Author's accepted version (post-print).This is the peer reviewed version of the following article: Cordero, H., Brinchmann, M.F., Cuesta, A., Meseguer, J. & Esteban, M.A. (2015). Skin mucus proteome map of European sea bass (Dicentrarchus labrax). Proteomics, 15(23-24), 4007-4020, which has been published in final form at http://dx.doi.org/10.1002/pmic.201500120. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-820227.html).