1 Introduction Extreme heat events have increased in frequency, duration, and magnitude in recent decades and this trend is expected to continue under future climate scenarios (Perkins et al., 2012; Perkins-Kirkpatrick and Gibson, 2017). Organisms can be severely impacted by such heat waves, as evidenced by concomitant mass mortality events both in terrestrial and aquatic ecosystems (e.g., Welbergen et al., 2008; Garrabou et al., 2009; Ruthrof et al., 2018; Piatt et al., 2020; Westley, 2020).
