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Journal articles on the topic 'Subarctic Atlantic'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Klimstra, Jon D., and Paul I. Padding. "Harvest Distribution and Derivation of Atlantic Flyway Canada Geese." Journal of Fish and Wildlife Management 3, no. 1 (2012): 43–55. http://dx.doi.org/10.3996/032011-jfwm-023.

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Abstract Harvest management of Canada geese Branta canadensis is complicated by the fact that temperate- and subarctic-breeding geese occur in many of the same areas during fall and winter hunting seasons. These populations cannot readily be distinguished, thereby complicating efforts to estimate population-specific harvest and evaluate harvest strategies. In the Atlantic Flyway, annual banding and population monitoring programs are in place for subarctic-breeding (North Atlantic Population, Southern James Bay Population, and Atlantic Population) and temperate-breeding (Atlantic Flyway Residen

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2

Dyke, Arthur S., Janis E. Dale, and Roger N. McNeely. "Marine Molluscs as Indicators of Environmental Change in Glaciated North America and Greenland During the Last 18 000 Years." Géographie physique et Quaternaire 50, no. 2 (2007): 125–84. http://dx.doi.org/10.7202/033087ar.

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ABSTRACTDated mollusc collections are classified in assemblages to map paleo-faunistic zones. Hiatella arctica and Mya truncata account for almost half the records and comprise a restricted arctic assemblage. Arctic assemblages comprise 70% and arctic-dominated assemblages 80% of the database. Fifteen species dominate but 170 taxa are recorded. At last glacial maximum, the arctic zone extended from the Arctic Ocean to the Grand Banks. The boreal zone in the western Atlantic was compressed. The subarctic zone, which today dominates eastern Canada, was small. The boreal zone was extensive in the

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3

Osman, Matthew B., Sarah B. Das, Luke D. Trusel, et al. "Industrial-era decline in subarctic Atlantic productivity." Nature 569, no. 7757 (2019): 551–55. http://dx.doi.org/10.1038/s41586-019-1181-8.

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4

Stewart, Iain A., Kate F. Darling, Dick Kroon, Christopher M. Wade, and Simon R. Troelstra. "Genotypic variability in subarctic Atlantic planktic foraminifera." Marine Micropaleontology 43, no. 1-2 (2001): 143–53. http://dx.doi.org/10.1016/s0377-8398(01)00024-x.

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5

Arhan, Michel. "The North Atlantic Current and Subarctic Intermediate Water." Journal of Marine Research 48, no. 1 (1990): 109–44. http://dx.doi.org/10.1357/002224090784984605.

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6

Sentyabov, E. V. "Estimation of long-term changes in thermal conditions and distribution of Atlantic and Subarctic water in the XXI Century in the Norwegian Sea on area surveys data." Trudy VNIRO 192 (August 15, 2023): 162–71. http://dx.doi.org/10.36038/2307-3497-2023-192-162-171.

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Purpose of the work: assessing the spatial and temporal variability of thermal conditions in waters of various origins in the Norwegian Sea in the first decades of the 21st century. Materials: oceanographic data collected during the International Ecosystem Surveys in the Norwegian Sea in 2000–2021. Methods used: comparative data analysis, descriptive statistics methods, correlation analysis. Results: the “boxes”, temperature in which most fully describes the change in the temperature of the Atlantic and Subarctic waters of the Norwegian Sea, were identified. This is confirmed by the high corre

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7

Paulsen, ML, K. Riisgaard, M. St John, TF Thingstad, and TG Nielsen. "Heterotrophic nanoflagellate grazing facilitates subarctic Atlantic spring bloom development." Aquatic Microbial Ecology 78, no. 3 (2017): 161–76. http://dx.doi.org/10.3354/ame01807.

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8

Okumura, Yuko M., Clara Deser, Aixue Hu, Axel Timmermann, and Shang-Ping Xie. "North Pacific Climate Response to Freshwater Forcing in the Subarctic North Atlantic: Oceanic and Atmospheric Pathways." Journal of Climate 22, no. 6 (2009): 1424–45. http://dx.doi.org/10.1175/2008jcli2511.1.

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Abstract Sudden changes of the Atlantic meridional overturning circulation (AMOC) are believed to have caused large, abrupt climate changes over many parts of the globe during the last glacial and deglacial period. This study investigates the mechanisms by which a large freshwater input to the subarctic North Atlantic and an attendant rapid weakening of the AMOC influence North Pacific climate by analyzing four different ocean–atmosphere coupled general circulation models (GCMs) under present-day or preindustrial boundary conditions. When the coupled GCMs are forced with a 1-Sv (Sv ≡ 106 m3 s−

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9

Schneider, M., K. Yoshimura, F. Hase, and T. Blumenstock. "The ground-based FTIR network's potential for investigating the atmospheric water cycle." Atmospheric Chemistry and Physics 10, no. 7 (2010): 3427–42. http://dx.doi.org/10.5194/acp-10-3427-2010.

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Abstract. We present tropospheric H216O and HD16O/H216O vapour profiles measured by ground-based FTIR (Fourier Transform Infrared) spectrometers between 1996 and 2008 at a northern hemispheric subarctic and subtropical site (Kiruna, Northern Sweden, 68° N and Izaña, Tenerife Island, 28° N, respectively). We compare these measurements to an isotope incorporated atmospheric general circulation model (AGCM). If the model is nudged towards meteorological fields of reanalysis data the agreement is very satisfactory on time scales ranging from daily to inter-annual. Taking the Izaña and Kiruna measu

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10

Shiomoto, Akihiro. "Chlorophyll-a and primary production during spring in the oceanic region of the Oyashio Water, the north-western Pacific." Journal of the Marine Biological Association of the United Kingdom 80, no. 2 (2000): 343–54. http://dx.doi.org/10.1017/s0025315499001927.

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The concentration of phytoplankton chlorophyll-a (chl-a) and primary production within the euphotic zone (at depths corresponding to 100, 30, 10 and 2% light) were measured in the oceanic region of the Oyashio Water, the north-western Pacific, in spring of 1993, 1994 and 1995. The chl-a concentrations ranged from 0.15 to 6.98 mg m−3 and the range of chl-a standing stock integrated from the surface to the 2% light depth was between 4 and 43 mg m−2. The daily primary production integrated from the surface to the 2 and 0.2% light depths was estimated to be between 94 and 1695 mg C m−2 d−1 and bet

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11

Nicolle, Marie, Maxime Debret, Nicolas Massei, et al. "Climate variability in the subarctic area for the last 2 millennia." Climate of the Past 14, no. 1 (2018): 101–16. http://dx.doi.org/10.5194/cp-14-101-2018.

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Abstract. To put recent climate change in perspective, it is necessary to extend the instrumental climate records with proxy data from paleoclimate archives. Arctic climate variability for the last 2 millennia has been investigated using statistical and signal analyses from three regionally averaged records from the North Atlantic, Siberia and Alaska based on many types of proxy data archived in the Arctic 2k database v1.1.1. In the North Atlantic and Alaska, the major climatic trend is characterized by long-term cooling interrupted by recent warming that started at the beginning of the 19th c

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12

Kim, Hyerim, and Soon-Il An. "On the subarctic North Atlantic cooling due to global warming." Theoretical and Applied Climatology 114, no. 1-2 (2012): 9–19. http://dx.doi.org/10.1007/s00704-012-0805-9.

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13

Peng, Xuefeng, Sarah E. Fawcett, Nicolas van Oostende, et al. "Nitrogen uptake and nitrification in the subarctic North Atlantic Ocean." Limnology and Oceanography 63, no. 4 (2018): 1462–87. http://dx.doi.org/10.1002/lno.10784.

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14

MOROZOV, GRIGORI, NATALYA ANISIMOVA STRELKOVA, OLGA ZIMINA, and RUSHAN SABIROV. "A preliminary account of the Arctic/Subarctic Suberites (Porifera: Demospongiae) fauna." Zootaxa 5357, no. 1 (2023): 50–70. http://dx.doi.org/10.11646/zootaxa.5357.1.2.

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Sponges of the genus Suberites are quite polymorphic and diverse, yet the delimitation of species within the group has always been challenging since there are only a few spicule types that show little, or sometimes no variation in closely allied species. Koltun (1966) created a variety, S. domuncula var. ficus—something of a “dustbin assemblage”—with a geographic distribution ranging from the North Atlantic, across the Arctic, to the North Pacific Oceans. Our study shows that in the Arctic/Subarctic region, boreal S. ficus is replaced by a mix of closely related species: in the western-Arctic—

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15

Golikov, Alexey V., Rushan M. Sabirov, Martin E. Blicher, Gudmundur Gudmundson, Olga L. Zimina, and Denis V. Zakharov. "First record of the whip-lash squid, Mastigoteuthis agassizii Verrill, 1881 (Mollusca: Cephalopoda: Mastigoteuthidae) in the Subarctic Atlantic, with notes on its morphology and biology." Journal of Natural History 52, no. 35-36 (2018): 2317–29. https://doi.org/10.1080/00222933.2018.1536229.

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Golikov, Alexey V., Sabirov, Rushan M., Blicher, Martin E., Gudmundson, Gudmundur, Zimina, Olga L., Zakharov, Denis V. (2018): First record of the whip-lash squid, Mastigoteuthis agassizii Verrill, 1881 (Mollusca: Cephalopoda: Mastigoteuthidae) in the Subarctic Atlantic, with notes on its morphology and biology. Journal of Natural History 52 (35-36): 2317-2329, DOI: 10.1080/00222933.2018.1536229, URL: http://dx.doi.org/10.1080/00222933.2018.1536229

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16

Matthiessen, Jens, Jochen Knies, Christoph Vogt, and Ruediger Stein. "Pliocene palaeoceanography of the Arctic Ocean and subarctic seas." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 367, no. 1886 (2008): 21–48. http://dx.doi.org/10.1098/rsta.2008.0203.

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The Pliocene is important in the geological evolution of the high northern latitudes. It marks the transition from restricted local- to extensive regional-scale glaciations on the circum-Arctic continents between 3.6 and 2.4 Ma. Since the Arctic Ocean is an almost land-locked basin, tectonic activity and sea-level fluctuations controlled the geometry of ocean gateways and continental drainage systems, and exerted a major influence on the formation of continental ice sheets, the distribution of river run-off, and the circulation and water mass characteristics in the Arctic Ocean. The effect of

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17

Friedland, Kevin D., and Christopher D. Todd. "Changes in Northwest Atlantic Arctic and Subarctic conditions and the growth response of Atlantic salmon." Polar Biology 35, no. 4 (2011): 593–609. http://dx.doi.org/10.1007/s00300-011-1105-z.

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18

Ambrosimov, A. K., N. A. Diansky, A. A. Kluvitkin, and V. A. Melnikov. "LONG-TERM VARIABILITY OF CURRENTS IN THE SUBARCTIC FRONT OF THE ATLANTIC OCEAN." Journal of Oceanological Research 47, no. 2 (2019): 246–65. http://dx.doi.org/10.29006/1564-2291.jor-2019.47(2).15.

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Based on time series of near-bottom current velocities and temperatures obtained in the period June, 2016 to July, 2017, at three points in the Atlantic Subarctic Front, along with the use of multi-year (since 1993 up to now) satellite ocean surface sounding data, multi-scale fluctuations of ocean surface and near-bottom flows over the western and eastern flanks of the Reykjanes ridge, as well as near Hatton Rise, on the Rokoll plateau, are studied. Hydrological profiles were carried out from the ocean surface to the bottom with readings every 10 m, when setting and retrieving the buoy station

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19

Polyakov, Igor V., Randi B. Ingvaldsen, Andrey V. Pnyushkov, et al. "Fluctuating Atlantic inflows modulate Arctic atlantification." Science 381, no. 6661 (2023): 972–79. http://dx.doi.org/10.1126/science.adh5158.

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Enhanced warm, salty subarctic inflows drive high-latitude atlantification, which weakens oceanic stratification, amplifies heat fluxes, and reduces sea ice. In this work, we show that the atmospheric Arctic Dipole (AD) associated with anticyclonic winds over North America and cyclonic winds over Eurasia modulates inflows from the North Atlantic across the Nordic Seas. The alternating AD phases create a “switchgear mechanism.” From 2007 to 2021, this switchgear mechanism weakened northward inflows and enhanced sea-ice export across Fram Strait and increased inflows throughout the Barents Sea.

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20

Hedger, Richard D., Line E. Sundt-Hansen, Torbjørn Forseth, et al. "Predicting climate change effects on subarctic–Arctic populations of Atlantic salmon (Salmo salar)." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 2 (2013): 159–68. http://dx.doi.org/10.1139/cjfas-2012-0205.

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We predict an increase in parr recruitment and smolt production of Atlantic salmon (Salmo salar) populations along a climate gradient from the subarctic to the Arctic in western and northern Norway in response to future climate change. Firstly, we predicted local stream temperature and discharge from downscaled data obtained from Global Climate Models. Then, we developed a spatially explicit individual-based model (IBM) parameterized for the freshwater stage, with combinations of three different postsmolt survival probabilities reflecting different marine survival regimes. The IBM was run for

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21

Martin, J. H. A., and K. A. Mitchell. "Influence of Sea Temperature upon the Numbers of Grilse and Multi-Sea-Winter Atlantic Salmon (Salmo salar) Caught in the Vicinity of the River Dee (Aberdeenshire)." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 9 (1985): 1513–21. http://dx.doi.org/10.1139/f85-189.

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The possible influence of sea temperature upon the age of return of Atlantic salmon (Salmo salar) was examined using the catch and weight data of grilse and multi-sea-winter (MSW) salmon of the Aberdeen Harbour Board caught either within or adjacent to the River Dee (Aberdeenshire). This data set, apart from a 10-yr period of commercial confidentiality, is very suitable because uniformity of effort allowed catch per unit effort to be calculated. Only in the last few years was external pressure (high seas fishing) applied to the system. Various temperature series were examined but the known loc

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22

Schneider, M., K. Yoshimura, F. Hase, and T. Blumenstock. "The ground-based FTIR network's potential for investigating the atmospheric water cycle." Atmospheric Chemistry and Physics Discussions 9, no. 6 (2009): 26199–235. http://dx.doi.org/10.5194/acpd-9-26199-2009.

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Abstract. We present tropospheric H216O and HD16O/H216O vapour profiles measured by ground-based FTIR (Fourier Transform Infrared) spectrometers between 1996 and 2008 at a northern hemispheric subarctic and subtropical site (Kiruna, Northern Sweden, 68° N and Izaña, Tenerife Island, 28° N, respectively). We compare these measurements to an isotope incorporated atmospheric general circulation model (AGCM). If the model is nudged towards meteorological fields of reanalyses data the agreement is very satisfactory on time scales ranging from daily to inter-annual which demonstrates the good qualit

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23

Petrov, K. M. "Principles of landscape-bionomic zoning of the Barents Sea." Arctic and Innovations 2, no. 2 (2024): 6–17. http://dx.doi.org/10.21443/3034-1434-2024-2-2-6-17.

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Landscape-bionomic zoning reveals the effect of hydrological and geomorphological links of the physical-geographical process on the bionomic differentiation of the Barents Sea floor. The polar front separates the Arctic water masses and communities from the subarctic ones; under the influence of warm Atlantic Current branches, extrazonal boreal biomes are formed. The geomorphological structure represents the lithogenic basis that determines the formation of bionomic types of the Barents Sea floor. It was established that each geomorphological region corresponds to one macrozoobenthos group.

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Dempson, J. Brian, Victoria A. Braithwaite, Denis Doherty, and Michael Power. "Stable isotope analysis of marine feeding signatures of Atlantic salmon in the North Atlantic." ICES Journal of Marine Science 67, no. 1 (2009): 52–61. http://dx.doi.org/10.1093/icesjms/fsp227.

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Abstract Dempson, J. B., Braithwaite, V. A., Doherty, D., and Power, M. 2010. Stable isotope analysis of marine feeding signatures of Atlantic salmon in the North Atlantic. – ICES Journal of Marine Science, 67: 52–61. Differences in the marine feeding of three geographically distinct populations of Atlantic salmon (Salmo salar) in the North Atlantic (Conne River, Newfoundland; Koksoak River, Ungava Bay, Québec; River Erne, northwest Ireland) were examined using analyses of stable isotopes of carbon and nitrogen (δ13C and δ15N) and contrasted with isotope signatures obtained from a sample of sa

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Whitt, Daniel B., and Malte F. Jansen. "Slower nutrient stream suppresses Subarctic Atlantic Ocean biological productivity in global warming." Proceedings of the National Academy of Sciences 117, no. 27 (2020): 15504–10. http://dx.doi.org/10.1073/pnas.2000851117.

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Earth system models (ESMs) project that global warming suppresses biological productivity in the Subarctic Atlantic Ocean as increasing ocean surface buoyancy suppresses two physical drivers of nutrient supply: vertical mixing and meridional circulation. However, the quantitative sensitivity of productivity to surface buoyancy is uncertain and the relative importance of the physical drivers is unknown. Here, we present a simple predictive theory of how mixing, circulation, and productivity respond to increasing surface buoyancy in 21st-century global warming scenarios. With parameters constrai

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Véron, A. J., T. M. Church, I. Rivera-Duarte, and A. R. Flegal. "Stable lead isotopic ratios trace thermohaline circulation in the subarctic North Atlantic." Deep Sea Research Part II: Topical Studies in Oceanography 46, no. 5 (1999): 919–35. http://dx.doi.org/10.1016/s0967-0645(99)00009-0.

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Westberry, Toby K., Patrick Schultz, Michael J. Behrenfeld, et al. "Annual cycles of phytoplankton biomass in the subarctic Atlantic and Pacific Ocean." Global Biogeochemical Cycles 30, no. 2 (2016): 175–90. http://dx.doi.org/10.1002/2015gb005276.

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28

Chen, Tsing-Chang. "Characteristics of Summer Stationary Waves in the Northern Hemisphere." Journal of Climate 23, no. 17 (2010): 4489–507. http://dx.doi.org/10.1175/2010jcli3149.1.

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Abstract Summer stationary waves in the Northern Hemisphere are separated by a midlatitude transition zone into the subtropical monsoon regime with a vertical phase reversal and the subarctic regime with a vertically uniform structure. The dynamics and maintenance mechanism of the subtropical stationary waves have been investigated in the context of monsoon circulation. Depicted in terms of streamfunction with 40-yr ECMWF Re-Analysis (ERA-40), the dynamic characteristics of stationary waves in the transition zone and the subarctic region are thus the focus of this study. The dynamics and maint

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29

Grigoryev, S. S. "DISTRIBUTION OF ALASKA POLLOCK (GADUS CHALCOGRAMMUS) IN NORTHERN PACIFIC OCEAN: A RESULT OF INFLUENCE OF ECOLOGICAL FACTORS DURING EARLY DEVELOPMENT." Bulletin оf Kamchatka State Technical University, no. 55 (2021): 73–88. http://dx.doi.org/10.17217/2079-0333-2021-55-73-88.

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The hypothesis of invasion of Alaska pollock (Gadus chalcogrammus) to the Northern Pacific Ocean during the Bering Strait opening is discussed. Alaska pollock, a fish from the family Gadidae, is the most widespread and abundant commercial species in northern part of the Pacific Ocean. It is considered that the northern part of the Atlantic Ocean was the center of formation of Gadids in the Northern hemisphere. Species Gadus morhua and G. chalcogrammus differ on their features of early ontogenesis and requirements to environment conditions. Life history of the Atlantic cod G. morhua depends on

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KRŠINIĆ, FRANO. "Fauna of tintinnids (Tintinnida, Ciliata) during an Arctic-Antarctic cruise, with the S/V “Croatian Tern”." Zootaxa 4399, no. 3 (2018): 301. http://dx.doi.org/10.11646/zootaxa.4399.3.1.

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An investigation of large tintinnids was carried out during the Arctic-Antarctic cruise aboard the S/V “Croatian Tern” in the period from 1994 to 1997. Samples were collected at 33 stations by vertical tows with a Nansen net with a 53 µm mesh size in the Mediterranean Sea, North Atlantic, Labrador Sea, Baffin Bay, the Beaufort, Chukchi and Bering Seas, East North Pacific, South Pacific, South East Pacific, Scotia Sea, and South West Atlantic. A total of 47 species of tintinnids were found, with the greatest diversity in the Tropical areas of the Pacific, Arctic and Subarctic. A very high total

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31

Hansen, Jesper. "Brachiopods of the northern North Atlantic and Arctic, with a focus on Norwegian fauna." Fauna norvegica 43 (June 18, 2024): 12–68. http://dx.doi.org/10.5324/fn.v43i0.5110.

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Ten species of Brachiopoda have been found living around Norway, including the Arctic Svalbard and Jan Mayen, while 26 are recorded here for the region extending from the Arctic Ocean in the North to the northernmost North Atlantic and Celtic Sea in the South. This paper provides an identification key and short descriptions for all species, including the new species Xenobrochus islandicus n. sp. from southwest of Iceland and the new East Atlantic species Dallina lusitanica n. sp. The distributions of all species have been reviewed and were generally found to follow the oceanic temperature, sal

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Adey, Walter H., Jazmin J. Hernandez-Kantun, Paul W. Gabrielson, Merinda C. Nash, and Lee-Ann C. Hayek. "Phymatolithon (Melobesioideae, Hapalidiales) in the Boreal–Subarctic Transition Zone of the North Atlantic." Smithsonian Contributions to Marine Sciences, no. 41 (April 6, 2018): 2–90. http://dx.doi.org/10.5479/si.1943-667x.41.

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Washburn, Libe, Brian M. Emery, Burton H. Jones, and Daniel G. Ondercin. "Eddy stirring and phytoplankton patchiness in the subarctic North Atlantic in late summer." Deep Sea Research Part I: Oceanographic Research Papers 45, no. 9 (1998): 1411–39. http://dx.doi.org/10.1016/s0967-0637(98)00023-5.

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Amundsen, P. ‐A, H. ‐M Gabler, T. Herfindal, and L. S. Riise. "Feeding chronology of Atlantic salmon parr in subarctic rivers: consistency of nocturnal feeding." Journal of Fish Biology 56, no. 3 (2000): 676–86. http://dx.doi.org/10.1111/j.1095-8649.2000.tb00765.x.

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Hillaire-Marcel, Claude, and Anne de Vernal. "lsotopic and Palynological Records of the Late Pleistocene in Eastern Canada and Adjacent Ocean Basins." Géographie physique et Quaternaire 43, no. 3 (2007): 263–90. http://dx.doi.org/10.7202/032783ar.

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ABSTRACT Correlations of isotopic and palynological records from deep sea cores in Baffin Bay and Labrador Sea with terrestrial palynological sequences, supported by a few Th/U chronological controls, allow the establishment of a regional climatostratigraphic scheme for the Late Pleistocene climatic fluctuations in eastern Canada. During the climatic optimum of isotopic substage 5e, warmer conditions than present prevailed both on land and in oceanic surface water masses. The 5e/5d transition is marked by an abrupt shift in 818O values in Baffin Bay and Labrador Sea as a consequence of ice gro

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Kenigson, J. S., and M. L. Timmermans. "Nordic Seas Hydrography in the Context of Arctic and North Atlantic Ocean Dynamics." Journal of Physical Oceanography 51, no. 1 (2021): 101–14. http://dx.doi.org/10.1175/jpo-d-20-0071.1.

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AbstractThe hydrography of the Nordic seas, a critical site for deep convective mixing, is controlled by various processes. On one hand, Arctic Ocean exports are thought to freshen the North Atlantic Ocean and the Nordic seas, as in the Great Salinity Anomalies (GSAs) of the 1970s–1990s. On the other hand, the salinity of the Nordic seas covaries with that of the Atlantic inflow across the Greenland–Scotland Ridge, leaving an uncertain role for Arctic Ocean exports. In this study, multidecadal time series (1950–2018) of the Nordic seas hydrography, Subarctic Front (SAF) in the North Atlantic O

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Hald, M., G. R. Salomonsen, K. Husum, and L. J. Wilson. "A 2000 year record of Atlantic Water temperature variability from the Malangen Fjord, northeastern North Atlantic." Holocene 21, no. 7 (2011): 1049–59. http://dx.doi.org/10.1177/0959683611400457.

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A high-resolution sedimentary record from the subarctic Malangen fjord in northern Norway, northeastern North Atlantic has been investigated in order to reconstruct variations in influx of Atlantic Water for the last 2000 years. The fjord provides a regional oceanographic climatic signal reflecting changes in the North Atlantic heat flux at this latitude because of its deep sill and the relatively narrow adjoining continental shelf. The reconstructions are based on oxygen and carbon isotopic studies of benthic foraminifera from a high accumulation basin in the Malangen fjord, providing subdeca

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Tjiputra, J. F., and A. M. E. Winguth. "Sensitivity of sea-to-air CO<sub>2</sub> flux to ecosystem parameters from an adjoint model." Biogeosciences 5, no. 2 (2008): 615–30. http://dx.doi.org/10.5194/bg-5-615-2008.

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Abstract. An adjoint model is applied to examine the biophysical factors that control surface pCO2 in different ocean regions. In the tropical Atlantic and Indian Oceans, the annual cycle of pCO2 in the model is highly dominated by temperature variability, whereas both the temperature and dissolved inorganic carbon (DIC) are important in the tropical Pacific. In the high-latitude North Atlantic and Southern Oceans, DIC variability mainly drives the annual cycle of surface pCO2. Phosphate addition significantly increases the carbon uptake in the tropical and subtropical regions, whereas nitrate

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Alioravainen, Nico, Panu Orell, and Jaakko Erkinaro. "Long-Term Trends in Freshwater and Marine Growth Patterns in Three Sub-Arctic Atlantic Salmon Populations." Fishes 8, no. 9 (2023): 441. http://dx.doi.org/10.3390/fishes8090441.

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The rapid warming of the Northern hemisphere has especially challenged the evolvability of anadromous fish species, such as Atlantic salmon (Salmo salar), which must cope with drastically different environments depending on their life-history stage. We studied the long-term trends in, and the effects of environmental factors and life-history traits on, Atlantic salmon growth rates in both freshwater and in the ocean using c. 35,000 scale samples collected across 48 years from spawners returning to three tributaries of the subarctic River Teno in the northernmost parts of Finland and Norway (70

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Romero, O. E., G. E. A. Swann, D. A. Hodell, P. Helmke, D. Rey, and B. Rubio. "A highly productive Subarctic Atlantic during the Last Interglacial and the role of diatoms." Geology 39, no. 11 (2011): 1015–18. http://dx.doi.org/10.1130/g32454.1.

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Niemelä, E., P. Orell, J. Erkinaro, et al. "Previously spawned Atlantic salmon ascend a large subarctic river earlier than their maiden counterparts." Journal of Fish Biology 69, no. 4 (2006): 1151–63. http://dx.doi.org/10.1111/j.1095-8649.2006.01190.x.

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Behrenfeld, Michael J., Scott C. Doney, Ivan Lima, Emmanuel S. Boss, and David A. Siegel. "Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom." Global Biogeochemical Cycles 27, no. 2 (2013): 526–40. http://dx.doi.org/10.1002/gbc.20050.

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Biastoch, Arne, Claus W. Böning, Julia Getzlaff, Jean-Marc Molines, and Gurvan Madec. "Causes of Interannual–Decadal Variability in the Meridional Overturning Circulation of the Midlatitude North Atlantic Ocean." Journal of Climate 21, no. 24 (2008): 6599–615. http://dx.doi.org/10.1175/2008jcli2404.1.

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Abstract The causes and characteristics of interannual–decadal variability of the meridional overturning circulation (MOC) in the North Atlantic are investigated with a suite of basin-scale ocean models [the Family of Linked Atlantic Model Experiments (FLAME)] and global ocean–ice models (ORCA), varying in resolution from medium to eddy resolving (½°–1/12°), using various forcing configurations built on bulk formulations invoking atmospheric reanalysis products. Comparison of the model hindcasts indicates similar MOC variability characteristics on time scales up to a decade; both model archite

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Niemelä, Eero, Jaakko Erkinaro, J. Brian Dempson, et al. "Temporal synchrony and variation in abundance of Atlantic salmon (Salmo salar) in two subarctic Barents Sea rivers: influence of oceanic conditions." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 12 (2004): 2384–91. http://dx.doi.org/10.1139/f04-208.

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Long-term variation in Atlantic salmon (Salmo salar) stocks was analyzed in two Barents Sea rivers, the Teno and Näätämöjoki, that represent the northernmost distribution area of the species. In contrast to most of the North Atlantic area, these rivers are among a group of northern salmon rivers that, despite wide annual variation in catches, demonstrate no consistent trend for declining abundance. Variations in abundance were generally synchronous for the total catch and numbers of 1-sea-winter (1SW) and 2SW salmon during period of 19722003. Part of the variation observed in catches could be

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Cong, Shaoguang, Allan C. Ashworth, Donald P. Schwert, and Stanley M. Totten. "Fossil Beetle Evidence for a Short Warm Interval near 40,000 yr B.P. at Titusville, Pennsylvania." Quaternary Research 45, no. 2 (1996): 216–25. http://dx.doi.org/10.1006/qres.1996.0022.

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AbstractA brief cold–warm–cold climate change during the middle Wisconsinan is described for the first time in North America, based on fossil beetle assemblages at Titusville, Pennsylvania. AMS dating of insect chitin and wood suggests the change occurred between 39,000 and 43,500 yr B.P. Basal peats in river terrace deposits contain arctic–subarctic beetle species representing a climate similar to that found at treeline in Canada, where mean July temperatures range from 10° to 13°C. These cold-adapted beetles were replaced by species representing a climate similar to the mixed coniferous–deci

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Seidenkrantz, Marit-Solveig, and Karen Luise Knudsen. "Eemian Climatic and Hydrographical Instability on a Marine Shelf in Northern Denmark." Quaternary Research 47, no. 2 (1997): 218–34. http://dx.doi.org/10.1006/qres.1996.1868.

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Benthic foraminifera and stable isotope data from the last interglaciation (Eemian, substage 5e) from a borehole at Skagen, Denmark, provide evidence for major environmental and hydrographic changes during this period. During the first millennium of the Eemian, water masses covering northern Denmark became gradually warmer. Temperate conditions prevailed during most of the interglaciation, but these were interrupted by two periods with decreased water temperatures. The first cooling (Event S-1) was not very distinct at Skagen, but the second (Event S-2), seen in both the foraminiferal and oxyg

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Abyzova, Galina Anatolievna, Mikhail Aleksandrovich Nikitin, Olga Vladimirovna Popova, and Anna Fedorovna Pasternak. "Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea." PeerJ 6 (November 6, 2018): e5709. http://dx.doi.org/10.7717/peerj.5709.

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Background Pelagic pteropods Limacina helicina are widespread and can play an important role in the food webs and in biosedimentation in Arctic and Subarctic ecosystems. Previous publications have shown differences in the genetic structure of populations of L. helicina from populations found in the Pacific Ocean and Svalbard area. Currently, there are no data on the genetic structure of L. helicina populations in the seas of the Siberian Arctic. We assessed the genetic structure of L. helicina from the Kara Sea populations and compared them with samples from around Svalbard and the North Pacif

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Sparks, Rebecca, Michael Ford, and David Abrahamson. "Relating Ctenophore Population to Water Mass Indices in the Northeast U.S. Continental Shelf Ecosystem." International Journal of Oceanography 2015 (March 4, 2015): 1–6. http://dx.doi.org/10.1155/2015/728753.

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Ctenophores exist throughout the Northeast U.S. Continental Shelf Ecosystem, but the underlying mechanisms that control ctenophore populations at this scale are not clear. Ctenophore population data over the last 30 years coincides with changes in several water masses on the shelf, but discovering which water mass was most influential was problematic without mechanistic clarity. This paper strives to identify the relationship between oceanography and ctenophore populations over the last 30 years. Using a numerical modeling approach, we found a strong relationship between the North Atlantic Osc

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Vázquez-Rodríguez, M., F. F. Pérez, A. Velo, A. F. Ríos, and H. Mercier. "Observed acidification trends in North Atlantic water masses." Biogeosciences 9, no. 12 (2012): 5217–30. http://dx.doi.org/10.5194/bg-9-5217-2012.

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Abstract. The lack of observational pH data has made it difficult to assess recent rates of ocean acidification, particularly in the high latitudes. Here we present a time series that spans over 27 yr (1981–2008) of high-quality carbon system measurements in the North Atlantic, which comprises fourteen cruises and covers the important water mass formation areas of the Irminger and Iceland Basins. We provide direct quantification of acidification rates in upper and intermediate North Atlantic waters. The highest rates were associated with surface waters and with Labrador Sea Water (LSW). The Su

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Gislason, Astthor, and Teresa Silva. "Abundance, composition, and development of zooplankton in the Subarctic Iceland Sea in 2006, 2007, and 2008." ICES journal of marine science : journal du conseil 69, no. 7 (2012): 1263–76. https://doi.org/10.1093/icesjms/fss070.

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A large-scale study of zooplankton from surface waters and depth-stratified sampling at selected sites in the Iceland Sea was conducted during the years 2006–2008. The abundance of mesozooplankton was low during winter, when animals were mostly confined to the colder (∼0°C) and deeper (∼200–1000 m) layers, and peaked during late summer (∼11–18 g dry weight m−2, ∼300 000–400 000 ind. m−2), when animals resided mainly above the 50–100-m depth range. Diversity was greatest near the shelf edges and least in the central Iceland Sea. Around 32% of mesozooplankton variability was explained by six var

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