John Fleng Steffensen
Professor
Marine Biology
Strandpromenaden 5
3000 Helsingør
- 2002
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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. 342-349Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1307Research output: Contribution to journal › Conference abstract in journal › Research
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 2003
- Published
Cod could face a breathless future: Inside JEB
Petersen, M. F. & Steffensen, John Fleng, 2003, In: Journal of Experimental Biology. 206, p. 211Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 365-370Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 398-409Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Fiskenes sekundære cirkulationssystem
Skov, P. V. & Steffensen, John Fleng, 2003, In: Naturens Verden. 10, p. 14-19Research output: Contribution to journal › Journal article › Communication
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 2004
- Published
Escape performance in three teleosts from West Greenland
Jordan, Anders Drud, Steffensen, John Fleng & Herbert, N. A., 2004, In: Polar Biology. 28, p. 164-167Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 748-752Research output: Contribution to journal › Journal article › Research › peer-review
- 2005
- 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. S213Research output: Contribution to journal › Conference abstract in journal › Research
- 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. 411-416Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 32-37Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research
- Published
Oxygen conditions in fish schools
Steffensen, John Fleng, 2005, In: Comparative Biochemistry and Physiology A. 3, p. S167Research output: Contribution to journal › Conference abstract in journal › Research
- 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. S99Research output: Contribution to journal › Conference abstract in journal › Research
- 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 proceeding › Book chapter › Research
- 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. S213Research output: Contribution to journal › Conference abstract in journal › Research
- 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. 197-204Research output: Contribution to journal › Journal article › Research › peer-review
- 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 proceeding › Book chapter › Research › peer-review
- Published
The Physiology of Polar Fishes
Farrell, A. P. (ed.) & Steffensen, John Fleng (ed.), 2005, Academic Press. (Fish Physiology).Research output: Book/Report › Book › Research › peer-review
- Published
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
- 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. S171Research output: Contribution to journal › Conference article › Research › peer-review
- 2006
- Published
A Novel Acoustic Dissolved Oxygen Transmitter for Fish Telemetry
Svendsen, J. C., Aarestrup, K., Steffensen, John Fleng & Herskin, J., 2006, In: Marine Technology Society Journal. 40, 1, p. 103-108Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Fiskene i de danske farvande
Steffensen, John Fleng, 2006, HAVET: Naturen i Danmark. Fenchel, T. (ed.). Gyldendal, p. 255-310Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
- Published
Gait transition and oxygen consumption in swimming striped surfperch Embiotoca lateralis Agassiz
Cannas, M., Schaefer, J., Domenici, P. & Steffensen, John Fleng, 2006, In: Journal of Fish Biology. 69, 6, p. 1612-1625Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Growth of Atlantic cod (Gadus morhua L.) with different haemoglobin subtypes when kept near their temperature preferenda
Jordan, A. D., Lampe, J. F., Grisdale-Helland, B., Helland, S. J., Shearer, K. D. & Steffensen, John Fleng, 2006, In: Aquaculture. 257, p. 44-52Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Hypoxia increases the behavioural activity of schooling herring: a response to physiological stress or respiratory distress?
Herbert, N. A. & Steffensen, John Fleng, 2006, In: Marine Biology. 149, 5, p. 1217-1225Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Metabolic aspects of torpor in hummingbirds
Bech, C. & Steffensen, John Fleng, 2006, In: Tung wu hsüeh pao. 52(Suppl.), p. 397-400Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Polarfisks fysiologiske tilpasninger
Jordan, Anders Drud & Steffensen, John Fleng, 2006, Arktisk Station 1906 - 2006.: Et centrum for forskning. 1. ed. Danmark: Forlaget Rhodos, p. 286-291.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
- Published
Swimming energetics of the Barents Sea capelin (Mallotur villosus) during the spawning migration period
Behrens, J. W., Præbel, K. & Steffensen, John Fleng, 2006, In: Journal of Experimental Marine Biology and Ecology. 2, 331, p. 208-216Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The behavioural and physiological response of Atlantic cod Gadus morhua L. to short-term acute hypoxia
Johansen, J. L., Herbert, N. A. & Steffensen, John Fleng, 2006, In: Journal of Fish Biology. 68, 6, p. 1918-1924 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The effect of external dummy transmitters on oxygen consumption and performance of swimming Atlantic cod
Steinhausen, M. F., Andersen, N. G. & Steffensen, John Fleng, 2006, In: Journal of Fish Biology. 69, p. 951-956Research output: Contribution to journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 2007
- Published
Effects of ration size and hypoxia on specific dynamic action in the cod
Jordan, Anders Drud & Steffensen, John Fleng, 2007, In: Physiological and Biochemical Zoology.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Erratum: Gait transition and oxygen consumption in swimming striped perch Embiotoca lateralis Agassiz (Journal of Fish Biology (2006) 69 (1612-1625))
Cannas, M., Schaefer, J., Domenici, P. & Steffensen, John Fleng, 2007, In: Journal of Fish Biology.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Oxygen consumption of fish exposed to hypoxia: Are they all oxyregulators or are any oxyconformers?
Steffensen, John Fleng, 2007, Fish Physiology, Toxicology, and Water Quality: Proceedings of the Ninth International Symposium, Capri, Italy, April 24-28, 2006. Brauner, C. J., Suvajdzic, K., Nilsson, G. & Randall, D. (eds.). Ecosystems Research Divison Athens, Georgia, p. 239-244Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
Oxygen dynamics around buried lesser sandeels Ammodytes tobianus (Linnaeus 1785): mode of ventilation and oxygen requirements.
Behrens, J. W., Stahl, H. J., Steffensen, John Fleng & Glud, R. N., 2007, In: Journal of Experimental Biology. 210, Pt 6, p. 1006-14 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Swimming alters responses to hypoxia in the Adriatic sturgeon Acipenser naccarii
McKenzie, D. J., Steffensen, John Fleng, Korsmeyer, K., Whiteley, N. M., Bronzi, P. & Taylor, E. W., 2007, In: Journal of Fish Biology. 70, p. 651-658Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Effect of Ration Size and Hypoxia on Specific Dynamic Action in the Cod
Jordan, Anders Drud & Steffensen, John Fleng, 2007, In: Physiological and Biochemical Zoology. 80, 2, p. 178-185Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The effect of hypoxia on behavioural and physiological aspects of lesser sandeel, Ammodytes tobianus (Linnaeus, 1785)
Behrens, J. W. & Steffensen, John Fleng, 2007, In: Marine Biology. 150, p. 1365-1377Research output: Contribution to journal › Journal article › Research › peer-review
- Published
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
- 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
- 2008
- Published
Does autonomic regulation of heart rate optimise oxygen uptake in teleost fishes?
McKenzie, D., Taylor, E., Wang, T., Skov, P. V., Steffensen, John Fleng, Campbell, H., Leite, C. & Abe, A., 2008, In: Comparative Biochemistry and Physiology - Part A: Comparative Physiology. 150, 3, Supplement, p. S117 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
- Published
Effect of ammonia on weatherloach (Misgurnus anguillicaudatus) metabolism under aquatic and aerial conditions
Silva, J. M., Coimbra, J., Steffensen, John Fleng & Wilson, J., 2008, In: Comparative Biochemistry and Physiology A. 150, 3, Supplement 1, p. S120 1 p., A6.21.Research output: Contribution to journal › Conference abstract in journal › Research
ID: 2881
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Embryonic suckling and maternal specializations in the live-bearing teleost Zoarces viviparus
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1721
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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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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
Published