...), followed by a moderate sublethal desiccation exposure (50% of LD 50 ), influences honey bee heat tolerance . We found that neither the critical thermal maximum (CT max ) nor the time to heat stupor was significantly impacted by sublethal desiccation exposure in either species. Similarly, starvation...

...Julie J. H. Nati; Peter Malorey; Anthony K. Gamperl ABSTRACT To assess the relationship among various measures of thermal tolerance and performance suggested for use in fish, we determined the critical thermal maximum (CT max ), critical swimming speed ( U crit ), maximum thermal tolerance while...

... normoxia and hyperoxia (150% air saturation), until their critical thermal maximum (CT max ). The CT max of both groups was ∼39°C, and no differences in maximum cardiac function were recorded as the fish were warmed. However, temperature-induced factorial aerobic scope was significantly greater in fish...

... years determining the critical thermal maximum (CT max ; see Glossary) of many Amazonian fishes ( Table 1 ), we conclude that these species have reached their thermal tipping point (see Glossary). Fig. 1. The historic drought in the Amazon in 2023. (A) The drought in Lake Manaquiri. (B) A dead...

... the critical thermal maximum (CT max ), the body temperature of activity ( T b ), the preferred temperature ( T pref ) and the effectiveness of thermoregulation ( E ). Despite differences in body size, tadpoles from warmer environments consistently demonstrated higher locomotor performance, with minimal...

...Ian A. Bouyoucos; Alyssa M. Weinrauch; Ken M. Jeffries; W. Gary Anderson ABSTRACT Thermal tolerance and associated mechanisms are often tested via the critical thermal maximum (CT max ). The agitation temperature is a recently described thermal limit in fishes that has received little mechanistic...

...Julie J. H. Nati; Felipe R. Blasco; Charles Rodde; Alain Vergnet; François Allal; Marc Vandeputte; David J. McKenzie ABSTRACT Eight juvenile European seabass were exposed to two thermal ramping protocols with different levels of aerobic activity and tolerance endpoint: the critical thermal maximum...

... then assessed using a combination of in vivo , in vitro and biochemical approaches. Critical thermal maximum was higher in TD brook char despite significant reductions in maximum heart rate. In vivo , TD brook char exhibited a lower resting heart rate, blunted hypoxic bradycardia and a severe reduction in time...

... temperature (or temperature zone) that defines the transition between the permissive and stressful temperature range. T c is the temperature where homeostatic capacity rate and disruption rate are equal. Critical thermal maximum (CT max ) Temperature at which locomotor function is lost during gradual...

.... Critical thermal maximum CT max Metabolism Scope for activity Temperature tolerance Global warming is accelerating at an alarming rate, causing progressive elevations of seasonal temperatures and also wider thermal variation, with increased frequency of extreme heatwaves ( Frölicher et al...

... temperature tolerance (critical thermal maximum, CT max ), as well as temperature preference ( T pref ) and avoidance ( T avoid ) of the round goby ( Neogobius melanostomus ), one of the most impactful invasive species in the world. We show that round goby maintained a high aerobic scope from 15 to 28°C...

... melanopterus ) neonates. Both tolerance traits change with thermal acclimation, but aerobic scope and growth rates do not. Aerobic scope Critical thermal maximum Growth Haemoglobin–oxygen affinity Temperature dependence Thermal preference Temperature is a powerful controlling factor...

.../ Summary: Maximum and basal metabolic rate and their oxygen, temperature and size dependencies are mechanistically and quantifiably linked via the physiological capacity to supply oxygen. Maximum metabolic rate Hypoxia tolerance Critical thermal maximum Oxygen supply capacity Metabolic theory...

...: Developmental temperatures affect thermal limit plasticity in adults of a marine ectotherm, and changes in these limits are paralleled by differences in ATP synthesis rate and heat shock protein expression. Phenotypic plasticity Critical thermal maximum Development Heat shock protein ATP synthesis...

.../user-licence-1-1/ Summary: Embryos of two lizard species differ in thermal tolerance in ways that correspond with species-specific nest microhabitats and patterns of occupancy throughout the urban matrix. Anolis Critical thermal maximum Early-life stage Global change Oxygen-limited...

... water. With heat waves on the rise in many aquatic systems, thermal challenges are likely to become an increasingly important selection force for fishes. Climate change Fish Global warming Oxygen- and capacity-limited thermal tolerance OCLTT Critical thermal maximum CT max Loss...

... and acclimation influence estimates of critical temperatures. Critical maximum and minimum temperatures Critical thermal maximum Heat stress Statistical model The upper and lower thermal limits of organisms are important determinants of their ecology, distribution and evolution ( Angilletta, 2009...

... acclimation. Freshwater (FW)-acclimated brook trout at 18°C ( T acc ) were exposed to SW for 16 days, whilst maintaining a FW control. Fish were examined for critical thermal maximum (CT max ) 0 (before), 2, 5 and 16 days after SW exposure, and sampled at T acc and CT max for analysis of plasma cortisol...

...: Despite a widespread perception that end-of-century ocean acidification will reduce the thermal limits of fishes, we show that critical thermal maxima of coral reef damselfishes are robust to this stressor. Carbon dioxide, CO 2 Critical thermal maximum CT max Great Barrier Reef Climate change...

... maxima in marine fishes under hypoxia. Aerobic scope Critical oxygen tension P crit Critical thermal maximum CT max Hypoxia Oxygen limit for thermal tolerance P CT max Temperature Marine ectotherms largely occupy the extent of latitudes tolerable within their thermal limits...