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The polar night shift: seasonal dynamics and drivers of Arctic Ocean microbiomes revealed by autonomous sampling

  • 1.

    Cavicchioli R, Ripple WJ, Timmis KN, Azam F, Bakken LR, Baylis M, et al. Scientists’ warning to humanity: microorganisms and climate change. Nat Rev Microbiol. 2019;17:569–86.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 2.

    Bunse C, Pinhassi J. Marine Bacterioplankton seasonal succession dynamics. Trends Microbiol. 2017;25:494–505.

    CAS 
    PubMed 

    Google Scholar 

  • 3.

    Buttigieg PL, Fadeev E, Bienhold C, Hehemann L, Offre P, Boetius A. Marine microbes in 4D-using time series observation to assess the dynamics of the ocean microbiome and its links to ocean health. Curr Opin Microbiol. 2018;43:169–85.

    PubMed 

    Google Scholar 

  • 4.

    Gilbert JA, Steele JA, Caporaso JG, Steinbrück L, Reeder J, Temperton B, et al. Defining seasonal marine microbial community dynamics. ISME J. 2012;6:298–308.

    CAS 
    PubMed 

    Google Scholar 

  • 5.

    Cram JA, Chow C-ET, Sachdeva R, Needham DM, Parada AE, Steele JA, et al. Seasonal and interannual variability of the marine bacterioplankton community throughout the water column over ten years. ISME J. 2015;9:563–80.

    PubMed 

    Google Scholar 

  • 6.

    Auladell A, Barberán A, Logares R, Garcés E, Gasol JM, Ferrera I. Seasonal niche differentiation among closely related marine bacteria. ISME J. 2021.

  • 7.

    Alonso-Saez L, Sanchez O, Gasol JM, Balague V, Pedros-Alio C. Winter-to-summer changes in the composition and single-cell activity of near-surface Arctic prokaryotes. Environ Microbiol. 2008;10:2444–54.

    CAS 
    PubMed 

    Google Scholar 

  • 8.

    Rokkan Iversen K, Seuthe L. Seasonal microbial processes in a high-latitude fjord (Kongsfjorden, Svalbard): I. Heterotrophic bacteria, picoplankton and nanoflagellates. Polar Biol. 2011;34:731–49.

    Google Scholar 

  • 9.

    Grzymski JJ, Riesenfeld CS, Williams TJ, Dussaq AM, Ducklow H, Erickson M, et al. A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters. ISME J. 2012;6:1901–15.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 10.

    Pedrós-Alió C, Potvin M, Lovejoy C. Diversity of planktonic microorganisms in the Arctic Ocean. Prog Oceanogr. 2015;139:233–43.

    Google Scholar 

  • 11.

    Wilson B, Müller O, Nordmann E-L, Seuthe L, Bratbak G, Øvreås L. Changes in marine prokaryote composition with season and depth over an Arctic polar year. Front Mar Sci. 2017;4:95.

    Google Scholar 

  • 12.

    Sandaa R-A, E Storesund J, Olesin E, Lund Paulsen M, Larsen A, Bratbak G, et al. Seasonality drives microbial community structure, shaping both eukaryotic and prokaryotic host−viral relationships in an Arctic marine ecosystem. Viruses. 2018;10:715.

    CAS 
    PubMed Central 

    Google Scholar 

  • 13.

    Williams TJ, Long E, Evans F, Demaere MZ, Lauro FM, Raftery MJ, et al. A metaproteomic assessment of winter and summer bacterioplankton from Antarctic Peninsula coastal surface waters. ISME J. 2012;6:1883–900.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 14.

    Freyria NJ, Joli N, Lovejoy C. A decadal perspective on north water microbial eukaryotes as Arctic Ocean sentinels. Sci Rep. 2021;11:8413.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 15.

    Assmy P, Fernández-Méndez M, Duarte P, Meyer A, Randelhoff A, Mundy CJ, et al. Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice. Sci Rep. 2017;7:40850.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 16.

    Hegseth EN, Assmy P, Wiktor JM, Wiktor J, Kristiansen S, Leu E, et al. Phytoplankton seasonal dynamics in Kongsfjorden, Svalbard and the adjacent shelf. In: Hop H, Wiencke C (eds). The ecosystem of Kongsfjorden, Svalbard. 2019. Springer International Publishing, Cham, pp 173–227.

  • 17.

    Liu Y, Blain S, Crispi O, Rembauville M, Obernosterer I. Seasonal dynamics of prokaryotes and their associations with diatoms in the Southern Ocean as revealed by an autonomous sampler. Environ Microbiol. 2020;22:3968–84.

    CAS 
    PubMed 

    Google Scholar 

  • 18.

    Randelhoff A, Lacour L, Marec C, Leymarie E, Lagunas J, Xing X, et al. Arctic mid-winter phytoplankton growth revealed by autonomous profilers. Sci Adv. 2020;6:eabc2678.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 19.

    Randelhoff A, Reigstad M, Chierici M, Sundfjord A, Ivanov V, Cape M, et al. Seasonality of the physical and biogeochemical hydrography in the inflow to the Arctic Ocean through Fram Strait. Front Mar Sci. 2018;5:224.

    Google Scholar 

  • 20.

    Berge J, Renaud PE, Darnis G, Cottier F, Last K, Gabrielsen TM, et al. In the dark: a review of ecosystem processes during the Arctic polar night. Prog Oceanogr. 2015;139:258–71.

    Google Scholar 

  • 21.

    Müller O, Wilson B, Paulsen ML, Rumińska A, Armo HR, Bratbak G, et al. Spatiotemporal dynamics of ammonia-oxidizing thaumarchaeota in distinct arctic water masses. Front Microbiol. 2018;9:24.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 22.

    Johnsen G, Leu E, Gradinger R. Marine micro- and macroalgae in the polar night. In: Berge J, Johnsen G, Cohen JH (eds). Polar night marine ecology: life and light in the dead of night. 2020. Springer International Publishing, Cham, pp 67–112.

  • 23.

    Vader A, Marquardt M, Meshram A, Gabrielsen T. Key Arctic phototrophs are widespread in the polar night. Polar Biol. 2014;38:13–21.

    Google Scholar 

  • 24.

    Leu E, Mundy CJ, Assmy P, Campbell K, Gabrielsen TM, Gosselin M, et al. Arctic spring awakening—steering principles behind the phenology of vernal ice algal blooms. Prog Oceanogr. 2015;139:151–70.

    Google Scholar 

  • 25.

    Soltwedel T, Bauerfeind E, Bergmann M, Bracher A, Budaeva N, Busch K, et al. Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN. Ecol Indic. 2016;65:89–102.

    Google Scholar 

  • 26.

    Nöthig E-M, Ramondenc S, Haas A, Hehemann L, Walter A, Bracher A, et al. Summertime chlorophyll a and particulate organic carbon standing stocks in surface waters of the Fram Strait and the Arctic Ocean (1991–2015). Front Mar Sci. 2020;7:350.

    Google Scholar 

  • 27.

    Nöthig E-M, Bracher A, Engel A, Metfies K, Niehoff B, Peeken I, et al. Summertime plankton ecology in Fram Strait—a compilation of long- and short-term observations. Polar Res. 2015;34:23349.

    Google Scholar 

  • 28.

    Engel A, Bracher A, Dinter T, Endres S, Grosse J, Metfies K, et al. Inter-annual variability of organic carbon concentration in the Eastern Fram Strait during summer (2009-17). Front Mar Sci. 2019;6:187.

    Google Scholar 

  • 29.

    Fadeev E, Salter I, Schourup-Kristensen V, Nöthig E-M, Metfies K, Engel A, et al. Microbial communities in the east and west Fram Strait during sea ice melting season. Front Mar Sci. 2018;5:429.

    Google Scholar 

  • 30.

    von Jackowski A, Grosse J, Nöthig E-M, Engel A. Dynamics of organic matter and bacterial activity in the Fram Strait during summer and autumn. Philos Trans R Soc Math Phys Eng Sci. 2020;378:20190366.

    Google Scholar 

  • 31.

    Metfies K, Bauerfeind E, Wolf C, Sprong P, Frickenhaus S, Kaleschke L, et al. Protist communities in moored long-term sediment traps (Fram Strait, Arctic)–preservation with mercury chloride allows for PCR-based molecular genetic analyses. Front Mar Sci. 2017;4:301.

    Google Scholar 

  • 32.

    Cardozo-Mino MG, Fadeev E, Salman-Carvalho V, Boetius A. Spatial distribution of Arctic bacterioplankton abundance is linked to distinct water masses and summertime phytoplankton bloom dynamics (Fram Strait, 79°N). Front Microbiol. 2021;12:658803.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 33.

    Richter ME, von Appen W-J, Wekerle C. Does the East Greenland Current exist in the northern Fram Strait? Ocean Sci. 2018;14:1147–65.

    CAS 

    Google Scholar 

  • 34.

    Tuerena RE, Hopkins J, Buchanan PJ, Ganeshram RS, Norman L, von Appen W-J, et al. An Arctic strait of two halves: the changing dynamics of nutrient uptake and limitation across the Fram Strait. Glob Biogeochem Cycles. 2021;35:e2021GB006961.

  • 35.

    Polyakov IV, Pnyushkov AV, Alkire MB, Ashik IM, Baumann TM, Carmack EC, et al. Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean. Science. 2017;356:285–91.

    CAS 
    PubMed 

    Google Scholar 

  • 36.

    Lannuzel D, Tedesco L, van Leeuwe M, Campbell K, Flores H, Delille B, et al. The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems. Nat Clim Change. 2020;10:983–92.

    Google Scholar 

  • 37.

    Carter-Gates M, Balestreri C, Thorpe SE, Cottier F, Baylay A, Bibby TS, et al. Implications of increasing Atlantic influence for Arctic microbial community structure. Sci Rep. 2020;10:19262.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 38.

    Parada AE, Needham DM, Fuhrman JA. Every base matters: assessing small subunit rRNA primers for marine microbiomes with mock communities, time series and global field samples. Environ Microbiol. 2016;18:1403–14.

    CAS 
    PubMed 

    Google Scholar 

  • 39.

    Martin M. Cutadapt removes adapter sequences from high-throughput sequencing reads. EMBnet.journal 2011;17:10–2.

    Google Scholar 

  • 40.

    Callahan BJ, McMurdie PJ, Rosen MJ, Han AW, Johnson AJA, Holmes SP. DADA2: High-resolution sample inference from Illumina amplicon data. Nat Methods. 2016;13:581–3.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 41.

    Quast C, Pruesse E, Yilmaz P, Gerken J, Schweer T, Yarza P, et al. The SILVA ribosomal RNA gene database project: improved data processing and web-based tools. Nucleic Acids Res. 2013;41:D590–596.

    CAS 
    PubMed 

    Google Scholar 

  • 42.

    Guillou L, Bachar D, Audic S, Bass D, Berney C, Bittner L, et al. The Protist Ribosomal Reference database (PR2): a catalog of unicellular eukaryote Small Sub-Unit rRNA sequences with curated taxonomy. Nucleic Acids Res. 2013;41:D597–D604.

    CAS 
    PubMed 

    Google Scholar 

  • 43.

    Hsieh TC, Ma KH, Chao A. iNEXT: an R package for rarefaction and extrapolation of species diversity (Hill numbers). Methods Ecol Evol. 2016;7:1451–6.

    Google Scholar 

  • 44.

    Wickham H, Averick M, Bryan J, Chang W, McGowan LD, François R, et al. Welcome to the Tidyverse. J Open Source Softw. 2019;4:1686.

    Google Scholar 

  • 45.

    McMurdie PJ, Holmes S. phyloseq: an R package for reproducible interactive analysis and graphics of microbiome census data. PLOS ONE. 2013;8:e61217.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 46.

    Andersen KSS, Kirkegaard RH, Karst SM, Albertsen M. ampvis2: an R package to analyse and visualise 16S rRNA amplicon data. bioRxiv. 2018.

  • 47.

    Lawlor J. PNWColors: A Pacific Northwest inspired R color palette package. 2020 https://github.com/jakelawlor/PNWColors.

  • 48.

    von Appen W-J, Schauer U, Hattermann T, Beszczynska-Möller A. Seasonal cycle of mesoscale instability of the west Spitsbergen Current. J Phys Oceanogr. 2016;46:1231–54.

    Google Scholar 

  • 49.

    Wekerle C, Wang Q, von Appen W-J, Danilov S, Schourup-Kristensen V, Jung T. Eddy-resolving simulation of the Atlantic water circulation in the Fram Strait with focus on the seasonal cycle. J Geophys Res Oceans. 2017;122:8385–405.

    Google Scholar 

  • 50.

    Giner CR, Balagué V, Krabberød AK, Ferrera I, Reñé A, Garcés E, et al. Quantifying long-term recurrence in planktonic microbial eukaryotes. Mol Ecol. 2019;28:923–35.

    PubMed 

    Google Scholar 

  • 51.

    Royo-Llonch M, Sánchez P, Ruiz-González C, Salazar G, Pedrós-Alió C, Sebastián M, et al. Compendium of 530 metagenome-assembled bacterial and archaeal genomes from the polar Arctic Ocean. Nat. Microbiol. 2021;6:1561–74.

  • 52.

    Priest T, Orellana LH, Huettel B, Fuchs BM, Amann R. Microbial metagenome-assembled genomes of the Fram Strait from short and long read sequencing platforms. PeerJ. 2021;9:e11721.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 53.

    Sunagawa S, Coelho LP, Chaffron S, Kultima JR, Labadie K, Salazar G, et al. Structure and function of the global ocean microbiome. Science. 2015;348:1261359.

    PubMed 

    Google Scholar 

  • 54.

    Teeling H, Fuchs BM, Becher D, Klockow C, Gardebrecht A, Bennke CM, et al. Substrate-controlled succession of marine bacterioplankton populations induced by a phytoplankton bloom. Science. 2012;336:608–11.

    CAS 
    PubMed 

    Google Scholar 

  • 55.

    Monier A, Comte J, Babin M, Forest A, Matsuoka A, Lovejoy C. Oceanographic structure drives the assembly processes of microbial eukaryotic communities. ISME J. 2015;9:990–1002.

    CAS 
    PubMed 

    Google Scholar 

  • 56.

    Leeuwe M, van, Tedesco L, Arrigo KR, Assmy P, Campbell K, Meiners KM, et al. Microalgal community structure and primary production in Arctic and Antarctic sea ice: a synthesis. Elem Sci Anth. 2018;6:4.

    Google Scholar 

  • 57.

    Fadeev E, Rogge A, Ramondenc S, Nöthig E-M, Wekerle C, Bienhold C, et al. Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean. Commun Biol. 2021;4:1–13.

    Google Scholar 

  • 58.

    Wasmund N, Göbel J, von Bodungen B. 100-years-changes in the phytoplankton community of Kiel Bight (Baltic Sea). J Mar Syst. 2008;73:300–22.

    Google Scholar 

  • 59.

    Stoecker DK, Lavrentyev PJ. Mixotrophic plankton in the polar seas: a pan-Arctic review. Front Mar Sci. 2018;5:292.

    Google Scholar 

  • 60.

    Lampe V, Nöthig E-M, Schartau M. Spatio-temporal variations in community size structure of Arctic protist plankton in the Fram Strait. Front Mar Sci. 2021;7:579880.

    Google Scholar 

  • 61.

    Brichta M, Nöthig E-M. The role of life cycle stages of diatoms in decoupling carbon and silica cycles in polar regions. In: Proceedings of SCAR Open Science Conference Bremen, Germany. 2004.

  • 62.

    Not F, Siano R, Kooistra WHCF, Simon N, Vaulot D, Probert I. Diversity and ecology of eukaryotic marine phytoplankton. In: Piganeau G (ed). Advances in botanical research. 2012. Academic Press, pp 1–53.

  • 63.

    Raghukumar S. Ecology of the marine protists, the Labyrinthulomycetes (Thraustochytrids and Labyrinthulids). Eur J Protistol. 2002;38:127–45.

    Google Scholar 

  • 64.

    Scholz B, Guillou L, Marano AV, Neuhauser S, Sullivan BK, Karsten U, et al. Zoosporic parasites infecting marine diatoms—a black box that needs to be opened. Fungal Ecol. 2016;19:59–76.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 65.

    Choi DH, Park K-T, An SM, Lee K, Cho J-C, Lee J-H, et al. Pyrosequencing revealed SAR116 clade as dominant dddP-containing bacteria in oligotrophic NW Pacific Ocean. PLOS One. 2015;10:e0116271.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 66.

    Wemheuer B, Wemheuer F, Hollensteiner J, Meyer F-D, Voget S, Daniel R. The green impact: bacterioplankton response toward a phytoplankton spring bloom in the southern North Sea assessed by comparative metagenomic and metatranscriptomic approaches. Front Microbiol. 2015;6:805.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 67.

    Delpech L-M, Vonnahme TR, McGovern M, Gradinger R, Præbel K, Poste A. Terrestrial inputs shape coastal bacterial and archaeal communities in a high Arctic Fjord (Isfjorden, Svalbard). Front Microbiol. 2021;12:614634.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 68.

    Alldredge AL, Gotschalk CC. Direct observations of the mass flocculation of diatom blooms: characteristics, settling velocities and formation of diatom aggregates. Deep Sea Res Part A. Oceanogr Res Pap. 1989;36:159–71.

    CAS 

    Google Scholar 

  • 69.

    Lundholm N, Hansen PJ, Kotaki Y. Effect of pH on growth and domoic acid production by potentially toxic diatoms of the genera Pseudo-nitzschia and Nitzschia. Mar Ecol Prog Ser. 2004;273:1–15.

    CAS 

    Google Scholar 

  • 70.

    Underwood GJC, Michel C, Meisterhans G, Niemi A, Belzile C, Witt M, et al. Organic matter from Arctic sea-ice loss alters bacterial community structure and function. Nat Clim Change. 2019;9:170–6.

    Google Scholar 

  • 71.

    Graham E, Tully BJ. Marine Dadabacteria exhibit genome streamlining and phototrophy-driven niche partitioning. ISME J. 2021;15:1248–56.

  • 72.

    Clarke LJ, Bestley S, Bissett A, Deagle BE. A globally distributed Syndiniales parasite dominates the Southern Ocean micro-eukaryote community near the sea-ice edge. ISME J. 2019;13:734–7.

    CAS 
    PubMed 

    Google Scholar 

  • 73.

    Randelhoff A, Sundfjord A, Reigstad M. Seasonal variability and fluxes of nitrate in the surface waters over the Arctic shelf slope. Geophys Res Lett. 2015;42:3442–9.

    CAS 

    Google Scholar 

  • 74.

    García FC, Alonso-Sáez L, Morán XAG, López-Urrutia Á. Seasonality in molecular and cytometric diversity of marine bacterioplankton: the re-shuffling of bacterial taxa by vertical mixing. Environ Microbiol. 2015;17:4133–42.

    PubMed 

    Google Scholar 

  • 75.

    Jousset A, Bienhold C, Chatzinotas A, Gallien L, Gobet A, Kurm V, et al. Where less may be more: how the rare biosphere pulls ecosystems strings. ISME J. 2017;11:853–62.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 76.

    Giner CR, Pernice MC, Balagué V, Duarte CM, Gasol JM, Logares R, et al. Marked changes in diversity and relative activity of picoeukaryotes with depth in the world ocean. ISME J. 2020;14:437–49.

    PubMed 

    Google Scholar 

  • 77.

    Lehtovirta-Morley LE. Ammonia oxidation: ecology, physiology, biochemistry and why they must all come together. FEMS Microbiol Lett. 2018;365:fny058.

    Google Scholar 

  • 78.

    Williams TJ, Lefevre CT, Zhao W, Beveridge TJ, Bazylinski DA. Magnetospira thiophila gen. nov., sp. nov., a marine magnetotactic bacterium that represents a novel lineage within the Rhodospirillaceae (Alphaproteobacteria). Int J Syst Evol Microbiol. 2012;62:2443–50.

    CAS 
    PubMed 

    Google Scholar 

  • 79.

    von Friesen LW, Riemann L. Nitrogen fixation in a changing Arctic Ocean: an overlooked source of nitrogen? Front Microbiol. 2020;11:596426.

    Google Scholar 

  • 80.

    Alonso-Saez L, Waller AS, Mende DR, Bakker K, Farnelid H, Yager PL, et al. Role for urea in nitrification by polar marine archaea. Proc Natl Acad Sci USA. 2012;109:17989–94.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 81.

    Martínez-Pérez C, Greening C, Zhao Z, Lappan RJ, Bay SK, De Corte D, et al. Lifting the lid: nitrifying archaea sustain diverse microbial communities below the Ross Ice Shelf. Cell Rev. 2020; SSRN: https://ssrn.com/abstract=3677479 or https://doi.org/10.2139/ssrn.3677479.

  • 82.

    Mohamed NM, Saito K, Tal Y, Hill RT. Diversity of aerobic and anaerobic ammonia-oxidizing bacteria in marine sponges. ISME J. 2010;4:38–48.

    CAS 
    PubMed 

    Google Scholar 

  • 83.

    Mussmann M, Pjevac P, Kruger K, Dyksma S. Genomic repertoire of the Woeseiaceae/JTB255, cosmopolitan and abundant core members of microbial communities in marine sediments. ISME J. 2017;11:1276–81.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 84.

    Burow LC, Kong Y, Nielsen JL, Blackall LL, Nielsen PH. Abundance and ecophysiology of Defluviicoccus spp., glycogen-accumulating organisms in full-scale wastewater treatment processes. Microbiology. 2007;153:178–85.

    CAS 
    PubMed 

    Google Scholar 

  • 85.

    Lucas J, Koester I, Wichels A, Niggemann J, Dittmar T, Callies U, et al. Short-term dynamics of North Sea Bacterioplankton-dissolved organic matter coherence on molecular level. Front Microbiol. 2016;7:321.

  • 86.

    Stecher A, Neuhaus S, Lange B, Frickenhaus S, Beszteri B, Kroth PG, et al. rRNA and rDNA based assessment of sea ice protist biodiversity from the central Arctic Ocean. Eur J Phycol. 2016;51:31–46.

    CAS 

    Google Scholar 

  • 87.

    Lalande C, Nöthig E-M, Somavilla R, Bauerfeind E, Shevchenko V, Okolodkov Y. Variability in under-ice export fluxes of biogenic matter in the Arctic Ocean. Glob Biogeochem Cycles. 2014;28:571–83.

    CAS 

    Google Scholar 

  • 88.

    Hoffmann K, Hassenrück C, Salman-Carvalho V, Holtappels M, Bienhold C. Response of bacterial communities to different detritus compositions in Arctic deep-sea sediments. Front Microbiol. 2017;8:266.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 89.

    Kappelmann L, Krüger K, Hehemann J-H, Harder J, Markert S, Unfried F, et al. Polysaccharide utilization loci of North Sea Flavobacteriia as basis for using SusC/D-protein expression for predicting major phytoplankton glycans. ISME J. 2019;13:76–91.

    CAS 
    PubMed 

    Google Scholar 

  • 90.

    Izaguirre I, Unrein F, Schiaffino MR, Lara E, Singer D, Balagué V, et al. Phylogenetic diversity and dominant ecological traits of freshwater Antarctic Chrysophyceae. Polar Biol. 2021;44:941–57.

    Google Scholar 

  • 91.

    Humphry DR, George A, Black GW, Cummings SP. Flavobacterium frigidarium sp. nov., an aerobic, psychrophilic, xylanolytic and laminarinolytic bacterium from Antarctica. Int J Syst Evol Microbiol. 2001;51:1235–43.

    CAS 
    PubMed 

    Google Scholar 

  • 92.

    Rapp JZ, Fernández-Méndez M, Bienhold C, Boetius A. Effects of ice-algal aggregate export on the connectivity of bacterial communities in the central Arctic Ocean. Front Microbiol. 2018;9:1035.

  • 93.

    Ardyna M, Mundy CJ, Mayot N, Matthes LC, Oziel L, Horvat C, et al. Under-ice phytoplankton blooms: shedding light on the “invisible” part of Arctic primary production. Front Mar Sci. 2020;7:608032.

    Google Scholar 

  • 94.

    Alonso-Sáez L, Zeder M, Harding T, Pernthaler J, Lovejoy C, Bertilsson S, et al. Winter bloom of a rare betaproteobacterium in the Arctic Ocean. Front Microbiol. 2014;5:425.

  • 95.

    Hawley AK, Nobu MK, Wright JJ, Durno WE, Morgan-Lang C, Sage B, et al. Diverse Marinimicrobia bacteria may mediate coupled biogeochemical cycles along eco-thermodynamic gradients. Nat Commun. 2017;8:1507.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 96.

    Berdjeb L, Parada A, Needham DM, Fuhrman JA. Short-term dynamics and interactions of marine protist communities during the spring–summer transition. ISME J. 2018;12:1907–17.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 97.

    Singh A, Divya DT, Tripathy SC, Naik RK. Interplay of regional oceanography and biogeochemistry on phytoplankton bloom development in an Arctic fjord. Estuar Coast Shelf Sci. 2020;243:106916.

    CAS 

    Google Scholar 

  • 98.

    Engel A, Piontek J, Metfies K, Endres S, Sprong P, Peeken I, et al. Inter-annual variability of transparent exopolymer particles in the Arctic Ocean reveals high sensitivity to ecosystem changes. Sci Rep. 2017;7:4129.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 99.

    Nejstgaard JC, Tang KW, Steinke M, Dutz J, Koski M, Antajan E, et al. Zooplankton grazing on Phaeocystis: a quantitative review and future challenges. Biogeochemistry. 2007;83:147–72.

    Google Scholar 

  • 100.

    Lampitt RS, Salter I, Johns D. Radiolaria: major exporters of organic carbon to the deep ocean. Glob Biogeochem Cycles. 2009;23:GB1010.

    Google Scholar 

  • 101.

    Luria CM, Amaral-Zettler LA, Ducklow HW, Rich JJ. Seasonal succession of free-living bacterial communities in coastal waters of the western Antarctic Peninsula. Front Microbiol. 2016;7:1731.

    PubMed 
    PubMed Central 

    Google Scholar 

  • 102.

    Taylor JD, Cunliffe M. Coastal bacterioplankton community response to diatom-derived polysaccharide microgels. Environ Microbiol Rep. 2017;9:151–7.

    CAS 
    PubMed 

    Google Scholar 

  • 103.

    Gómez-Gutiérrez J, Kawaguchi S, Nicol S. Epibiotic suctorians and enigmatic ecto- and endoparasitoid dinoflagellates of euphausiid eggs (Euphausiacea) off Oregon, USA. J Plankton Res. 2009;31:777–85.

    Google Scholar 

  • 104.

    Cardman Z, Arnosti C, Durbin A, Ziervogel K, Cox C, Steen AD, et al. Verrucomicrobia: candidates for polysaccharide-degrading bacterioplankton in an Arctic fjord of Svalbard. Appl Environ Microbiol. 2014;80:3749–56.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 105.

    Landa M, Blain S, Harmand J, Monchy S, Rapaport A, Obernosterer I. Major changes in the composition of a Southern Ocean bacterial community in response to diatom-derived dissolved organic matter. FEMS Microbiol Ecol. 2018;94:fiy034.

    Google Scholar 

  • 106.

    Fahrbach E, Meincke J, Østerhus S, Rohardt G, Schauer U, Tverberg V, et al. Direct measurements of volume transports through Fram Strait. Polar Res. 2001;20:217–24.

    Google Scholar 

  • 107.

    Comeau AM, Li WK, Tremblay JE, Carmack EC, Lovejoy C. Arctic Ocean microbial community structure before and after the 2007 record sea ice minimum. PLOS ONE. 2011;6:e27492.

    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 

  • 108.

    Lalande C, Bauerfeind E, Nöthig E-M, Beszczynska-Möller A. Impact of a warm anomaly on export fluxes of biogenic matter in the eastern Fram Strait. Prog Oceanogr. 2013;109:70–7.

    Google Scholar 

  • 109.

    Dybwad C, Assmy P, Olsen LM, Peeken I, Nikolopoulos A, Krumpen T, et al. Carbon export in the seasonal sea ice zone north of Svalbard from winter to late summer. Front Mar Sci. 2021;7:525800.

    Google Scholar 

  • 110.

    Glud RN, Rysgaard S, Turner G, McGinnis DF, Leakey RJG. Biological- and physical-induced oxygen dynamics in melting sea ice of the Fram Strait. Limnol Oceanogr. 2014;59:1097–111.

    CAS 

    Google Scholar 

  • 111.

    Shiozaki T, Ijichi M, Fujiwara A, Makabe A, Nishino S, Yoshikawa C, et al. Factors regulating nitrification in the Arctic Ocean: potential impact of sea ice reduction and ocean acidification. Glob Biogeochem Cycles. 2019;33:1085–99.

    CAS 

    Google Scholar 


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