Descamps, S. et al. Climate change impacts on wildlife in a High Arctic archipelago–Svalbard, Norway. Glob. Change Biol. 23, 490–502 (2017).
Google Scholar
Yletyinen, J. Arctic climate resilience. Nat. Clim. Change 9, 805–806 (2019).
Google Scholar
Renaud, P. E. et al. Pelagic food-webs in a changing Arctic: A trait-based perspective suggests a mode of resilience. ICES J. Mar. Sci. 75, 1871–1881 (2018).
Google Scholar
Möller, E. F. & Nielsen, T. G. Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland. Limnol. Oceanogr. 65, 1175–1188 (2020).
Google Scholar
Dalpadado, P. et al. Climate effects on temporal and spatial dynamics of phytoplankton and zooplankton in the Barents Sea. Prog. Oceanogr. 185, 102320. https://doi.org/10.1016/j.pocean.2020.102320 (2020).
Google Scholar
Csapó, H. K., Grabowski, M. & Węsławski, J. M. Coming home – Boreal ecosystem claims Atlantic sector of the Arctic. Sci. Total. Environ. 771, 144817. https://doi.org/10.1016/j.scitotenv.2020.144817 (2021).
Google Scholar
Bauerfeind, E., Nöthig, E. M., Pauls, B., Kraft, A. & Beszczynska-Möller, A. Variability in pteropod sedimentation and corresponding aragonite flux at the Arctic deep-sea long-term observatory HAUSGARTEN in the eastern Fram Strait from 2000 to 2009. J. Mar. Syst. 132, 95–10 (2014).
Google Scholar
Weydmann, A. et al. Shift towards the dominance of boreal species in the Arctic: Inter-annual and spatial zooplankton variability in the West Spitsbergen Current. Mar. Ecol. Prog. Ser. 501, 41–52 (2014).
Google Scholar
Gluchowska, M. et al. Zooplankton in Svalbard fjords on the Atlantic-Arctic boundary. Polar. Biol. 39, 1785–1802 (2016).
Google Scholar
Wassmann, P. et al. The contiguous domains of Arctic Ocean advection: Trails of life and death. Prog. Oceanogr. 139, 42–65 (2015).
Google Scholar
Nielsen, T. G. & Andersen, C. Plankton community structure and production along a freshwater-influenced Norwegian fjord system. Mar. Biol. 141, 707–724 (2002).
Google Scholar
Lischka, S. & Hagen, W. Life histories of the copepods Pseudocalanus minutus, P. acuspes, (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard). Polar Biol. 28, 910–921 (2005).
Google Scholar
Arendt, K. E., Nielsen, T. G., Rysgaard, S. & Tönnesson, K. Differences in plankton community structure along the Godthåbsfjord, from the Greenland Ice Sheet to offshore waters. Mar. Ecol. Prog. Ser. 401, 49–62 (2010).
Google Scholar
Trudnowska, E., Stemmann, L., Błachowiak-Samołyk, K. & Kwasniewski, S. Taxonomic and size structures of zooplankton communities in the fjords along the Atlantic water passage to the Arctic. J. Mar. Sys. 204, 103306. https://doi.org/10.1016/j.jmarsys.2020.103306 (2020).
Google Scholar
Balazy, K., Trudnowska, E., Wichorowski, M. & Błachowiak-Samołyk, K. Large versus small zooplankton in relation to temperature in the Arctic shelf region. Polar. Res. 37, 1427409. https://doi.org/10.1080/17518369.2018.1427409 (2018).
Google Scholar
Turner, J. T. The importance of small planktonic copepods and their roles in pelagic marine food webs. Zool. Stud. 43, 255–266 (2004).
Turner, J. T. Planktonic copepods of Boston Harbor, Massachusetts Bay and Cape Cod Bay. Hydrobiologia 292(293), 405–413 (1994).
Google Scholar
Castellani, C., Robinson, C., Smith, T. & Lampitt, R. S. Temperature affects respiration rate of Oithona similis. Mar. Ecol. Prog. Ser. 285, 129–135 (2005).
Google Scholar
Turner, J. T., Levinsen, H., Nielsen, T. G. & Hansen, B. W. Zooplankton feeding ecology: Grazing on phytoplankton and predation on protozoans by copepod and barnacle nauplii in Disko Bay, West Greenland. Mar. Ecol. Prog. Ser. 221, 209–219 (2001).
Google Scholar
Boissonnot, L., Niehoff, B., Hagen, W., Søreide, J. E. & Graeve, M. Lipid turnover reflects life-cycle strategies of small-sized Arctic copepods. J. Plankton Res. 38, 1420–1432 (2016).
Google Scholar
Błachowiak-Samołyk, K. et al. Winter Tales: The dark side of planktonic life. Polar Biol. 38, 23–36 (2015).
Google Scholar
Berge, J. et al. Zooplankton in the Polar Night in Polar Night Marine Ecology. In Advances in Polar Ecology Vol. 4 (eds Berge, J. et al.) (Springer, New York, 2020). https://doi.org/10.1007/978-3-030-33208-2_5.
Google Scholar
Hobbs, L., Banas, N. S., Cottier, F. R., Berge, J. & Daase, M. Eat or sleep: Availability of winter prey explains mid-winter and early-spring activity in an Arctic Calanus population. Front. Mar. Sci. 7, 744. https://doi.org/10.3389/fmars.2020.541564 (2020).
Google Scholar
Svensen, C., Seuthe, L., Vasilyeva, Y., Pasternak, A. & Hansen, E. Zooplankton distribution across Fram Strait in autumn: Are small copepods and protozooplankton important?. Prog. Oceanog. 91, 534–544 (2011).
Google Scholar
Węsławski, J. M., Kwasniewski, S. & Wiktor, J. Winter in Svalbard fjord ecosystem. Arctic 44, 115–123 (1991).
Google Scholar
Lischka, S., Giménez, L., Hagen, W. & Ueberschär, B. Seasonal changes in digestive enzyme (trypsin) activity of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard). Polar Biol. 30, 1331–1341 (2007).
Google Scholar
Lischka, S. & Hagen, W. Seasonal dynamics of mesozooplankton in the Arctic Kongsfjord (Svalbard) during year-round observations from August 1998 to July 1999. Polar Biol. 39, 1859–1878 (2016).
Google Scholar
Weydmann-Zwolicka, A. et al. Zooplankton and sediment flux in two contrasting fjords reveal Atlantification of the Arctic. Sci. Total. Environ. 773, 145599. https://doi.org/10.1016/j.scitotenv.2021.145599 (2021).
Google Scholar
Zamora-Terol, S., Nielsen, T. G. & Saiz, E. Plankton community structure and role of Oithona similis on the western coast of Greenland during the winter-spring transition. Mar. Ecol. Prog. Ser. 483, 85–102 (2013).
Google Scholar
Zamora-Terol, S., Kjellerup, S., Swalethorp, R., Saiz, E. & Nielsen, T. G. Population dynamics and production of the small copepod Oithona spp. in a subarctic fjord of West Greenland. Polar. Biol. 37, 953–965 (2014).
Google Scholar
Dvoretsky, V. G. & Dvoretsky, A. G. Life cycle of Oithona similis (Copepoda: Cyclopoida) in Kola Bay (Barents Sea). Mar. Biol. 156, 1433–1446 (2009).
Google Scholar
Glad, P. Seasonal occurrence of Oithona similis (cyclopoida), Microsetella norvegica (harpacticoida) and Microcalanus spp. (calanoida), and productivity of O. similis, in three high-latitude Norwegian fjords. Master thesis (UiT The Arctic University of Norway, 2018).
Kosobokova, K. & Hirche, H. J. Biomass of zooplankton in the eastern Arctic Ocean—a baseline study. Progr. Oceanogr. 82, 265–280 (2009).
Google Scholar
Bluhm, B., Kosobokova, K. & Carmack, E. A tale of two basins: An integrated physical and biological perspective of the deep Arctic Ocean. Prog. Oceanog. 139, 89–121 (2015).
Google Scholar
Hop, H. et al. Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change in The Ecosystem of Kongsfjorden, Svalbard. In Advances in Polar Ecology Vol. 2 (eds Hop, H. & Wiencke, C.) 10.1007/978-3-319-46425–1_7 (Springer, New York, 2019).
Böttger-Schnack, R., Schnack, D. & Hagen, W. Microcopepod community structure in the Gulf of Aqaba and northern Red Sea, with special reference to Oncaeidae. J. Plankton Res. 30, 529–550 (2008).
Google Scholar
Cornwell, L. E. et al. Seasonality of Oithona similis and Calanus helgolandicus reproduction and abundance: Contrasting responses to environmental variation at a shelf site. J. Plankton Res. 40, 295–310 (2018).
Google Scholar
Kubiszyn, A. M. et al. The annual planktonic protist community structure in an ice-free high Arctic fjord (Adventfjorden, West Spitsbergen). J. Mar. Syst. 169, 61–72 (2017).
Google Scholar
Kellogg, C. T. E., McClelland, J. W., Dunton, K. H. & Crump, B. C. Strong seasonality in Arctic estuarine microbial food webs. Front. Microbiol. 10, 2628. https://doi.org/10.3389/fmicb.2019.02628 (2019).
Google Scholar
Bhaskar, J. T., Parli, B. V. & Tripathy, S. C. Spatial and seasonal variations of dinoflagellates and ciliates in the Kongsfjorden. Svalbard. Mar. Ecol. 41, 1–12 (2020).
Google Scholar
Skogseth, R. et al. Variability and decadal trends in the Isfjorden (Svalbard) ocean climate and circulation–An indicator for climate change in the European Arctic. Prog. Oceanog. 187, 102394. https://doi.org/10.1016/j.pocean.2020.102394 (2020).
Google Scholar
Ward, P. & Hirst, A. G. Oithona similis in a high latitude ecosystem: Abundance, distribution and temperature limitation of fecundity rates in a sac spawning copepod. Mar. Biol. 151, 1099–1110 (2007).
Google Scholar
Nielsen, T. G. & Sabatini, M. Role of cyclopoid copepods Oithona spp. in North Sea plankton communities. Mar. Ecol. Prog. Ser. 139, 79–93 (1996).
Google Scholar
Nilsen, F., Cottier, F., Skogseth, R. & Mattsson, S. Fjord–shelf exchanges controlled by ice and brine production: The interannual variation of Atlantic Water in Isfjorden, Svalbard. Cont. Shelf Res. 28, 1838–1853 (2008).
Google Scholar
Cohen, J. H., Berge, J., Moline, M. A., Johnsen, G. & Zolich, A. P. Light in the Polar Night. In Polar Night Marine Ecology Advances in Polar Ecology Vol. 4 (eds Berge, J. et al.) (Springer, New York, 2020). https://doi.org/10.1007/978-3-030-33208-2_3.
Google Scholar
Wiedmann, I., Reigstad, M., Marquardt, M., Vader, A. & Gabrielsen, T. M. Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—different from subarctic fjords?. J. Mar. Syst. 154, 192–205 (2015).
Google Scholar
Holm-Hansen, O. & Riemann, B. Chlorophyll a determination: Improvements in methodology. Oikos 30, 438–447 (1978).
Google Scholar
Stübner, E. I., Søreide, J. E., Reigstad, M., Marquardt, M. & Blachowiak-Samolyk, K. Year-round meroplankton dynamics in high-Arctic Svalbard. J. Plankton Res. 38, 522–536 (2016).
Google Scholar
Marquardt, M., Vader, A., Stübner, E. I., Reigstad, M. & Gabrielsen, T. M. Strong seasonality of marine microbial eukaryotes in a high-Arctic fjord (Isfjorden, West Spitsbergen). Appl. Environ. Microb. 82, 1868–1880 (2016).
Google Scholar
Trantner, D. J. & Fraser, H. Zooplankton sampling. Monographs on Oceanographic Methodology 2. (UNESCO, 1968).
Harris, R., Wiebe, L., Lenz, J., Skjoldal, H. R. & Huntley, M. ICES Zooplankton Methodology Manual (Academic Press, Cambridge, 2000).
Espinasse, M. et al. Interannual phenological variability in two North-East Atlantic populations of Calanus finmarchicus. Mar. Biol. Res. 14, 752–767 (2018).
Google Scholar
Mackas, D. L., Batten, S. & Trudel, M. Effects on zooplankton of a warmer ocean: Recent evidence from the Northeast Pacific. Prog. Oceanogr. 75, 223–252 (2007).
Google Scholar
Head, E. J. H., Melle, W., Pepin, P., Bagøien, E. & Broms, C. On the ecology of Calanus finmarchicus in the Subarctic North Atlantic: A comparison of population dynamics and environmental conditions in areas of the Labrador Sea-Labrador/Newfoundland Shelf and Norwegian Sea Atlantic and Coastal Waters. Prog. Oceanog. 114, 46–63 (2013).
Google Scholar
Kwasniewski, S. et al. Interannual changes in zooplankton on theWest Spitsbergen Shelf in relation to hydrography and their consequences for the diet of planktivorous seabirds. J. Mar. Sci. 69, 890–901 (2012).
Kiorboe, T. Sex, sex-ratios, and the dynamics of pelagic copepod populations. Oecol. 148, 40–50 (2006).
Google Scholar
Thackeray, et al. Food web de-synchronization in England’s largest lake: An assessment based on multiple phenological metrics. Glob. Change Biol. 19, 3568–3580 (2013).
Google Scholar
Anderson, M. J., Gorley, R. N. & Clarke, K. R. PERMANOVA+ for PRIMER: Guide to Software and Statistical Methods. (Primer-E Ltd., 2008).
Clarke, K. R. & Gorley, R. N. Primer. (Primer-E Ltd., 2001).
Anderson, M. J. & Braak, C. J. F. Permutation tests for multi-factorial analysis of variance. J. Stat. Comput. Simul. 73, 85–113 (2003).
Google Scholar
Schlitzer, R. Ocean Data View; https://odv.awi.de, (2021).
Walczowski, W., Piechura, J., Goszczko, I. & Wieczorek, P. Changes in Atlantic water properties: An important factor in the European Arctic marine climate. ICES J. Mar. Sci 69, 864–869 (2012).
Google Scholar
Wassman, P., Duarte, C. M., Agustí, S. & Sejr, M. L. Footprints of climate change in the Arctic marine ecosystem. Glob. Change Biol. 17, 1235–1249 (2010).
Google Scholar
Andrews, A. J. et al. Boreal marine fauna from the Barents Sea disperse to Arctic Northeast Greenland. Sci Rep 9, 5799 (2019).
Google Scholar
Atkinson, D. & Sibly, R. M. Why are organisms usually bigger in colder environments? Making sense of life history puzzle. Trends Ecol. Evol. 12, 235–239 (1997).
Google Scholar
Beaugrand, G., Ibanez, F. & Reid, P. C. Spatial seasonal and long term fluctuations of plankton in relation to hydroclimatic features in the English Channel, Celtic Sea and Bay of Biscay. Mar. Ecol. Prog. Ser. 200, 93–102 (2000).
Google Scholar
Beaugrand, G., Reid, P. C., Ibañez, F., Lindley, A. & Edwards, M. Reorganization of North Atlantic Marine Copepod Biodiversity and Climate. Science 31, 1692–1694 (2002).
Google Scholar
Coyle, K. O. et al. Climate change in the southeastern Bering Sea: Impacts on pollock stocks and implications for the oscillating control hypothesis. Fisher. Oceanogr. 20, 139–156 (2011).
Google Scholar
Edwards, M. & Richardson, A. J. The impact of climate change on the phenology of the plankton community and trophic mismatch. Nature 430, 881–884 (2004).
Google Scholar
Stevens, G. C. The latitudinal gradient in geographical range: How so many species coexist in the tropics. Am. Nat. 133, 240–256 (1989).
Google Scholar
Kortsch, S., Primicerio, R., Fossheim, M., Dolgov, A. V. & Aschan, M. Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists. Proc. R. Soc. B. 282, 20151546 (2015).
Google Scholar
Richardson, A. J. In hot water: Zooplankton and climate change. ICES J. Mar. Sci. 65, 279–295 (2008).
Google Scholar
Kwasniewski, S. A note on zooplankton of the Hornsund Fjord and its seasonal changes. Oceanografia 12, 7–27 (1990).
Piwosz, K. et al. Comparison of productivity and phytoplankton in a warm (Kongsfjorden) and a cold (Hornsund) Spitsbergen fjord in midsummer 2002. Polar Biol. 32, 549–559 (2009).
Google Scholar
Trudnowska, E., Basedow, S. L. & Blachowiak-Samolyk, K. Mid-summer mesozooplankton biomass, its size distribution, and estimated production within a glacial Arctic fjord (Hornsund, Svalbard). J. Mar. Syst. 137, 55–66 (2014).
Google Scholar
Castellani, C., Licandro, P., Fileman, E., di Capua, I. & Mazzocchi, M. G. Oithona similis likes it cool: Evidence from two long-term time series. J. Plankton Res. 38, 703–717 (2016).
Google Scholar
Cornwell, L. E. et al. Resilience of the copepod Oithona similis to climatic variability: Egg production, mortality, and vertical habitat partitioning. Front. Mar. Sci. https://doi.org/10.3389/fmars.2020.00029 (2020).
Google Scholar
Eiane, K. & Ohman, M. D. Stage-specific mortality of Calanus finmarchicus, Pseudocalanus elongatus and Oithona similis on Fladen Ground, North Sea, during a spring bloom. Mar. Ecol. Prog. Ser. 268, 183–193 (2004).
Google Scholar
Thor, P. et al. Post-spring bloom community structure of pelagic copepods in the Disko Bay, Western Greenland. J. Plankton Res. 27, 341–356 (2005).
Google Scholar
Dvoretsky, V. G. Seasonal mortality rates of Oithona similis (Cyclopoida) in a large Arctic fjord. Polar Sci. 6, 263–269 (2012).
Google Scholar
Ussing, H. H. The biology of some important plankton animals in the fjords of east Greenland. Medd Grønland 100–108 (1938).
Lonsdale, D. J., Caron, D. A., Dennett, M. R. & Schaffner, R. Predation by Oithona spp on protozooplankton in the Ross Sea. Antarctica. Deep-Sea Res. II 47, 3273–3283 (2000).
Castellani, C., Irigoien, X., Harris, R. P. & Lampitt, R. S. Feeding and egg production of Oithona similis in the North Atlantic. Mar. Ecol. Prog. Ser. 288, 173–182 (2005).
Google Scholar
Barth-Jensen, C. et al. Temperature-dependent egg production and egg hatching rates of small egg-carrying and broadcast-spawning copepods Oithona similis, Microsetella norvegica and Microcalanus pusillus. J. Plankton Res. 42, 564–580 (2020).
Google Scholar
Falk-Petersen, S., Pedersen, G., Kwasniewski, S., Hegseth, E. N. & Hop, H. Spatial distribution and life-cycle timing of zooplankton in the marginal ice zone of the Barents Sea during the summer melt season in 1995. J. Plankton Res. 21, 1249–1264 (1999).
Google Scholar
Gluchowska, M. et al. Interannual zooplankton variability in the main pathways of the Atlantic water flow into the Arctic Ocean (Fram Strait and Barents Sea branches). ICES J. Mar. Sci. 74, 1921–1936 (2017).
Google Scholar
Balazy, K., Trudnowska, E. & Błachowiak-Samołyk, K. Dynamics of Calanus copepodite structure during Little Auks’ breeding seasons in two different Svalbard locations. Water 11, 1405. https://doi.org/10.3390/w11071405 (2019).
Google Scholar
Hop, H. et al. The marine ecosystem of Kongsfjorden, Svalbard. Polar Res. 21, 167–208 (2002).
Google Scholar
Poje, A. The relationship between plankton and water mass properties in high Arctic (Svalbard) fjords. Clark Honors College Theses, (University of Oregon, 2016).
Falk-Petersen, S., Mayzaud, P., Kattner, G. & Sargent, J. R. Lipids and life strategy of Arctic Calanus. Mar. Biol. Res. 5, 18–39 (2009).
Google Scholar
Svensen, C. et al. Zooplankton communities associated with new and regenerated primary production in the Atlantic inflow North of Svalbard. Front. Mar. Sci. 6, 293. https://doi.org/10.3389/fmars.2019.00293 (2019).
Google Scholar
González, H. E. & Smetacek, V. The possible role of the cyclopoid copepod Oithona in retarding vertical flux of zooplankton faecal material. Mar. Ecol. Prog. Ser. 113, 233–246 (1994).
Google Scholar
Berge, J. et al. Unexpected levels of biological activity during the polar night offer new perspectives on a warming Arctic. Curr. Biol. 25, 2555–2561 (2015).
Google Scholar
Berge, J. et al. In the dark: A review of ecosystem processes during the Arctic polar night. Progr. Oceanog. 139, 258–271 (2015).
Google Scholar
Narcy, F. et al. Seasonal and individual variability of lipid reserves in Oithona similis (Cyclopoida) in an Arctic fjord. Polar Biol. 32, 233–242 (2009).
Google Scholar
Kattner, G. & Hagen, W. Lipids in marine copepods: Latitudinal characteristics and perspective to global warming. In Lipids in Aquatic Ecosystems (eds Kainz, M. et al.) 257–280 (Springer, New York, 2009).
Google Scholar
Rokkan Iversen, K. & Seuthe, L. Seasonal microbial processes in a high-latitude fjord (Kongsfjorden, Svalbard): I. Heterotrophic bacteria, picoplankton and nanoflagellates. Polar Biol. 34, 731–749 (2011).
Google Scholar
Auel, H. & Hagen, W. Mesozooplankton community structure, abundance and biomass in the central Arctic Ocean. Mar. Biol. 140, 1013–1021 (2002).
Google Scholar
Madsen, S., Nielsen, T. & Hansen, B. Annual population development and production by small copepods in Disko Bay, western Greenland. Mar. Biol. 155, 63–77 (2008).
Google Scholar
Corkett, C. J. & McLaren, I. A. The biology of Pseudocalanus. In Advances in Marine Biology Vol. 15 (eds Russell, F. S. & Yonge, M.) 1–231 (Academic Press, Cambridge, 1978).
Kwasniewski, S., Hop, H., Falk-Petersen, S. & Pedersen, G. Distribution of Calanus species in Kongsfjorden, a glacial fjord in Svalbard. J. Plankton Res. 2003(25), 1–20 (2003).
Google Scholar
Willis, K., Cottier, F., Kwasniewski, S., Wold, A. & Falk-Petersen, S. The influence of advection on zooplankton community composition in an Arctic fjord (Kongsfjorden, Svalbard). J. Mar. Syst. 61, 39–54 (2006).
Google Scholar
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