Search Results - "Sazhin, Andrey F."

Metabolomics-derived marker metabolites to characterize Phaeocystis pouchetii physiology in natural plankton communities by Kuhlisch, Constanze, Althammer, Julia, Sazhin, Andrey F., Jakobsen, Hans H., Nejstgaard, Jens C., Pohnert, Georg

“…Phaeocystis pouchetii (Hariot) Lagerheim, 1893 regularly dominates phytoplankton blooms in higher latitudes spanning from the English Channel to the Arctic…”
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A light-induced shortcut in the planktonic microbial loop by Ptacnik, Robert, Gomes, Ana, Royer, Sarah-Jeanne, Berger, Stella A., Calbet, Albert, Nejstgaard, Jens C., Gasol, Josep M., Isari, Stamatina, Moorthi, Stefanie D., Ptacnikova, Radka, Striebel, Maren, Sazhin, Andrey F., Tsagaraki, Tatiana M., Zervoudaki, Soultana, Altoja, Kristi, Dimitriou, Panagiotis D., Laas, Peeter, Gazihan, Ayse, Martínez, Rodrigo A., Schabhüttl, Stefanie, Santi, Ioulia, Sousoni, Despoina, Pitta, Paraskevi

“…Mixotrophs combine photosynthesis with phagotrophy to cover their demands in energy and essential nutrients. This gives them a competitive advantage under…”
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Future climate scenarios for a coastal productive planktonic food web resulting in microplankton phenology changes and decreased trophic transfer efficiency by Calbet, Albert, Sazhin, Andrey F, Nejstgaard, Jens C, Berger, Stella A, Tait, Zachary S, Olmos, Lorena, Sousoni, Despoina, Isari, Stamatina, Martínez, Rodrigo A, Bouquet, Jean-Marie, Thompson, Eric M, Båmstedt, Ulf, Jakobsen, Hans H

“…We studied the effects of future climate change scenarios on plankton communities of a Norwegian fjord using a mesocosm approach. After the spring bloom,…”
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Structure and Productivity of the Phytoplankton Community in the Southwestern Kara Sea in Early Summer by Mosharov, Sergey A., Druzhkova, Elena I., Sazhin, Andrey F., Khlebopashev, Pavel V., Drozdova, Anastasia N., Belyaev, Nikolay A., Azovsky, Andrey I.

“…Knowledge of the features of the structure and productivity of the Arctic communities of marine planktonic algae is necessary to identify possible changes in…”
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Abundance, Biomass, and Production of Bacterioplankton at the End of the Growing Season in the Western Laptev Sea: Impact of Khatanga River Discharge (Arctic) by Kopylov, Alexander I., Kosolapov, Dmitriy B., Romanenko, Anna V., Zabotkina, Elena A., Sazhin, Andrey F.

“…The structure and productivity of planktonic microbial communities in the ecosystems of the Siberian Arctic seas are significantly dependent on freshwater…”
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Effects of light availability on mixotrophy and microzooplankton grazing in an oligotrophic plankton food web: Evidences from a mesocosm study in Eastern Mediterranean waters by Calbet, Albert, Martínez, Rodrigo A., Isari, Stamatina, Zervoudaki, Soultana, Nejstgaard, Jens C., Pitta, Paraskevi, Sazhin, Andrey F., Sousoni, Despoina, Gomes, Ana, Berger, Stella A., Tsagaraki, Tatiana M., Ptacnik, Robert

“…Plankton biomass and composition in the pelagic zone of oceans is exposed to changes in availability of light and nutrients due to large-scale ocean…”
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Effects of ocean acidification, temperature and nutrient regimes on the appendicularian Oikopleura dioica: a mesocosm study by Troedsson, Christofer, Bouquet, Jean-Marie, Lobon, Carla M., Novac, Aliona, Nejstgaard, Jens C., Dupont, Sam, Bosak, Suncica, Jakobsen, Hans H., Romanova, Nadezda, Pankoke, Lene M., Isla, Alejandro, Dutz, Jörg, Sazhin, Andrey F., Thompson, Eric M.

“…Increasing pCO 2 is hypothesized to induce shifts in plankton communities toward smaller cells, reduced carbon export rates and increased roles of gelatinous…”
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Dataset of phytoplankton productive parameters and environmental forces in autumn in the Kara Sea by Mosharov, Sergey A., Sergeeva, Valentina M., Kremenetskiy, Vyacheslav V., Sazhin, Andrey F., Stepanova, Svetlana V.

“…This data article contains data on the photosynthetic activity, shares of the main algae groups in the total phytoplankton biomass and the main environmental…”
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Structure of virioplankton and viral lysis of prokaryotes on the shelf of Siberian Arctic seas: impact of large river runoff by Kopylov, Alexander I., Zabotkina, Elena A., Sazhin, Andrey F., Kosolapov, Dmitriy B., Romanenko, Anna V., Romanova, Nadezhda D.

“…A small amount of information about the composition and functioning of prokaryotes and viruses in the Kara, Laptev and East Siberian seas makes it impossible…”
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Quantitative PCR to estimate copepod feeding by Nejstgaard, Jens C., Frischer, Marc E., Simonelli, Paolo, Troedsson, Christofer, Brakel, Markus, Adiyaman, Filiz, Sazhin, Andrey F., Artigas, L. Felipe

“…Copepods play a central role in marine food webs as grazers of plankton and as key prey for many predators. Therefore, quantifying their specific trophic…”
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A simple adjustment to test reliability of bacterivory rates derived from the dilution method by Pree, Bernadette, Kuhlisch, Constanze, Pohnert, Georg, Sazhin, Andrey F., Jakobsen, Hans Henrik, Lund Paulsen, Maria, Frischer, Marc E., Stoecker, Diane, Nejstgaard, Jens C., Larsen, Aud

“…Quantification of grazing losses of marine heterotrophic bacteria is critical for understanding nutrient and carbon pathways in aquatic systems. The dilution…”
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The plankton community in Norwegian coastal waters—abundance, composition, spatial distribution and diel variation by Bratbak, Gunnar, Jacquet, Stéphan, Larsen, Aud, Pettersson, Lasse H., Sazhin, Andrey F., Thyrhaug, Runar

“…The purpose of the present study was to explore the composition and variation of the pico-, nano- and micro-plankton communities in Norwegian coastal waters…”
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colonization of two Phaeocystis species (Prymnesiophyceae) by pennate diatoms and other protists: a significant contribution to colony biomass by Sazhin, Andrey F, Artigas, L. Felipe, Nejstgaard, Jens C, Frischer, Marc E

“…The association of Phaeocystis spp. with small pennate diatoms during three Phaeocystis-dominated spring blooms were investigated in the Eastern English…”
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Haemolytic Activity of Live Phaeocystis pouchetii during Mesocosm Blooms by van Rijssel, Marion, Alderkamp, Anne-Carlijn, Nejstgaard, Jens C., Sazhin, Andrey F., Verity, Peter G.

“…Chemical defence is a potential mechanism contributing to the success of Phaeocystis species that repeatedly dominate the phytoplankton in coastal areas…”
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Dynamics in carbohydrate composition of Phaeocystis pouchetii colonies during spring blooms in mesocosms by Alderkamp, Anne-Carlijn, Nejstgaard, Jens C., Verity, Peter G., Zirbel, Marnie J., Sazhin, Andrey F., van Rijssel, Marion

“…The colony-forming microalgae Phaeocystis produces two major pools of carbohydrates: mucopolysaccharides in the colony matrix and intracellular storage glucan…”
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Assessment of phytoplankton photosynthetic efficiency based on measurement of fluorescence parameters and radiocarbon uptake in the Kara Sea by Mosharov, Sergey A., Sergeeva, Valentina M., Kremenetskiy, Vyacheslav V., Sazhin, Andrey F., Stepanova, Svetlana V.

“…Spatial distribution of relative electron transport rate (rETR) values, the maximum quantum efficiency of PSII (Fv/Fm), and biomass-specific primary production…”
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Viruses and viral infection of heterotrophic prokaryotes in shelf waters of the western part of the East Siberian Sea by Kopylov, Alexander I., Zabotkina, Elena A., Kosolapov, Dmitriy B., Romanenko, Anna V., Sazhin, Andrey F.

“…In September 2017, studies were conducted in the East Siberian Sea along the transect from a Indigirka delta to the ice edge at the outer shelf margin. The…”
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Viruses in the water column and the sediment of the eastern part of the Laptev Sea by Kopylov, Alexander I., Zabotkina, Elena A., Romanenko, Anna V., Kosolapov, Dmitriy B., Sazhin, Andrey F.

“…The distribution of viruses and their impact on prokaryotes were studied using the epifluorescence and transmission electron microscopy along a transect,…”
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Virioplankton of the Kara Sea and the Yenisei River estuary in early spring by Kopylov, Alexander I., Sazhin, Andrey F., Zabotkina, Elena A., Romanenko, Anna V., Romanova, Nadezda D., Boltenkova, Мarina A.

“…Here we present our research results on the virioplankton of the shelf zone of the Kara Sea. This is the first study of viruses and bacteria done in the Kara…”
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Increased appendicularian zooplankton alter carbon cycling under warmer more acidified ocean conditions by Winder, Monika, Bouquet, Jean-Marie, Bermúdez, J. Rafael, Berger, Stella A., Hansen, Thomas, Brandes, Jay, Sazhin, Andrey F., Nejstgaard, Jens C., Båmstedt, Ulf, Jakobsen, Hans H., Dutz, Jörg, Frischer, Marc E., Troedsson, Christofer, Thompson, Eric M.

“…Anthropogenic atmospheric loading of CO₂ raises concerns about combined effects of increasing ocean temperature and acidification, on biological processes. In…”
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