229 Corrigendum Fishing and environmental influences on estimates of unfished herbivorous fish biomass across the Hawaiian Archipelago Jason Helyer, Jameal F. Samhouri* Mar Ecol Prog Ser 575: 1–15, 2017, https://doi.org/10.3354/meps12235 *Corresponding author: [email protected] • Following publication of the manuscript, David Bellwood pointed out that the functional group assignment for 4 of the 26 species considered were misclassified. Specifically, Chlorurus perspicillatus and Chlorurus sordidus are excavators and Ctenochaetus hawaiiensis and Ctenochaetus strigosus are detritivores or particulate feeders (Bellwood & Choat 1990, Bonaldo et al. 2014, Tebbett et al. 2017). However, in our paper the former 2 species were referred to as scrapers and the latter 2 species as grazers based on information contained within the citations we provided on p. 3−4 of the published manuscript. To acknowledge these misclassifications, Table S1 in Supplement 2 (www.int-res.com/articles/ suppl/m575p001_supp.pdf) has been revised. • In addition, throughout the manuscript readers should consider any reference to ‘scrapers’ to imply ‘scrapers and excavators’ and any reference to ‘grazers’ to imply ‘grazers and detritivores’. • Finally, we note that these corrections — while important in terms of their implications about the ecosystem functions of the herbivorous fishes we studied — do not relate to the main focus of our analysis, which was to estimate depletion from unfished biomass using herbivores as an example group. LITERATURE CITED Bellwood DR, Choat JH (1990) A functional analysis of grazing in parrotfishes (family Scaridae): the ecological implications. Environ Biol Fishes 28:189−214 Bonaldo R, Hoey A, Bellwood D (2014) The ecosystem roles of parrotfishes on tropical reefs. Oceanogr Mar Biol Annu Rev 52:81−132 Tebbett SB, Goatley CHR, Bellwood DR (2017) Clarifying functional roles: algal removal by the surgeonfishes Ctenochaetus striatus and Acanthurus nigrofuscus. Coral Reefs 36:803−813.