John Fleng Steffensen

John Fleng Steffensen

Professor


  1. 2002
  2. Published

    Energetics of median and paired fin swimming, body and caudal fin swimming, and gait transition in parrotfish (Scarus schlegeli) and triggerfish (Rhinecanthus aculeatus).

    Korsmeyer, K. E., Steffensen, John Fleng & Herskin, J., 2002, In: Journal of Experimental Biology. 205, Pt 9, p. 1253-63 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Metabolic cold adaptation of polar fish based on measurements of aerobic oxygen consumption: fact or artefact? Artefact!

    Steffensen, John Fleng, 2002, In: Comparative Biochemistry and Physiology A. 132, 4, p. 789-95 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Phylogenetic position of the cryopelagic codfish genus Arctogadus Drjagin, 1932 based on partial mitochondrial cytochrome b sequences

    Møller, Peter Rask, Jordan, Anders Drud, Gravlund, P. & Steffensen, John Fleng, 2002, In: Polar Biology. 25, 5, p. 342-349

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Respirometry across the gait transition in a labriform swimmer (Embiotoca lateralis).

    Schaefer, J., Cannas, M. & Steffensen, John Fleng, 2002, In: Integrative and Comparative Biology. 6, p. 1307

    Research output: Contribution to journalConference abstract in journalResearch

  6. Published

    The effect of progressive hypoxia on school structure and dynamics in Atlantic herring Clupea harengus.

    Domenici, P., Ferrari, R. S., Steffensen, John Fleng & Batty, R. S., 2002, In: Proceedings of the Royal Society of London. Biological Sciences. 269, 1505, p. 2103-11 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Tolerance of acute hypercapnic acidosis by the European eel ( Anguilla anguilla).

    McKenzie, D. J., Taylor, E. W., Dalla Valle, A. Z. & Steffensen, John Fleng, 2002, In: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology. 172, 4, p. 339-46 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 2003
  9. Published

    Cod could face a breathless future: Inside JEB

    Petersen, M. F. & Steffensen, John Fleng, 2003, In: Journal of Experimental Biology. 206, p. 211

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Does fish from the Disko Bay area of Greenland possess antifreeze proteins during the summer?

    Enevoldsen, L. T., Heiner, I., Devries, A. L. & Steffensen, John Fleng, 2003, In: Polar Biology. 26, p. 365-370

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Effects of growth hormone transgenesis on metabolic rate, exercise performance and hypoxia tolerance in tilapia hybrids

    McKenzie, D., Martinez, R., Morales, A., Acosta, J., Morales, R., Taylor, E., Steffensen, John Fleng & Estrada, M., 2003, In: Journal of Fish Biology. 63, 2, p. 398-409

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Fiskenes sekundære cirkulationssystem

    Skov, P. V. & Steffensen, John Fleng, 2003, In: Naturens Verden. 10, p. 14-19

    Research output: Contribution to journalJournal articleCommunication

  13. Published

    Intra-school positional preference and reduced tail beat frequency in trailing positions in schooling roach under experimental conditions

    Svendsen, J. C., Skov, J., Bildsøe, M. & Steffensen, John Fleng, 2003, In: Journal of Fish Biology. 62, 4, p. 834-846 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Preferred temperature of juvenile Atlantic cod Gadus morhua with different haemoglobin genotypes at normoxia and moderate hypoxia.

    Petersen, M. F. & Steffensen, John Fleng, 2003, In: Journal of Experimental Biology. 206, Pt 2, p. 359-64 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    The blood volumes of the primary and secondary circulatory system in the Atlantic cod, Gadus morhua L., using plasma bound Evans Blue and compartmental analysis.

    Skov, P. V. & Steffensen, John Fleng, 2003, In: Journal of Experimental Biology. 206, p. 591-599 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Tolerance of chronic hypercapnia by the European eel Anguilla anguilla.

    McKenzie, D. J., Piccolella, M., Dalla Valle, A. Z., Taylor, E. W., Bolis, C. L. & Steffensen, John Fleng, 2003, In: Journal of Experimental Biology. 206, Pt 10, p. 1717-26 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. 2004
  18. Published

    Escape performance in three teleosts from West Greenland

    Jordan, Anders Drud, Steffensen, John Fleng & Herbert, N. A., 2004, In: Polar Biology. 28, p. 164-167

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    The interrelated effects of body size and choroids rete development on ocular O2 partial pressure of Atlantic cod (Gadus morhua) and Greenland cod (Gadus ogac).

    Herbert, N. A., Steffensen, John Fleng & Jordan, Anders Drud, 2004, In: Polar Biology. 27, p. 748-752

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. 2005
  21. Published

    Comparison of metabolic rate during forced and spontaneous activity of seabream (Sparus aurata)

    Steinhausen, M. F. & Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S213

    Research output: Contribution to journalConference abstract in journalResearch

  22. Published

    Does temperature preference relate to the anaerobic capacity of Atlantic cod (Gadus morhua L.) with different haemoglobin phenotype?

    Jordan, Anders Drud, Steinhausen, M. F., Herbert, N. A., Grisdale-Helland, B., Helland, S. J. & Steffensen, John Fleng, 2005, In: Marine Biology Research. 1, 6, p. 411-416

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Effects of Environmental Hypoxia. In: Modeling Nutrient Loads and Response in River and Estuary Systems

    Steffensen, John Fleng & Randall, D., 2005, NATO/CCMS Pilot Study. 271 ed. p. 32-37

    Research output: Chapter in Book/Report/Conference proceedingReport chapterResearch

  24. Published

    Oxygen conditions in fish schools

    Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S167

    Research output: Contribution to journalConference abstract in journalResearch

  25. Published

    Physiology and behaviour of Atlantic cod (Gadus morhua) with different haemoglobin genotypes: the effect of hypoxia

    Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S99

    Research output: Contribution to journalConference abstract in journalResearch

  26. Published

    Respiratory Systems and Metabolic Rates.

    Steffensen, John Fleng, 2005, The Physiology of Polar Fishes. Farrell, A. & Steffesen, J. (eds.). 22 ed. Academic Press, p. 203-238 (Fish Physiology).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  27. Published

    Specific dynamic action in Gadus morhua under normoxia and moderate strong hypoxia

    Jordan, A. D. & Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S213

    Research output: Contribution to journalConference abstract in journalResearch

  28. Published

    Tail beat frequency as a predictor of swimming speed and oxygen consumption of saithe (Pollachius virens) and whiting (Merlangius merlangus) during forced swimming.

    Steinhausen, M. F., Steffensen, John Fleng & Andersen, N. G., 2005, In: Marine Biology. 148, p. 197-204

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    The Arctic and Antarctic Polar Marine Environments

    DeVries, A. L. & Steffensen, John Fleng, 2005, Physiology of Polar Fishes. Farrell, A. P. & Steffensen, J. F. (eds.). p. 1-24 24 p. (Fish Physiology, Vol. 22).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

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