FN Archimer Export Format
PT J
TI In vivo effects of metaldehyde on Pacific oyster, Crassostrea gigas: comparing hemocyte parameters in two oyster families.
BT 
AF MOREAU, Pierrick
   BURGEOT, Thierry
   RENAULT, Tristan
AS 1:1;2:2;3:1;
FF 1:PDG-RBE-SG2M-LGPMM;2:PDG-RBE-BE;3:PDG-RBE;
C1 IFREMER, Lab Genet & Pathol Mollusques Marins, Unite Sante Genet & Microbiol Mollusques, F-17390 Ronce Les Bains, La Tremblade, France.
   IFREMER, Res Unit Biogeochem & Ecotoxicol, F-44311 Nantes, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI LA TREMBLADE
   NANTES
SE PDG-RBE-SG2M-LGPMM
   PDG-RBE-BE
   PDG-RBE
IN WOS Ifremer jusqu'en 2018
IF 2.76
TC 15
UR https://archimer.ifremer.fr/doc/00195/30602/29059.pdf
LA English
DT Article
DE ;Immunity;Hemocytes;Metaldehyde;Pacific oyster;Flow cytometry;In vivo;Genetic diversity
AB Pollutants via run-off into the ocean represent a potential threat to marine organisms, especially bivalves such as oysters living in coastal environments. These organisms filter large volumes of seawater and may accumulate contaminants within their tissues. Pesticide contamination in water could have a direct or indirect toxic action on tissues or cells and could induce alteration of immune system. Bivalve immunity is mainly supported by hemocytes and participates directly by phagocytosis to eliminate pathogens. Some studies have shown that pesticides can reduce immune defences and/or modify genomes in vertebrates and invertebrates. Metaldehyde is used to kill slugs, snails and other terrestrial gastropods. Although metaldehyde has been detected in surface waters, its effects on marine bivalves including the Pacific oyster, Crassostrea gigas, have never been studied. Given the mode of action of this molecule and its targets (molluscs), it could be potentially more toxic to oysters than other pesticides (herbicides, fungicides, insecticides, etc.). Effects of metaldehyde on oyster hemocyte parameters were thus monitored through in vivo experiments based on a short-term exposure. In this work, metaldehyde at 0.1 μg/L, which corresponds to an average concentration detected in the environment, modulated hemocyte activities of Pacific oysters after an in vivo short-term contact. Individuals belonging to two families showed different behaviours for some hemocyte activities after contamination by metaldehyde. These results suggested that effects of pollutants on oysters may differ from an individual to another in relation to genetic diversity. Finally, it appears essential to take an interest in the effects of metaldehyde on a wide variety of aquatic invertebrates including those that have a significant economic impact.
PY 2015
PD JUL
SO Environmental Science And Pollution Research
SN 0944-1344
PU Springer Heidelberg
VL 22
IS 11
UT 000354960300003
BP 8003
EP 8009
DI 10.1007/s11356-014-3162-7
ID 30602
ER

EF