John Fleng Steffensen

John Fleng Steffensen

Professor


  1. Published

    Winter temperatures decrease swimming performance and limit distributions of tropical damselfishes

    Johansen, J. L., Steffensen, John Fleng & Jones, G. P., 2015, In: Conservation Physiology. 3, 1, 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Whole blood-oxygen binding properties of four cold-temperate marine fishes: blood affinity is independent of pH-dependent binding, routine swimming performance, and environmental hypoxia.

    Herbert, N. A., Skov, P. V., Wells, R. M. G. & Steffensen, John Fleng, 2006, In: Physiological and Biochemical Zoology. 79, 5, p. 909-18 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Ventilatory and respiratory responses in fish: adaptations to environment

    Steffensen, John Fleng, 1992, The Vertebrate Gas Transport Cascade: Adaptations to the environment and Mode of Life. CRC Press, p. 60-71

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

  4. Published

    Ventilation and oxygen consumption in the hagfish, Myxine glutinosa L.

    Steffensen, John Fleng, JOHANSEN, K., SINDBERG, C., Sørensen, J. H. & Møller, J. L., 1984, In: Journal of Experimental Marine Biology and Ecology. 84, 2, p. 173-178

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Vascularization of the lateral line organ in the Atlantic cod: involvement of the secondary vascular system

    Bielecki, J., Skov, P. V., Tranum-Jensen, Jørgen & Steffensen, John Fleng, 2008, In: Journal of Zoology. 276, 2, p. 142-148 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Vascular arrangement and ultrastructure of the European eelpout Zoarces viviparus ovary: implications for maternal-embryonic exchange.

    Skov, P. V., Sørensen, T. F., Ramløv, H. & Steffensen, John Fleng, 2007, In: Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology. 290, 12, p. 1500-7 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Variation in oxygen consumption and temperature preference of Atlantic cod, Gadus morhua, from Denmark and Greenland

    Steffensen, John Fleng, 2008, In: Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology. 150, 3, Supplement, p. S206-S207

    Research output: Contribution to journalConference abstract in journalResearch

  8. Published

    Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata)

    Roche, D. G., Taylor, M. K., Binning, S. A., Johansen, J. L., Domenici, P. & Steffensen, John Fleng, 2014, In: Journal of Experimental Biology. 217, p. 414-422 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Turbulent flow reduces oxygen consumption in the labriform swimming shiner perch, Cymatogaster aggregata

    van der Hoop, J. M., Byron, M. L., Ozolina, K., Miller, D. L., Johansen, J. L., Domenici, P. & Steffensen, John Fleng, 2018, In: Journal of Experimental Biology. 221, 11, p. 1-11 jeb168773.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Torpor in Three Species of Brazilian Hummingbirds under Semi-Natural Condition

    Bech, C., Steffensen, John Fleng, Merger, M., Bicodu, J. E. P. W. & Abe, A. S., 1997, In: The condor. 99, p. 780-788

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Torpor e energética em Beija-flores do Sudeste Brasileiro

    Abe, A. S., Bech, C., Steffensen, John Fleng, Berger, M. & Bicodu, J. E. P. W., 1995, In: Museu de Biologia Mello Leitao. Boletim. 2, p. 3-13

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Too hot to handle? Using movement to alleviate effects of elevated temperatures in a benthic elasmobranch, Hemiscyllium ocellatum

    Gervais, C. R., Nay, T. J., Renshaw, G., Johansen, J. L., Steffensen, John Fleng & Rummer, J. L., 2018, In: Marine Biology. 165, 11, p. 1-12 162.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Tolerance of hypercapnic acidosis by the European eel, Anguilla anguilla

    McKenzie, D., Dalla Valle, A., Steffensen, John Fleng & Taylor, E., 2000, In: Journal of Physiology. Suppl. S, p. 282P-283P

    Research output: Contribution to journalConference abstract in journalResearch

  14. 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

  15. 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

  16. Published

    To scale or not to scale: a perspective on describing fish energy budgeting

    Svendsen, M. B. S., Christensen, E. A. F. & Steffensen, John Fleng, 1 Jan 2017, In: Conservation Physiology. 5, 1, 10 p., cox056.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Thermal optimum for pikeperch (Sander lucioperca) and the use of ventilation frequency as a predictor of metabolic rate

    Frisk, M., Skov, P. V. & Steffensen, John Fleng, 2012, In: Aquaculture. 324-325, p. 151-157 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published
  19. Published

    The temperature challenges on cardiac performance in winter-quiescent and migration-stage eels Anguilla anguilla

    Methling, C., Steffensen, John Fleng & Skov, P. V., 2012, In: Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology. 163, 1, p. 66-73 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    The secondary vascular system

    Steffensen, John Fleng & Lomholt, J. P., 1992, Fish Physiol., XIIA. Academic Press, p. 185-217

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

  21. Published

    The rostral micro-tooth morphology of blue marlin, Makaira nigricans

    Pacher, K., Breuker, M., Hansen, M. J., Kurvers, R. H. J. M., Häge, J., Dhellemmes, F., Domenici, P., Steffensen, John Fleng, Krause, S., Hildebrandt, T., Fritsch, G., Bach, P., Sabarros, P. S., Zaslansky, P., Mahlow, K., Müller, J., Armas, R. G., Ortiz, H. V., Galván-Magaña, F. & Krause, J., 2024, In: Journal of Fish Biology. 104, 3, p. 713-722 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    The role of adrenaline as a modulator of cardiac performance in two Antarctic fishes

    Skov, P. V., Bushnell, P. G., Tirsgaard, B. & Steffensen, John Fleng, 2009, In: Polar Biology. 32, 2, p. 215-223

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    The role of adrenaline as a modulator of cardiac performance in three Notothenioid fishes

    Skov, P. V., Bushnell, P., Tirsgaard, B. & Steffensen, John Fleng, 2008, In: Comparative Biochemistry and Physiology A. 150, 3, Supplement, p. S97-S98 2 p., A5.3.

    Research output: Contribution to journalConference abstract in journalResearch

  24. Published

    The response of striped surfperch Embiotoca lateralis to progressive hypoxia: swimming activity, shoal structure, and estimated metabolic expenditure

    Cook, D. G., Brown, E. J., Lefevre, S., Domenici, P. & Steffensen, John Fleng, 2014, In: Journal of Experimental Marine Biology and Ecology. 460, p. 162-169 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    The response of lesser sandeel (Ammodytes tobianus) to acute hypoxia; swimming activity and physiological stress

    Behrens, J. W. & Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S171

    Research output: Contribution to journalConference articleResearchpeer-review

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