Effects of Pesticides on Marine Bivalves: What Do We Know and What Do We Need to Know?

Renault, Tristan

doi:10.5772/19155

Cited by 9 publications

(11 citation statements)

References 70 publications

(72 reference statements)

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“…It too has been detected in marine waters around Singapore and elsewhere in the range of nanograms to low micrograms per liter (Table 1) as a result of terrestrial runoff [3,9]. Besides their detection in environmental samples, most studies aiming at evaluating the aquatic ecotoxicity of these 3 contaminants have done so at concentrations largely above environmental levels [7,[9][10][11][12][13][14][15], whereas their sublethal effects on marine invertebrates have scarcely been studied at environmentally relevant concentrations [16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Use of a suite of biomarkers to assess the effects of carbamazepine, bisphenol A, atrazine, and their mixtures on green mussels, Perna viridis

Juhel

Bayen

Goh

et al. 2016

Enviro Toxic and Chemistry

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The present study investigated the toxicity of several emerging contaminants: the pharmaceutical drug carbamazepine (CBZ), the plasticizer bisphenol A (BPA), and the herbicide atrazine (ATZ) in a marine bivalve. Green mussels (Perna viridis) were exposed to different concentrations of CBZ, BPA, and ATZ, either individually or as mixtures over a 7-d period, and a suite of molecular and cellular biomarkers were analyzed: biomarkers of immunotoxicity (total hemocyte count, phagocytosis, extracellular lysozyme), genotoxicity (Comet assay), neurotoxicity (inhibition of acetylcholinesterase [AChE]), endocrine disruption (vitellin-like proteins), and detoxification enzymes (cytochrome P4501A [CYP1A], 7-ethoxyresorufin O-deethylase [EROD], and glutathione-S-transferase [GST]). Results of the single-chemical exposure tests highlighted the relatively low toxicity of CBZ because most biomarker responses observed were recorded at concentrations well above environmental levels. Bisphenol A exposure at environmentally realistic concentrations resulted in clear immunomodulatory, genotoxic, and endocrine-disruptive effects. Similarly, 3 of the 10 biomarkers tested on green mussels (genotoxicity, inhibition of AchE, and EROD) responded after exposure to ATZ at environmentally relevant doses or below, and confirmed the potency of this herbicide to marine bivalves. Exposure tests using mixtures of CBZ, BPA, and ATZ also revealed that these 3 substances were generally acting in an additive manner on the selected biomarkers, at environmental doses, with some exceptions (antagonism and/or synergy) at low and high concentrations. The present study also confirms that most of the biomarkers used are suitable for biomonitoring studies with green mussels. Environ Toxicol Chem 2017;36:429-441. © 2016 SETAC.

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Section: Introductionmentioning

confidence: 99%

Use of a suite of biomarkers to assess the effects of carbamazepine, bisphenol A, atrazine, and their mixtures on green mussels, Perna viridis

Juhel

Bayen

Goh

et al. 2016

Enviro Toxic and Chemistry

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“…Pesticides have been commonly detected in estuaries and coastal areas as a result of anthropogenic activities (Brown et al 2003, Bayen et al 2007, Renault 2011, Nash 2012, Starner & Goh 2012. This study demonstrated that exposing oysters to imidacloprid at 10 µg l −1 for 53 h prior to infection by OsHV-1 did not influence their mortality or the quantity of OsHV-1 in their tissues, suggesting no change in oyster susceptibility.…”

Section: Discussionmentioning

confidence: 51%

“…Estuaries are being increasingly contaminated by pesticides with concentrations that vary seasonally, peaking in spring and summer (Brown et al 2003, Bayen et al 2007, Renault 2011, Nash 2012. Imidacloprid is a neonicotinoid, an insecticide which acts as an antagonist of the nicotinic acetylcholine receptor in the insect neural system (Liu & Casida 1993, Buckingham et al 1997, Matsuda et al 2001.…”

Section: Introductionmentioning

confidence: 99%

“…Imidacloprid has been increasingly reported in water bodies throughout the world, including in oyster farming areas adjacent to agricultural enterprises and areas of high human activity (Renault 2011). Being sessile filter feeders, oysters are subject to a high risk of interaction with contaminants (Ramu et al 2007, Bernal-Hernández et al 2010, Renault 2011. In Sydney water catchments, imidacloprid has been detected in concentrations ranging from 0.04− 4.56 µg l −1 (Sánchez-Bayo & Hyne 2014).…”

Section: Introductionmentioning

confidence: 99%

“…It is therefore important to investigate the individual effect of imidacloprid due to its significant global usage (especially during 'at-risk periods' of the year) and its known effects on invertebrates. Furthermore, combinations in various pesticide cocktails may in crease or decrease the effects of individual pesticides (Renault 2011).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of air exposure, handling stress and imidacloprid on the susceptibility of Crassostrea gigas to Ostreid herpesvirus 1 (OsHV-1)

Oliver¹,

Fuhrmann²,

Hick³

2019

Aquacult. Environ. Interact.

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The emergence of the microvariant genotype of Ostreid herpesvirus 1 (OsHV-1 μVar) has caused mass mortalities of Pacific oysters Crassostrea gigas, resulting in significant economic losses in Europe, New Zealand and Australia. There is variability in the occurrence and severity of disease caused by OsHV-1, with the disease incompletely described by the known complex interactions between host, environment and pathogen. There is a need to evaluate the role of anthropogenic factors on this disease expression due to the number of interactions between humans and oysters. A controlled in vivo laboratory infection model was used to assess changes to the susceptibility of 6 mo old Pacific oysters to OsHV-1 challenge after pre-exposure to combinations of stressors. Pre-exposure of oysters to a concentration of the pesticide imidacloprid consistent with the higher range of environmental contamination in some estuaries had no impact on their survival or OsHV-1 viral load. Oysters pre-exposed to air for 24 h prior to OsHV-1 challenge by cohabitation were more resilient to infection. Moderate physical handling that simulated onfarm handling did not affect survival. This indicates that farm management practices implemented prior to OsHV-1 exposure might not specifically predispose oysters to more severe disease, and more complex confounding factors need to be considered. It is likely that changes in host physiology during emersion provide the host with increased resilience to disease caused by OsHV-1. Continued investigation of the effect of air exposure in the field will aid in validating the results from this laboratory experiment.

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Behavioural Responses of Unio tumidus Freshwater Mussels to Pesticide Contamination

Chmist

Szoszkiewicz

Drożdżyński

2019

Arch Environ Contam Toxicol

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A pesticide is a chemical substance used for the disposal of pests, such as insects, weeds, invertebrates, or rodents. Pesticides interfere with the normal metabolism of the target species; however, some of them may inadvertently affect organisms other than those targeted. Increased quantities of pesticides in water disturb various ecological processes and may increase the mortality rate of various native species of flora and fauna. One of the groups of organisms that are at the greatest risk from the adverse effects of pesticides is the bivalves. This study was designed to assess the behavioural reaction of bivalves to widespread pesticides. As a representative example, the Polish native Unio tumidus (Philipsson 1788) was used. The study investigated different groups of toxic pesticides, such as herbicides (lenacil), insecticides (thiacloprid, DDT and dichlorvos), and fungicides (tebuconazole), in concentrations of 10 mg L −1 . The results showed various behavioural reactions of bivalves to the pesticides. The most evident were activity time and shell opening rate. Moreover, as a result of DDVP contamination, effects were recorded in terms of shell opening level as well as rapid onset of death. Among the five analysed plant protection products, the most toxic was DDVP. Its presence caused adductor muscle paralysis in all analysed individuals. The least toxic pesticides were DDT and thiacloprid. A strong reaction to lenacil was observed especially in the shell opening rate. Tebuconazole caused significant reductions in activity. Despite the fact that the impact of pesticides on ecosystems is under regular observation, with the use of a wide range of scientific techniques, the use of bivalves was shown to have considerable potential for water quality monitoring.

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Effects of Pesticides on Marine Bivalves: What Do We Know and What Do We Need to Know?

Cited by 9 publications

References 70 publications

Use of a suite of biomarkers to assess the effects of carbamazepine, bisphenol A, atrazine, and their mixtures on green mussels, Perna viridis

Use of a suite of biomarkers to assess the effects of carbamazepine, bisphenol A, atrazine, and their mixtures on green mussels, Perna viridis

Effect of air exposure, handling stress and imidacloprid on the susceptibility of Crassostrea gigas to Ostreid herpesvirus 1 (OsHV-1)

Behavioural Responses of Unio tumidus Freshwater Mussels to Pesticide Contamination

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