FN Archimer Export Format
PT J
TI Microplastics Affect Energy Balance and Gametogenesis in the Pearl Oyster     Pinctada margaritifera
BT 
AF GARDON, Tony
   REISSER, Celine
   SOYEZ, Claude
   QUILLIEN, Virgile
   LE MOULLAC, Gilles
AS 1:1;2:1;3:1;4:1;5:1;
FF 1:PDG-RBE-RMPF;2:PDG-RBE-RMPF;3:PDG-RBE-RMPF;4:PDG-RBE-RMPF;5:PDG-RBE-RMPF;
C1 IFREMER, UMR Ecosyst Insulaires Oceaniens EIO, UMR UPF ILM IRD Ifremer 241, Ctr Pacifique, BP 49, F-98719 Taravao, French Polynesi, France.
C2 IFREMER, FRANCE
SI TAHITI
SE PDG-RBE-RMPF
UM EIO
IN WOS Ifremer jusqu'en 2018
IF 7.149
TC 140
UR https://archimer.ifremer.fr/doc/00435/54684/56104.pdf
LA English
DT Article
AB Plastic pollution in the environment is increasing at global scale. Microplastics (MP) are derived from degradation of larger plastic items or directly produced in microparticles form (<5 mm). Plastics, widely used in structures and equipments of pearl farming, are a source of pollution to the detriment of the lagoon ecosystem. In order to evaluate the impact of MP on the physiology of Pinctada margaritifera, a species of ecological and commercial interests, adult oysters were exposed to polystyrene microbeads (micro-PS of 6 and 10 μm) for 2 months. Three concentrations were tested: 0.25, 2.5, 25 μg L-1 and a control. Ingestion and respiration rate and assimilation efficiency were monitored on a metabolic measurement system to determine the individual energy balance (Scope For Growth, SFG). Effects on reproduction were also assessed. The assimilation efficiency decreased significantly according to micro-PS concentration. The SFG was significantly impacted by a dose-dependent decrease from 0.25 μg L-1 (p < 0.0001). A negative SFG was measured in oysters exposed to 25 μg L-1. Gonads may have provided the missing energy to maintain animals’ metabolism through the production of metabolites derived from germ cells phagocytosis. This study shows that micro-PS significantly impact the assimilation efficiency and more broadly the energy balance of P. margaritifera, with negative repercussions on reproduction. 
PY 2018
PD MAY
SO Environmental Science & Technology
SN 0013-936X
PU Amer Chemical Soc
VL 52
IS 9
UT 000431466500027
BP 5277
EP 5286
DI 10.1021/acs.est.8b00168
ID 54684
ER

EF