FN Archimer Export Format
PT J
TI First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana
BT 
AF Michelet, Claire
   Zeppilli, Daniela
   Hubas, Cédric
   Baldrighi, Elisa
   Cuny, Philippe
   Dirberg, Guillaume
   Militon, Cécile
   Walcker, Romain
   Lamy, Dominique
   Jézéquel, Ronan
   Receveur, Justine
   Gilbert, Franck
   Houssainy, Amonda El
   Dufour, Aurélie
   Heimbürger-Boavida, Lars-Eric
   Bihannic, Isabelle
   Sylvi, Léa
   Vivier, Baptiste
   Michaud, Emma
AS 1:1;2:2;3:3;4:1;5:4;6:5;7:4;8:6;9:5;10:7;11:7;12:6;13:4;14:4;15:4;16:1;17:4;18:5;19:1;
FF 1:;2:PDG-REM-EEP-LEP;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   IFREMER, Centre Brest, REM/EEP/LEP, ZI de la Pointe du Diable, CS10070, F-29280 Plouzané, France
   Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Muséum National D’Histoire Naturelle, CNRS, Sorbonne Université, IRD, UCN, UA, Station Marine de Concarneau, 29900 Concarneau, France
   Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO, 13288 Marseille, France
   Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Muséum National D’Histoire Naturelle, CNRS, Sorbonne Université, IRD, UCN, UA, Rue Buffon, F-75005 Paris, France
   Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3—Paul Sabatier (UPS), 31 326 Toulouse, France
   CEDRE, Rue Alain Colas, F-29218 Brest CEDEX 2, France
C2 UBO, FRANCE
   IFREMER, FRANCE
   MNHN, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   MNHN, FRANCE
   UNIV TOULOUSE, FRANCE
   CEDRE, FRANCE
SI BREST
SE PDG-REM-EEP-LEP
UM LEMAR
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 3.282
TC 6
UR https://archimer.ifremer.fr/doc/00684/79587/82274.pdf
   https://archimer.ifremer.fr/doc/00684/79587/82275.zip
LA English
DT Article
DE ;mangroves;biodiversity;meiofauna;nematode;anthropogenic pressures;natural contamination;South America
AB Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the stations, but they remained below toxicity guidelines. Meiofauna structure (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s identification brought details on the sediment’s quality. The opportunistic genus Paraethmolaimus (Jensen, 1994) strongly correlated to the higher concentrations of Hg, Pb. Anoxic sediments were marked by organic enrichment in pesticides, PCB, and mangrove litter products and dominance of two tolerant genus, Terschellingia (de Man, 1888) and Spirinia (Gerlach, 1963). In each of these two stations, we found many Desmodora individuals (de Man, 1889) with the presence of epibionts highlighting the nematodes decreased fitness and defenses. Oxic sediments without contaminants were distinguished by the sensitive genera Pseudocella (Filipjev, 1927) and a higher diversity of trophic groups. Our results suggested a nematodes sensitivity to low contaminants concentrations. Further investigations at different spatio-temporal scales and levels of deterioration, would be necessary to use of this group as bioindicator of the mangroves’ ecological status. 
PY 2021
PD MAR
SO Forests
SN 1999-4907
PU MDPI AG
VL 12
IS 3
UT 000633666000001
DI 10.3390/f12030338
ID 79587
ER

EF