Michael Axelsson
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View article: Analysis of a human-mediated microbioinvasion: the global spread of the benthic foraminifer <i>Trochammina hadai</i> Uchio, 1962
Analysis of a human-mediated microbioinvasion: the global spread of the benthic foraminifer <i>Trochammina hadai</i> Uchio, 1962 Open
A non-indigenous species (NIS) of benthic foraminifera was first identified in a core collected in 1993 in San Francisco Bay, California, USA, and subsequently identified as Trochammina hadai Uchio, 1962. Archived samples and literature re…
View article: Physiological responses of Atlantic cod to climate change indicate that coastal ecotypes may be better adapted to tolerate ocean stressors
Physiological responses of Atlantic cod to climate change indicate that coastal ecotypes may be better adapted to tolerate ocean stressors Open
View article: Beating the heart failure odds: long-term survival after myocardial ischemia in juvenile rainbow trout
Beating the heart failure odds: long-term survival after myocardial ischemia in juvenile rainbow trout Open
Juvenile rainbow trout exhibit a remarkable capacity to recover from cardiac injury caused by myocardial ischemia. Recovery from cardiac damage occurs through adaptive ventricular remodeling, coupled with a rapid cardiac revascularization …
View article: Relationship between hemolysis and lipid oxidation in red blood cell-spiked fish muscle; dependance on pH and blood plasma
Relationship between hemolysis and lipid oxidation in red blood cell-spiked fish muscle; dependance on pH and blood plasma Open
View article: Ischemia-induced alterations in the electrocardiogram of salmonid fish
Ischemia-induced alterations in the electrocardiogram of salmonid fish Open
Cardiovascular diseases such as coronary arteriosclerosis are widespread and constitute severe health and welfare problems for both farmed and wild salmonid fish. However, effective tools for rapid screening and analysing heart diseases in…
View article: Under the sea: How can we use heart rate and accelerometers to remotely assess fish welfare in salmon aquaculture?
Under the sea: How can we use heart rate and accelerometers to remotely assess fish welfare in salmon aquaculture? Open
Recent advances in bio-sensing technologies open for new possibilities to monitor and safeguard the welfare of fishes in aquaculture. Yet before taken into practice, the applicability of all novel biosensors must be validated, and the brea…
View article: Increased reliance on coronary perfusion for cardiorespiratory performance in seawater-acclimated rainbow trout
Increased reliance on coronary perfusion for cardiorespiratory performance in seawater-acclimated rainbow trout Open
Salmonid ventricles are composed of spongy and compact myocardium, the latter being perfused via a coronary circulation. Rainbow trout (Oncorhynchus mykiss) acclimated to sea water have higher proportions of compact myocardium and display …
View article: Relationship between Hemolysis and Lipid Oxidation in Red Blood Cell-Spiked Fish Muscle; Dependance on Ph and Blood Plasma
Relationship between Hemolysis and Lipid Oxidation in Red Blood Cell-Spiked Fish Muscle; Dependance on Ph and Blood Plasma Open
View article: Increased reliance on coronary perfusion for cardiorespiratory performance in seawater-acclimated rainbow trout
Increased reliance on coronary perfusion for cardiorespiratory performance in seawater-acclimated rainbow trout Open
Dataset, metadata, figures and table from a study on the influence of coronary perfusion to the heart for cardiorespiratory performance in rainbow trout acclimated to fresh- or seawater.
View article: Exploring how plasma- and muscle-related parameters affect trout hemolysis as a route to prevent hemoglobin-mediated lipid oxidation of fish muscle
Exploring how plasma- and muscle-related parameters affect trout hemolysis as a route to prevent hemoglobin-mediated lipid oxidation of fish muscle Open
View article: Assessing the effectiveness of percussive and electrical stunning in rainbow trout: Does an epileptic-like seizure imply brain failure?
Assessing the effectiveness of percussive and electrical stunning in rainbow trout: Does an epileptic-like seizure imply brain failure? Open
Both percussive and electrical stunning have been highlighted as methods that can be used to quickly render fish unconscious before being killed. However, accurately assessing unconsciousness in animals following stunning remains challengi…
View article: It takes time to heal a broken heart: ventricular plasticity improves heart performance after myocardial infarction in rainbow trout, <i>Oncorhynchus mykiss</i>
It takes time to heal a broken heart: ventricular plasticity improves heart performance after myocardial infarction in rainbow trout, <i>Oncorhynchus mykiss</i> Open
Coronary arteriosclerosis is a common feature of both wild and farmed salmonid fishes and may be linked to stress-induced cardiac pathologies. Yet, the plasticity and capacity for long-term myocardial restructuring and recovery following a…
View article: Continuous gastric saline perfusion elicits cardiovascular responses in freshwater rainbow trout (Oncorhynchus mykiss)
Continuous gastric saline perfusion elicits cardiovascular responses in freshwater rainbow trout (Oncorhynchus mykiss) Open
View article: Bio-sensing technologies in aquaculture: how remote monitoring can bring us closer to our farm animals
Bio-sensing technologies in aquaculture: how remote monitoring can bring us closer to our farm animals Open
Farmed aquatic animals represent an increasingly important source of food for a growing human population. However, the aquaculture industry faces several challenges with regard to producing a profitable, ethical and environmentally sustain…
View article: Resilience of cardiac performance in Antarctic notothenioid fishes in a warming climate
Resilience of cardiac performance in Antarctic notothenioid fishes in a warming climate Open
Warming in the region of the Western Antarctic Peninsula is occurring at an unprecedented rate, which may threaten the survival of Antarctic notothenioid fishes. Herein, we review studies characterizing thermal tolerance and cardiac perfor…
View article: Coronary blood flow influences tolerance to environmental extremes in fish
Coronary blood flow influences tolerance to environmental extremes in fish Open
Approximately half of all fishes have, in addition to the luminal venous O2 supply, a coronary circulation supplying the heart with fully oxygenated blood. Yet, it is not fully understood how coronary O2 delivery affects tolerance to envir…
View article: Microsurgery training during COVID‐19 pandemic: Practical recommendations from the International Society for Experimental Microsurgery and International Microsurgery Simulation Society
Microsurgery training during COVID‐19 pandemic: Practical recommendations from the International Society for Experimental Microsurgery and International Microsurgery Simulation Society Open
Data sharing not applicable
View article: Energetic savings and cardiovascular dynamics of a marine euryhaline fish (Myoxocephalus scorpius) in reduced salinity
Energetic savings and cardiovascular dynamics of a marine euryhaline fish (Myoxocephalus scorpius) in reduced salinity Open
View article: Continuous physiological welfare evaluation of European whitefish (Coregonus lavaretus) during common aquaculture practices leading up to slaughter
Continuous physiological welfare evaluation of European whitefish (Coregonus lavaretus) during common aquaculture practices leading up to slaughter Open
European whitefish (Coregonus lavaretus) is an aquaculture species with the potential for expanded cultivation in the fresh and brackish waters of Northern Europe. Yet, relatively little species-specific information is available regarding …
View article: Regulation of splenic contraction persists as a vestigial trait in white‐blooded Antarctic fishes
Regulation of splenic contraction persists as a vestigial trait in white‐blooded Antarctic fishes Open
In fishes, the spleen can function as an important reservoir for red blood cells (RBCs), which, following splenic contraction, may be released into the circulation to increase haematocrit during energy‐demanding activities. This trait is p…
View article: Humane slaughter of African sharptooth catfish (Clarias gariepinus): Effects of various stunning methods on brain function
Humane slaughter of African sharptooth catfish (Clarias gariepinus): Effects of various stunning methods on brain function Open
Common slaughter procedures for African sharptooth catfish (Clarias gariepinus) include asphyxiation, ice chilling and exsanguination, which may all cause substantial suffering over prolonged periods of time before death. Therefore, compre…
View article: Improving the Stability of Red Blood Cells in Rainbow Trout (Oncorhynchus mykiss) and Herring (Clupea harengus): Potential Solutions for Post-mortem Fish Handling to Minimize Lipid Oxidation
Improving the Stability of Red Blood Cells in Rainbow Trout (Oncorhynchus mykiss) and Herring (Clupea harengus): Potential Solutions for Post-mortem Fish Handling to Minimize Lipid Oxidation Open
This study aimed at limiting hemolysis of fish red blood cells (RBCs) as a strategy to limit hemoglobin (Hb)-induced lipid oxidation during post-mortem handling and processing. Effects of varying temperature, salinity, and mechanical impac…
View article: Response to ‘The spleen as an unlikely source of red blood cells during increased activity in fishes’
Response to ‘The spleen as an unlikely source of red blood cells during increased activity in fishes’ Open
We read with interest the paper by Brijs et al. (2020) regarding the 'blood-boosting' properties apparently exhibited by the Antarctic notothenioid fish (Pagothenia borchgrevinki).Although the data provide additional insights into the phys…
View article: Prevalence and severity of cardiac abnormalities and arteriosclerosis in farmed rainbow trout (Oncorhynchus mykiss)
Prevalence and severity of cardiac abnormalities and arteriosclerosis in farmed rainbow trout (Oncorhynchus mykiss) Open
Cardiovascular disease may pose a major threat to the health and welfare of farmed fish. By investigating a range of established cardiovascular disease indicators, we aimed to determine the prevalence, severity and consequences of this aff…
View article: Remote physiological monitoring provides unique insights on the cardiovascular performance and stress responses of freely swimming rainbow trout in aquaculture
Remote physiological monitoring provides unique insights on the cardiovascular performance and stress responses of freely swimming rainbow trout in aquaculture Open
Investigating the mechanisms that fish employ to maintain homeostasis in their everyday life requires measurements of physiological and behavioural responses in the field. With multivariate bio-loggers, we continuously measured gastrointes…
View article: Design considerations for virtual laboratories: A comparative study of two virtual laboratories for learning about gas solubility and colour appearance
Design considerations for virtual laboratories: A comparative study of two virtual laboratories for learning about gas solubility and colour appearance Open
Building a virtual laboratory for teaching and learning is a highly complex process, incorporating diverse areas such as interaction design, visualisation, and pedagogy. This article focuses on the production and implementation issues that…
View article: Extreme blood boosting capacity of an Antarctic fish represents an adaptation to life in a sub-zero environment
Extreme blood boosting capacity of an Antarctic fish represents an adaptation to life in a sub-zero environment Open
Blood doping, the practice of boosting the oxygen carrying capacity of blood, is an illegal strategy used by human athletes to enhance aerobic capacity and athletic performance. Interestingly, the practice of boosting blood oxygen carrying…
View article: Maximum cardiac performance of Antarctic fishes that lack haemoglobin and myoglobin: exploring the effect of warming on nature’s natural knockouts
Maximum cardiac performance of Antarctic fishes that lack haemoglobin and myoglobin: exploring the effect of warming on nature’s natural knockouts Open
Antarctic notothenioids, some of which lack myoglobin (Mb) and/or haemoglobin (Hb), are considered extremely stenothermal, which raises conservation concerns since Polar regions are warming at unprecedented rates. Without reliable estimate…
View article: Hemodynamic responses to warming in euryhaline rainbow trout -implications of the osmo-respiratory compromise
Hemodynamic responses to warming in euryhaline rainbow trout -implications of the osmo-respiratory compromise Open
In seawater, rainbow trout (Oncorhynchus mykiss) drink and absorb water through the gastrointestinal tract to compensate for water passively lost to the hyperosmotic environment. Concomitantly, they exhibit elevated cardiac output and a do…
View article: Contraction of atrial smooth muscle reduces cardiac output in perfused turtle hearts
Contraction of atrial smooth muscle reduces cardiac output in perfused turtle hearts Open
Unusual undulations in resting tension (tonus waves) were described in isolated atria from freshwater turtle more than a century ago. These tonus waves were soon after married with the histological demonstration of a rich layer of smooth m…