Jonathan Stecyk

Assistant Professor

University of Alaska Anchorage
3211 Providence
201L Integrated Science Building
Anchorage, Alaska 99508
● Cardiovascular function
● Cardiorespiratory Physiology
   (IDeA Network of Biomedical Research Excellence)
University of Alaska Anchorage
   Department of Biological Sciences
● B.S. Biology
   Augustana University College, Camrose, Alberta, Canada
● M.S. Cardiorespiratory Physiology
   Simon Fraser University, Burnaby, British Columbia, Canada
Ph.D. Cardiovascular physiology
   Simon Fraser University, Burnaby, British Columbia, Canada
Current Research Projects
Crucian carp (Carassius carassius) neurophysiology during oxygen deprivation
Research Overview
I am a comparative physiologist and my research aims to understand how the heart and brain of anoxia-tolerant vertebrates continue to function when deprived of oxygen. Most vertebrates die within minutes of oxygen deprivation because the heart and brain requires a continuous supply of oxygen. For example, heart attacks and strokes are one of the most common causes of death in the Western world.  However, some fish and turtle species can survive and recover successfully from weeks to months without oxygen.  My research employs a wide range of techniques and spans from the level of the whole animal to the gene to better understand how these animals can live without oxygen, whereas others cannot.
Peer Reviewed Publications
1.     Stecyk, J. A. W. and Farrell, A. P. (2002). Cardiorespiratory responses of the common carp ( Cyprinus carpio) to severe hypoxia at three acclimation temperatures. J. Exp. Biol. 205, 759-768.
2.    Overgaard, J., Stecyk, J. A. W., Farrell, A. P. and Wang, T. (2002). Adrenergic control of the cardiovascular system in the turtle Trachemys scripta. J. Exp. Biol. 205, 3335-3345. [PMID: 12324543]
3.     Stecyk, J. A. W., Overgaard, J., Wang, T. and Farrell, A. P. (2004). α-Adrenergic regulation of systemic peripheral resistance and blood flow distribution in the turtle ( Trachemys scripta) during anoxic submergence at 5 ° C and 21 ° C. J. Exp. Biol. 207, 269-283. [PMID: 14718508]
4.     Overgaard, J., Stecyk, J. A. W., Gesser, H., Wang, T., Gamperl, K. and Farrell, A. P. (2004). Effects of temperature and anoxia upon the performance of in situ perfused trout hearts. J. Exp. Biol. 207, 655-665. [PMID: 14718508]
5.     Overgaard, J., Stecyk, J. A. W., Gesser, H., Wang, T., Gamperl, K. and Farrell, A. P. (2004). Preconditioning stimuli does not benefit the heart of anoxia-tolerant rainbow trout (Oncorhynchus mykiss). J. Comp. Physiol. B. 174, 329-340. [PMID: 14718508]
6.    Stecyk, J. A. W., Stensløkken, K.-O., Farrell, A. P. and Nilsson, G. E. (2004). Maintained cardiac pumping in anoxic crucian carp. Science 305, 77. [PMID: 15459381]
7.     Stecyk, J. A. W. and Farrell, A. P. (2006). Regulation of the cardiorespiratory system of common carp ( Cyprinus carpio) during severe hypoxia at three seasonal acclimation temperatures. Physiol. Biochem. Zool. 79, 614-627. [PMID: 16691527]
8.    Stecyk, J. A. W. and Farrell, A. P. (2007). Effects of extracellular factors on spontaneous heart rate of normoxia- and anoxia-acclimated turtles (Trachemys scripta). J. Exp. Biol. 210, 421-431.
9.     Farrell, A. P. and Stecyk, J. A. W. (2007). The heart as a working model to explore themes and strategies for anoxic survival in ectothermic vertebrates. Comp. Biochem. Physiol. A. 147, 300-312. [PMID: 17337222]
10.     Stecyk, J. A. W., Stensløkken, K.-O., Nilsson, G. E. and Farrell, A. P. (2007). Adenosine does not save the heart of anoxia-tolerant vertebrates during oxygen deprivation. Comp. Biochem. Physiol. A. 147, 961-973. [PMID: 17433747]
11.   Stecyk, J. A. W., Paajanen, V., Farrell, A. P. and Vornanen, M. (2007). Effect of temperature and prolonged anoxia exposure on electrophysiological properties of the turtle (Trachemys scripta) heart. Am. J. Physiol. 293, R421-437. [PMID: 17442785]
12.     Stensløkken, K.-O., Milton, S. L., Lutz, P. L., Sundin, L., Renshaw, G. M. C., Stecyk, J. A. W. and Nilsson, G. E. (2008). Effect of anoxia on the electroretinogram of three anoxia-tolerant vertebrates. Comp. Biochem. Physiol. A. 150, 393-403. [PMID: 18579424]
13 .     Stecyk, J. A. W., Galli, G. L., Shiels, H. A. and Farrell, A. P. (2008). Cardiac survival in anoxia-tolerant vertebrates: An electrophysiological perspective. Comp. Biochem. Physiol. C. 148, 339-354. [18589002]
14.    Stensløkken, K.-O., Ellefsen, S., Stecyk, J. A. W., Dahl, M. B, Nilsson and G. E, Vaage, J. (2008). Differential regulation of AMP-activated kinase and AKT kinase in response to oxygen availability in crucian carp (Carassius carassius). Am. J. Physiol. 295, R1803-1814. [PMID: 18922957]
15.    Stecyk, J. A. W., Bock, C., Overgaard, J., Wang, T., Farrell, A. P. and Pörtner, H.-O. (2009). Correlation of cardiac performance with cellular energetic components in the oxygen-deprived turtle heart. Am. J. Physiol. 297, R756-768. [PMID: 19587113]
16.   Stecyk, J. A. W., Skovgaard, N., Nilsson, G. E. and Wang, T. (2010). Vasoactivity of hydrogen sulfide in normoxic and anoxic turtles (Trachemys scripta). Am. J. Physiol. 298, R1225-1239. [PMID: 20164201]
17.  Utne-Palm, A. C., Salvanes , A.G. V., Currie, B., Kaartvedt, S., Nilsson, G. E., Braithwaite, V., Stecyk, J. A. W., Hundt, M., Flynn, B., Peard, K. R. Lunde, I., Sandvik, G. K., Klevjer, T. A. Strandbø, R. A. U. and Gibbons, M. (2010) Trophic structure and community stability in an overfished ecosystem. Science 329, 333-336. [PMID: 20647468]
18.  Stecyk, J. A. W., Larsen, B. C. and Nilsson, G. E. (2011). Intrinsic performance of the crucian carp (Carassius carassius) heart during anoxic and acidotic stress.  Am J Physiol. 301, R1332-1442.   [PMID:  21795637]
19.  Stecyk, J. A. W., Couturier, C. S., Fagernes, C. E., Ellefsen, S. and Nilsson, G. E. (2012). Quantification of heat shock protein mRNA expression in warm and cold anoxic turtles (Trachemys scripta) using an external RNA control for normalization. Comp. Biochem. Physiol. D. 7, 59-72.  [PMID: 22129782]
20. Nilsson, G.E., Dymowska, A., Stecyk, J.A.W. (2012). New insights into the plasticity of gill structure. Respiratory Physiology & Neurobiology. 184, 214-222 [PMID: 22846495]
21.  Lardon, I., Nilsson, G. E., Stecyk, J. A. W., Vu, T. N., Laukens, K., Dommisse, R. and De Boeck, G. (2013). ¹H-NMR study of the metabolome of an exceptionally anoxia tolerant vertebrate, the crucian carp (Carassius carassius). Metabolomics. DOI 10.1007/s11306-012-0448-y 
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