Mean (minimum-maximum) of microbiological, hydrochemical, and physical variables and stable nitrogen isotopes of octocorals at sampling sites (10 m of depth) over the 2008–2016 period.

Data of bottom-sediment accumulation (adimensional) were of 2011, and data of stable nitrogen isotopes of octocorals belong to 2016. FC: fecal coliform bacteria, TC: total coliform bacteria, FE: fecal streptococcal bacteria, HB: heterotrophic bacteria, SR: sulfate-reducing bacteria and DIN: dissolved inorganic nitrogen. Codes of sampling sites are presented in Fig 1. These data were published in Rey-Villiers et al. (2020; 2021a), except the hydrodynamic stress index. (XLSX)