@article{fdi:010079518, title = {{B}iogeography of micronekton assemblages in the natural park of the {C}oral {S}ea}, author = {{R}eceveur, {A}. and {V}ourey, {E}. and {L}ebourges {D}haussy, {A}nne and {M}enk{\`e}s, {C}hristophe and {M}{\'e}nard, {F}r{\'e}d{\'e}ric and {A}llain, {V}.}, editor = {}, language = {{ENG}}, abstract = {{M}esopelagic resources are central to the ecosystem but remain poorly studied mainly due to the lack of observations. {T}his paper investigates the assemblages of micronekton organisms and their habitat in the {N}atural {P}ark of the {C}oral {S}ea around {N}ew {C}aledonia (southwest {P}acific) using data from 141 pelagic trawls. {A} total of 67,130 micronekton individuals (fish, crustaceans, and mollusks) were collected with 252 species identified among 152 genus and 76 families. {I}n the analyses, we focused on 22 species; each were present in more than 33 trawls (i.e., in more than 25% of the total number of trawls) and studied their spatial distribution and vertical dynamic behavior. {C}ommunity structure was investigated through region of common profile ({RCP}), an innovative statistical multivariate method allowing the study of both species assemblages and environmental conditions' influence on species occurrence probability. {N}ine major assemblages were identified, mainly driven by time of the day and sampling depth. {E}nvironmental variables, such as mean oxygen concentration, mean temperature, and bathymetry, also influenced micronekton assemblages, inducing a north/south distribution pattern. {T}hree major day-assemblages were identified, distributed over the whole {EEZ} but segregated by depth: one assemblage in waters shallower than 200 m and the other two in deeper waters, respectively, in the north and the south. {T}he night-assemblages were mostly segregated by depth with two community changes at approximately 80 and 200 m and spatially with a north-south gradient. {T}he predominant northern night assemblages were dominated by crustacean, whereas the southern assemblage mostly by cephalopods and fish species. {G}enerally, the southwest part of the {EEZ} was the most diverse part. {S}tatistical analyses allowed the prediction of the spatial distribution of each species, and its vertical migration behavior was determined. {B}ased on results, three important areas were identified to be considered for special management measures as part of the {N}atural {P}ark of the {C}oral {S}ea.}, keywords = {diversity ; {S}outhwest {P}acific {O}cean ; mesopelagic zone ; region of common ; profile ; diel vertical migration ; pelagic trawl ; {PACIFIQUE} ; ; {MER} {DE} {CORAIL} {PARC} {NATUREL}}, booktitle = {}, journal = {{F}rontiers in {M}arine {S}cience}, volume = {7}, numero = {}, pages = {449 [20 ]}, year = {2020}, DOI = {10.3389/fmars.2020.00449}, URL = {https://www.documentation.ird.fr/hor/fdi:010079518}, }