Seasonal thermal tolerance in marine Crustacea

Hopkin, Richard, Qari, Suhaila, Bowler, Kenneth, Hyde, David and Cuculescu-Santana, Mirela (2006) Seasonal thermal tolerance in marine Crustacea. Journal of Experimental Marine Biology and Ecology, 331 (1). pp. 74-81. ISSN 0022 0981

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Seasonal values of the critical thermal maximum (CTMax) of eight species of adult marine Crustacea from temperate latitudes were measured and found to range between 20 and 34°C. The extent to which CTMax was dependent on acclimatization varied with species but for most of the species studied, summer-captured animals had significantly higher CTMax values than winter-captured animals. Heat shock resulted in an increase in thermotolerance in most species in winter-captured animals, but a different pattern was found for summer-captured animals. Then, only Cancer pagurus and Pagurus bernhardus showed a positive increment of CTMax on heat shock. Test for Serial Independence analysis indicated no significant phylogenetic autocorrelation between CTMax values in winter or summer-captured animals. Temperature measurements taken by remote data loggers in the intertidal zone of the North-East coast of England are reported. These suggest that several species, whose distribution extends into the intertidal zone, may experience temperatures close to their CTMax in summer.

Item Type: Article
Uncontrolled Keywords: Acclimatization, critical thermal maximum (CTMax), decapod, heat shock
Subjects: C100 Biology
F700 Ocean Sciences
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Becky Skoyles
Date Deposited: 30 Jan 2015 11:55
Last Modified: 12 Oct 2019 17:30

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