@article{fdi:010081057,
  title = {{E}nvironmental drivers of mesophotic echinoderm assemblages of the {S}outheastern {P}acific {O}cean},
  author = {{M}echo, {A}. and {D}ewitte, {B}oris and {S}ellanes, {J}. and van {G}ennip, {S}. and {E}aston, {E}. {E}. and {G}usmao, {J}. {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}esophotic ecosystems (50-400 m depth) of the southeastern {P}acific have rarely been studied because of the logistical challenges in sampling across this remote zone. {T}his study assessed how oxygen concentrations and other environmental predictors explain variation in echinoderm assemblages at these mesophotic systems, where this group is among the predominant fauna. {W}e compiled data on echinoderm taxa at 91 sampling stations, from historical and recent surveys (between 1950 and 2019), covering a longitudinal gradient of approximately 3,700 km along with the {N}azca, {S}alas y {G}omez, and {J}uan {F}ernandez ridges. {U}ni- and multivariate model-based tools were applied to analyze the patterns of benthic fauna in relation to environmental factors. {O}ur results indicate a significant positive relationship between echinoderm species richness and depth, oxygen, and salinity. {C}hanges in echinoderm community composition were significantly explained by oxygen, longitude, and chlorophyll-a. {W}e observed notable species turnovers at similar to 101 and similar to 86 degrees {W}, where assemblages tend to be more variable across stations. {T}his turnover possibly reflects the effects of physical barriers to dispersion (e.g., currents) and habitat changes. {E}chinoderm assemblages observed around {E}aster and {D}esventuradas {I}slands presented a high occurrence of potentially endemic taxa and distinct species assemblages. {T}his study is the first to assess the structure of mesophotic echinoderm assemblages of the southeastern {P}acific {O}cean along a large spatial scale. {T}he information reported here could help design appropriate management tools for the vast, recently created, marine protected areas in the southeastern {P}acific.},
  keywords = {species turnover ; seamounts ; oceanic islands ; conservation ; essential ; marine habitats ; {N}azca and {S}alas y {G}omez {R}idges ; {OMZ} ; {PACIFIQUE} {SUD} {EST} ; {CHILI} ; {DESVENTURADAS} {ILES} {PAQUES} {ILE} ; {SALAS} {Y} {G}Ó{MEZ} {ILE}, {NAZCA} ; {JUAN} {FERNANDEZ} {ARCHIPEL}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {8},
  numero = {},
  pages = {574780 [15p.]},
  year = {2021},
  DOI = {10.3389/fmars.2021.574780},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081057},
}