John Fleng Steffensen
Professor
Marine Biology
Strandpromenaden 5
3000 Helsingør
- Published
The hypoxia avoidance behaviour of juvenile Atlantic cod (Gadus morhua L.) depends on the provision and pressure level of an O2 refuge
Herbert, N. A., Skjaeraasen, J. E., Nilsen, T., Salvanes, A. G. V. & Steffensen, John Fleng, 2011, In: Marine Biology. 158, 4, p. 737-746 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The influence of Hypoxia on the Preferred Temperature of Rainbow Trout Oncorhynchus mykiss
Schurmann, H., Steffensen, John Fleng & Lomholt, J. F., 1991, In: Journal of Experimental Biology. 157, p. 75-86Research output: Contribution to journal › Journal article › Research › peer-review
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The influence of dietary fatty acid composition on the respiratory and cardiovascular physiology of Adriatic sturgeon (Acipenser naccarii): a review
McKenzie, D., Piraccini, G., Agnisola, C., Steffensen, John Fleng, Bronzi, P., Bolis, C., Tota, B. & Taylor, E., 1999, In: Journal of Applied Ichthyology. 15, 4-5, p. 265-269Research output: Contribution to journal › Journal article › Research › peer-review
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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. 748-752Research output: Contribution to journal › Journal article › Research › peer-review
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The parasite fauna of Arctogadus glacialis (Peters) (Gadidae) from western and eastern Greenland
Køie, M., Steffensen, John Fleng, Møller, Peter Rask & Christiansen, J. S., 2008, In: Polar Biology. 31, 9, p. 1017-1021 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The relationship between caudal differential pressure and activity of Atlantic cod: a potential method to predict oxygen consumption of free-swimming fish
Steinhausen, M. F., Steffensen, John Fleng & Andersen, N. G., 2007, In: Journal of Fish Biology. 71, p. 957-969Research output: Contribution to journal › Journal article › Research › peer-review
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The relative importance of skin oxygen uptake in the naturally buried plaice, Pleuronectes platessa, exposed to graded hypoxia.
Steffensen, John Fleng, Lomholt, J. P. & Johansen, K., 1981, In: Respiratory Physiology & Neurobiology. 44, 3, p. 269-75 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The response of Atlantic cod, Gadus morhua, to progressive hypoxia: fish swimming speed and physiological stress
Herbert, N. A. & Steffensen, John Fleng, 2005, In: Marine Biology. 147, p. 1403-1412Research output: Contribution to journal › Journal article › Research › peer-review
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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. S171Research output: Contribution to journal › Conference article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Conference abstract in journal › Research
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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. 215-223Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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The secondary vascular system
Steffensen, John Fleng & Lomholt, J. P., 1992, Fish Physiol., XIIA. Academic Press, p. 185-217Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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 journal › Journal article › Research › peer-review
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The whole blood oxygen binding properties of a large but presumably sluggish polar elasmobranch, the Greenland shark Somniosus microcephalus
Steffensen, John Fleng, 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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-283PResearch output: Contribution to journal › Conference abstract in journal › Research
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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 journal › Journal article › Research › peer-review
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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. 3-13Research output: Contribution to journal › Journal article › Research › peer-review
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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. 780-788Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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-S207Research output: Contribution to journal › Conference abstract in journal › Research
- 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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 173-178Research output: Contribution to journal › Journal article › Research › peer-review
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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. 60-71Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Embryonic suckling and maternal specializations in the live-bearing teleost Zoarces viviparus
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1725
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Fast-starting after a breath: air-breathing motions are kinematically similar to escape responses in the catfish Hoplosternum littorale
Research output: Contribution to journal › Journal article › Research › peer-review
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1672
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Pop Up Satellite Tags Impair Swimming Performance and Energetics of the European Eel (Anguilla anguilla)
Research output: Contribution to journal › Journal article › Research › peer-review
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