FN Archimer Export Format
PT J
TI Bioindicator Species of Plastic Toxicity in Tropical Environments
BT 
AF Goulais, Maeva
   SAULNIER, Denis
   Rouxel, Julien
   Galgani, Francois
AS 1:1;2:1;3:1;4:1;
FF 1:PDG-RBE-RMPF;2:PDG-RBE-RMPF;3:PDG-RBE-RMPF;4:PDG-RBE-RMPF;
C1 Ifremer, Université de la Polynésie Française, ILM, IRD, UMR 241 SECOPOL, F-98719 , Tahiti, French Polynesia, France
C2 IFREMER, FRANCE
SI BREST
   TAHITI
SE PDG-RBE-RMPF
UM EIO
TC 0
UR https://archimer.ifremer.fr/doc/00882/99376/109382.pdf
LA English
DT Article
DE ;Plastic pollution;Ecotoxicology;Leachate;Tropical species;Bioindicator;Pearl farming
AB In French Polynesia, pearl farming represents the second economic resource of the country. The distinctive black pearls produced there are globally recognized and appreciated. However, pearl farms extensively use submerged plastic materials. Through gas chromatography coupled with tandem mass spectrometry detection (GC/MSMS) analysis, we were able to identify various POPs (Persistent Organic Pollutants) and additives released after 24 hours of leaching into seawater from these “pearl plastics” composed of PE (Polyethylene) and PP (Polypropylene). Subsequently, we tested different concentrations of this plastic leachate on five tropical species commonly raised in the pearl and aquaculture sector in Polynesia: Pinctada margaritifera, Saccostrea cucullata, Holothuria whitmaei, Litopenaeus stylirostris, and Tripneustes gratilla. Monitoring the embryo-larval development of these organisms allowed us to establish a correlation between the decrease in the percentage of normal larvae and the plastic concentration. Through the use of regression models, the EC50 (Effective Concentration) of the plastic leachate for each species was determined, and demonstrated to range from 6.6 to 71.5g/L, depending on the species. The most sensitive species was the black teatfish Holothuria whitmaei, a tropical sea cucumber used for the first time for ecotoxicological tests. The sensitivity of this species, its large distribution in tropical areas, and the various advantages presented by its cultivation make it an interesting bio-indicator species for monitoring plastic pollution in tropical lagoons. 
PY 2024
SO SSRN
PU Elsevier BV
DI 10.2139/ssrn.4755949
ID 99376
ER

EF