissolved organic carbon (DOC), dissolved organic nitrogen (DON), particulate organic nitrogen (PON) and particul
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Pautova, Larisa, Vladimir Silkin, Marina Kravchishina, et al. "Phytoplankton of the High-Latitude Arctic: Intensive Growth Large Diatoms Porosira glacialis in the Nansen Basin." Journal of Marine Science and Engineering 11, no. 2 (2023): 453. http://dx.doi.org/10.3390/jmse11020453.

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In August 2020, during a dramatical summer retreat of sea ice in the Nansen Basin, a study of phytoplankton was conducted on the transect from two northern stations in the marginal ice zone (MIZ) (north of 83° N m and east of 38° E) through the open water to the southern station located in the Franz Victoria Trench. The presence of melted polar surface waters (mPSW), polar surface waters (PSW), and Atlantic waters (AW) were characteristic of the MIZ. There are only two water masses in open water, namely PSW and AW, at the southernmost station; the contribution of AW was minimal. In the MIZ, fi
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