“…Indeed, temperature may only be a limiting factor indirectly through its causal effect on these other environmental factors (Scott, 1974;Vernberg & Vernberg, 1983). The ways in which organisms experience, and develop resistance to, environmental stress may also be very similar for high temperature, high salinity, low oxygen concentration and water stress (Vernberg & Vernberg, 1972;Theede, 1973;Newell, 1976;Sullivan & Ross, 1979;Fitter & Hay, 1987;Parsons, 1989). Therefore, it is convenient to combine high temperature, high salinity, low oxygen availability, and water stress into a single suite of conditions.…”