John Fleng Steffensen

John Fleng Steffensen

Professor

ORCID: 0000-0002-4477-8039

Publication year:
All
151 - 200 out of 233Page size: 50
Sort by: 1st author
  1. Published

    The Transition between Branchial Pumping and Ram Ventilation in Fishes: Energetic Consequences and Dependence on Water Oxygen Tension

    Steffensen, John Fleng, 1985, In: Journal of Experimental Biology. 114, p. 141-150

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

  2. 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 journal › Conference abstract in journal › Research

  3. Published

    The Influence of Body Size on Behavioral Thermal Preference in Atlantic Cod (Gadus morhua): Larger Fish Favor Colder Waters

    Schakmann, M., Christensen, E. A. F., Steffensen, John Fleng & Svendsen, M. B. S., 2023, In: Fishes. 8, 12, 11 p., 596.

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

  4. Published

    Swimming in unsteady water flows: is turning in a changing flow an energetically expensive endeavor for fish?

    Schakmann, M., Steffensen, John Fleng, Bushnell, P. G. & Korsmeyer, K. E., 2020, In: The Journal of Experimental Biology. 223, 6, 10 p.

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

  5. Published

    Latency of mechanically stimulated escape responses in the Pacific spiny dogfish, Squalus suckleyi

    Schakmann, M., Becker, V., Søgaard, M., Johansen, J. L., Steffensen, John Fleng & Domenici, P., 2021, In: Journal of Experimental Biology. 224, 6 p., jeb230698.

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

  6. Published

    Lethal oxygen levels at different temperatures and the preferred temperature during hypoxia of the Atlantic cod Gadus morhua L.

    Schurmann, H. & Steffensen, John Fleng, 1992, In: Journal of Fish Biology. 41, 6, p. 927-934

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

  7. Published

    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. 75-86

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

  8. Published

    Spontaneous swimming activity of Atlantic cod Gadus morhua exposed to graded hypoxia at three temperatures

    Schurmann, H. & Steffensen, John Fleng, 1994, In: Journal of Experimental Biology. 197, p. 129-142

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

  9. Published

    Effects of temperature, hypoxia and activity on the metabolism of juvenile Atlantic cod

    Schurmann, H. & Steffensen, John Fleng, 1997, In: Journal of Fish Biology. 50, p. 1166-1180

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

  10. Published

    Fisk foretrækker lavere temperatur under iltsvind

    Schurmann, H. & Steffensen, John Fleng, 1991, In: Vand & Miljø. 9, p. 434-437

    Research output: Contribution to journal › Journal article › Communication

  11. Published

    Larval developmental rate, metabolic rate and future growth performance in Atlantic salmon

    Serrano, J. V., Aberg, M., Gjoen, H. M., Steffensen, John Fleng & Hyglund, E., 2009, In: Comparative Biochemistry and Physiology A. 2, Suppl. 1, p. S140

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

  12. Published

    Muscle dynamics in fish during steady swimming

    Shadwick, R., Steffensen, John Fleng, Katz, S. & Knower, T., 1998, In: Integrative and Comparative Biology. 38, 4, p. 755-770

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

  13. Published

    Blood pressure in the Greenland shark as estimated from ventral aortic elasticity

    Shadwick, R. E., Bernal, D., Bushnell, P. G. & Steffensen, John Fleng, Oct 2018, In: Journal of Experimental Biology. 221, 19, p. 1-6 jeb186957.

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

  14. Published

    The angular position of a refuge affects escape responses in staghorn sculpin Leptocottus armatus

    Shi, X., Møller, J. S., Højgaard, J., Johansen, J. L., Steffensen, John Fleng, Liu, D. & Domenici, P., Jun 2017, In: Journal of Fish Biology. 90, 6, p. 2434-2442 9 p.

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

  15. 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

  16. Published

    Fiskenes sekundære cirkulationssystem

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

    Research output: Contribution to journal › Journal article › Communication

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

  18. Published

    Suckling behaviour in a viviparous teleost: role of the post-ovulatory follicle in matemal-embryonic exchange

    Skov, P. V., Sørensen, T. & Steffensen, John Fleng, 2008, In: Comparative Biochemistry and Physiology A. 150, 3, Supplement, p. S122 1 p., A6.27.

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

  19. 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

  20. 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 journal › Conference abstract in journal › Research

  21. Published

    Embryonic suckling and maternal specializations in the live-bearing teleost Zoarces viviparus

    Skov, P. V., Steffensen, John Fleng, Sorensen, T. F. & Qvortrup, Klaus, 15 Nov 2010, In: Journal of Experimental Marine Biology and Ecology. 395, 1-2, p. 120-127 8 p.

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

  22. 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

  23. Published

    Effect of closed v. intermittent-flow respirometry on hypoxia tolerance in the shiner perch Cymatogaster aggregata

    Snyder, S., Nadler, L. E., Bayley, J. S., Svendsen, M. B. S., Johansen, J. L., Domenici, P. & Steffensen, John Fleng, 2016, In: Journal of Fish Biology. 88, 1, p. 252-264 13 p.

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

  24. Published

    Swimming performance, venous oxygen tension and cardiac performance of coronary-ligated rainbow trout, Oncorhynchus mykiss, exposed to progressive hypoxia.

    Steffensen, John Fleng & Farrell, A. P., 1998, In: Comparative Biochemistry and Physiology A. 119, 2, p. 585-92 7 p.

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

  25. Published

    Energetic cost of active branchial ventilation in the sharksucker, Echeneis naucrates.

    Steffensen, John Fleng & Lomholt, J. P., 1983, In: Journal of Experimental Biology. 103, p. 185-92 7 p.

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

  26. Published

    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

  27. Published

    Cutaneous oxygen uptake and its relation to skin blood perfusion and ambient salinity in the plaice, Pleuronectes platessa.

    Steffensen, John Fleng & Lomholt, J. P., 1985, In: Comparative Biochemistry and Physiology - Part A: Comparative Physiology. 81, 2, p. 373-5 2 p.

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

  28. Published

    Effect of burst swimming and adrenaline infusion on O2 consumption and CO2 excretion in rainbow trout, Salmo gairdneri.

    Steffensen, John Fleng, Tufts, B. L. & Randall, D. J., 1987, In: Journal of Experimental Biology. 131, p. 427-34 7 p.

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

  29. 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 journal › Conference abstract in journal › Research

  30. Published

    Oxygen conditions in fish schools

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

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

  31. Published

    Oxygen consumption in four species of teleosts from Greenland: no evidence of metabolic cold adaptation

    Steffensen, John Fleng, Bushnell, P. G. & Schurmann, H., 1994, In: Polar Biology. 14, 1, p. 49-54

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

  32. 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 proceeding › Report chapter › Research

  33. 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

  34. Published

    Fiskene i de danske farvande

    Steffensen, John Fleng, 2006, HAVET: Naturen i Danmark. Fenchel, T. (ed.). Gyldendal, p. 255-310

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  35. Published

    The effect of hypoxia on the preferred temperature of the rainbow trout, Oncorhynchus mykiss, and the Atlantic cod, Gadus morhua

    Steffensen, John Fleng & Schurmann, H., 1992, In: Proc.12th Symp.Baltic Mar.Biol., Helsingør, Denmark. p. 157-162

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

  36. 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 proceeding › Book chapter › Research

  37. 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 proceeding › Book chapter › Research

  38. Published

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

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

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

  39. 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. 239-244

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

  40. Published

    RELATION BETWEEN STRESS COPING STYLE, LARVAL DEVELOPMENT AND TIME TO EMERGANCE IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

    Steffensen, John Fleng, 2010.

    Research output: Contribution to conference › Conference abstract for conference › Research

  41. Published

    Fast-starting for a breath: Air breathing in Hoplosternum littorale

    Steffensen, John Fleng, 2012. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  42. 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

  43. Published

    ENERGETIC EXTREMES IN A HOSTILE HABITAT: FISH LOCOMOTION ON WAVE-SWEPT CORAL REEFS

    Steffensen, John Fleng, 2010.

    Research output: Contribution to conference › Conference abstract for conference › Research

  44. Published

    Komparative studier af hvid- og rødblodede antarktiske fisks fysiologi og kardiovasculære anatomi.

    Steffensen, John Fleng, 2008, Dansk Ekspeditionsfond - Galathea 3 2006-2007. 1. ed. Dansk Ekspeditionsfond Galathea 3 og Thaning & Appel, p. 200-204

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  45. Published

    Energetics of swimming of schooling fish

    Steffensen, John Fleng, 2012.

    Research output: Contribution to conference › Conference abstract for conference › Research

  46. Published

    In vivo near real time imaging of oxygen partial pressures in the glass catfish (Kryptopterus bichirris)

    Steffensen, John Fleng, 2012.

    Research output: Contribution to conference › Conference abstract for conference › Research

  47. Published

    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

  48. Published

    DIFFERENCES IN POST HATCH METABOLIC RATE AND DEVELOPMENTAL RATE IN ATLANTIC SALMON (SALMO SALAR L): EVIDENCE FOR COMPENSATORY GROWTH?

    Steffensen, John Fleng, 2010.

    Research output: Contribution to conference › Conference abstract for conference › Research

  49. 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 journal › Conference abstract in journal › Research

  50. Published

    THE EFFECT OF HYPOXIA ON THE MAXIMUM MATABOLIC RATE AND SPECIFIC DYNAMIC ACTION IN ATLANTIC COD Gadus morhua.

    Steffensen, John Fleng, 2010.

    Research output: Contribution to conference › Conference abstract for conference › Research

Previous 1 2 3 4 5 Next

ID: 2881