John Fleng Steffensen

John Fleng Steffensen

Professor

ORCID: 0000-0002-4477-8039

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  1. Published

    Greenland Shark (Somniosus microcephalus) Stomach Contents and Stable Isotope Values Reveal an Ontogenetic Dietary Shift

    Nielsen, J., Christiansen, J. S., Grønkjær, P., Bushnell, P., Steffensen, John Fleng, Kiilerich, H. O., Præbel, K. & Hedeholm, R., 2019, In: Frontiers in Marine Science. 6, p. 1-11 125.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Assessing the reproductive biology of the Greenland shark (Somniosus microcephalus)

    Nielsen, J., Hedeholm, R. B., Lynghammar, A., McClusky, L. M., Berland, B., Steffensen, John Fleng & Christiansen, J. S., 2020, In: PLoS ONE. 15, 10, 22 p., e0238986.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Eye lens radiocarbon reveals centuries of longevity in the Greenland shark (Somniosus microcephalus)

    Nielsen, J., Hedeholm, R. B., Heinemeier, J., Bushnell, P. G., Christiansen, J. S., Olsen, J., Ramsey, C. B., Brill, R. W., Simon, M., Steffensen, K. F. & Steffensen, John Fleng, 12 Aug 2016, In: Science (New York, N.Y.). 353, 6300, p. 702-4 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Distribution and feeding ecology of the Greenland shark (Somniosus microcephalus) in Greenland waters

    Nielsen, J., Hedeholm, R. B., Simon, M. & Steffensen, John Fleng, 2014, In: Polar Biology. 37, 1, p. 37-46 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    The emergence emergency: a mudskipper's response to temperatures

    Nay, T. J., Gervais, C. R., Hoey, A. S., Johansen, J. L., Steffensen, John Fleng & Rummer, J. L., 2018, In: Journal of Thermal Biology. 78, p. 65-72

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Regulate or tolerate: Thermal strategy of a coral reef flat resident, the epaulette shark, Hemiscyllium ocellatum

    Nay, T. J., Longbottom, R. J., Gervais, C. R., Johansen, J. L., Steffensen, John Fleng, Rummer, J. L. & Hoey, A. S., 2021, In: Journal of Fish Biology. 98, 3, p. 723-732 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Habitat complexity influences selection of thermal environment in a common coral reef fish

    Nay, T. J., Johansen, J. L., Rummer, J. L., Steffensen, John Fleng, Pratchett, M. S. & Hoey, A. S., 2020, In: Conservation Physiology. 8, 1, 9 p., coaa070.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Behavioural thermoregulation in a temperature-sensitive coral reef fish, the five-lined cardinalfish (Cheilodipterus quinquelineatus)

    Nay, T. J., Johansen, J. L., Habary, A., Steffensen, John Fleng & Rummer, J. L., 2015, In: Coral Reefs. 34, 4, p. 1261-1265 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Species interactions alter the selection of thermal environment in a coral reef fish

    Nay, T. J., Johansen, J. L., Rummer, J. L., Steffensen, John Fleng & Hoey, A. S., 2021, In: Oecologia. 196, 2, p. 363-371 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Intraspecific variation in thermal tolerance differs between tropical and temperate fishes

    Nati, J. J. H., Svendsen, M. B. S., Marras, S., Killen, S. S., Steffensen, John Fleng, McKenzie, D. J. & Domenici, P., 2021, In: Scientific Reports. 11, 8 p., 21272.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Control of red cell volume and pH in trout: Effects of isoproterenol, transport inhibitors, and extracellular pH in bicarbonate/carbon dioxide-buffered media

    NIKINMAA, M., Steffensen, John Fleng, TUFTS, B. & RANDALL, D., 1987, In: Journal of Experimental Zoology. Part A: Ecological Genetics and Physiology (Print Edition). 242, 3, p. 273-281

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. 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 journal › Journal article › Research › peer-review

  13. Published

    The accuracy and limitations of a new meter used to measure aqueous carbon dioxide

    Moran, D., Tirsgård, B. & Steffensen, John Fleng, 1 Nov 2010, In: Aquacultural Engineering. 43, 3, p. 101-107 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Hypercapnia adversely affects postprandial metabolism in the European eel (Anguilla anguilla)

    Methling, C., Pedersen, P. B., Steffensen, John Fleng & Skov, P. V., 2013, In: Aquaculture. 416-417, p. 166-172 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    Pop Up Satellite Tags Impair Swimming Performance and Energetics of the European Eel (Anguilla anguilla)

    Methling, C., Tudorache, C., Skov, P. V. & Steffensen, John Fleng, 8 Jun 2011, In: P L o S One. 6, 6, p. e20797

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Effect of moderate hypoxia at three acclimation temperatures on stress responses in Atlantic cod with different haemoglobin types

    Methling, C., Aluru, N., Vijayan, M. M. & Steffensen, John Fleng, 2010, In: Comparative Biochemistry and Physiology A. 156, 4, p. 485-90 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. 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 journal › Journal article › Research › peer-review

  18. Published

    Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax

    McKenzie, D. J., Vergnet, A., Chatain, B., Vandeputte, M., Desmarais, E., Steffensen, John Fleng & Guinand, B., 2014, In: Journal of Experimental Biology. 217, 18, p. 3283-3292 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    The contribution of air breathing to aerobic scope and exercise performance in the banded knifefish Gymnotus carapo L

    McKenzie, D. J., Steffensen, John Fleng, Taylor, E. W. & Abe, A. S., 2012, In: Journal of Experimental Biology. 215, p. 1323-1330 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Physiological energetics may contribute to competitive exclusion in African killifish (Aphyosemion spp.).

    McKenzie, D. J., Svendsen, J. C., Steffensen, John Fleng & Agnese, J., 2009, In: Comparative Biochemistry and Physiology A. 2, Supplement 1, p. S150 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  21. Published

    Conservation physiology of marine fishes: state of the art and prospects for policy

    McKenzie, D. J., Axelsson, M., Chabot, D., Claireaux, G., Cooke, S. J., Corner, R. A., De Boeck, G., Domenici, P., Guerreiro, P. M., Hamer, B., Jørgensen, C., Killen, S. S., Lefevre, S., Marras, S., Michaelidis, B., Nilsson, G. E., Peck, M. A., Perez-Ruzafa, A., Rijnsdorp, A. D., Shiels, H. A. & 9 others, Steffensen, John Fleng, Svendsen, J. C., Svendsen, M. B. S., Teal, L. R., van der Meer, J., Wang, T., Wilson, J. M., Wilson, R. W. & Metcalfe, J. D., 2016, In: Conservation Physiology. 4, 1, 20 p., cow046.

    Research output: Contribution to journal › Review › Research › peer-review

  22. Published

    Abolition of reflex bradycardia by cardiac vagotomy has no effect on the regulation of oxygen uptake by Atlantic cod in progressive hypoxia

    McKenzie, D. J., Skov, P. V., Taylor, E. W. T., Wang, T. & Steffensen, John Fleng, 2009, In: Comparative Biochemistry and Physiology A. 153, 3, p. 332-8 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Local Adaptation to Altitude Underlies Divergent Thermal Physiology in Tropical Killifishes of the Genus Aphyosemion

    McKenzie, D., Estivales, G., Svendsen, J. C., Steffensen, John Fleng, Agnèse, J. & Nudds, R. L., 2013, In: P L o S One. 8, 1

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    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. 265-269

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. 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 journal › Conference abstract in journal › Research

  26. 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 journal › Journal article › Research › peer-review

  27. Published

    Effects of diet on spontaneous locomotor activity and oxygen consumption in Adriatic sturgeon (Acipenser naccarli)

    McKenzie, D. J., Piraccini, G., Steffensen, John Fleng, Bolis, C. L., Bronzi, P. & Taylor, E. W., 1995, In: Fish Physiology & Biochemistry. 14 (5), p. 341-355

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. 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. 651-658

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Growth hormone transgenic tilapia (Oreochromis sp.) compensate for increased metabolic rate to preserve exercise performance and hypoxia tolerance

    McKenzie, D. J., Martínez, R., Morales, A., Acosta, J., Taylor, E. W., Steffensen, John Fleng & Estrada, M. P., 2001, In: Journal of Physiology. xx, p. 531

    Research output: Contribution to journal › Conference abstract in journal › Research

  30. Published

    Effects of dietary fatty acid composition on metabolic rate and responses to hypoxia in the European eel (Anguilla anguilla)

    McKenzie, D. J., Piraccini, G., Piccolella, M., Steffensen, John Fleng, Bolis, C. L. & Taylor, E. W., 2000, In: Fish Physiology & Biochemistry. 22, 4, p. 281-296

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Effects of diet on spontaneous locomotor activity and oxygen consumption in Adriatic sturgeon (Acipenser naccarii)

    McKenzie, D. J., Piraccini, G., Steffensen, John Fleng, Bolis, C. L., Bronzi, P. & Taylor, E. W., Oct 1995, In: Fish Physiology and Biochemistry. 14, 5, p. 341-355 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. 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

  33. 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

  34. 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

  35. Published

    Fish swimming in schools save energy regardless of their spatial position

    Marras, S., Killen, S. S., Lindstroem, J., McKenzie, D. J., Steffensen, John Fleng & Domenici, P., 2015, In: Behavioral Ecology and Sociobiology. 69, 2, p. 219-226 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Not so fast: swimming behavior of sailfish during predator-prey interactions using high-speed video and accelerometry

    Marras, S., Noda, T., Steffensen, John Fleng, Svendsen, M. B. S., Krause, J., Wilson, A. D. M., Kurvers, R. H. J. M., Herbert-Read, J., Boswell, K. M. & Domenici, P., 2015, In: Integrative and Comparative Biology. 55, 4, p. 719-727 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Bidirectional cyclical flows increase energetic costs of station holding for a labriform swimming fish, Cymatogaster aggregata

    Luongo, S. M., Ruth, A., Gervais, C. R., Korsmeyer, K. E., Johansen, J. L., Domenici, P. & Steffensen, John Fleng, 2020, In: Conservation Physiology. 8, 1, 11 p., coaa077.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Severe hypoxia impairs lateralization in a marine teleost fish

    Lucon-Xiccato, T., Nati, J. J. H., Blasco, F. R., Johansen, J. L., Steffensen, John Fleng & Domenici, P., 2014, In: Journal of Experimental Biology. 217, 23, p. 4115-4118 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Har fisk et lymfekarsystem?

    Lomholt, J. P. & Steffensen, John Fleng, 1992, In: Naturens Verden. 1, p. 15-21

    Research output: Contribution to journal › Journal article › Communication

  40. Published

    Characterization of the functional and anatomical differences in the atrial and ventricular myocardium from three species of elasmobranch fishes: smooth dogfish (Mustelus canis), sandbar shark (Carcharhinus plumbeus), and clearnose skate (Raja eglanteria)

    Larsen, J., Bushnell, P., Steffensen, John Fleng, Pedersen, M., Qvortrup, Klaus & Brill, R., Feb 2017, In: Journal of Comparative Physiology B: Biochemical, Systems, and Environmental Physiology. 187, 2, p. 291-313 23 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    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

  42. Published

    The Evolution of Lateralization in Group Hunting Sailfish

    Kurvers, R. H. J. M., Krause, S., Viblanc, P. E., Herbert-Read, J. E., Zaslansky, P., Domenici, P., Marras, S., Steffensen, John Fleng, Svendsen, M. B. S., Wilson, A. D. M., Couillaud, P., Boswell, K. M. & Krause, J., 2017, In: Current Biology. 27, 4, p. 521-526 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Injury-mediated decrease in locomotor performance increases predation risk in schooling fish

    Krause, J., Herbert-Read, J. E., Seebacher, F., Domenici, P., Wilson, A. D. M., Marras, S., Svendsen, M. B. S., Strömbom, D., Steffensen, John Fleng, Krause, S., Viblanc, P. E., Couillaud, P., Bach, P., Sabarros, P. S., Zaslansky, P. & Kurvers, R. H. J. M., 19 Aug 2017, In: Philosophical Transactions of the Royal Society B: Biological Sciences. 372, 1727, 8 p., 20160232.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. 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

  45. Published

    Escaping from multiple visual threats: modulation of escape responses in Pacific staghorn sculpin (Leptocottus armatus)

    Kimura, H., Pfalzgraff, T., Levet, M., Kawabata, Y., Steffensen, John Fleng, Johansen, J. L. & Domenici, P., 2022, In: The Journal of Experimental Biology. 225, 9, 9 p., jeb243328.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Aerobic capacity influences the spatial position of individuals within fish schools

    Killen, S. S., Marras, S., Steffensen, John Fleng & McKenzie, D., 2012, In: Proceedings of the Royal Society B: Biological Sciences. 279, 1727, p. 357-364 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Conservation physiology of marine fishes: advancing the predictive capacity of models

    Jørgensen, C., Peck, M. A., Antognarelli, F., Azzurro, E., Burrows, M. T., Cheung, W. W. L., Cucco, A., Holt, R. E., Huebert, K. B., Marras, S., McKenzie, D., Metcalfe, J., Perez-Ruzafa, A., Sinerchia, M., Steffensen, John Fleng, Teal, L. R. & Domenici, P., 2012, In: Biology Letters. 8, 6, p. 900-903 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. 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

  49. 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. 178-185

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. 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 journal › Journal article › Research › peer-review

  51. 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 journal › Journal article › Research › peer-review

  52. Published

    Oxygen consumption of East Siberian cod: no support for the metabolic cold adaptation theory

    Jordan, Anders Drud, Jungersen, M. & Steffensen, John Fleng, 2001, In: Journal of Fish Biology. 59, 4, p. 818-823

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. 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

  54. 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. 44-52

    Research output: Contribution to journal › Journal article › Research › peer-review

  55. 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 journal › Conference abstract in journal › Research

  56. 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 journal › Journal article › Research › peer-review

  57. 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

  58. Published

    Kinematics and energetic benefits of schooling in the labriform fish, striped surfperch Embiotoca lateralis

    Johansen, J. L., Vaknin, R., Steffensen, John Fleng & Domenici, P., 2010, In: Marine Ecology - Progress Series. 420, p. 221-229 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  59. Published

    Lacunae rostralis: A new structure on the rostrum of sailfish Istiophorus platypterus

    Häge, J., Hansen, M. J., Pacher, K., Dhellemmes, F., Domenici, P., Steffensen, John Fleng, Breuker, M., Krause, S., Hildebrandt, T. B., Fritsch, G., Bach, P., Sabarros, P. S., Zaslansky, P., Mahlow, K., Schauer, M., Müller, J. & Krause, J., 2022, In: Journal of Fish Biology. 100, 5, p. 1205-1213 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  60. Published

    Protein synthesis, growth and energetics in larval herring (Clupea harengus) at different feeding regimes

    Houlihan, D. F., Pedersen, B. H., Steffensen, John Fleng & Brechin, J., 1995, In: Fish Physiology & Biochemistry. 14 (3), p. 195-208

    Research output: Contribution to journal › Journal article › Research › peer-review

  61. Published

    Protein synthesis, growth and energetics in larval herring (Clupea harengus) at different feeding regimes

    Houlihan, D. F., Pedersen, B. H., Steffensen, John Fleng & Brechin, J., Jun 1995, In: Fish Physiology & Biochemistry. 14, 3, p. 195-208 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  62. Published

    Bowhead NEIL1: molecular cloning, characterization, and enzymatic properties

    Holm, S., Larsen, R. M., Holst, C. M., Heide-Jørgensen, M. P., Steffensen, John Fleng, Stevnsner, T. & Larsen, K., 2023, In: Biochimie. 206, p. 136-149 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  63. Published

    Energy savings in sea bass swimming in a school: measurements of tail beat frequency and oxygen consumption at different swimming speeds

    Herskin, J. & Steffensen, John Fleng, 1998, In: Journal of Fish Biology. 53, 2, p. 366-376

    Research output: Contribution to journal › Journal article › Research › peer-review

  64. Published

    Proto-cooperation: group hunting sailfish improve hunting success by alternating attacks on grouping prey

    Herbert-Read, J. E., Romanczuk, P., Krause, S., Strömbom, D., Couillaud, P., Domenici, P., Kurvers, R. H. J. M., Marras, S., Steffensen, John Fleng, Wilson, A. D. M. & Krause, J., 2016, In: Royal Society of London. Proceedings B. Biological Sciences. 283, 1842, 9 p., 20161671.

    Research output: Contribution to journal › Journal article › Research › peer-review

  65. 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. 1217-1225

    Research output: Contribution to journal › Journal article › Research › peer-review

  66. 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

  67. 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 journal › Journal article › Research › peer-review

  68. 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

  69. 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. 1403-1412

    Research output: Contribution to journal › Journal article › Research › peer-review

  70. Published

    Blood O2 affinity of a large polar elasmobranch, the Greenland shark Somniosus microcephalus

    Herbert, N. A., Skov, P. V., Tirsgård, B., Bushnell, P. G., Brill, R. W., Clark, C. H. & Steffensen, John Fleng, Nov 2017, In: Polar Biology. 40, 11, p. 2297-2305 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  71. Published

    Linking hunting weaponry to attack strategies in sailfish and striped marlin

    Hansen, M. J., Krause, S., Breuker, M., Kurvers, R. H. J. M., Dhellemmes, F., Viblanc, P. E., Müller, J., Mahlow, C., Boswell, K., Marras, S., Domenici, P., Wilson, A. D. M., Herbert-Read, J. E., Steffensen, John Fleng, Fritsch, G., Hildebrandt, T. B., Zaslansky, P., Bach, P., Sabarros, P. S. & Krause, J., 2020, In: Proceedings of the Royal Society B: Biological Sciences. 287, 1918, 9 p., 20192228.

    Research output: Contribution to journal › Journal article › Research › peer-review

  72. Published

    Optimum temperature of a northern population of Arctic charr (Salvelinus alpinus) using heart rate Arrhenius breakpoint analysis

    Hansen, A. K., Byriel, David Bille, R. Jensen, M., Steffensen, John Fleng & Svendsen, M. B. S., 2017, In: Polar Biology. 40, 5, p. 1063-1070 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  73. Published

    Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?

    Habary, A., Johansen, J. L., Nay, T. J., Steffensen, John Fleng & Rummer, J. L., 2017, In: Global Change Biology. 23, 2, p. 566-577 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  74. 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 journal › Journal article › Research › peer-review

  75. Published

    Excess post-hypoxic oxygen consumption is independent from lactate accumulation in two cyprinid fishes

    Genz, J., Jyde, M. B., Svendsen, J. C., Steffensen, John Fleng & Ramløv, H., 2013, In: Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology. 165, 1, p. 54-60 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  76. Published

    Energetic extremes in aquatic locomotion by coral reef fishes

    Fulton, C. J., Johansen, J. L. & Steffensen, John Fleng, 2013, In: PLoS ONE. 8, 1, 6 p., e54033.

    Research output: Contribution to journal › Journal article › Research › peer-review

  77. 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 journal › Journal article › Research › peer-review

  78. Published

    The effects of temperature on specific dynamic action and ammonia excretion in pikeperch (Sander lucioperca)

    Frisk, M., Steffensen, John Fleng & Skov, P. V., 2013, In: Aquaculture. 404-405, p. 65-70 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  79. Published

    Plasma FITC-dextran exchange between the primary and secondary circulatory systems in the Atlantic cod, Gadus Morhua.

    Fischer, C. & Steffensen, John Fleng, 2008, In: Fish Physiology & Biochemistry. 34, 3, p. 245-9 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  80. Published

    Dermal Denticles of Three Slowly Swimming Shark Species: Microscopy and Flow Visualization

    Feld, K., Kolborg, Anne Noer, Nyborg, C. M., Salewski, M., Steffensen, John Fleng & Berg-Sørensen, K., 2019, In: Biomimetics. 4, 2, 20 p., 38.

    Research output: Contribution to journal › Journal article › Research › peer-review

  81. 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

  82. Published

    Coronary ligation reduces maximum sustained swimming speed in Chinook salmon, Oncorhynchus tshawytscha.

    Farrell, A. P. & Steffensen, John Fleng, 1987, In: Comparative Biochemistry and Physiology - Part A: Comparative Physiology. 87, 1, p. 35-7 2 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  83. Published

    An analysis of the energetic cost of the branchial and cardiac pumps during sustained swimming in trout

    FARRELL, A. & Steffensen, John Fleng, 1987, In: {FISH PHYSIOLOGY AND BIOCHEMISTRY}. 4, 2, p. 73-79

    Research output: Contribution to journal › Journal article › Research › peer-review

  84. Published

    Effects of exercise training and coronary ablation on swimming performance, heart size, and cardiac enzymes in rainbow trout, Oncorhynchus mykiss

    FARRELL, A., JOHANSEN, J., Steffensen, John Fleng, MOYES, C., WEST, T. & SUAREZ, R., 1990, In: Canadian Journal of Zoology. 68, 6, p. 1174-1179

    Research output: Contribution to journal › Journal article › Research › peer-review

  85. 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 journal › Journal article › Research › peer-review

  86. Published

    Partitioning the metabolic scope: the importance of anaerobic metabolism and implications for the oxygen- and capacity-limited thermal tolerance (OCLTT) hypothesis

    Ejbye-Ernst, R., Michaelsen, T. Y., Tirsgård, B., Wilson, J. M., Jensen, L. F., Steffensen, John Fleng, Pertoldi, C., Aarestrup, K. & Svendsen, J. C., 2016, In: Conservation Physiology. 4, 1, 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  87. Published

    Advancing Research for the Management of Long-Lived Species: A Case Study on the Greenland Shark

    Edwards, J. E., Hiltz, E., Broell, F., Bushnell, P. G., Campana, S. E., Christiansen, J. S., Devine, B. M., Gallant, J. J., Hedges, K. J., MacNeil, M. A., McMeans, B. C., Nielsen, J., Præbel, K., Skomal, G. B., Steffensen, John Fleng, Walter, R. P., Watanabe, Y. Y., VanderZwaag, D. L. & Hussey, N. E., 2019, In: Frontiers in Marine Science. 6, p. 1-27 87.

    Research output: Contribution to journal › Journal article › Research › peer-review

  88. Published

    The effect of hypoxia on fish schooling

    Domenici, P., Steffensen, John Fleng & Marras, S., 19 Aug 2017, In: Philosophical Transactions of the Royal Society B: Biological Sciences. 372, 1727, 13 p., 20160236.

    Research output: Contribution to journal › Journal article › Research › peer-review

  89. 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

  90. Published

    Fast-starting after a breath: air-breathing motions are kinematically similar to escape responses in the catfish Hoplosternum littorale

    Domenici, P., Norin, T., Bushnell, P. G., Johansen, J. L., Skov, P. V., Svendsen, M. B. S., Steffensen, John Fleng & Abe, A. S., 2015, In: Biology Open. 4, p. 79-85 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  91. Published

    The effect of hypoxia on fish swimming performance and behaviour: swimming physiology of fish

    Domenici, P., Herbert, N. A., Lefrançois, C., Steffensen, John Fleng & McKenzie, D., 2013, Swimming Physiology of Fish. Palstra, A. P. & Planas, J. V. (eds.). Springer Science+Business Media, p. 129-159 31 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  92. Published

    How sailfish use their bills to capture schooling prey

    Domenici, P., Wilson, A. D. M., Kurvers, R. H. J. M., Marras, S., Herbert-Read, J. E., Steffensen, John Fleng, Krause, S., Viblanc, P. E., Couillaud, P. & Krause, J., 2014, In: Proceedings of the Royal Society B: Biological Sciences. 281, 1784, 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  93. Published

    The effect of progressive hypoxia on swimming activity and schooling in Atlantic herring

    Domenici, P., Steffensen, John Fleng & Batty, R. S., 2000, In: Journal of Fish Biology. 57, 6, p. 1526-1538

    Research output: Contribution to journal › Journal article › Research › peer-review

  94. Published

    Physiological traits of the Greenland shark Somniosus microcephalus obtained during the TUNU-Expeditions to Northeast Greenland

    Di Prisco, G., Ademollo, N., Ancora, S., Christiansen, J. S., Coppola, D., Corsolini, S., Ferrando, S., Ghigliotti, L., Giordano, D., Lynghammar, A., Nielsen, J., Pisano, E., Russo, R., Steffensen, John Fleng & Verde, C., 2021, Life in Extreme Environments: Insights in Biological Capability. Di Prisco, G., Edwards, H. G. M., Elster, J. & Huiskes, A. H. L. (eds.). Cambridge University Press, p. 11-41 (Ecological Reviews).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  95. Published

    Oil gland and oil pores in billfishes: in search of a function

    Dhellemmes, F., Hansen, M. J., Bouet, S. D., Videler, J. J., Domenici, P., Steffensen, John Fleng, Hildebrandt, T., Fritsch, G., Bach, P., Sabarros, P. S., Krüger, A., Kurvers, R. H. J. M. & Krause, J., 2020, In: The Journal of Experimental Biology. 223, 7 p., jeb224956.

    Research output: Contribution to journal › Journal article › Research › peer-review

  96. 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

  97. Published

    Nitric oxide permits hypoxia-induced lymphatic perfusion by controlling arterial-lymphatic conduits in zebrafish and glass catfish

    Dahl Ejby Jensen, L., Cao, R., Hedlund, E., Söll, I., Lundberg, J. O., Hauptmann, G., Steffensen, John Fleng & Cao, Y., 2009, In: Proceedings of the National Academy of Science of the United States of America. 106, 43, p. 18408-13 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  98. Published

    The effects of acute hypoxia and hypercapnia on oxygen consumption of the freshwater European eel

    Cruz-Neto, A. P. & Steffensen, John Fleng, 1997, In: Journal of Fish Biology. 50, p. 759-769

    Research output: Contribution to journal › Journal article › Research › peer-review

  99. Published

    The Greenland shark: a new challenge for the oxidative stress theory of ageing?

    Costantini, D., Smith, S., Killen, S. S., Nielsen, J. & Steffensen, John Fleng, 2017, In: Comparative Biochemistry and Physiology. Part A: Molecular & Integrative Physiology. 203, p. 227-232 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  100. Published

    Excess postexercise oxygen consumption decreases with swimming duration in a labriform fish: integrating aerobic and anaerobic metabolism across time

    Cordero, G. A., Methling, C., Tirsgaard, B., Steffensen, John Fleng, Domenici, P. & Svendsen, J. C., 2019, In: Journal of Experimental Zoology. Part A: Ecological and Integrative Physiology . 331, 10, p. 577-586 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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