Late-glacial and Holocene paleoceanography and sedimentary environments in the St. Anna Trough, Eurasian Arctic Ocean margin

Hald, Morten; Kolstad, Vidar; Polyak, Leonid; Forman, Steven L.; Herlihy, Frances A.; Ivanov, G. I.; Nescheretov, Alexander

doi:10.1016/s0031-0182(98)00133-3

Cited by 83 publications

(56 citation statements)

References 38 publications

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“…The heat transport of the Atlantic water has shown considerable variations during the Holocene (Hald et al 1996, 1999, Duplessy et al 2001. Climatic conditions in and around Svalbard are a minor but important detail in the large climatic system of the Barents Sea and adjoining Arctic areas.…”

Section: In Uence Of Atlantic Watermentioning

confidence: 99%

Radiocarbon-datedMytilus edulisandModiolus modiolusfrom northern Svalbard: Climatic implications

Salvigsen¹

2002

Norsk Geografisk Tidsskrift - Norwegian Journal of Geography

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Eighteen new age determination s on Mytilus edulis shells from northern Svalbard and two new age determination s on Modiolus modiolus shells are presented. Mytilus edulis appeared on the northern coast of Spitsbergen c. 9400 yr BP. Its maximum extension there seems to have been c. 7250 yr BP, which is also indicativ e of a climatic optimum. The rst nding of Modiolu s modiolus shells from northern Spitsbergen is reported, and revealed the age of c. 8300 yr BP, which is also indicativ e of marine climatic optimum conditions . Mytilus lived at the head of Woodfjorden until at least 5300 yr BP, but it is not possible to date its nal disappearance from the northern coast. Mytilus has been absent from large parts of the coasts of Svalbard during the entire Holocene, indicatin g limited in uence of warm Atlantic water there. Recent reports of living Mytilus edulis on Bjørnøya indicate a probable new occurrence there, and the question about a further immigration to Spitsbergen should be kept in mind. Such a faunistic change may provide data about a more general climatic warming in this part of the Arctic.

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Section: In Uence Of Atlantic Watermentioning

confidence: 99%

Radiocarbon-datedMytilus edulisandModiolus modiolusfrom northern Svalbard: Climatic implications

Salvigsen¹

2002

Norsk Geografisk Tidsskrift - Norwegian Journal of Geography

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“…A majority of the paleoclimatic studies from the deeper oceanic regions are based on planktic foraminifera due to their high abundance in deeper ocean, whereas benthic foraminifera are preferred in such studies from shallow waters as planktic foraminifera are rare in near-shore environments. Benthic foraminifera from shallow water regions have been used to infer monsoon intensity, seawater temperature, productivity, oxygen availability, etc Hald et al, 1999;Leorri et al, 2006;Majewski & Anderson, 2009;Hengstum et al, 2010). It is essential to understand the effect of change in physical and chemical parameters on the benthic foraminiferal population and morphology, to apply the benthic foraminiferal characteristics for paleoclimatic reconstruction.…”

Section: Introductionmentioning

confidence: 99%

Difference in optimum temperature for growth and reproduction in benthic foraminifer Rosalina globularis: Implications for paleoclimatic studies

Saraswat

Nigam

Pachkhande

2011

Journal of Experimental Marine Biology and Ecology

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The seawater temperature is an important physical parameter that affects marine benthic community.The effect of seawater temperature however is not consistent throughout various groups of marine benthos. Here, juvenile specimens of marginal marine species Rosalina globularis were subjected to different temperatures (20°C, 25°C, 27°C, 30°C and 35°C), to understand the effect of temperature on growth and reproduction in benthic foraminifera. The growth of the specimens was recorded till the specimens matured and reproduced. It was observed that out of five different temperatures, optimum growth took place at 30°C. The growth in rest of the specimens subjected to either higher or lower temperatures was comparatively less. However, the highest percentage of reproduction was reported in the specimens subjected to 27°C temperature. None of the specimens kept at 20°C reproduced whereas only one specimen reproduced at 35°C temperature. Based on this experiment, it is concluded that Rosalina globularis can tolerate temperature variations from 20°C to 35°C and further that the optimum temperatures for growth and reproduction are different. The study shows that the ambient seawater temperature affects the growth, survival and reproduction in benthic foraminifera. The study further indicates that variation in morphology and abundance of benthic foraminifera, might reflect different climatic conditions.

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“…There have been several studies of the Holocene proxy records from these areas, based mainly on benthic foraminifer assemblages and stable isotopes (Polyak and Mikhailov, 1996;Hald et al, 1999;Duplessy et al, 2001;Lubinski et al, 2001). These results indicate noticeable variations of hydrographic conditions on millennial and submillennial time-scales.…”

Section: Introductionmentioning

confidence: 99%

Holocene variations of sea‐surface conditions in the southeastern Barents Sea, reconstructed from dinoflagellate cyst assemblages

Voronina

Polyak

Vernal

et al. 2001

J Quaternary Science

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Palynomorphs were analysed in two sediment cores from the southeastern Barents Sea representing the past 8.3 and 4.4 kyr. High dinocyst contents and species diversity enabled the application of the best analogue method to quantitatively reconstruct sea-surface salinities, temperatures and ice cover using 677 modern reference sites from the North Atlantic and Arctic seas, including new data from the Barents Sea reported here. At the southern core site, where waters are affected by the Atlantic inflow, sea-surface conditions were relatively warm and stable between ca. 8000 and 5000 calendar yr BP. In contrast, the past 5 kyr had periods with cooler temperatures and extended ice cover, fluctuating mostly at 1-1.5 kyr frequencies at both sites. Most pronounced coolings occurred around 8.1, 5, 3.5-3.2 and 2.5 ka. The northern site additionally shows younger cooling events, tentatively dated to 1.4, 0.3 and 0.1 ka. Identified variations in seasurface conditions indicate changes in Atlantic water inputs to the Barents Sea. Our results generally correlate to palaeoclimatic reconstructions from northwestern Eurasia, exemplified by palynological records from Karelia. This correlation suggests that sea-surface variations in the Barents Sea reflect large-scale changes in atmospheric and oceanic interactions between the North Atlantic and the Arctic.

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Late-glacial and Holocene paleoceanography and sedimentary environments in the St. Anna Trough, Eurasian Arctic Ocean margin

Cited by 83 publications

References 38 publications

Radiocarbon-datedMytilus edulisandModiolus modiolusfrom northern Svalbard: Climatic implications

Radiocarbon-datedMytilus edulisandModiolus modiolusfrom northern Svalbard: Climatic implications

Difference in optimum temperature for growth and reproduction in benthic foraminifer Rosalina globularis: Implications for paleoclimatic studies

Holocene variations of sea‐surface conditions in the southeastern Barents Sea, reconstructed from dinoflagellate cyst assemblages

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