Effect of warming rate on the critical thermal maxima of crabs, shrimp and fish

Vinagre, Catarina; Leal, Inês; Mendonça, Vanessa; Flores, Augusto A. V.

doi:10.1016/j.jtherbio.2014.10.012

Cited by 82 publications

(39 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Other ectothermic organisms presented similar responses to heat stress, as described by Vinagre et al (2015), such as the Bathygobius soporator and Parablennius marmoreus fish species; the Palaemon northropi and Hippolyte obliquimanus shrimp; the Eurypanopeus abbreviatus and Menippe nodifrons crabs. These animals were removed from their natural habitat, acclimatized in a controlled environment for 7 days and deprived of food for 24 h prior to the experiments.…”

Section: Discussionsupporting

confidence: 57%

Physiological evaluation of the behavior and epidermis of freshwater planarians (Girardia tigrina and Girardia sp.) exposed to stressors

et al. 2018

View full text Add to dashboard Cite

Planarians are metazoan freshwater flatworms which are free-living organisms. Their body has pluripotent stem cell promoters of tissue regeneration capacity. The water temperature and the potential of hydrogen (pH) of lentic ecosystems are important factors involved in the distribution and abundance of these animals. Although the pH factor is directly related to the physiology and behavior of planarians, their adaptive and regenerating capacities still remain unknown. The Critical Thermal Maximum (CTM) is a very widespread method used in the evaluation of thermal tolerance. In this study, Girardia tigrina (Girard, 1850) and Girardia sp., a species found in Brazil, which is under study as a new species, had their epidermis assessed by scanning electron microscopy (SEM) to analyze their physiological structures before and after exposure to different stressors. SEM was used as a method to evaluate the planarians' epidermis as a result of the increasing temperature (CTM) and pH alterations, the latter with the use of a new methodology defined as Critical Hydrogen ion concentration Maximum (CHM). In increasing temperatures from 20°C to 37°C, both Girardia tigrina and Girardia sp. proved to be adaptable to thermal stress. Girardia sp. was shown to be more resistant to higher temperatures. However, Girardia tigrina was more resistant to extreme pH conditions (4.0 to 10.0). SEM analysis showed morphological differences among planarian species, such as the arrangement of the structures and cell types of the dorsal epidermis. Moreover, planarians demonstrated the ability to change the surrounding pH of their external environment in order to maintain the function of their physiological mechanisms, suggesting that these animals have a complex survival system, possibly related to protonephridia, flame cells and excretory pores..

show abstract

Section: Discussionsupporting

confidence: 57%

Physiological evaluation of the behavior and epidermis of freshwater planarians (Girardia tigrina and Girardia sp.) exposed to stressors

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Both observations are consistent with previous work investigating the effects of slow rates of temperature change on survival of ectotherms (Kingsolver & Buckley, ; Rezende et al, ). We suggest that the type of thermal change, which will depend on both a population's environment and the severity of climate events (Rezende et al, ; Vinagre, Leal, Mendonça, & Flores, ), will define the risk of extinction for populations that face both pathogens and thermal stress, with the impact of infection greatest under more acute thermal conditions.…”

Section: Discussionmentioning

confidence: 99%

Pathogen exposure disrupts an organism's ability to cope with thermal stress

Hector

Sgrò

Hall

2019

Global Change Biology

View full text Add to dashboard Cite

As a result of global climate change, species are experiencing an escalation in the severity and regularity of extreme thermal events. With patterns of disease distribution and transmission predicted to undergo considerable shifts in the coming years, the interplay between temperature and pathogen exposure will likely determine the capacity of a population to persist under the dual threat of global change and infectious disease. In this study, we investigated how exposure to a pathogen affects an individual's ability to cope with extreme temperatures. Using experimental infections of Daphnia magna with its obligate bacterial pathogen Pasteuria ramosa, we measured upper thermal limits of multiple host and pathogen genotype combinations across the dynamic process of infection and under various forms (static and ramping) of thermal stress. We find that pathogens substantially limit the thermal tolerance of their host, with the reduction in upper thermal limits on par with the breadth of variation seen across similar species entire geographical ranges. The precise magnitude of any reduction, however, was specific to the host and pathogen genotype combination. In addition, as thermal ramping rate slowed, upper thermal limits of both healthy and infected individuals were reduced. Our results suggest that the capacity of a population to evolve new thermal limits, when also faced with the threat of infection, will depend not only on a host's genetic variability in warmer environments, but also on the frequency of host and pathogen genotypes. We suggest that pathogen‐induced alterations of host thermal performance should be taken into account when assessing the resilience of any population and its potential for adaptation to global change.

show abstract

“…Yet, rather than the temperature when a fish rolls over because it has no righting reflex, the more conservative index for a fishery manager should be the temperature when a fish must remain immobile with zero AAS. Nevertheless, the data on T Cmax and incipient lethal temperatures continue to build for fish species and to be highly cited (Vinagre et al ., ). Even though T Cmax will continue to be used for species comparisons, T Cmax measurements also have their difficulties.…”

Section: The Fry Aerobic‐scope Curvementioning

confidence: 97%

Pragmatic perspective on aerobic scope: peaking, plummeting, pejus and apportioning

Farrell

2015

Journal of Fish Biology

170

147

View full text Add to dashboard Cite

A major challenge for fish biologists in the 21st century is to predict the biotic effects of global climate change. With marked changes in biogeographic distribution already in evidence for a variety of aquatic animals, mechanistic explanations for these shifts are being sought, ones that then can be used as a foundation for predictive models of future climatic scenarios. One mechanistic explanation for the thermal performance of fishes that has gained some traction is the oxygen and capacity-limited thermal tolerance (OCLTT) hypothesis, which suggests that an aquatic organism's capacity to supply oxygen to tissues becomes limited when body temperature reaches extremes. Central to this hypothesis is an optimum temperature for absolute aerobic scope (AAS, loosely defined as the capacity to deliver oxygen to tissues beyond a basic need). On either side of this peak for AAS are pejus temperatures that define when AAS falls off and thereby reduces an animal's absolute capacity for activity. This article provides a brief perspective on the potential uses and limitations of some of the key physiological indicators related to aerobic scope in fishes. The intent is that practitioners who attempt predictive ecological applications can better recognize limitations and make better use of the OCLTT hypothesis and its underlying physiology.

show abstract

Effect of warming rate on the critical thermal maxima of crabs, shrimp and fish

Cited by 82 publications

References 45 publications

Physiological evaluation of the behavior and epidermis of freshwater planarians (Girardia tigrina and Girardia sp.) exposed to stressors

Physiological evaluation of the behavior and epidermis of freshwater planarians (Girardia tigrina and Girardia sp.) exposed to stressors

Pathogen exposure disrupts an organism's ability to cope with thermal stress

Pragmatic perspective on aerobic scope: peaking, plummeting, pejus and apportioning

Contact Info

Product

Resources

About