Temperature Tolerances of North American Freshwater Fishes Exposed to Dynamic Changes in Temperature

Beitinger, Thomas L.; Bennett, Wayne A.; McCauley, Robert W.

doi:10.1023/a:1007676325825

Cited by 745 publications

(291 citation statements)

References 155 publications

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“…The present study confirmed the hypothesis raised by others (Beitinger et al, 2000;Somero, 2005) that thermal history influences thermal tolerance in adult fish. To our knowledge, only one other study has investigated the effects of thermal history on the thermal tolerance of adult fish and it involved exposing zebrafish to high water temperatures (Schaefer and Ryan, 2006), but did not assess how the challenge modified physiological and endocrine systems.…”

Section: Thermal Challenge As a Stressorsupporting

confidence: 93%

Thermal imprinting modifies bone homeostasis in cold challenged sea bream (Sparus aurata, L.)

Mateus

Costa

Gisbert

et al. 2017

Journal of Experimental Biology

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Fish are ectotherms and temperature plays a determinant role in their physiology, biology and ecology, and is a driver of seasonal responses. The present study assessed how thermal imprinting during embryonic and larval stages modified the response of adult fish to low water temperature. We targeted the gilthead sea bream, which develops a condition known as winter syndrome when it is exposed to low water temperatures. Eggs and larvae of sea bream were exposed to four different thermal regimes and then the response of the resulting adults to a low temperature challenge was assessed. Sea bream exposed to a high-low thermal regime as eggs and larvae (HLT; 22°C until hatch and then 18°C until larvae-juvenile transition) had increased plasma cortisol and lower sodium and potassium in response to a cold challenge compared with the other thermal history groups. Plasma glucose and osmolality were increased in coldchallenged HLT fish relative to the unchallenged HLT fish. Cold challenge modified bone homeostasis/responsiveness in the lowhigh thermal regime group (LHT) relative to other groups, and ocn, ogn1/2, igf1, gr and trα/β transcripts were all downregulated. In the low temperature group (LT) and HLT group challenged with a low temperature, alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) activities were decreased relative to unchallenged groups, and bone calcium content also decreased in the LT group. Overall, the results indicate that thermal imprinting during early development of sea bream causes a change in the physiological response of adults to a cold challenge.

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Section: Thermal Challenge As a Stressorsupporting

confidence: 93%

Thermal imprinting modifies bone homeostasis in cold challenged sea bream (Sparus aurata, L.)

Mateus

Costa

Gisbert

et al. 2017

Journal of Experimental Biology

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“…In some cases, values were not reported so mean thermal tolerances were estimated from figures (sensu [35]). Negative ARRs values (i.e.…”

Section: Methodsmentioning

confidence: 99%

Plasticity in thermal tolerance has limited potential to buffer ectotherms from global warming

2015

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Global warming is increasing the overheating risk for many organisms, though the potential for plasticity in thermal tolerance to mitigate this risk is largely unknown. In part, this shortcoming stems from a lack of knowledge about global and taxonomic patterns of variation in tolerance plasticity. To address this critical issue, we test leading hypotheses for broad-scale variation in ectotherm tolerance plasticity using a dataset that includes vertebrate and invertebrate taxa from terrestrial, freshwater and marine habitats. Contrary to expectation, plasticity in heat tolerance was unrelated to latitude or thermal seasonality. However, plasticity in cold tolerance is associated with thermal seasonality in some habitat types. In addition, aquatic taxa have approximately twice the plasticity of terrestrial taxa. Based on the observed patterns of variation in tolerance plasticity, we propose that limited potential for behavioural plasticity (i.e. behavioural thermoregulation) favours the evolution of greater plasticity in physiological traits, consistent with the 'Bogert effect'. Finally, we find that all ectotherms have relatively low acclimation in thermal tolerance and demonstrate that overheating risk will be minimally reduced by acclimation in even the most plastic groups. Our analysis indicates that behavioural and evolutionary mechanisms will be critical in allowing ectotherms to buffer themselves from extreme temperatures.

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“…Fish acclimated to a particular temperature were subjected to a constant rate of increase or decrease at the rate of 0.3°C min -1 until loss of equilibrium (LOE) was reached, which were designated as the critical thermal maxima (CT Max ) and critical thermal minima (CT Min ), respectively (Beitinger et al 2000;Paladino et al 1980). This technique has been critically evaluated by numerous workers Das et al 2004Das et al , 2005Debnath et al 2006;Reynolds and Casterlin 1979) and is well established as a powerful tool for studying the physiology of stress and adaptation in fish (Beitinger and McCauley 1990;Paladino et al 1980).…”

Section: Thermal Tolerance Experimentsmentioning

confidence: 99%

“…Therefore, fisheries researchers have been making continuous attempts to define the thermal tolerance of various species of aquaculture importance. The United States National Council proposed that the global mean air temperature may increase by about 1.5-4.5°C in the next half century (Beitinger et al 2000). Rising temperature to certain extent is beneficial to the aquaculture production, as it can increase the growth rate of fish and, thereby, reduce the culture period to produce marketable size fish.…”

Section: Introductionmentioning

confidence: 99%

Acclimation of Anabas testudineus (Bloch) to three test temperatures influences thermal tolerance and oxygen consumption

Sarma

Pal

Ayyappan

et al. 2008

Fish Physiol Biochem

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Teleost fish have developed their own specific adaptive mechanism, both behavioral and physiological, to maintain homeostasis in response to unfavorable temperatures. Therefore, this study was aimed at assessing the critical thermal maxima (CT(Max)), critical thermal minima (CT(Min)), and oxygen consumption rate of Anabas testudineus (17.03 +/- 1.2 g) after acclimating to three preset temperatures (25, 30, and 35 degrees C) for 30 days. The CT(Max) and CT(Min) were 40.15, 41.40, 41.88 degrees C and 12.43, 13.06, 13.94 degrees C, respectively, and were significantly different (P < 0.05). The thermal tolerance polygon for the specified temperatures was 278.30 degrees C(2). The oxygen consumption rate (117.03, 125.70, 198.48 mg O(2) kg(-1) h(-1), respectively) increased significantly (P < 0.05) with increasing acclimation temperatures. The overall results indicate that the thermal tolerance and oxygen consumption of A. testudineus are dependent on acclimation.

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Temperature Tolerances of North American Freshwater Fishes Exposed to Dynamic Changes in Temperature

Cited by 745 publications

References 155 publications

Thermal imprinting modifies bone homeostasis in cold challenged sea bream (Sparus aurata, L.)

Thermal imprinting modifies bone homeostasis in cold challenged sea bream (Sparus aurata, L.)

Plasticity in thermal tolerance has limited potential to buffer ectotherms from global warming

Acclimation of Anabas testudineus (Bloch) to three test temperatures influences thermal tolerance and oxygen consumption

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