John Fleng Steffensen
Professor
Marine Biology
Strandpromenaden 5
3000 Helsingør
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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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Critical threshold size for overwintering sandeels (Ammodytes marinus)
van Deurs, M., Hartvig, M. & Steffensen, John Fleng, 1 Dec 2011, In: Marine Biology. 158, 12, p. 2755-2764 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Flight cost and economy of nectar-feeding in tha bat Glossophage soricina (Phyllostomidae: Glossophaginae)
Winter, Y., von Helversen, O., Norgerg, U. M., Kunz, T. H. & Steffensen, John Fleng, 1993, Plant-animal interactions in tropical enviroments. Bonn: Museum Alexander Koenig, p. 167-174Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Primary versus secondary drivers of foraging activity in sandeel schools (Ammodytes tobianus)
Van Deurs, M. S. K., Behrens, J. W., Warnar, T. & Steffensen, John Fleng, 2011, In: Marine Biology. 158, 8, p. 1781-1789 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Ion exchange mechanisms on the erythrocyte membrane of the aquatic salamander, Amphiuma tridactylum.
Tufts, B. L., Nikinmaa, M., Steffensen, John Fleng & Randall, D. J., 1987, In: Journal of Experimental Biology. 133, p. 329-38 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Pectoral fin beat frequency predicts oxygen consumption during spontaneous activity in a labriform swimming fish (Embiotoca lateralis)
Tudorache, C., Jordan, Anders Drud, Svendsen, J. C., Domenici, P., DeBoeck, G. & Steffensen, John Fleng, 2009, In: Environmental Biology of Fishes. 84, p. 121-127 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Prolonged SDA and reduced digestive efficiency under elevated CO2 may explain reduced growth in Atlantic cod (Gadus morhua)
Tirsgård, B., Moran, D. & Steffensen, John Fleng, 2015, In: Aquatic Toxicology. 158, p. 171-180 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The effect of temperature and body size on metabolic scope of activity in juvenile Atlantic cod Gadus morhua L.
Tirsgård, B., Behrens, J. W. & Steffensen, John Fleng, 2015, In: Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology. 179, p. 89-94 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of temperature on specific dynamic action in Atlantic cod Gadus morhua
Tirsgård, B., Svendsen, J. C. & Steffensen, John Fleng, 2015, In: Fish Physiology & Biochemistry. 41, 1, p. 41-50 10 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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Sources of variation in oxygen consumption of aquatic animals demonstrated by simulated constant oxygen consumption and respirometers of different sizes
Svendsen, M. B. S., Bushnell, P. G., Christensen, E. A. F. & Steffensen, John Fleng, 2016, In: Journal of Fish Biology. 88, 1, p. 51-64 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Are all bony fishes oxygen regulators? Evidence for oxygen regulation in a putative oxygen conformer, the swamp eel Synbranchus marmoratus
Svendsen, M. B. S., Johansen, J. L., Bushnell, P. G., Skov, P. V., Norin, T., Domenici, P., Steffensen, John Fleng & Abe, A., 2019, In: Journal of Fish Biology. 94, 1, p. 178-182Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of harmful algal blooms on fish: insights from Prymnesium parvum
Svendsen, M. B. S., Andersen, N. G., Hansen, Per Juel & Steffensen, John Fleng, 2018, In: Fishes. 3, 1, 12 p., 11.Research output: Contribution to journal › Journal article › Research › peer-review
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Design and setup of intermittent-flow respirometry system for aquatic organisms
Svendsen, M. B. S., Bushnell, P. G. & Steffensen, John Fleng, 2016, In: Journal of Fish Biology. 88, 1, p. 26-50 25 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Maximum swimming speeds of sailfish and three other large marine predatory fish species based on muscle contraction time and stride length: a myth revisited
Svendsen, M. B. S., Domenici, P., Marras, S., Krause, J., Boswell, K. M., Rodriguez-Pinto, I., Wilson, A. D. M., Kurvers, R. H. J. M., Viblanc, P. E., Finger, J. S. & Steffensen, John Fleng, 2016, In: Biology Open. 5, 10, p. 1415-1419 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Intraspecific variation in aerobic and anaerobic locomotion: gilthead sea bream (Sparus aurata) and Trinidadian guppy (Poecilia reticulata) do not exhibit a trade-off between maximum sustained swimming speed and minimum cost of transport
Svendsen, J. C., Tirsgård, B., Cordero, G. A. & Steffensen, John Fleng, 2015, In: Frontiers in Physiology. 6, 12 p., 43.Research output: Contribution to journal › Journal article › Research › peer-review
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Partition of aerobic and anaerobic swimming costs related to gait transitions in a labriform fish
Svendsen, J. C., Tudorache, C., Jordan, A. D., Steffensen, John Fleng, Aarestrup, K. & Domenici, P., 2010.Research output: Contribution to conference › Conference abstract for conference › Research
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Effects of intraspecific variation in reproductive traits, pectoral fin use and burst swimming on metabolic rates and swimming performance in the Trinidadian guppy (Poecilia reticulata)
Svendsen, J. C., Banet, A. I., Christensen, R. H. B., Steffensen, John Fleng & Aarestrup, K., 2013, In: Journal of Experimental Biology. 216, 18, p. 3564-3574 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Excess posthypoxic oxygen consumption in rainbow trout (Oncorhynchus mykiss): recovery in normoxia and hypoxia
Svendsen, J. C., Steffensen, John Fleng, Aarestrup, K., Frisk, M., Etzerodt, A. & Jyde, M., 2012, In: Canadian Journal of Zoology. 90, 1, p. 1-11 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Partition of aerobic and anaerobic swimming costs related to gait transitions in a labriform swimmer
Svendsen, J. C., Tudorache, C., Jordan, A. D., Steffensen, John Fleng, Aarestrup, K. & Domenici, P., 2010, In: Journal of Experimental Biology. 213, Pt 13, p. 2177-83 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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The effects of swimming pattern on the energy use of gilthead seabream (Sparus aurata L.)
Steinhausen, M. F., Steffensen, John Fleng & Andersen, N. G., 2010, In: Marine and Freshwater Behaviour and Physiology. 43, 4, p. 227-241Research 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 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
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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
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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
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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
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SWISTRACK - AN OPEN SOURCE, SOFTWARE PACKAGE APPLICABLE TO TRACKING OF FISH LOCOMOTION AND BEHAVIOUR.
Steffensen, John Fleng, 2010.Research output: Contribution to conference › Conference abstract for conference › Research
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ENERGETIC EXTREMES IN REEF FISH OCCUPYING HARSH HABITATS
Steffensen, John Fleng, 2009.Research output: Contribution to conference › Conference abstract for conference › Research
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Fish positions relative to neighbours modulate the hydrodynamic advantages of schooling
Steffensen, John Fleng, 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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A MODEL OF OXYGEN CONDITIONS IN A SCHOOL OF FISH BASED ON EXPERIMENTAL RESPIROMETRY
Steffensen, John Fleng, 2010.Research output: Contribution to conference › Conference abstract for conference › Research
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AquaResp® - free open-source software for measuring oxygen consumption of resting aquatic animals
Steffensen, John Fleng, 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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Partition of aerobic and anaerobic swimming costs and their correlation to tail-beat frequency and burst activity in Sparus aurata
Steffensen, John Fleng, 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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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
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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
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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
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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
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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. 200-204Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
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Energetics of swimming of schooling fish
Steffensen, John Fleng, 2012.Research output: Contribution to conference › Conference abstract for conference › Research
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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
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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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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
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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
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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
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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
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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
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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
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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. 157-162Research output: Contribution to journal › Conference 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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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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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. 818-823Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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. 49-54Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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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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
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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
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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
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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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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
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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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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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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
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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
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Fiskenes sekundære cirkulationssystem
Skov, P. V. & Steffensen, John Fleng, 2003, In: Naturens Verden. 10, p. 14-19Research output: Contribution to journal › Journal article › Communication
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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
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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
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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
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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. 755-770Research output: Contribution to journal › Journal article › Research › peer-review
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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. S140Research output: Contribution to journal › Conference abstract in journal › Research
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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. 927-934Research 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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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. 129-142Research output: Contribution to journal › Journal article › Research › peer-review
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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. 1166-1180Research output: Contribution to journal › Journal article › Research › peer-review
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Fisk foretrækker lavere temperatur under iltsvind
Schurmann, H. & Steffensen, John Fleng, 1991, In: Vand & Miljø. 9, p. 434-437Research output: Contribution to journal › Journal article › Communication
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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
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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
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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
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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
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Some errors in respirometry of aquatic breathers: How to avoid and correct for them
Steffensen, John Fleng, 1989, In: Fish Physiology & Biochemistry. 6, 1, p. 49-59Research output: Contribution to journal › Journal article › Research › peer-review
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Gill ventilation and oxygen extraction during graded hypoxia in 2 ecologically distinct species of flatfish, the flounder (Platichthys flesus) and the plaice (Pleuronectes platessa)
Steffensen, John Fleng, LOMHOLT, J. & JOHANSEN, K., 1982, In: Environmental Biology of Fishes. 7, 2, p. 157-164Research output: Contribution to journal › Journal article › Research › peer-review
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An automated swimming respirometer
Steffensen, John Fleng, JOHANSEN, K. & BUSHNELL, P., 1984, In: Comparative Biochemistry and Physiology A. 79, 3, p. 437-440Research 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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In vivo Observations on a Specialized Microvasculature, the Primary and Secondary Vessels in Fishes
Steffensen, John Fleng, LOMHOLT, J. & VOGEL, W., 1986, In: Acta Zoologica. 67, 4, p. 193-200Research output: Contribution to journal › Journal article › Research › peer-review
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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. 141-150Research output: Contribution to journal › Journal article › Research › peer-review
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Physiological effects of temperature on Greenland halibut Reinhardtius hippoglossoides shows high vulnerability of Arctic stenotherms to global warming
Ruth, A., Svendsen, M. B. S., Nygaard, R., Christensen, E. A. F., Bushnell, P. G. & Steffensen, John Fleng, 2023, In: Journal of Fish Biology. 103, 3, p. 675-683 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Function and control of the fish secondary vascular system, a contrast to mammalian lymphatic systems
Rummer, J. L., Wang, S., Steffensen, John Fleng & Randall, D. J., 2014, In: Journal of Experimental Biology. 217, p. 751-757 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- E-pub ahead of print
A novel protocol for rapid deployment of heart rate data storage tags in Atlantic bluefin tuna Thunnus thynnus reveals cardiac responses to temperature and feeding
Rouyer, T., Bonhommeau, S., Bernard, S., Kerzerho, V., Derridj, O., Bjarnason, Allal, H., Steffensen, John Fleng, Deguara, S., Wendling, B., Bal, G., Thambithurai, D. & Mckenzie, D. J., 2023, (E-pub ahead of print) In: Journal of Fish Biology.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Hypoxia-induced metastasis model in embryonic zebrafish
Rouhi, P., Jensen, L. D., Cao, Z., Hosaka, K., Lanne, T., Wahlberg, E., Steffensen, John Fleng & Cao, Y., 1 Dec 2010, In: Nature Protocols (Print). 5, 12, p. 1911-1918 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- Published
Differential occurrence of immune cells in the primary and secondary vascular systems in rainbow trout, Oncorhynchus mykiss (Walbaum)
Rasmussen, K. J., Steffensen, John Fleng & Buchmann, Kurt, 2013, In: Journal of Fish Diseases. 36, 7, p. 675-679 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Excess post-hypoxic oxygen consumption in Atlantic cod Gadus morhua
Plambech, M., Van Deurs, M., Steffensen, John Fleng, Tirsgård, B. & Behrens, J. W., 2013, In: Journal of Fish Biology. 83, 2, p. 396-403 8 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
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
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
- Published
The cost of hovering and forward flight in a nectar-feeding bat, Glossophaga soricina, estimated from aerodynamic theory.
Norberg, U. M., Kunz, T. H., Steffensen, John Fleng, Winter, Y. & von Helversen, O., 1993, In: Journal of Experimental Biology. 182, p. 207-27 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Active predation by Greenland shark Somniosus microcephalus
Nielsen, J., hedeholm, R., Simon, M. & Steffensen, John Fleng, 2013.Research output: Contribution to conference › Conference abstract for conference › Research
ID: 2881
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2804
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Embryonic suckling and maternal specializations in the live-bearing teleost Zoarces viviparus
Research output: Contribution to journal › Journal article › Research › peer-review
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1726
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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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1673
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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