Articles | Volume 21, issue 20
https://doi.org/10.5194/bg-21-4605-2024
© Author(s) 2024. 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-21-4605-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 Oct 2024
Research article |
| 25 Oct 2024
| 25 Oct 2024
Multifactorial effects of warming, low irradiance, and low salinity on Arctic kelps
Anaïs Lebrun
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Department of Earth Sciences, Utrecht University, Utrecht, the Netherlands
Marc Meynadier
Laboratoire de Biologie du Développement de Villefranche-sur-Mer, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Steeve Comeau
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Pierre Urrutti
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Samir Alliouane
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Robert Schlegel
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Jean-Pierre Gattuso
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
Institute for Sustainable Development and International Relations, Sciences Po, Paris, France
Frédéric Gazeau
Laboratoire d'Océanographie de Villefranche, Sorbonne Université, CNRS, Villefranche-sur-Mer, France
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Frédéric Gazeau, France Van Wambeke, Emilio Marañón, Maria Pérez-Lorenzo, Samir Alliouane, Christian Stolpe, Thierry Blasco, Nathalie Leblond, Birthe Zäncker, Anja Engel, Barbara Marie, Julie Dinasquet, and Cécile Guieu
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Frédéric Gazeau, Céline Ridame, France Van Wambeke, Samir Alliouane, Christian Stolpe, Jean-Olivier Irisson, Sophie Marro, Jean-Michel Grisoni, Guillaume De Liège, Sandra Nunige, Kahina Djaoudi, Elvira Pulido-Villena, Julie Dinasquet, Ingrid Obernosterer, Philippe Catala, and Cécile Guieu
Biogeosciences, 18, 5011–5034, https://doi.org/10.5194/bg-18-5011-2021, https://doi.org/10.5194/bg-18-5011-2021, 2021
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Matthieu Roy-Barman, Lorna Foliot, Eric Douville, Nathalie Leblond, Fréderic Gazeau, Matthieu Bressac, Thibaut Wagener, Céline Ridame, Karine Desboeufs, and Cécile Guieu
Biogeosciences, 18, 2663–2678, https://doi.org/10.5194/bg-18-2663-2021, https://doi.org/10.5194/bg-18-2663-2021, 2021
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The release of insoluble elements such as aluminum (Al), iron (Fe), rare earth elements (REEs), thorium (Th) and protactinium (Pa) when Saharan dust falls over the Mediterranean Sea was studied during tank experiments under present and future climate conditions. Each element exhibited different dissolution kinetics and dissolution fractions (always lower than a few percent). Changes in temperature and/or pH under greenhouse conditions lead to a lower Th release and a higher light REE release.
Phillip Williamson, Hans-Otto Pörtner, Steve Widdicombe, and Jean-Pierre Gattuso
Biogeosciences, 18, 1787–1792, https://doi.org/10.5194/bg-18-1787-2021, https://doi.org/10.5194/bg-18-1787-2021, 2021
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replicatedstudies differed in many ways. Open-minded and collaborative assessment of all research results, both negative and positive, remains the best way to develop process-based understanding of the impacts of ocean acidification on marine organisms.
Cale A. Miller, Christina Bonsell, Nathan D. McTigue, and Amanda L. Kelley
Biogeosciences, 18, 1203–1221, https://doi.org/10.5194/bg-18-1203-2021, https://doi.org/10.5194/bg-18-1203-2021, 2021
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We report here the first year-long high-frequency pH data set for an Arctic lagoon that captures ice-free and ice-covered seasons. pH and salinity correlation varies by year as we observed positive correlation and independence. Photosynthesis is found to drive high pH values, and small changes in underwater solar radiation can result in rapid decreases in pH. We estimate that arctic lagoons may act as sources of CO2 to the atmosphere, potentially offsetting the Arctic Ocean's CO2 sink capacity.
Cited articles
Aguilera, J., Bischof, K., Karsten, U., Hanelt, D., and Wiencke, C.: Seasonal variation in ecophysiological patterns in macroalgae from an Arctic fjord. II. Pigment accumulation and biochemical defence systems against high light stress, Mar. Biol., 140, 1087–1095, https://doi.org/10.1007/s00227-002-0792-y, 2002.
Ahmed, R., Prowse, T., Dibike, Y., Bonsal, B., and O'Neil, H.: Recent Trends in Freshwater Influx to the Arctic Ocean from Four Major Arctic-Draining Rivers, Water, 12, 1189, https://doi.org/10.3390/w12041189, 2020.
Andersen, G. S., Pedersen, M. F., and Nielsen, S. L.: Temperature acclimation and heat tolerance of photosynthesis in Norwegian Saccharina latissima (Laminariales, Phaeophyceae), J. Phycol., 49, 689–700, https://doi.org/10.1111/jpy.12077, 2013.
Atkinson, M. J. and Smith, S. V.: C:N:P ratios of benthic marine plants, Limnol. Oceanogr., 28, 568–574, https://doi.org/10.4319/lo.1983.28.3.0568, 1983.
Bartsch, I., Wiencke, C., Bischof, K., Buchholz, C. M., Buck, B. H., Eggert, A., Feuerpfeil, P., Hanelt, D., Jacobsen, S., Karez, R., Karsten, U., Molis, M., Roleda, M. Y., Schubert, H., Schumann, R., Valentin, K., Weinberger, F., and Wiese, J.: The genus Laminaria sensu lato: recent insights and developments, Eur. J. Phycol., 43, 1–86, https://doi.org/10.1080/09670260701711376, 2008.
Bartsch, I., Paar, M., Fredriksen, S., Schwanitz, M., Daniel, C., Hop, H., and Wiencke, C.: Changes in kelp forest biomass and depth distribution in Kongsfjorden, Svalbard, between 1996–1998 and 2012–2014 reflect Arctic warming, Polar Biol., 39, 2021–2036, https://doi.org/10.1007/s00300-015-1870-1, 2016.
Bates, D., Mächler, M., Bolker, B., and Walker, S.: Fitting Linear Mixed-Effects Models Using lme4, J. Stat. Softw., 67, 1–48, https://doi.org/10.18637/jss.v067.i01, 2015.
Bauer, S., Grossmann, S., Vingron, M., and Robinson, P. N.: Ontologizer 2.0–a multifunctional tool for GO term enrichment analysis and data exploration, Bioinformatics, 24, 1650–1651, https://doi.org/10.1093/bioinformatics/btn250, 2008.
Berge, J., Johnsen, G., and Cohen, J. H.: Polar night marine ecology, Advances in Polar Ecology, 4, https://doi.org/10.1007/978-3-030-33208-2, 2020.
Bischof, K., Hanelt, D., and Wiencke, C.: Acclimation of Maximal Quantum Yield of Photosynthesis in the Brown Alga Alaria esculenta under High Light and UV Radiation, Plant Biol., 1, 435–444, https://doi.org/10.1111/j.1438-8677.1999.tb00726.x, 1999.
Bolger, A. M., Lohse, M., and Usadel, B.: Trimmomatic: a flexible trimmer for Illumina sequence data, Bioinformatics, 30, 2114–2120, https://doi.org/10.1093/bioinformatics/btu170, 2014.
Bolton, J. J. and Lüning, K.: Optimal growth and maximal survival temperatures of Atlantic Laminaria species (Phaeophyta) in culture, Mar. Biol., 66, 89–94, https://doi.org/10.1007/BF00397259, 1982.
Bray, N. L., Pimentel, H., Melsted, P., and Pachter, L.: Near-optimal probabilistic RNA-seq quantification, Nat. Biotechnol., 34, 525–527, https://doi.org/10.1038/nbt.3519, 2016.
Bushmanova, E., Antipov, D., Lapidus, A., and Prjibelski, A. D.: rnaSPAdes: a de novo transcriptome assembler and its application to RNA-Seq data, GigaScience, 8, giz100, https://doi.org/10.1093/gigascience/giz100, 2019.
Campbell, W. H.: Nitrate reductase and its role in nitrate assimilation in plants, Physiol. Plantarum, 74, 214–219, https://doi.org/10.1111/j.1399-3054.1988.tb04965.x, 1988.
Dankworth, M., Heinrich, S., Fredriksen, S., and Bartsch, I.: DNA barcoding and mucilage ducts in the stipe reveal the presence of Hedophyllum nigripes (Laminariales, Phaeophyceae) in Kongsfjorden (Spitsbergen), J. Phycol., 56, 1245–1254, https://doi.org/10.1111/jpy.13012, 2020.
Diehl, N. and Bischof, K.: Coping with a changing Arctic: mechanisms of acclimation in the brown seaweed Saccharina latissima from Spitsbergen, Mar. Ecol. Prog. Ser., 657, 43–57, https://doi.org/10.3354/meps13532, 2021.
Diehl, N., Roleda, M. Y., Bartsch, I., Karsten, U., and Bischof, K.: Summer Heatwave Impacts on the European Kelp Saccharina latissima Across Its Latitudinal Distribution Gradient, Front. Mar. Sci., 8, https://doi.org/10.3389/fmars.2021.695821, 2021.
Eggert, A.: Seaweed Responses to Temperature, in: Seaweed Biology: Novel Insights into Ecophysiology, Ecology and Utilization, edited by: Wiencke, C. and Bischof, K., Springer, Berlin, Heidelberg, 47–66, https://doi.org/10.1007/978-3-642-28451-9_3, 2012.
Filbee-Dexter, K., Wernberg, T., Fredriksen, S., Norderhaug, K. M., and Pedersen, M. F.: Arctic kelp forests: Diversity, resilience and future, Global Planet. Change, 172, 1–14, https://doi.org/10.1016/j.gloplacha.2018.09.005, 2019.
Finn, R. D., Clements, J., and Eddy, S. R.: HMMER web server: interactive sequence similarity searching, Nucl. Acid. Res., 39, W29, https://doi.org/10.1093/nar/gkr367, 2011.
Franke, K., Liesner, D., Heesch, S., and Bartsch, I.: Looks can be deceiving: contrasting temperature characteristics of two morphologically similar kelp species co-occurring in the Arctic, Botan. Mar., 64, 163–175, https://doi.org/10.1515/bot-2021-0014, 2021.
Gene Ontology Consortium: Gene Ontology Consortium: going forward, Nucl. Acids Res., 43, D1049-1056, https://doi.org/10.1093/nar/gku1179, 2015.
Goldsmit, J., Schlegel, R. W., Filbee-Dexter, K., MacGregor, K. A., Johnson, L. E., Mundy, C. J., Savoie, A. M., McKindsey, C. W., Howland, K. L., and Archambault, P.: Kelp in the Eastern Canadian Arctic: Current and Future Predictions of Habitat Suitability and Cover, Front. Mar. Sci., 8, https://doi.org/10.3389/fmars.2021.742209, 2021.
Gordillo, F. J. L., Dring, M. J., and Savidge, G.: Nitrate and phosphate uptake characteristics of three species of brown algae cultured at low salinity, Mar. Ecol. Prog. Ser., 234, 111–118, https://doi.org/10.3354/meps234111, 2002.
Grabherr, M. G., Haas, B. J., Yassour, M., Levin, J. Z., Thompson, D. A., Amit, I., Adiconis, X., Fan, L., Raychowdhury, R., Zeng, Q., Chen, Z., Mauceli, E., Hacohen, N., Gnirke, A., Rhind, N., di Palma, F., Birren, B. W., Nusbaum, C., Lindblad-Toh, K., Friedman, N., and Regev, A.: Full-length transcriptome assembly from RNA-Seq data without a reference genome, Nat. Biotechnol., 29, 644–652, https://doi.org/10.1038/nbt.1883, 2011.
Guzinski, J., Mauger, S., Cock, J. M., and Valero, M.: Characterization of newly developed expressed sequence tag-derived microsatellite markers revealed low genetic diversity within and low connectivity between European Saccharina latissima populations, J. Appl. Phycol., 28, 3057–3070, https://doi.org/10.1007/s10811-016-0806-7, 2016.
Haas, B. and Papanicolaou, A.: TransDecoder 5.5.0, https://github.com/TransDecoder/TransDecoder/wiki (last access: 15 October 2023), 2015.
Heinrich, S., Frickenhaus, S., Glöckner, G., and Valentin, K.: A comprehensive cDNA library of light- and temperature-stressed Saccharina latissima (Phaeophyceae), Eur. J. Phycol., 47, 83–94, https://doi.org/10.1080/09670262.2012.660639, 2012.
Heinrich, S., Valentin, K., Frickenhaus, S., and Wiencke, C.: Temperature and light interactively modulate gene expression in Saccharina latissima (Phaeophyceae), J. Phycol., 51, 93–108, https://doi.org/10.1111/jpy.12255, 2015.
Hop, H., Wiencke, C., Vögele, B., and Kovaltchouk, N. A.: Species composition, zonation, and biomass of marine benthic macroalgae in Kongsfjorden, Svalbard, Bot. Mar., 55, 399–414, https://doi.org/10.1515/bot-2012-0097, 2012.
Hu, S., Zhang, L., and Qian, S.: Marine Heatwaves in the Arctic Region: Variation in Different Ice Covers, Geophys. Res. Lett., 47, e2020GL089329, https://doi.org/10.1029/2020GL089329, 2020.
Huerta-Cepas, J., Forslund, K., Coelho, L. P., Szklarczyk, D., Jensen, L. J., von Mering, C., and Bork, P.: Fast Genome-Wide Functional Annotation through Orthology Assignment by eggNOG-Mapper, Mol. Biol. Evol., 34, 2115–2122, https://doi.org/10.1093/molbev/msx148, 2017.
Huerta-Cepas, J., Szklarczyk, D., Heller, D., Hernández-Plaza, A., Forslund, S. K., Cook, H., Mende, D. R., Letunic, I., Rattei, T., Jensen, L. J., von Mering, C., and Bork, P.: eggNOG 5.0: a hierarchical, functionally and phylogenetically annotated orthology resource based on 5090 organisms and 2502 viruses, Nucl. Acids Res., 47, D309–D314, https://doi.org/10.1093/nar/gky1085, 2019.
Iñiguez, C., Carmona, R., Lorenzo, M. R., Niell, F. X., Wiencke, C., and Gordillo, F. J. L.: Increased temperature, rather than elevated CO2, modulates the carbon assimilation of the Arctic kelps Saccharina latissima and Laminaria solidungula, Mar. Biol., 163, 248, https://doi.org/10.1007/s00227-016-3024-6, 2016.
Karsten, U.: Research note: Salinity tolerance of Arctic kelps from Spitsbergen, Phycol. Res., 55, 257–262, https://doi.org/10.1111/j.1440-1835.2007.00468.x, 2007.
Karsten, U.: Seaweed Acclimation to Salinity and Desiccation Stress, in: Seaweed Biology: Novel Insights into Ecophysiology, Ecology and Utilization, edited by: Wiencke, C. and Bischof, K., Springer, Berlin, Heidelberg, 87–107, https://doi.org/10.1007/978-3-642-28451-9_5, 2012.
Korb, R. E. and Gerard, V. A.: Nitrogen assimilation characteristics of polar seaweeds from differing nutrient environments, J. Phycol., 36, 38–38, https://doi.org/10.1046/j.1529-8817.1999.00001-114.x, 2002.
Krause-Jensen, D. and Duarte, C. M.: Substantial role of macroalgae in marine carbon sequestration, Nat. Geosci., 9, 737–742, https://doi.org/10.1038/ngeo2790, 2016.
Krause-Jensen, D., Marbà, N., Olesen, B., Sejr, M. K., Christensen, P. B., Rodrigues, J., Renaud, P. E., Balsby, T. J. S., and Rysgaard, S.: Seasonal sea ice cover as principal driver of spatial and temporal variation in depth extension and annual production of kelp in Greenland, Glob. Change Biol., 18, 2981–2994, https://doi.org/10.1111/j.1365-2486.2012.02765.x, 2012.
Krause-Jensen, D., Archambault, P., Assis, J., Bartsch, I., Bischof, K., Filbee-Dexter, K., Dunton, K. H., Maximova, O., Ragnarsdóttir, S. B., Sejr, M. K., Simakova, U., Spiridonov, V., Wegeberg, S., Winding, M. H. S., and Duarte, C. M.: Imprint of Climate Change on Pan-Arctic Marine Vegetation, Front. Mar. Sci., 7, https://doi.org/10.3389/fmars.2020.617324, 2020.
Kwiatkowski, L., Torres, O., Bopp, L., Aumont, O., Chamberlain, M., Christian, J. R., Dunne, J. P., Gehlen, M., Ilyina, T., John, J. G., Lenton, A., Li, H., Lovenduski, N. S., Orr, J. C., Palmieri, J., Santana-Falcón, Y., Schwinger, J., Séférian, R., Stock, C. A., Tagliabue, A., Takano, Y., Tjiputra, J., Toyama, K., Tsujino, H., Watanabe, M., Yamamoto, A., Yool, A., and Ziehn, T.: Twenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections, Biogeosciences, 17, 3439–3470, https://doi.org/10.5194/bg-17-3439-2020, 2020.
Laboratoire Oceanographie de Villefranche-sur-Mer (LOV): Multifactorial effects of warming, low irradiance, and low salinity on Arctic kelps, https://www.ncbi.nlm.nih.gov/sra/PRJNA1150786, 22 August 2024.
Lebrun, A., Comeau, S., Gazeau, F., and Gattuso, J.-P.: Impact of climate change on Arctic macroalgal communities, Global Planet. Change, 219, 103980, https://doi.org/10.1016/j.gloplacha.2022.103980, 2022.
Lebrun, A., Miller, C. A., Meynadier, M., Comeau, S., Urrutti, P., Alliouane, S., Schlegel, R., Gattuso, J.-P., and Gazeau, F.: Multifactorial effects of warming, low irradiance, and low salinity on Arctic kelps, bundled publication, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.971349, 2024.
Letunic, I., Khedkar, S., and Bork, P.: SMART: recent updates, new developments and status in 2020, Nucl. Acids Res., 49, D458–D460, https://doi.org/10.1093/nar/gkaa937, 2021.
Li, H., Monteiro, C., Heinrich, S., Bartsch, I., Valentin, K., Harms, L., Glöckner, G., Corre, E., and Bischof, K.: Responses of the kelp Saccharina latissima (Phaeophyceae) to the warming Arctic: from physiology to transcriptomics, Physiol. Plant, 168, 5–26, https://doi.org/10.1111/ppl.13009, 2020.
Li, W. and Godzik, A.: Cd-hit: a fast program for clustering and comparing large sets of protein or nucleotide sequences, Bioinformatics, 22, 1658–1659, https://doi.org/10.1093/bioinformatics/btl158, 2006.
Liesner, D., Fouqueau, L., Valero, M., Roleda, M. Y., Pearson, G. A., Bischof, K., Valentin, K., and Bartsch, I.: Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations, Ecol. Evol., 10, 9144–9177, https://doi.org/10.1002/ece3.6569, 2020.
Loreau, M., Naeem, S., Inchausti, P., Bengtsson, J., Grime, J. P., Hector, A., Hooper, D. U., Huston, M. A., Raffaelli, D., Schmid, B., Tilman, D., and Wardle, D. A.: Biodiversity and Ecosystem Functioning: Current Knowledge and Future Challenges, Science, 294, 804–808, https://doi.org/10.1126/science.1064088, 2001.
Lorenzen, C. J.: Determination of Chlorophyll and Pheo-Pigments: Spectrophotometric Equations, Limnol. Oceanogr., 12, 343–346, https://doi.org/10.4319/lo.1967.12.2.0343, 1967.
Love, M. I., Huber, W., and Anders, S.: Moderated estimation of fold change and dispersion for RNA-seq data with DESeq2, Genome Biol., 15, 550, https://doi.org/10.1186/s13059-014-0550-8, 2014.
Machado Monteiro, C. M., Li, H., Bischof, K., Bartsch, I., Valentin, K. U., Corre, E., Collén, J., Harms, L., Glöckner, G., and Heinrich, S.: Is geographical variation driving the transcriptomic responses to multiple stressors in the kelp Saccharina latissima?, BMC Plant Biol., 19, 513, https://doi.org/10.1186/s12870-019-2124-0, 2019.
McWilliam, J. R. and Naylor, A. W.: Temperature and Plant Adaptation. I. Interaction of Temperature and Light in the Synthesis of Chlorophyll in Corn, Plant Physiol., 42, 1711, https://doi.org/10.1104/pp.42.12.1711, 1967.
Meyer, C., Lea, U. S., Provan, F., Kaiser, W. M., and Lillo, C.: Is nitrate reductase a major player in the plant NO (nitric oxide) game?, Photosynth. Research.
Millard, S. P.: Hypothesis Tests, in: EnvStats: An R Package for Environmental Statistics, edited by: Millard, S. P., Springer, New York, NY, 149–173, https://doi.org/10.1007/978-1-4614-8456-1_7, 2013.
Miller, C. A., Gazeau, F., Lebrun, A., Gattuso, J.-P., Alliouane, S., Urrutti, P., Schlegel, R. W., and Comeau, S.: Productivity of mixed kelp communities in an Arctic fjord exhibit tolerance to a future climate, Sci. Total Environ., 930, 172571, https://doi.org/10.1016/j.scitotenv.2024.172571, 2024a.
Miller, C. A., Urrutti, P., Gattuso, J.-P., Comeau, S., Lebrun, A., Alliouane, S., Schlegel, R. W., and Gazeau, F.: Technical note: An autonomous flow-through salinity and temperature perturbation mesocosm system for multi-stressor experiments, Biogeosciences, 21, 315–333, https://doi.org/10.5194/bg-21-315-2024, 2024b.
Mistry, J., Chuguransky, S., Williams, L., Qureshi, M., Salazar, G. A., Sonnhammer, E. L. L., Tosatto, S. C. E., Paladin, L., Raj, S., Richardson, L. J., Finn, R. D., and Bateman, A.: Pfam: The protein families database in 2021, Nucl. Acids Res., 49, D412–D419, https://doi.org/10.1093/nar/gkaa913, 2021.
Müller, R., Wiencke, C., and Bischof, K.: Interactive effects of UV radiation and temperature on microstages of Laminariales (Phaeophyceae) from the Arctic and North Sea, Clim. Res., 37, 203–213, https://doi.org/10.3354/cr00762, 2008.
Müller, R., Laepple, T., Bartsch, I., and Wiencke, C.: Impact of oceanic warming on the distribution of seaweeds in polar and cold-temperate waters, 52, 617–638, https://doi.org/10.1515/BOT.2009.080, 2009.
Muth, A. F., Bonsell, C., and Dunton, K. H.: Inherent tolerance of extreme seasonal variability in light and salinity in an Arctic endemic kelp (Laminaria solidungula), J. Phycol., 57, 1554–1562, https://doi.org/10.1111/jpy.13187, 2021.
Niedzwiedz, S. and Bischof, K.: Glacial retreat and rising temperatures are limiting the expansion of temperate kelp species in the future Arctic, Limnol. Oceanogr., 68, 816–830, https://doi.org/10.1002/lno.12312, 2023.
Olischläger, M., Iñiguez, C., Koch, K., Wiencke, C., and Gordillo, F. J. L.: Increased pCO2 and temperature reveal ecotypic differences in growth and photosynthetic performance of temperate and Arctic populations of Saccharina latissima, Planta, 245, 119–136, https://doi.org/10.1007/s00425-016-2594-3, 2017.
Parke, M.: Studies on British Laminariaceae. I. Growth in Laminaria Saccharina (L.) Lamour, J. Mar. Biol. Assoc. UK, 27, 651–709, https://doi.org/10.1017/S0025315400056071, 1948.
Peterson, B. J., Holmes, R. M., McClelland, J. W., Vörösmarty, C. J., Lammers, R. B., Shiklomanov, A. I., Shiklomanov, I. A., and Rahmstorf, S.: Increasing River Discharge to the Arctic Ocean, Science, 298, 2171–2173, https://doi.org/10.1126/science.1077445, 2002.
R Core Team, R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, https://www.R-project.org/ (last access: 15 October 2023), 2023.
Renaud, P. E., Wallhead, P., Kotta, J., Włodarska-Kowalczuk, M., Bellerby, R. G. J., Rätsep, M., Slagstad, D., and Kukliński, P.: Arctic Sensitivity? Suitable Habitat for Benthic Taxa Is Surprisingly Robust to Climate Change, Front. Mar. Sci., 6, https://doi.org/10.3389/fmars.2019.00538, 2019.
Richter-Menge, J., Overland, J. E., Mathis, J. T., Osborne, E., and Eds: Arctic Report Card 2017: Arctic shows no sign of returning to reliably frozen region of recent past decades, https://doi.org/10.25923/8ntk-7817, 2017.
Roleda, M., Wiencke, C., Lüder, U., and Hanelt, D.: Response of Arctic kelp zoospores to ultraviolet and photosynthetically active radiation in relation to growth depth, in: EPIC38th, 8th Intern. Phycol. Cong., 13–19 August 2005, Durban, South Africa, Phycologia, Phycologia, 44, 13336, 2005.
Santos-Garcia, M., Ganeshram, R. S., Tuerena, R. E., Debyser, M. C. F., Husum, K., Assmy, P., and Hop, H.: Nitrate isotope investigations reveal future impacts of climate change on nitrogen inputs and cycling in Arctic fjords: Kongsfjorden and Rijpfjorden (Svalbard), Biogeosciences, 19, 5973–6002, https://doi.org/10.5194/bg-19-5973-2022, 2022.
Scherrer, K. J. N., Kortsch, S., Varpe, Ø., Weyhenmeyer, G. A., Gulliksen, B., and Primicerio, R.: Mechanistic model identifies increasing light availability due to sea ice reductions as cause for increasing macroalgae cover in the Arctic, Limnol. Oceanogr., 64, 330–341, https://doi.org/10.1002/lno.11043, 2019.
Shiklomanov, I. A. and Shiklomanov, A. I.: Climatic Change and the Dynamics of River Runoff into the Arctic Ocean, Water Resour., 30, 593–601, https://doi.org/10.1023/B:WARE.0000007584.73692.ca, 2003.
Simão, F. A., Waterhouse, R. M., Ioannidis, P., Kriventseva, E. V., and Zdobnov, E. M.: BUSCO: assessing genome assembly and annotation completeness with single-copy orthologs, Bioinformatics, 31, 3210–3212, https://doi.org/10.1093/bioinformatics/btv351, 2015.
Sivertsen, K.: Geographic and environmental factors affecting the distribution of kelp beds and barren grounds and changes in biota associated with kelp reduction at sites along the Norwegian coast, Can. J. Fish. Aquat. Sci., 54, 2872–2887, https://doi.org/10.1139/f97-186, 1997.
Sørensen, J. G., Kristensen, T. N., and Loeschcke, V.: The evolutionary and ecological role of heat shock proteins, Ecol. Lett., 6, 1025–1037, https://doi.org/10.1046/j.1461-0248.2003.00528.x, 2003.
Spurkland, T. and Iken, K.: Salinity and irradiance effects on growth and maximum photosynthetic quantum yield in subarctic Saccharina latissima (Laminariales, Laminariaceae), Botanica Marina, 54, 355–365, https://doi.org/10.1515/bot.2011.042, 2011.
Stroeve, J. C., Markus, T., Boisvert, L., Miller, J., and Barrett, A.: Changes in Arctic melt season and implications for sea ice loss, Geophys. Res. Lett., 41, 1216–1225, https://doi.org/10.1002/2013GL058951, 2014.
Supek, F., Bošnjak, M., Škunca, N., and Šmuc, T.: REVIGO summarizes and visualizes long lists of gene ontology terms, PLoS One, 6, e21800, https://doi.org/10.1371/journal.pone.0021800, 2011.
Vihtakari M: ggOceanMaps: plot data on oceanographic maps using “ggplot2”, R package version 2.0.4, https://mikkovihtakari.github.io/ggOceanMaps/ (last access: 15 October 2023), 2023.
Wiencke, C., Bartsch, I., Bischoff, B., Peters, A., and Breeman, A.: Temperature Requirements and Biogeography of Antarctic, Arctic and Amphiequatorial Seaweeds, J. Botan. Mar., 37, 247–259, https://doi.org/10.1515/botm.1994.37.3.247, 1994.
Zacher, K., Bernard, M., Bartsch, I., and Wiencke, C.: Survival of early life history stages of Arctic kelps (Kongsfjorden, Svalbard) under multifactorial global change scenarios, Polar Biol., 39, 2009–2020, https://doi.org/10.1007/s00300-016-1906-1, 2016.
Zacher, K., Bernard, M., Daniel Moreno, A., and Bartsch, I.: Temperature mediates the outcome of species interactions in early life-history stages of two sympatric kelp species, Mar. Biol., 166, 161, https://doi.org/10.1007/s00227-019-3600-7, 2019.
Zhang, D.-W., Yuan, S., Xu, F., Zhu, F., Yuan, M., Ye, H.-X., Guo, H.-Q., Lv, X., Yin, Y., and Lin, H.-H.: Light intensity affects chlorophyll synthesis during greening process by metabolite signal from mitochondrial alternative oxidase in Arabidopsis, Plant Cell Environ., 39, 12–25, https://doi.org/10.1111/pce.12438, 2014.
Short summary
We tested the effects of warming, low salinity, and low irradiance on Arctic kelps. We show that growth rates were similar across species and treatments. Alaria esculenta is adapted to low-light conditions. Saccharina latissima exhibited nitrogen limitation, suggesting coastal erosion and permafrost thawing could be beneficial. Laminaria digitata did not respond to the treatments. Gene expression of Hedophyllum nigripes and S. latissima indicated acclimation to the experimental treatments.
We tested the effects of warming, low salinity, and low irradiance on Arctic kelps. We show that...
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