Assoc. Prof. Dr. Alexey A. Sukhotin 

White Sea Biological Station, RUSSIA
Jan 2018 - Feb 2018
Fellow
Jan 2014 - Feb 2014
Fellow
Jan 2013 - Feb 2013
Fellow
Jan 2012 - Feb 2012
Fellow
Sep 2011 - Okt 2011
Fellow
Jan 2011 - Jan 2011
Fellow
Nov 2002 - Aug 2003
Fellow

Alexey A. Sukhotin

Projekte & Publikationen

Abstract
Contribution of Cell Size and Number of Mitochondria to Metabolic Allometry in Ectotherms

The metabolic rate is a fundamental biological characteristic that determines the physiological and vital parameters of organisms and hence their adaptability and ecological role. Metabolic rate is highly dependent on body size of living organisms, and this phenomenon is called metabolic allometry (MA). Mass-specific metabolic rate decreases with increasing body size, so that larger organisms have a lower energy turnover rate per unit mass than smaller organisms. This pattern holds true both when comparing animals of different taxa, and within the same species, and even within a single individual in ontogeny. Search for the causes and mechanisms of MA has a long history and is still one of the important open questions in biology.
Obviously, the whole-animal metabolic rate is associated with the metabolism of tissues and organs, which, in turn, is determined by cellular energetics and the functioning of subcellular organelles – mitochondria. We assume that the allometry of cellular metabolism and of mitochondrial activity can help to explain the phenomenon of MA at the organism level. The goal of our project is to reveal the relationship between ultrastructural changes in tissues – quantitative and morphological characteristics of mitochondria – and body mass. We explore the contribution of the cell size, as well as abundance, volume, morphology and functional properties of mitochondria to the MA in marine invertebrates.
Kooperationspartner
Prof. Dr. Hans-Otto Pörtner, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Bremerhaven
Kooperationspartner
Prof. Dr. Hans-Otto Pörtner, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Bremerhaven
Publikationen
Basova L., Begum S., Strahl J., Sukhotin A., Brey T., Philipp E., and Abele D. (2012). Age-dependent patterns of antioxidants in Arctica islandica from six regionally separate populations with different life spans. Aquatic Biology, 14, 141-152. https://doi.org/10.3354/ab00387
Usov N., Khaitov V., Smirnov V., Sukhotin A. (2019). Spatial and temporal variation of hydrological characteristics and zooplankton community composition influenced by freshwater runoff in the shallow Pechora Sea. Polar Biology, 42, 1647–1665. https://doi.org/10.1007/s00300-018-2407-1
Martynova D. M., Kazus N. A., Bathmann U. V., Graeve M., and Sukhotin A. A. (2011). Seasonal abundance and feeding patterns of copepods Temora longicornis, Centropages hamatus and Acartia spp. in the White Sea (66ºN). Polar Biology, 34, 1175-1195. https://doi.org/10.1007/s00300-011-0980-7
Sukhotin, A. A. (Editor) (2013). Long-term Research on Marine Ecosystems in the White Sea, Russia. Hydrobiologia, 706 (1).
Sukhotin A. A. and V. Berger (2013). Long-term Monitoring Studies as a Powerful Tool in Marine Ecosystem Research. Hydrobiologia, 706 (1), 1-9. https://doi.org/10.1007/s10750-013-1456-2
Zittier Z.M.C., Bock C., Sukhotin A.A., Häfker N.S., Pörtner H.O. (2018). Impact of ocean acidification on thermal tolerance and acid–base regulation of Mytilus edulis from the White Sea. Polar Biology, 41, 2261–2273. https://doi.org/10.1007/s00300-018-2362-x
Krasnov, Yu. V., Shklyarevich, G. A., and Sukhotin, A. A. (2014). Feeding habits of common eiders Somateria mollissima on the west coast of Vaygach Island. Doklady Biological Sciences, 459 (1), 341-343. https://doi.org/10.1134/S0012496614060015
Wilson J. G., Galaktionov K. V., Sukhotin A. A., Skirnisson K., Nikolaev K. E., Ivanov M. I., Bustnes J. O., Saville D. H., and Regel K. V. (2011). Factors influencing trematode parasite burdens in mussels (Mytilus spp.) from the North Atlantic Ocean across to the North Pacific. Estuarine, Coastal and Shelf Science, 132, 87-93. https://doi.org/10.1016/j.ecss.2011.10.005
Wilson, J.G., K.V. Galaktionov, A. A. Sukhotin, K. Skirnisson, K.E. Nikolaev, M.I. Ivanov, J.O. Bustnes, D.H. Saville, and K.V. Regel (2013). Factors Influencing Trematode Parasite Burdens in Mussels (Mytilus spp) from the North Atlantic Ocean across to the North Pacific. Estuarine, Coastal and Shelf Science, 132, 87-93. https://doi.org/10.1016/j.ecss.2011.10.005
Galaktionov, K. V., Bustnes, J. O., Bardsen, B. J., Wilson, J. G., Nikolaev, K. E., Sukhotin, A. A., Skirnisson, K., Saville, D. H., Ivanov, M. V., and Regel, K. V. (2015). Factors influencing the distribution of trematode larvae in blue mussels Mytilus edulis in the North Atlantic and Arctic Oceans. Marine Biology, 162, 193-206. https://doi.org/10.1007/s00227-014-2586-4
Sukhotin A (Editor) (2019). Ecosystems of the Pechora Sea. A Special Issue of Polar Biology. Polar Biology, 42 (9). #https://link.springer.com/journal/300/volumes-and-issues/42-9#
Kovalev, A.; Sokolova, I.; Sukhotin, A. (2018). Allometry of mitochondrial respiration in mussels. VLIZ Special Publication, Vlaams Instituut voor de Zee (VLIZ): Oostende, 82, 139.
Philipp E. E. R., Strahl J., and Sukhotin A. A. (2011). Aging in Marine Animals. In: Abele D., Vázquez-Medina J. P., and Zenteno-Savin T. (eds.): Oxidative Stress in Aquatic Ecosystems, John Wiley & Sons Ltd, Chichester, UK, 193-207. https://doi.org/10.1002/9781444345988.ch14
Sokolova I. M., Sukhotin A. A., and Lannig, G. (2011). Stress Effects on Metabolism and Energy Budgets in Mollusks. In: Abele D., Vázquez-Medina J. P., and Zenteno-Savin T. (eds.): Oxidative Stress in Aquatic Ecosystems, John Wiley & Sons Ltd, Chichester, UK, 548, 263-280. https://doi.org/10.1002/9781444345988.ch19
Kooperationspartner
Prof. Dr. Hans-Otto Pörtner, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Bremerhaven
Publikationen
Sukhotin A., Abele, A. and Pörtner, D. (2006). Ageing and Metabolism of Mytilus Edulis: Populations from Various Climate Regimes. Journal of Shellfish Research, 25 (3), 893-899. https://doi.org/10.2983/0730-8000(2006)25[893:AAMOME]2.0.CO;2