HSP70 production patterns in coastal and estuarine organisms facing increasing temperatures

► Organisms within each community showed diverse HSP70 expression responses. ► Patterns of response occurred independently of taxa, CTMax and habitat type. ► Magnitude of HSP70 expression seems to be related to the habitat's thermal conditions. ► No clear pattern was observed for congeneric species. ► HSP70 expression showed high intraspecific variability.