FN Archimer Export Format
PT J
TI Deep-sea benthic communities in the largest oceanic desert are structured by the presence of polymetallic crust
BT 
AF Delavenne, Juliette
   Keszler, Louise
   Castelin, Magalie
   Lozouet, Pierre
   Maestrati, Philippe
   Samadi, Sarah
AS 1:1,2,3;2:1;3:1;4:4;5:1,4;6:1;
FF 1:;2:;3:;4:;5:;6:;
C1 Institut Systématique Evolution Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, CP 26, 57 rue Cuvier, 75005, Paris, France
   Unité Biologie des Organismes et Écosystèmes Aquatiques (BOREA UMR 7208), Sorbonne Université, MNHN, Université de Caen Normandie, Université des Antilles, CNRS, IRD, CP26, 57 Rue Cuvier, 75005, Paris, France
   Centre d’Ecologie et des Sciences de la Conservation (CESCO UMR7204), Sorbonne Universités, MNHN, CNRS, UPMC, CP51, 57 rue Cuvier, 75005, Paris, France
   Direction des Collections, Muséum national d’Histoire Naturelle, CP51, 57 rue Cuvier, 75005, Paris, France
C2 MNHN, FRANCE
   MNHN, FRANCE
   MNHN, FRANCE
   MNHN, FRANCE
IN DOAJ
IF 3.998
TC 8
UR https://archimer.ifremer.fr/doc/00494/60530/63993.pdf
   https://archimer.ifremer.fr/doc/00494/60530/63994.xlsx
LA English
DT Article
CR BENTHAUS
   MUSORSTOM 9
   TARASOC
BO Alis
AB Based on the specimens collected during three deep-sea cruises, and deposited at the Muséum National d’Histoire Naturelle (MNHN) in Paris, we analysed the diversity of benthic communities within the EEZ of French Polynesia. The literature and the MNHN database allowed us to inventory 471 species of invertebrates, among which 169 were newly described. We mainly found data for Mollusca, Crustacea, Brachiopoda and Crinoidea. We also found samples from other taxa, which still remain unidentified within the collections of the MNHN. Although this inventory is incomplete, we demonstrate that the deep waters of French Polynesia host unique benthic communities and endemic species. Using diversity and multivariate analyses, we show that the deep-sea benthic communities are structured by depth, habitats, geography and also by the presence of polymetallic crust. Furthermore, by focusing on the molluscs of the central area of French Polynesia, we show that the spectrum of shell size differs among deep-sea habitats. Specifically, shells tend to be smaller on encrusted seamounts than on island slopes. Together with the size range of organisms, low abundance, rarity and endemism designate these habitats as sensitive. These results should thus be taken into account in the evaluation of the expected impact of mining activities on biological communities. 
PY 2019
PD MAY
SO Scientific Reports
SN 2045-2322
PU Springer Science and Business Media LLC
VL 9
IS 1
UT 000466880100002
DI 10.1038/s41598-019-43325-0
ID 60530
ER

EF