“…A significant barrier to diagnosing SBS using this method is a lack of reliable ecological evidence of historical conditions or consistent long-term empirical data documenting change over multiple generations for many biological systems (Bonebrake, Christensen, Boggs, & Ehrlich, 2010;Campbell, Gray, Hazen, & Shackeroff, 2009;Guerrero-Gatica et al, 2019;Pinnegar & Engelhard, 2008). A recent meta-analysis by Guerrero-Gatica et al (2019) noted that while many studies suggest the existence of SBS, many do not provide adequate empirical evidence of SBS to be conclusive, often because this was not the primary objective of the study (e.g. Ainsworth, Pitcher, & Rotinsulu, 2008;Kai et al, 2014;Lozano-Montes et al, 2008;Thurstan, Buckley, Ortiz, & Pandolfi, 2016).…”