Upper temperature tolerances of some European molluscs

Ansell, A. D.; Barnett, P. R. O.; Bodoy, Alain; Massé, Henri

doi:10.1007/bf00397083

Cited by 44 publications

(14 citation statements)

References 15 publications

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“…This is probably because physiological tolerance, when assessed using metrics such as activity, decline with temperature above and below an optimum in a similar fashion to CT max (e.g. Ansell et al, 1981;Peck et al, 2004), and there is a hierarchy of temperature tolerance with physiological scale where whole-animal CT max is lower than limits for tissues and then cellular level processes, and the different levels appear to be linked in a cascade (Pörtner et al, 2007). Thus, for populations living at sites where temperatures are either above or below optimum, the capacity to perform the required normal functions and activities declines.…”

Section: Ct Max and Estimations Of Long-term Thermal Tolerancementioning

confidence: 99%

Acclimation and thermal tolerance in Antarctic marine ectotherms

Peck

Morley

Richard

et al. 2014

Journal of Experimental Biology

200

126

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Antarctic marine species have evolved in one of the coldest and most temperature-stable marine environments on Earth. They have long been classified as being stenothermal, or having a poor capacity to resist warming. Here we show that their ability to acclimate their physiology to elevated temperatures is poor compared with species from temperate latitudes, and similar to those from the tropics. Those species that have been demonstrated to acclimate take a very long time to do so, with Antarctic fish requiring up to 21-36 days to acclimate, which is 2-4 times as long as temperate species, and invertebrates requiring between 2 and 5 months to complete wholeanimal acclimation. Investigations of upper thermal tolerance (CT max ) in Antarctic marine species have shown that as the rate of warming is reduced in experiments, CT max declines markedly, ranging from 8 to 17.5°C across 13 species at a rate of warming of 1°C day, and from 1 to 6°C at a rate of 1°C month −1 . This effect of the rate of warming on CT max also appears to be present at all latitudes. A macrophysiological analysis of long-term CT max across latitudes for marine benthic groups showed that both Antarctic and tropical species were less resistant to elevated temperatures in experiments and thus had lower warming allowances (measured as the difference between long-term CT max and experienced environmental temperature), or warming resistance, than temperate species. This makes them more at risk from warming than species from intermediate latitudes. This suggests that the variability of environmental temperature may be a major factor in dictating an organism's responses to environmental change.

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Section: Ct Max and Estimations Of Long-term Thermal Tolerancementioning

confidence: 99%

Acclimation and thermal tolerance in Antarctic marine ectotherms

Peck

Morley

Richard

et al. 2014

Journal of Experimental Biology

200

126

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“…Another potential glacial refugial zone might have been the Celtic Sea southwest of the British ice sheet (Ménot et al 2006). C. edule performs best in non-stagnant water between 10 and 20°C but survives a wide range of 0-43°C (e.g., Ansell et al 1981;Wilson 1981;Strasser et al 2001;Genelt-Yanovskiy et al 2010). Therefore, temperature alone is unlikely to drive this species to extinction as long as partial populations can survive at greater depth subtidally to avoid extreme temperatures of the intertidal zone (e.g., Eisma 1966;Dörjes et al 1986;Dekker 1989;Bazairi et al 2003;Sousa et al 2006).…”

Section: Sy Symentioning

confidence: 99%

The cockle Cerastoderma edule at Northeast Atlantic shores: genetic signatures of glacial refugia

et al. 2011

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“…Wallis (1975), Ansell and McLachlan (1980) and Rajagopal et al (1995bRajagopal et al ( , 1995c2003) reported similar results for some other bivalves. Kennedy and Mihursky (1971) and 1981) observed a decrease in mortality with increasing age of the bivalves at different temperatures. Rajagopal (1997) reported that size-dependent variation with the thermal tolerance of mussel, B. variabilis is not significant.…”

mentioning

confidence: 93%

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

et al. 2005

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Mussels are the most problematic organisms encountered in the water intake systems of electrical power plants. Various fouling control measures are adopted, among which heat treatment is considered the relatively more attractive from economic and ecological points of view. Thermal tolerance experiments were carried out to determine the effects of mussel size (2-20 mm shell length), season (breeding vs non-breeding), nutritional status (fed vs non-fed), acclimation temperature (5-25 degrees C) and acclimation salinity (1-35%o) on the mortality pattern of three important mussel species, viz. a freshwater mussel Dreissena polymorpha, a brackish water mussel Mytilopsis leucophaeata and a marine mussel Mytilus edulis under different temperatures (36-41 degrees C). The mussels in the 10 mm size group exposed to 36 degrees C showed 100% mortality after 38 min (D. polymorpha), 84 min (M. edulis) and 213 min (M. leucophaeata). The effect of mussel size on M. edulis and M. leucophaeata mortality at different temperatures was significant, with the largest size group of mussels showing greater resistance, while no significant size-dependence was observed in the case of D. polymorpha. All the three mussel species collected during the non-breeding season (June-October). Nutritional status had no significant influence on the thermal tolerance of the three mussels; fed and non-fed mussels showed 100% mortality at comparable rates. Acclimation temperature had a significant effect on the mortality of all three species. Survival time at any given target temperature increased with increasing acclimation temperature. The acclimation salinity showed no significant effect on the thermal tolerance of the three mussel species. In comparison, M. leucophaeata was more tolerant to high temperature stress than the other two species. The present studies clearly show that various factors can influence the mortality of D. polymorpha, M. edulis and M. leucophaeata to elevated temperatures. The results, therefore, suggest that if heat treatment were to be used as a control measure for these mussels, it has to be employed judiciously, depending on the mussel species, mussel size, breeding season, water temperature and salinity.

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Upper temperature tolerances of some European molluscs

Cited by 44 publications

References 15 publications

Acclimation and thermal tolerance in Antarctic marine ectotherms

Acclimation and thermal tolerance in Antarctic marine ectotherms

The cockle Cerastoderma edule at Northeast Atlantic shores: genetic signatures of glacial refugia

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

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