@article {9329, title = {Comparative effects of trace metal elements released from dissolution of aluminum-based galvanic anodes, aluminum chloride, zinc chloride, and their mixture on the development of the Pacific oyster D-larvae, Crassostrea gigas}, journal = {Environmental Science and Pollution Research}, year = {2023}, month = {Jul-08-2025}, doi = {10.1007/s11356-023-29566-7}, url = {https://link.springer.com/10.1007/s11356-023-29566-7}, author = {Levallois, Alexandre and Katherine Costil and Caplat, Christelle and Basuyaux, Olivier and Lebel, Jean-Marc and Guegan, Claire and Serpentini, Antoine} } @article {9327, title = {Effects on Growth of Juvenile Abalones Haliotis tuberculata Under Chronic Exposition to Metals Released from the Dissolution of an Aluminium-Based Galvanic Anode}, journal = {Archives of Environmental Contamination and Toxicology}, volume = {84}, year = {2023}, month = {Jan-01-2023}, pages = {32 - 44}, abstract = {In the marine environment, the galvanic anode cathodic protection system (GACP) undergoes oxidation and releases metals in the forms of ions or oxy-hydroxides into the environment. The objective of the present study was to investigate the toxicity of a cocktail of metals released from the dissolution of an aluminium-based galvanic anode (~95\% Al,~5\% Zn) on the abalone Haliotis tuberculata. Juveniles were exposed for 16\ weeks (i.e. 12\ weeks of exposure and 4\ weeks of decontamination phase) and their growth, intake rate, conversion rate and metallic concentrations were monitored. A total of 6 conditions were tested: a control, 4 concentrations based on Al and a trophic control. Results showed that the mortality reached 57\% for individuals exposed to 1125\ {\textmu}g L-1 of Al, and the abalone growth signifcantly decreased for an Al concentration greater than 495\ {\textmu}g L-1. At the highest exposure concentration, intake rate measurements revealed that the appetite of abalones was afected, supported by the large increase in the conversion rate which was indicative of a poor feed efciency. The monitoring of metallic concentrations showed that H. tuberculata strongly bioconcentrated Al relative to zinc. The diet did not appear to be the primary pathway for metal entry. Concentrations that signifcantly impacted abalone growth and survival during the experiment were higher than those found in natural environment, but the bioconcentration of Al into the tissues of a primary consumer such as abalone may be a potential pathway for Al to enter food webs.}, issn = {0090-4341}, doi = {10.1007/s00244-022-00975-y}, url = {https://link.springer.com/10.1007/s00244-022-00975-y}, author = {Nivelais, Laureen and Levallois, Alexandre and Basuyaux, Olivier and Katherine Costil and Lebel, Jean-Marc and Larsonneur, Solveig and Guichard, Gwendoline and Serpentini, Antoine and Caplat, Christelle} } @article {9326, title = {Impact assessment of metals realeased by aluminium-based galvanic anode on the physiology of the abalone Haliotis tuberculata in controlled conditions}, journal = {Ecotoxicology}, volume = {32}, year = {2023}, month = {Jan-05-2023}, pages = {438 - 450}, abstract = {To protect metal structures immersed in the sea from corrosion, the galvanic anode cathodic protection system (GACP) is often applied. However, this association leads to continuous oxidation of the galvanic anode and therefore to a release of a metal cocktail in the forms of ions or oxy-hydroxides. Therefore, the main objective of our study was to investigate the toxicity of elements released from the dissolution of an aluminium-based galvanic anode (\~{}95\% Al, \~{}5\% Zn, \<0.1\% for In, Cu, Cd, Mn, Fe) on a grazing gastropod, the abalone Haliotis tuberculata. The present study was carried out in complement to other research currently in submission. Gastropods were exposed for 16 weeks (12 weeks of exposure and 4 weeks of decontamination phase) to 6 conditions including a control, 4 concentrations based on total aluminium level (86, 425, 1096 and 3549 {\textmu}g L-1 ) and a trophic control, corresponding to abalones placed in non-contaminated natural seawater but fed with contaminated algae. The effects of metals on growth, glycogen levels, brix index of hemolymph, MDA levels in digestive gland and gills, hemocyte phagocytic activity, ROS production, lysosomal system and the progress of gametogenesis were investigated throughout the entire exposure allowing the realization of kinetics. The results revealed that the aluminiumbased anode does not seem to have an effect on the health status of the individuals for environmentally realistic concentrations. However, in extreme conditions strong effects were reported on the growth, immune system and reproduction of abalone.}, issn = {0963-9292}, doi = {10.1007/s10646-023-02652-9}, url = {https://link.springer.com/10.1007/s10646-023-02652-9}, author = {Alexandre Levallois and Nivelais, Laureen and Christelle Caplat and Jean-Marc Lebel and Basuyaux, Olivier and Katherine Costil and Antoine Serpentini} } @article {8881, title = {Effects of chronic exposure of metals released from the dissolution of an aluminium galvanic anode on the Pacific oyster Crassostrea gigas}, journal = {Aquatic Toxicology}, volume = {Volume 249}, year = {2022}, abstract = {Among the anthropogenic sources releasing metallic species into the marine environment, the galvanic anode cathodic protection system (GACP) is widely used to protect submerged metallic structures from corrosion. Galvanic anodes are an alloy of metals of which the main component is aluminum or zinc. Very few studies were performed to study their potential biological effects. We investigated the chronic toxicity of an aluminum-based galvanic anode on the Pacific oyster, Crassostrea gigas. Oysters were exposed for 84 days to three concentrations of aluminum (50, 100 and 300 {\textmu}g L-1) obtained with an electrochemical experimental device simulating the dissolution of a galvanic anode. At different exposure times, we studied a battery of biomarkers of the immune system, reproductive parameters and the metabolic state of the oysters. Results demonstrated a sensitivity of oysters at the highest concentration and some biological effects were observed especially for the malondialdehyde content in the digestive gland after 84 days of exposure. In addition to these biomarkers, the bioaccumulation of the different metals composing the anode was measured in oysters{\textquoteright} tissues. Bivalves bioaccumulated more zinc than aluminum, even if aluminium was present in greater concentrations during exposures. Moreover, exposure time did not influence the bioaccumulation of aluminum in contrast to zinc.}, keywords = {aluminium, Bioaccumulation, Biological effects, Crassostrea gigas, galvanic anode, Oyster}, doi = {https://doi.org/10.1016/j.aquatox.2022.106223}, author = {Alexandre Levallois and Christelle Caplat and Olivier Basuyaux and Jean-Marc Lebel and Antoine Laisney and Katherine Costil and Antoine Serpentini} } @article {7189, title = {Establishment and population features of the non-native Atlantic rangia, Rangia cuneata (Mollusca: Bivalvia), in northwestern France}, volume = {15}, year = {2020}, pages = {367-381}, abstract = {The presence of shells of the Atlantic rangia, Rangia cuneata, a brackish-water species native from the Gulf of Mexico also known as gulf wedge clam, was reported in 2017 on the French coasts of the English Channel, in the waterway that connects Caen to the sea. However, no information was available on whether a population of this alien species had successfully established in the region. Here, only empty shells{\textemdash}except for one live individual{\textemdash}were sampled in that waterway, and the sampling was shifted to the nearby marina of Ouistreham, where water is mesohaline (6.89 {\textpm} SD 0.06 PSU). In spring 2017, the mean density in the marina reached 110.45 {\textpm} 86.08 ind\ m-2, largely dominating the benthos community. The population was mostly composed of fairly large individuals, with no young-of-the-year found inside the marina. The modal values of the size frequency distribution ranged between 35 and 40 mm shell length. The growth patterns determined from the annual rings suggest a maximum lifespan of eight completed years. Following the assumption that colonization occurred at the larval stage, as in other European countries, this population may have established in 2009, i.e. only four years after its first detection in Europe, in the Antwerp harbour. The specimens collected are the largest recorded in European waters, suggesting that a highly suitable environment for the species in the region. Given the invasive potential of Atlantic rangia within the last decade, a close monitoring of this population and of the spread of the species in French and European waters appears necessary to determine its impacts on these ecosystems.}, keywords = {Alien species, brackish waters, density, Growth, Normandy (F), Reproduction, The Atlantic rangia}, author = {Robin Faillettaz and Christophe Roger and Michel Mathieu and Jean-Paul Robin and Katherine Costil} } @article {8721, title = {In vitro effects of glyphosate-based herbicides and related adjuvants on primary culture of hemocytes from Haliotis tuberculata}, journal = {Fish \& Shellfish Immunology}, volume = {100}, year = {2020}, month = {Jan-05-2020}, pages = {1 - 8}, issn = {10504648}, doi = {10.1016/j.fsi.2020.02.058}, url = {https://linkinghub.elsevier.com/retrieve/pii/S1050464820301455}, author = {Mottier, Antoine and Serpentini, Antoine and Dallas, Lorna and James, Ad{\`e}le and Lebel, Jean-Marc and Katherine Costil} } @article {6631, title = {In vitro effects of glyphosate-based herbicides and related adjuvants on primary culture of hemocytes from Haliotis tuberculata}, journal = {Fish and Shellfish Immunology}, year = {2020}, abstract = {Glyphosate-based herbicides are among the most produced and widely-used herbicides.\ Studies have shown that commercial formulations and adjuvants may be more toxic to non-target organisms than the active ingredients alone, but the mechanisms of action of these\ chemicals remain unclear. The aim of this study was to investigate the in vitro effects of\ glyphosate, a commercial formulation and adjuvant alone using primary culture of hemocytes\ from the European abalone Haliotis tuberculata, a commonly farmed shellfish. Glyphosate\ was found to have negligible effects on viability, phagocytic activities and lysosome stability\ even with very high doses (i.e. 100 mg L-1). By contrast, greater effects on viability were\ observed for the commercial formulation and adjuvant alone, with EC50 values of 41.42 mg L-1 and 1.85 mg L-1, respectively. These results demonstrate that the toxic sublethal effects (i.e.\ phagocytic activity and destabilization of lysosomal membranes) of formulated glyphosate
came from adjuvants and suggest they may be related to cell and organelle membrane\ destabilization.}, keywords = {glyphosate, Haliotis tuberculata, Hemocytes, neutral red retention assay, Phagocytosis, POEAs, viability assay}, doi = {10.1016/j.fsi.2020.02.058}, url = {https://doi.org/10.1016/j.fsi.2020.02.058}, author = {Mottier, Antoine and Antoine Serpentini and Dallas, Lorna and James, Ad{\`e}le and Lebel, Jean-Marc and Katherine Costil} } @article {6469, title = {Realistic environmental exposure to microplastics does not induce biological effects in the Pacific oyster Crassostrea gigas}, journal = {Marine Pollution Bulletin}, volume = {150}, year = {2020}, month = {Jan-01-2020}, pages = {110627}, abstract = {The aim of the present study was to evaluate the presence and potential toxic effects of plastic fragments(\< 400μm) of polyethylene and polypropylene on the Pacific oysterCrassostrea gigas.Oysters were exposed toenvironmentally relevant concentrations (0, 0.008, 10, 100μg of particles/L) during 10 days, followed by adepuration period of 10 days in clean seawater. Effects of microplastics were evaluated on the clearance rate oforganisms, tissue alteration, antioxidant defense, immune alteration and DNA damage. Detection and quanti-fication of microplastics in oyster{\textquoteright}s tissues (digestive gland, gills and other tissues) and biodeposits using infraredmicroscopy were also conducted. Microplastics were detected in oyster{\textquoteright}s biodeposits following exposure to alltested concentrations: 0.003, 0.006 and 0.05 particles/mg of biodeposits in oysters exposed to 0.008, 10 and100μg of particles/L, respectively. No significant modulation of biological markers was measured in organismsexposed to microplastics in environmentally relevant conditions.}, keywords = {biodeposits, biomarkers, bivalves, Crassostrea gigas, microplastics}, issn = {0025326X}, doi = {10.1016/j.marpolbul.2019.110627}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0025326X19307751}, author = {Revel, Messika and Ch{\^a}tel, Am{\'e}lie and Perrein-Ettajani, Hanane and Bruneau, M{\'e}lanie and Akcha, Farida and Sussarellu, Rossana and Rouxel, Julien and Katherine Costil and Decottignies, Priscilla and Cognie, Bruno and Lagarde, Fabienne and Mouneyrac, Catherine} } @article {6470, title = {Tissue-Specific Biomarker Responses in the Blue Mussel Mytilus spp. Exposed to a Mixture of Microplastics at Environmentally Relevant Concentrations}, journal = {Frontiers in Environmental Science}, volume = {7}, year = {2019}, month = {Sep-03-2020}, abstract = {The impact of a microplastic (MP) mixture composed of polyethylene (PE) and polypropylene (PP) plastic particles, prepared from commercially available products, was evaluated in blue mussels Mytilus spp. exposed to three environmentally relevant concentrations: 0.008 μg L-1 (low), 10 μg L-1 (medium), and 100 μg L-1 (high). Organisms were exposed for 10 days followed by 10 days of depuration in clean seawater under controlled laboratory conditions. The evaluation of MP effects on mussel clearance rate, tissue structure, antioxidant defenses, immune and digestive parameters, and DNA integrity were investigated while the identification of plastic particles in mussel tissues (gills, digestive gland, and remaining tissues), and biodeposits (feces and pseudofaeces) was performed using infrared microscopy (μFT-IR). Results showed the presence of MPs only in the digestive gland of mussels exposed to the highest tested concentration of MPs with a mean of 0.75 particle/mussel (after the 10 days of exposure). In biodeposits, PE and PP particles were detected following exposure to all tested concentrations confirming the ingestion of MPs by the organisms. A differential response of antioxidant enzyme activities between digestive gland and gills was observed. Significant increases in superoxide dismutase (SOD) and catalase (CAT) activities were measured in the digestive gland of mussels exposed to the low (0.008 μg L-1) and medium (10 μg L-1) concentrations ofMPs and in the gills frommussels exposed to the highest concentration (100 μg L-1) of MPs that could be indicative of a change in the redox balance. Moreover, an increase in acid phosphatase activity was measured in hemolymph of mussels exposed to 0.008 and 10 μg L-1 concentrations. No significant difference was observed in the clearance rate, and histopathological parameters between control and exposed mussels. This study brings new insights on the potential sublethal impacts of MPs at environmentally relevant concentrations in marine bivalves.}, keywords = {biomarkers, microplastics, Mytilus, oxidative stress, polyethylene, polypropylene}, doi = {10.3389/fenvs.2019.00033}, url = {https://www.frontiersin.org/article/10.3389/fenvs.2019.00033}, author = {Revel, Messika and Lagarde, Fabienne and Perrein-Ettajani, Hanane and Bruneau, M{\'e}lanie and Akcha, Farida and Sussarellu, Rossana and Rouxel, Julien and Katherine Costil and Decottignies, Priscilla and Cognie, Bruno and Ch{\^a}tel, Am{\'e}lie and Mouneyrac, Catherine} } @article {6943, title = {Assessing the impacts of several algae-based diets on cultured European abalone ( Haliotis tuberculata )}, journal = {Aquatic Living Resources}, volume = {31}, year = {2018}, month = {Jan-01-2018}, pages = {28}, doi = {10.1051/alr/2018018}, url = {https://www.alr-journal.org/10.1051/alr/2018018}, author = {Basuyaux, Olivier and Blin, Jean-Louis and Katherine Costil and Richard, Olivier and Lebel, Jean-Marc and Antoine Serpentini} } @article {5551, title = {Distribution, associated species and extent of biofouling {\textquotedblleft}reefs{\textquotedblright} formed by the alien species Ficopomatus enigmaticus (Annelida, Polychaeta) in marinas}, journal = {Estuarine, Coastal and Shelf Science}, year = {2018}, abstract = {

Artificial structures in ports are commonly colonized by non-indigenous epifauna that tolerate high pollution levels. Bioconstructions built by alien species may offer sheltered microhabitats for motile (vagile) animals but biofouling often becomes detrimental to human activities. In this context, the present study provides an inventory of 1) the extent of biofouling related to the alien Polychaeta Ficopomatus enigmaticus on hard structures of marinas in Normandy, France, and 2) the biodiversity of sessile (attached) or vagile (motile) fauna associated with these {\textquotedblleft}reefs{\textquotedblright}, including both native and alien species. Reefs built by F. enigmaticus were found in 6 out of 12 marinas with oligohaline-mesohaline waters. Significant differences in the total volume of biofouling were found among sites, with maximum values observed in Honfleur{\textquoteright}s old basin (459.52 mL per 0.04 m2). Ficopomatus enigmaticus greatly dominated the sessile invertebrate community both in volume (74{\textendash}100\%) and weight (70{\textendash}100\%) in 5 out of 6 marinas. The fouling formed by 5 alien species was colonized by 15 motile invertebrate taxa, including 3 cryptogenic or alien species. The alien crab Rhithropanopeus harrisi displayed the highest frequency of occurrence (\>80\%) and mean density (\>300 ind m-2), and the global densities of sessile (except F. enigmaticus) and motile fauna were significantly correlated (r = 0.824; p \< 0.05). While motile fauna density was also significantly correlated with the biovolume of B. improvisus and M. leucophaeata, it was not with F. enigmaticus (r = 0.421; p \> 0.05). In line with previous studies, these results suggest that F. enigmaticus acts as an engineer offering shelter for reef-associated organisms. In addition, results suggest that at the regional scale, inter-site differences in motile fauna may reflect differences in environmental parameters such as salinity. The presence of F. enigmaticus at low salinity levels led to assess its potential distribution at the scale of the European coasts, suggesting that in the context of climate change, favorable conditions for spawning (\>18 {\textdegree}C) will likely expand towards the North, and particularly in the eastern and northern Baltic Sea.

}, keywords = {Alien species, Benthic communities, Biofouling, Ficopomatus enigmaticus, Marinas, Normandy}, doi = {https://doi.org/10.1016/j.ecss.2018.07.007}, author = {Maud Charles and Robin Faillettaz and Nicolas Desroy and J{\'e}r{\^o}me Fournier and Katherine Costil} } @article {4797, title = {Sub-lethal effects of a glyphosate-based commercial formulation and adjuvants on juvenile oysters (Crassostrea gigas) exposed for 35 days}, journal = {Marine Pollution Bulletin}, year = {2017}, keywords = {Crassostrea gigas, individual biomarkers, mortality, oxidative stress, POEAs, Roundup}, author = {S{\'e}guin, Alexis and Mottier, Antoine and Perron, Carole and Lebel, Jean-Marc and Antoine Serpentini and Katherine Costil} } @article {8717, title = {Sub-lethal effects of a glyphosate-based commercial formulation and adjuvants on juvenile oysters ( Crassostrea gigas ) exposed for 35 days}, journal = {Marine Pollution Bulletin}, volume = {117}, year = {2017}, month = {Jan-04-2017}, pages = {348 - 358}, issn = {0025326X}, doi = {10.1016/j.marpolbul.2017.02.028}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0025326X1730142X}, author = {S{\'e}guin, Alexis and Mottier, Antoine and Perron, Carole and Lebel, Jean Marc and Serpentini, Antoine and Katherine Costil} } @article {4988, title = {Toxicity assessment of five emerging pollutants, alone and in binary or ternary mixtures, towards three aquatic organisms}, journal = {Environmental Science and Pollution Research}, year = {2017}, abstract = {

Despite a growing scientific attention on ecological impact of emerging pollutants (EPs) such as pharmaceuticals, personal care products, and pesticides, knowledge gaps remain regarding mixture toxicity and effects on aquatic organisms. Several EPs were screened in seawater (Normandy, France), and the ecotoxicity of five compounds, chosen on their occurrence in ecosystems and use worldwide, was assessed and were the biocides methylparaben (MP) and triclosan (TCS), a pesticide degradation product (AMPA), and the pharmaceuticals venlafaxine (VEN) and carbamazepine (CBZ). The acute or sub-chronic toxicity, alone or in binary/ternary mixtures of three of them (CBZ, AMPA, and MP), was assessed on one marine and two freshwater organisms: Crassostrea gigas, Pseudokirchneriella subcapitata, and Daphnia magna. TCS and AMPA were, respectively, the most (EC50 \< 1 mg L-1) and the least (EC50 \> 50 mg L-1) toxic chemicals for the four endpoints (algal growth inhibition, daphnia immobilization, oyster embryotoxicity, and metamorphosis). The anxiolytic VEN (EC50 \< 1 mg L-1) was particularly toxic to oyster larvae showing sensitivity difference between freshwater and marine organisms. If all the mixtures appeared to be in the same range of toxicity, the joint-toxic effects mainly led to synergistic or antagonistic interactions compared to single-compound toxicity. The data also highlighted species-dependent differing models of toxicity and underscored the need for an awareness of cocktail effects for better ecological risk assessment.

}, keywords = {Freshwater species, Marine bivalve, Mixture and single-compound toxicity, Personal care products, Pesticides, pharmaceuticals}, doi = {DOI 10.1007/s11356-017-9306-9}, author = {Di Poi, Carole and Katherine Costil and Bouchart, Valerie and Halm-Lemeille, Marie-Pierre} } @article {4596, title = {Metal bioaccumulation and physiological condition of the Pacific oyster (Crassostrea gigas) reared in two shellfish basins and a marina in Normandy (northwest France).}, journal = {Mar Pollut Bull}, volume = {106}, year = {2016}, month = {2016 May 15}, pages = {202-14}, abstract = {

A 5-month experiment combining a geochemical survey of metals with a bioaccumulation study in batches of Crassostrea gigas was conducted in two shellfish farming areas and a marina in Normandy (France). Various endpoints at different levels of biological organization were studied. ROCCH data showed differences in biota contamination between the two shellfish areas but the present study revealed only slight differences in metallic contamination and biomarkers. By contrast, significantly different values were recorded in the marina in comparison with the two other sites. Indeed, higher levels of Cd, Cu and Zn were measured in the oysters from the marina, and these oysters also showed a poorer physiological condition (e.g., condition index, histopathological alterations and neutral lipid content). For coastal monitoring, the multi-biomarker approach coupled with an assessment of metallic contamination in biota appeared to be suitable for discriminating spatial differences in environmental quality after only a few months of exposure.

}, issn = {1879-3363}, doi = {10.1016/j.marpolbul.2016.02.068}, author = {S{\'e}guin, A and Christelle Caplat and Antoine Serpentini and Lebel, J M and Menet-Nedelec, F and Katherine Costil} } @article {8716, title = {Metal bioaccumulation and physiological condition of the Pacific oyster (Crassostrea gigas) reared in two shellfish basins and a marina in Normandy (northwest France)}, journal = {Marine Pollution Bulletin}, volume = {106}, year = {2016}, month = {Jan-05-2016}, pages = {202 - 214}, issn = {0025326X}, doi = {10.1016/j.marpolbul.2016.02.068}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0025326X16301199}, author = {S{\'e}guin, A. and Caplat, C. and Serpentini, A. and Lebel, J.M. and Menet-Nedelec, F. and Katherine Costil} } @article {3506, title = {Sub-chronic exposure to fluoxetine in juvenile oysters (Crassostrea gigas): uptake and biological effects.}, journal = {Environ Sci Pollut Res Int}, year = {2016}, month = {2014 Oct 15}, abstract = {

The bioconcentration potential of fluoxetine (FLX) and its biological effects were investigated in juvenile Pacific oyster exposed for 28\ days to environmentally relevant concentrations of FLX (1\ ng L(-1), 100\ ng L(-1) and up to 10\ μg\ L(-1)). FLX bioaccumulated in oyster flesh resulting in 28-day bioconcentration factors greater than 2,000 and 10,000 by referring to wet and dry weights, respectively. Nevertheless, FLX did not induce oyster mortality, delayed gametogenesis, or lead to adverse histopathological alterations. At the two highest concentrations, despite non-optimal trophic conditions, FLX stimulated shell growth but only in a transient manner, suggesting a role of serotonin in the regulation of feeding and metabolism in bivalves. Those high concentrations seemed to drive bell-shaped responses of catalase and glutathione S-transferase activities throughout the exposure period, which may indicate the activation of antioxidant enzyme synthesis and then an enhanced catabolic rate or direct inhibition of those enzymes. However, no clear oxidative stress was detected because no strong differences in thiobarbituric acid-reactive substance (TBARS) content (i.e. lipid peroxidation) were observed between oyster groups, suggesting that cellular defence mechanisms were effective. These results demonstrate the importance of considering additional biomarkers of oxidative stress to obtain a comprehensive overview of the FLX-induced changes in marine bivalves exposed under realistic conditions. Considering the battery of biomarkers used, FLX appears to induce little or no effects on oyster physiology even at a concentration of 10\ μg\ L(-1). These results do not confirm the lowest observed effect concentration (LOEC) values reported by some authors in other mollusc species.

}, issn = {1614-7499}, doi = {10.1007/s11356-014-3702-1}, author = {Di Poi, C and L Evariste and S{\'e}guin, Alexis and Mottier, A and Pedelucq, Julie and Jean-Marc Lebel and Antoine Serpentini and Budzinski, H{\'e}l{\`e}ne and Katherine Costil} } @article {3505, title = {Effects of subchronic exposure to glyphosate in juvenile oysters (Crassostrea gigas): From molecular to individual levels.}, journal = {Mar Pollut Bull}, year = {2015}, month = {2014 Oct 30}, abstract = {

Glyphosate-based herbicides are extensively used and can be measured in aquatic ecosystems, including coastal waters. The effect of glyphosate on non-target organisms is an issue of worldwide concern. The aim of this study was to investigate the effects of subchronic exposure to glyphosate in juvenile oysters, Crassostrea gigas. Yearling oysters were exposed to three concentrations of glyphosate (0.1, 1 and 100μgL(-1)) for 56days. Various endpoints were studied, from the individual level (e.g., gametogenesis and tissue alterations) to the molecular level (mRNA quantification), including biochemical endpoints such as glutathione-S-transferase (GST) and catalase activities and malondialdehyde content. No mortality and growth occurred during the experiment, and individual biomarkers revealed only slight effects. The levels of gene expression significantly increased in oysters exposed to the highest glyphosate concentration (GST and metallothioneins) or to all concentrations (multi-xenobiotic resistance). These results suggested an activation of defence mechanisms at the molecular level.

}, issn = {1879-3363}, doi = {10.1016/j.marpolbul.2014.10.026}, author = {Mottier, A and S{\'e}guin, Alexis and Devos, Alexandre and Le Pabic, C and Voiseux, C and Lebel, Jean-Marc and Antoine Serpentini and Fievet, B and Katherine Costil} } @article {3512, title = {Assessment of cytotoxic and immunomodulatory properties of four antidepressants on primary cultures of abalone hemocytes (Haliotis tuberculata).}, journal = {Aquat Toxicol}, volume = {153}, year = {2014}, month = {2014 Aug}, pages = {3-11}, abstract = {

Pharmaceutical compounds like antidepressants found in surface waters raise concerns due to their potential toxicity on non-target aquatic organisms. This study aimed at investigating the in vitro cytotoxicity and immunomodulatory properties of four common antidepressants, namely Amitriptyline, Clomipramine, Citalopram and Paroxetine, on primary cultures of abalone hemocytes (Haliotis tuberculata), after 48 h-exposure. Effects on immunocompetence (phagocytosis, levels of reactive oxygen species, esterase activity and lysosomal membrane destabilization) were assessed. Results obtained by MTT assays revealed that acute toxicity is unlikely to occur in the environment since the LC50s of the four antidepressants are at the mg/L level. The different immunological endpoints displayed a biphasic response, with an increase at the lowest concentration (i.e. 1 μg/L) followed by a decrease at higher concentrations. Overall, Amitriptyline and Clomipramine, the two tricyclic antidepressants, had higher immunomodulatory capacities than the two selective serotonin reuptake inhibitors Citalopram and Paroxetine. Amitriptyline was the most potent and Citalopram the least potent drug in altering immune function in H. tuberculata.

}, keywords = {Animals, Antidepressive Agents, Cell Survival, Cells, Cultured, Enzyme Activation, Esterases, Gastropoda, Hemocytes, Immunity, Innate, Lethal Dose 50, Phagocytosis, Reactive Oxygen Species, Water Pollutants, Chemical}, issn = {1879-1514}, doi = {10.1016/j.aquatox.2013.10.020}, author = {Minguez, Laetitia and Halm-Lemeille, Marie-Pierre and Katherine Costil and Bureau, Ronan and Jean-Marc Lebel and Antoine Serpentini} } @article {3428, title = {Comparison of the sensitivity of seven marine and freshwater bioassays as regards antidepressant toxicity assessment.}, journal = {Ecotoxicology}, volume = {23}, year = {2014}, month = {2014 Nov}, pages = {1744-54}, abstract = {

The hazards linked to pharmaceutical residues like antidepressants are currently a major concern of ecotoxicology because they may have adverse effects on non-target aquatic organisms. Our study assesses the ecotoxicity of three antidepressants (fluoxetine, sertraline and clomipramine) using a battery of marine and freshwater species representing different trophic levels, and compares the bioassay sensitivity levels. We selected the following bioassays: the algal growth inhibition test (Skeletonema marinoi and Pseudokirchneriella subcapitata), the microcrustacean immobilization test (Artemia salina and Daphnia magna), development and adult survival tests on Hydra attenuata, embryotoxicity and metamorphosis tests on Crassostrea gigas, and in vitro assays on primary cultures of Haliotis tuberculata hemocytes. The results showed high inter-species variability in EC50-values ranging from 43 to 15,600\ {\textmu}g/L for fluoxetine, from 67 to 4,400\ {\textmu}g/L for sertraline, and from 4.70\ {\textmu}g/L to more than 100,000\ {\textmu}g/L for clomipramine. Algae (S. marinoi and P. subcapitata) and the embryo-larval stages of the oyster C. gigas were the most sensitive taxa. This raises an issue due to their ecological and/or economic importance. The marine crustacean A. salina was the least sensitive species. This difference in sensitivity between bioassays highlights the importance of using a test battery.

}, issn = {1573-3017}, doi = {10.1007/s10646-014-1339-y}, author = {Minguez, Laetitia and Di Poi, C and Farcy, E and Ballandonne, C{\'e}line and Benchouala, Amira and Bojic, Cl{\'e}ment and Cossu-Leguille, Carole and Katherine Costil and Antoine Serpentini and Jean-Marc Lebel and Halm-Lemeille, Marie-Pierre} } @article {3509, title = {The effect of different polychlorinated biphenyls on two aquatic models, the green alga Pseudokirchneriella subcapitata and the haemocytes from the European abalone Haliotis tuberculata.}, journal = {Chemosphere}, volume = {110}, year = {2014}, month = {2014 Sep}, pages = {120-8}, abstract = {

The present study was conducted to determine the toxicity of different polychlorinated biphenyls (PCBs) on the green algae, Pseudokirchneriella subcapitata and the haemocytes from the European abalone, Haliotis tuberculata. Using the algal growth inhibition test, the green algae median Effective Concentration (EC50) values ranged from 0.34μM for PCB28 to more than 100μM for PCBs 101 and 153. Considering the MTT viability test, the abalone EC50 values ranged from 1.67μM for PCB153 to 89μM for PCB28. Our results in contrast to previous observation in vertebrates did not show significant differences between the dioxin like- and non dioxin like-PCBs toxicities regardless of the model used. However, our results demonstrated that the toxicities of PCBs were species dependent. For example, PCB28 was the most toxic compound for P. subcapitata whereas PCBs 1, 180 and 153 were less toxic for that species. On the contrary, PCB153 was reported as the most toxic for H. tuberculata haemocytes and PCB28 the least toxic. To investigate the mode of action of these compounds, we used an in silico method. Our results suggested that PCBs have a non-specific mode of action (e.g., narcosis) on green algae, and another mode of action, probably more specific than narcosis, was reported for PCBs on the abalone haemocytes.

}, keywords = {Animals, Chlorophyta, Environmental Pollutants, Gastropoda, Hemocytes, Polychlorinated Biphenyls, Tetrachlorodibenzodioxin}, issn = {1879-1298}, doi = {10.1016/j.chemosphere.2014.02.023}, author = {Halm-Lemeille, Marie-Pierre and Abbaszadeh Fard, Elham and Latire, T and Ferard, Jean-Fran{\c c}ois and Katherine Costil and Jean-Marc Lebel and Bureau, Ronan and Antoine Serpentini} } @article {3511, title = {Effects of acute exposures to mecoprop, mecoprop-p and their biodegradation product (2-MCP) on the larval stages of the Pacific oyster, Crassostrea gigas.}, journal = {Aquat Toxicol}, volume = {146}, year = {2014}, month = {2014 Jan}, pages = {165-75}, abstract = {

Studies have shown that pesticides are sometimes detected at rather high levels in seawater and it has been suggested that these chemical compounds could act as additional stress factor for oysters cultured in coastal environments. The effects of pesticides on marine molluscs could be particularly harmful in the early stages which correspond to critical life stages. This study aimed to assess the effects of mecoprop, mecoprop-p and their degradation compound 2-methyl-4-chlorophenol on two larval stages of Crassostrea gigas. Embryotoxic effects were assessed on veliger larvae after 36 h exposures, and both percentages of normal larvae and types of abnormalities were taken into account. The effects of the three substances were evaluated on 21-day-old pediveliger larvae by calculating metamorphosis rates after 24h exposures. The results of the embryotoxicity assay indicated that 2-methyl-4-chlorophenol was more toxic (EC50: 10.81 mg L(-1)) than its parent compounds (EC50 mecoprop: 42.55 mg L(-1); EC50 mecoprop-p: 78.85 mg L(-1)). Mecoprop in particular injured shell formation with an increase of shell abnormalities following herbicide concentrations. The active substances were not toxic to metamorphosis processes, but 2-MCP was revealed to be more toxic to the success of metamorphosis (EC50: 7.20 mg L(-1)) than to embryo-larval development. However, the toxic concentrations were several orders of magnitude higher than environmental concentrations.

}, keywords = {2-Methyl-4-chlorophenoxyacetic Acid, Animals, Chlorophenols, Crassostrea, Embryo, Nonmammalian, Larva, Metamorphosis, Biological, Water Pollutants, Chemical}, issn = {1879-1514}, doi = {10.1016/j.aquatox.2013.11.008}, author = {Mottier, A and Kientz-Bouchart, Val{\'e}rie and Dubreule, Christelle and Antoine Serpentini and Jean-Marc Lebel and Katherine Costil} } @article {4634, title = {In vitro effect of five pharmaceuticals on the viability of the European abalone hemocytes, Haliotis tuberculata}, journal = {J xenobiotics}, volume = {4}, year = {2014}, pages = {78-80}, keywords = {cell viability, Haliotis tuberculata, hemocyte, in vitro, pharmaceuticals}, doi = {10.4081/xeno.2014.4900}, author = {Letullier, Amandine and Minguez, Laetitia and Katherine Costil and Halm-Lemeille, Marie-Pierre and Jean-Marc Lebel and Antoine Serpentini} }