Early life stages are usually more vulnerable to disturbance than are later stages(Pechenik 1987, Diederich et al. 2011). In addition, stress experienced in early life may have cascading effects on performance in later life (Pechenik et al. 1998, 2001,Gimenez et al. 2004, Allen & Marshall 2010, Marshall & Morgan 2011). Finally,survival and quality of larvae and new recruits is a critical factor limiting adult population size and persistence (Caley et al. 1996, Pechenik et al. 1998, Crean et al.2011). Therefore it is crucial to take into account early life stages and multiple life stages when evaluating the potential impact of anthropogenic disturbances on coastal organisms.