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Protein molecular responses of field-collected oysters Crassostrea hongkongensis with greatly varying Cu and Zn body burdens Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-19 Yunlong Li; Wen-Xiong Wang
The oyster Crassostrea hongkongensis is an ideal biomonitor due to its widespread distribution along the coast of Southern China and the ability to hyperaccumulate metals including Cu and Zn. In this study, we conducted the first investigation of the molecular responses to metal hyperaccumulation based on quantitative shotgun proteomics technique and genome information. Gill tissue of oysters collected
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Effects of toxic dinoflagellate Alexandrium catenella on sexual maturation and reproductive output in the pacific oyster Crassostrea gigas Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-18 Xu Gao; Cuimin Mu; Qi Li
Marine bivalves which feed mainly on microalgae could accumulate toxins during harmful algal blooms, posing a health hazard to humans and other animals through food chains. The Pacific oyster (Crassostrea gigas) is the globally dominant farmed bivalves in the world. In order to benefit sustainable development of the oyster aquaculture, we assessed the effects of an artificial bloom of the toxin-producing
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Transfer and bioavailability of inorganic and organic arsenic in sediment-water-biota microcosm Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-25 Wei Zhang; Haiyan Xiong; Jichao Zhang; Wen-Xiong Wang
Arsenic (As) contamination in the sediments has received increasing attention, but its transfer and bioavailability to benthic infauna remain much less well known. In the present study, we deployed the diffusive gradients in thin films (DGT) to quantify the different As speciation in the overlying water and porewater, and assessed the exposure pathway, transfer and bioavailability of different As species
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Arsenite induce neurotoxicity of common carp:involvement of blood brain barrier, apoptosis and autophagy, and subsequently relieved by zinc (Ⅱ) supplementation Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-25 Yu Wang; Hongjing Zhao; Yachen Liu; Menghao Guo; Ye Tian; Puyi Huang; Mingwei Xing
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Adsorption of titanium dioxide nanoparticles onto zebrafish eggs affects colonizing microbiota Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-24 Bregje W. Brinkmann; Wouter F. Beijk; Redmar C. Vlieg; S. John T. van Noort; Jorge Mejia; Julien L. Colaux; Stéphane Lucas; Gerda Lamers; Willie J.G.M. Peijnenburg; Martina G. Vijver
Teleost fish embryos are protected by two acellular membranes against particulate pollutants that are present in the water column. These membranes provide an effective barrier preventing particle uptake. In this study, we tested the hypothesis that the adsorption of antimicrobial titanium dioxide nanoparticles onto zebrafish eggs nevertheless harms the developing embryo by disturbing early microbial
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Interactive effects of micro/nanoplastics and nanomaterials/pharmaceuticals: Their ecotoxicological consequences in the aquatic systems Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-19 Vignesh Thiagarajan; Sruthi Ann Alex; R. Seenivasan; N. Chandrasekaran; Amitava Mukherjee
Micro/nanoplastics are ubiquitous in the environment and cause pollution of the aquatic ecosystem, in particular, which is a serious concern worldwide. Micro/nanoplastics can act as a vector for multiple co-contaminants that co-exist in the aquatic environment. Apart from micro/nanoplastics, nanomaterials and pharmaceuticals are other emerging contaminants that can also raise severe problems. Thus
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Removal of Dolichospermum circinale, Microcystis aeruginosa, and their metabolites using hydrogen peroxide and visible light Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-22 Marianna Correia Aragão; Kelly Cristina dos Reis; Maria Aparecida Melo Rocha; Dayvson de Oliveira Guedes; Eduardo Costa dos Santos; Jose Capelo-Neto
Frequent cyanobacterial blooms in reservoirs used for human supply increase the risk of noxious secondary metabolites, endangering human health and ecological balance, and requiring constant monitoring by water companies. Although hydrogen peroxide (H2O2) has been widely reported as an effective agent for the control of cyanobacteria, being Microcystis aeruginosa one of the most studied species, very
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Identification of estrogen receptor target genes involved in gonadal feminization caused by estrogen in Xenopus laevis Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-21 Yuanyuan Li; Jinbo Li; Yanping Shen; Yiming Xiong; Xinghong Li; Zhanfen Qin
Estrogens and estrogenic endocrine disrupting chemicals can cause gonadal feminization in some vertebrates mainly through estrogen receptor (ER), but the underlying molecular mechanisms are unclear. The present study aimed to identify ER target genes involved in estrogen-caused gonadal feminization in Xenopus laevis. Based on our recent transcriptomic data that 10 nM 17β-estradiol (E2) altered gene
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Mixture effects of a fungicide and an antibiotic: assessment and prediction using a decomposer-detritivore system Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-21 Marco Konschak; Jochen P. Zubrod; Patrick Baudy; Patrick Fink; Sebastian Pietz; Tomás S. Duque A; Nikita Bakanov; Ralf Schulz; Mirco Bundschuh
Antimicrobials, such as fungicides and antibiotics, pose a risk for microbial decomposers (i.e., bacteria and aquatic fungi) and invertebrate detritivores (i.e., shredders) that play a pivotal role in the ecosystem function of leaf litter breakdown. Although waterborne toxicity and diet-related effects (i.e., dietary exposure and microorganism-mediated alterations in food quality for shredders) of
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Interactive effects of increased temperature and gadolinium pollution in Paracentrotus lividus sea urchin embryos: a climate change perspective Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-21 Chiara Martino; Maria Byrne; Maria Carmela Roccheri; Roberto Chiarelli
Gradual ocean warming and marine heatwaves represent major threats for marine organisms already facing other anthropogenic-derived hazards, such as chemical contamination in coastal areas. In this study, the combined effects of thermal stress and exposure to gadolinium (Gd), a metal used as a contrasting agent in medical imaging which enters the aquatic environment, were investigated in the embryos
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Synthetic and natural microfibers induce gut damage in the brine shrimp Artemia franciscana Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-19 Lia Kim; Sang A. Kim; Tae Hee Kim; Juhea Kim; Youn-Joo An
The increasing amount of microplastics in aquatic ecosystems is a significant environmental issue, with adverse effects on marine organisms including invertebrates and vertebrates. This study examined the effects of three types of microfibers on the brine shrimp Artemia franciscana as the test species. The brine shrimps were exposed to two commonly found synthetic microfibers (polypropylene and polyethylene
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Effects of maternal exposure to environmentally relevant concentrations of 17α-ethinyloestradiol in a live bearing freshwater fish, Xenotoca eiseni (Cyprinodontiformes, Goodeidae) Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-18 Simone M. Tinguely; Arthur David; Anke Lange; Charles R. Tyler
The viviparous teleost redtail splitfin (Xenotoca eiseni) is a live bearing fish that presents a novel freshwater model for investigating the effects of maternally derived micropollutants on vulnerable early developmental life stages. Here, adult female X. eiseni were exposed to 17α-ethinyloestradiol (EE2), a potent a contraceptive oestrogen, at environmentally relevant concentrations, to investigate
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Toxin accumulation, detoxification and oxidative stress in bivalve (Anomalocardia flexuosa) exposed to the dinoflagellate Prorocentrum lima Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-31 Isabel do Prado Leite; Leonardo Sandrini-Neto; Francisco Lagreze Squella; Thiago Pereira Alves; Mathias Alberto Schramm; Sabrina Loise de Morais Calado; Helena Cristina Silva de Assis; Luiz Laureno Mafra
Prorocentrum lima is a cosmopolitan benthic dinoflagellate capable of producing the diarrhetic shellfish toxins (DSTs) okadaic acid (OA) and dinophysistoxin (DTX). These compounds may cause oxidative stress and accumulate in bivalve tissues, which become vectors of intoxication to human consumers. We investigated DST accumulation, detoxification and oxidative stress biomarkers in clams (Anomalocardia
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Generation-specific and interactive effects of pesticide and antidepressant exposure in a fish model call for multi-stressor and multigenerational testing Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-08 Eli S.J. Thoré; Floor Van Hooreweghe; Charlotte Philippe; Luc Brendonck; Tom Pinceel
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Effects of salinity on the chronic toxicity of 4-methylbenzylidene camphor (4-MBC) in the marine copepod Tigriopus japonicus Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-09 Haizheng Hong; Jiaxin Wang; Dalin Shi
Organic ultraviolet filters are widely used in personal care products. 4-methylbenzylidene camphor (4-MBC) is one of the most frequently used UV filters. Due to its widespread usage 4-MBC has been detected at high concentrations in offshore waters. Previous toxicological studies have suggested that 4-MBC might induce much higher toxicity in marine organisms than freshwater species. To explore the effects
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Assessing effects of aromatase inhibition on fishes with group-synchronous oocyte development using western mosquitofish (Gambusia affinis) as a model Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-05 Jon A. Doering; Daniel L. Villeneuve; Charlene B. Tilton; Ashley R. Kittelson; Brett R. Blackwell; Michael D. Kahl; Kathleen M. Jensen; Shane T. Poole; Jenna E. Cavallin; Alexander R. Cole; Kendra N. Dean; Carlie A. LaLone; Gerald T. Ankley
Exposure to certain anthropogenic chemicals can inhibit the activity to cytochrome P450 aromatase (CYP19) in fishes leading to decreased plasma 17β-estradiol (E2), plasma vitellogenin (VTG), and egg production. Reproductive dysfunction resulting from exposure to aromatase inhibitors has been extensively investigated in several laboratory model species of fish. These model species have ovaries that
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Cadmium induced oxystress alters Nrf2-Keap1 signaling and triggers apoptosis in piscine head kidney macrophages Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-31 Chohelee Choudhury; Ritwik Mazumder; Rajeev Kumar; Bishal Dhar; Mahuya Sengupta
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Ocean acidification increases polyspermy of a broadcast spawning bivalve species by hampering membrane depolarization and cortical granule exocytosis Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-06 Yu Han; Wei Shi; Yu Tang; Xinguo Zhao; Xueying Du; Shuge Sun; Weishang Zhou; Guangxu Liu
Ensuring that oocytes are fertilized by a single sperm during broadcast spawning is crucial for the fertilization success of many marine invertebrates. Although the adverse impacts of ocean acidification (OA) on various marine species have been revealed in recent years, its impact on polyspermy and the underlying mechanisms involved remain largely unknown. Therefore, in the present study, the effect
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Dysregulation of lipid metabolism in PLHC-1 and ZFL cells exposed to tributyltin an all-trans retinoic acid Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-24 Anna Marqueño; Cintia Flores; Marta Casado; Cinta Porte
There is increasing awareness that exposure to endocrine disrupters interferes with lipid homeostasis in vertebrates, including fish. Many of these compounds exert their action by binding to nuclear receptors, such as peroxisome proliferator-activated receptors and retinoid X receptor. This work investigates the use of fish liver cells (PLHC-1 and ZFL cells) for the screening of metabolic and lipid
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Experimental evidence of physiological and behavioral effects of microplastic ingestion in Sparus aurata Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-05 Beatriz Rios-Fuster; Pablo Arechavala-Lopez; Karlos García-Marcos; Carme Alomar; Montserrat Compa; Elvira Álvarez; María Micaela Julià; Antònia Solomando Martí; Antoni Sureda; Salud Deudero
Increasing global research has identified microplastics (MPs) to be impacting marine organisms. The present work aimed at investigating the physiological and behavioral effects of thirty-six juvenile Sparus aurata exposed to control, virgin and weathered MPs enriched diets during a 21-day period under controlled conditions. Physiological effects were assessed in liver and brain using the following
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Identification, characterization and expression analyses of cholinesterases genes in Yesso scallop (Patinopecten yessoensis) reveal molecular function allocation in responses to ocean acidification Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-26 Qiang Xing; Huan Liao; Cheng Peng; Guiliang Zheng; Zujing Yang; Jing Wang; Wei Lu; Xiaoting Huang; Zhenmin Bao
Cholinesterases are key enzymes in central and peripheral cholinergic nerve system functioning on nerve impulse transmission in animals. Though cholinesterases have been identified in most vertebrates, the knowledge about the variable numbers and multiple functions of the genes is still quite meagre in invertebrates, especially in scallops. In this study, the complete cholinesterase (ChE) family members
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Environmental concentrations of copper nanoparticles affect vital functions in Ankistrodesmus densus Aquat. Toxicol. (IF 4.344) Pub Date : 2021-01-01 Daniela Mariano Barreto; Alessandra Emanuele Tonietto; Ana Teresa Lombardi
Nanoparticles (NPs) have unique properties, leading to their widespread application in industry, consequently increasing their concentration in aquatic ecosystems. Although environmentally significant concentrations are still low, they tend to increase because of the intense use, posing into risk microalgae communities. Microalgae are primary producers that support food chains in aquatic ecosystems;
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Chemicals associated with biodegradable microplastic drive the toxicity to the freshwater oligochaete Lumbriculus variegatus Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-24 Kristina Klein; Theresa Piana; Tim Lauschke; Peter Schweyen; Georg Dierkes; Thomas Ternes; Ulrike Schulte-Oehlmann; Jörg Oehlmann
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Eugenol induces body immobilization yet evoking an increased neuronal excitability in fish during short-term baths Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-24 Luis André L. Barbas; Marcelo Ferreira Torres; Brenda Maria P.A. da Costa; Maria Jhenneff Máximo Feitosa; Lucas Campos Maltez; Lílian Lund Amado; Ywa Perpetuo Socorro Toda; Paula dos Santos Batista; Diego Arthur Castro Cabral; Moisés Hamoy
Several studies have suggested eugenol as a suitable anaesthetic for fish. However, it has also been regarded as a toxic and aversive substance to several aquatic organisms, including fish. This study sought to assess the eugenol-induced behavioural alterations and its seizurogenic potential to fish. Moreover, a distinctive methodology for an in vivo evaluation of the brain activity was also presented
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Characterization of river biofilm responses to the exposure with heavy metals using a novel micro fluorometer biosensor Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-24 Carafa Roberta; Nora Exposito Lorenzo; Jordi Sierra Llopart; Vikas Kumar; Marta Schuhmacher
River biofilms are a suitable indicator of toxic stress in aquatic ecosystems commonly exposed to various anthropogenic pollutants from industrial, domestic, and agricultural sources. Among these pollutants, heavy metals are of particular concern as they are known to interfere with various physiological processes of river biofilm, directly or indirectly related to photosynthetic performance. Nevertheless
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Differential regulation of endoplasmic reticulum stress-induced autophagy and apoptosis in two strains of gibel carp (Carassius gibelio) exposed to acute waterborne cadmium Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-09 Hongyan Li; Wenjie Xu; Liyun Wu; Bo Dong; Junyan Jin; Dong Han; Xiaoming Zhu; Yunxia Yang; Haokun Liu; Shouqi Xie
Previous studies illustrated that gibel carp F strain displays better lipid mobilization and antioxidant ability and compared to the A strain. We therefore hypothesized that the F strain would exhibit superior defense to cadmium exposure. Comparative studies were conducted between A and F strains using plasma stress biomarkers, histological observations, and analysis of hepatic molecular events to
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Climate change and oil pollution: A dangerous cocktail for tropical zooplankton Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-07 Laura Hernández Ruiz; Bernard Ekumah; Delove Abraham Asiedu; Giovanna Albani; Emmanuel Acheampong; Sigrún H. Jónasdóttir; Marja Koski; Torkel Gissel Nielsen
Climate change and oil pollution pose a major threat to tropical marine ecosystems and to the coastal communities relying on their resources. The Gulf of Guinea is severely affected by multiple human induced stressors, but the potential impacts of these on marine productivity remain unknown. We investigated the combined effects of heatwaves (climate stressor) and the polycyclic aromatic hydrocarbon
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Bioavailability and impacts of estrogenic compounds from suspended sediment on rainbow trout (Oncorhynchus mykiss) Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-09 Anne-Katrin Müller; Nele Markert; Katharina Leser; David Kämpfer; Sabrina Schiwy; Carolin Riegraf; Sebastian Buchinger; Lin Gan; Ali T. Abdallah; Bernd Denecke; Helmut Segner; Markus Brinkmann; Sarah E. Crawford; Henner Hollert
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Exposure to estrogenic mixtures results in tissue-specific alterations to the metabolome of oysters Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-17 Rafiquel Islam; Steven D. Melvin; Richard Man Kit Yu; Wayne A. O’Connor; Thi Kim Anh Tran; Megan Andrew-Priestley; Frederic D.L. Leusch; Geoff R. MacFarlane
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Neurobehavioral, physiological and inflammatory impairments in response to bifenthrin intoxication in Oreochromis niloticus fish: Role of dietary supplementation with Petroselinum crispum essential oil Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-05 Mayada R. Farag; Hemat K. Mahmoud; Sabry A.A. El-Sayed; Sarah Y.A. Ahmed; Mahmoud Alagawany; Shimaa M. Abou-Zeid
This study was conceptualized in order to assess the 96-h LC50 of bifenthrin (BF) in O. niloticus and also to measure the biochemical, behavioral, and molecular responses of the fish suchronically exposed to a sub-lethal concentration of the insecticide. The role of Petroselinum crispum essential oil (PEO) supplementation in mitigating the resulted neurotoxic insult was also investigated. The acute
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Interplay between dietary lipids and cadmium exposure in rainbow trout liver: Influence on fatty acid metabolism, metal accumulation and stress response Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-30 Aline Ferain; Eva Delbecque; Ineke Neefs; Hélène Dailly; Nancy De Saeyer; Mélusine Van Larebeke; Valérie Cornet; Yvan Larondelle; Jean-François Rees; Patrick Kestemont; Karel A.C. De Schamphelaere; Cathy Debier
The present study aimed at investigating interactive effects between dietary lipids and both short- and long-term exposures to a low, environmentally realistic, cadmium (Cd) concentration. Juvenile rainbow trout were fed four isolipidic diets (31.7 g/kg) enriched in either linoleic acid (LA, 18:2n-6), alpha-linolenic acid (ALA, 18:3n-3), eicosapentaenoic acid (EPA, 20:5n-3) or docosahexaenoic acid
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The use of WHAM-FTOX, parameterized with laboratory data, to simulate zooplankton species richness in acid- and metal- contaminated lakes Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-05 E. Tipping; S. Lofts; W. Keller
The WHAM-FTOX model quantifies cation toxicity towards freshwater organisms, assuming an additive toxic response to the amounts of protons and metals accumulated by an organism. We combined a parameterization of the model, using data from multi-species laboratory toxicity tests, with a fitted field species sensitivity distribution, to simulate the species richness (nsp) of crustacean zooplankton in
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Functional responses of Hyalella meinerti after exposure to environmentally realistic concentrations of 2,4-D, fipronil, and vinasse (individually and in mixture) Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-04 Thandy Junio da Silva Pinto; Juliane Silberschmidt Freitas; Raquel Aparecida Moreira; Laís Conceição Menezes da Silva; Maria Paula Cardoso Yoshii; Laís Fernanda de Palma Lopes; Bianca Veloso Goulart; Marina Reghini Vanderlei; Danillo Badolato Athayde; Priscille Dreux Fraga; Allan Pretti Ogura; Luis Schiesari; Cassiana Carolina Montagner; Michiel Adriaan Daam; Evaldo Luiz Gaeta Espindola
Sugarcane crops management in Brazil includes the use of pesticides, as well as alternative organic fertilizers such as vinasse obtained from waste of the ethanol industry. In order to assess the effects of the environmental contamination generated by such sugarcane practices, this study was aimed to investigate the effects of the pesticides 2,4-Dichlorophenoxyacetic acid (2,4-D) and fipronil, as well
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Morphological plasticity in Chlamydomonas reinhardtii and acclimation to micropollutant stress Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-03 Giulia Cheloni; Vera I. Slaveykova
Phytoplankton are characterized by a great phenotypic plasticity and amazing morphological variability, both playing a primary role in the acclimation to changing environments. However, there is a knowledge gap concerning the role of algal morphological plasticity in stress responses and acclimation to micropollutants. The present study aims at examining palmelloid colony formation of the green alga
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Joint effects of naphthalene and microcystin-LR on physiological responses and toxin bioaccumulation of Landoltia punctata Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-04 Gui-Li Yang; Meng-Jun Huang; Ai-Juan Tan; Shi-Ming Lv
The co-contamination of naphthalene (NAP) and microcystin-LR (MC-LR) commonly occurs in eutrophic waters. However, the joint effects of NAP and MC-LR on plants in aquatic environments remain unknown. Landoltia punctata is characterized by high starch yields and high biomass in polluted waters and has been proven to be a bioenergy crop and phytoremediation plant. In this study, L. punctata was cultured
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Effect of environmentally relevant concentrations of potentially toxic microplastic on coastal copepods Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-03 Marja Koski; Jens Søndergaard; Anette Maria Christensen; Torkel Gissel Nielsen
Tire wear particles (TWP) are both abundant and potentially toxic types of microplastic (MP) in the coastal ocean. We tested the effects of TWP type (new tires, old tires, rubber granules from artificial turfs) and concentration (10–10,000 TWP L−1) on feeding, reproduction and fecal pellet production of two common coastal copepods at high (400 μg C L−1) and low (40 μg C L−1) food concentration consisting
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Proteomic analysis and biochemical alterations in marine mussel gills after exposure to the organophosphate flame retardant TDCPP Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-25 Paula Sánchez-Marín; Leticia Vidal-Liñán; Laura Emilia Fernández-González; Rosa Montes; Rosario Rodil; José Benito Quintana; Mónica Carrera; Jesús Mateos; Angel P. Diz; Ricardo Beiras
Organophosphate flame retardants (OPFRs) are (re-)emergent environmental pollutants increasingly being used because of the restriction of other flame retardants. The chlorinated OPFR, tris(1,3-dichloro-2-propyl) phosphate (TDCPP) is among those of highest environmental concern, but its potential effects in the marine environment have rarely been investigated. We exposed a widely used sentinel marine
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Low concentrations of oxazepam induce feeding and molecular changes in Radix balthica juveniles Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-25 Morgane Lebreton; Sacha Sire; Jean-Luc Carayon; Jean-Michel Malgouyres; Caroline Vignet; Florence Géret; Elsa Bonnafé
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Accumulation of paralytic shellfish toxins by Southern Rock lobster Jasus edwardsii causes minimal impact on lobster health Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-03 Alison Turnbull; Navreet Malhi; Andreas Seger; Jessica Jolley; Gustaaf Hallegraeff; Quinn Fitzgibbon
Recurrent dinoflagellate blooms of Alexandrium catenella expose the economically and ecologically important Southern Rock Lobster in Tasmania to paralytic shellfish toxins (PST), and it is unknown if PST accumulation adversely affects lobster performance, health and catchability. In a controlled aquaculture setting, lobsters were fed highly contaminated mussels to accumulate toxin levels in the hepatopancreas
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Acute aquatic toxicity of arsenic-based chemical warfare agents to Daphnia magna Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-25 Michał Czub; Jakub Nawała; Stanisław Popiel; Tomasz Brzeziński; Piotr Maszczyk; Hans Sanderson; Edmund Maser; Diana Gordon; Daniel Dziedzic; Barbara Dawidziuk; Joanna Pijanowska; Jacek Fabisiak; Marta Szubska; Thomas Lang; Paula Vanninen; Hanna Niemikoski; Tine Missiaen; Kari K. Lehtonen; Lech Kotwicki
Sea dumping of chemical warfare (CW) took place worldwide during the 20th century. Submerged CW included metal bombs and casings that have been exposed for 50–100 years of corrosion and are now known to be leaking. Therefore, the arsenic-based chemical warfare agents (CWAs), pose a potential threat to the marine ecosystems. The aim of this research was to support a need for real-data measurements for
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Characterizing transcriptomic responses of southern flounder (Paralichthys lethostigma) chronically exposed to Deepwater Horizon oiled sediments Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-07 Maria L. Rodgers; Tracy A. Sherwood; Andrea M. Tarnecki; Robert J. Griffitt; Dana L. Wetzel
To obtain a deeper understanding of the transcriptomic responses to oil in southern flounder (Paralichthys lethostigma), we performed quantitative PCR and RNA sequencing on liver and gill tissue after a chronic exposure (35 days) to Deepwater Horizon crude oiled sediment and after a 30-day recovery period. We wanted to understand which specific genes are differentially expressed in liver and gill tissues
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Hepatobiliary PAHs and prevalence of pathological changes in Red Snapper Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-07 Erin L. Pulster; Susan Fogelson; Brigid E. Carr; Justin Mrowicki; Steven A. Murawski
Red Snapper (Lutjanus campechanus) were collected throughout the Gulf of Mexico (GoM) from 2011 to 2017 and analyzed for biliary (n = 496) fluorescent aromatic compounds (FACs), hepatic (n = 297) polycyclic aromatic hydrocarbons (PAHs) and microscopic hepatobiliary changes (MHC, n = 152). Gross and histological evaluations were conducted with liver tissues to identify and characterize pathological
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Chronic exposure to environmental cadmium affects growth and survival, cellular stress, and glucose metabolism in juvenile channel catfish (Ictalurus punctatus) Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-02 Jenny S. Paul; Brian C. Small
Anthropogenic activities have led to the enrichment of cadmium in freshwater systems where it is a contaminant of concern for fisheries and aquaculture as it has no known biological function and is toxic at trace concentrations. Yet, knowledge gaps remain regarding effects of chronic exposure to environmentally relevant concentrations on freshwater fish. Thus, the objectives of the current study were
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Diclofenac and atrazine restrict the growth of a synchronous Chlamydomonas reinhardtii population via various mechanisms Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-23 Darya Harshkova; Monika Majewska; Wojciech Pokora; Agnieszka Baścik-Remisiewicz; Szymon Tułodziecki; Anna Aksmann
Non-steroidal anti-inflammatory drug diclofenac (DCF) is commonly found in freshwater bodies and can have adverse effects on non-target organisms. Among the studies on DCF toxicity, several ones have reported its harmful effects on plants and algae. To gain a better understanding of the mechanisms of DCF toxicity towards green algae, we used a synchronous Chlamydomonas reinhardtii cc-1690 culture and
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Photoprotection and antioxidative metabolism in Ulva lactuca exposed to coastal oceanic acidification scenarios in the presence of Irgarol Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-06 Gabriela Tavares Sousa; Milton C. Lima Neto; Rodrigo Brasil Choueri; Ítalo Braga Castro
Anthropogenic changes such as ocean acidification, eutrophication, and the release of hazardous chemicals affect coastal environments and aquatic organisms. We investigated the effects of seawater pH (7.4 and 8.2) isolated and in combination with Irgarol on Ulva lactuca. Stress indicators such as membrane damage, lipid peroxidation, and hydrogen peroxide content were assessed. In addition, chlorophyll
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Detecting the effects of chronic metal exposure on benthic systems: Importance of biomarker and endpoint selection Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-24 Gordon J. Watson; Jennifer M. Pini; Jonathan Richir; Laura A. Michie
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Toxicological effects induced by the biocide triclosan on Pseudokirchneriella subcapitata Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-02 Manuela D. Machado; Eduardo V. Soares
Triclosan, a widely used biocide broadly found in aquatic environments, is cause of concern due to its unknown effects on non-targets organisms. In this study, a multi biomarker approach was used in order to evaluate the 72 h-effect of triclosan on the freshwater alga Pseudokirchneriella subcapitata (Raphidocelis subcapitata). Triclosan, at environmental relevant concentrations (27 and 37 μg L−1),
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Effects of an hypersaline effluent from an abandoned potash mine on freshwater biofilm and diatom communities Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-02 Lidia Vendrell-Puigmitja; Laia Llenas; Lorenzo Proia; Sergio Ponsa; Carmen Espinosa; Soizic Morin; Meritxell Abril
Potash abandoned mines cause severe environmental damage to their bordering environment, with significant impacts on freshwater ecosystems mostly through uncontrolled discharge of hypersaline effluents. This study aimed to evaluate the ecological impact caused by a hypersaline effluent from an abandoned potash mine (Menteroda, Germany) on freshwater biofilms and, specifically, on diatom communities
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Probabilistic environmental risk assessment of microplastics in marine habitats Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-25 Véronique Adam; Alex von Wyl; Bernd Nowack
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Influence of environmentally relevant concentrations of Zn, Cd and Ni and their binary mixtures on metal uptake, bioaccumulation and development in larvae of the purple sea urchin Strongylocentrotus purpuratus Aquat. Toxicol. (IF 4.344) Pub Date : 2020-12-03 Lygia S. Nogueira; Fabíola Xochilt Valdez Domingos-Moreira; Roberta Daniele Klein; Adalto Bianchini; Chris M. Wood
Metal accumulation, disturbance of Ca2+ homeostasis, and occurrence of abnormalities are well-established consequences of single metal exposure during early development stages of sea urchins. However, the effects caused by low concentrations of metals and metal mixtures need to be better understood in marine invertebrates. Therefore, the present study investigated the effects of environmentally relevant
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Effect of reproduction cycle stage on energy metabolism responses in a sentinel species (Dreissena polymorpha) exposed to cadmium: What consequences for biomonitoring? Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-22 Fanny Louis; Laurence Delahaut; Véronique Gaillet; Isabelle Bonnard; Séverine Paris-Palacios; Elise David
Metal trace elements such as cadmium (Cd) are commonly present in ecosystems and could lead to impairment of mitochondrial functions and energy imbalance in aquatic organisms including molluscs. Combined exposure to increasing temperatures and Cd could enhance such an impact on animals. Seasonal fluctuations, such as temperature, and the corresponding reproduction cycle can affect biomarker responses
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Comparative transcriptome reveals the response of oriental river prawn (Macrobrachium nipponense) to sulfide toxicity at molecular level Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-28 Peng Zhu; Hui Wang; Qifan Zeng
Aquatic environmental pollutants have various impacts on aquaculture. Specifically, sulfide has been established as being toxic to aquatic animals including the oriental river prawn Macrobrachium nipponense. In response, the hepatopancreas has been broadly studied, as it plays a pivotal role in arthropod nutrient digestion and absorption, energy supply, and organ development as well as in crustacean
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Neurobehavioral and immune-toxic impairments induced by organic methyl mercury dietary exposure in Nile tilapia Oreochromis niloticus Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-22 Ehsan H. Abu Zeid; Bouthaina A. Khalifa; Enas N. Said; Ahmed H. Arisha; Rasha M. Reda
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Impact of chronic exposure of rainbow trout, Oncorhynchus mykiss, to low doses of glyphosate or glyphosate-based herbicides Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-26 Jessy Le Du-Carrée; Thierry Morin; Morgane Danion
Glyphosate is an herbicidal active substance (AS) entering in the composition of a large diversity of pesticide products (glyphosate-based herbicides; GBH) used in modern intensive agriculture. This compound has a favorable environmental safety profile but was suspected to induce deleterious effects in aquatic organisms, with a potential effect of some associated co-formulants. This study aimed to
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Toxin- and species-dependent regulation of ATP-binding cassette (ABC) transporters in scallops after exposure to paralytic shellfish toxin-producing dinoflagellates Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-23 Huizhen Wang; Shiqi Liu; Xiaogang Xun; Moli Li; Jiarun Lou; Yihan Zhang; Jiaoxia Shi; Jingjie Hu; Zhenmin Bao; Xiaoli Hu
ATP-binding cassette (ABC) transporters are membrane-bound proteins involved in exporting various xenobiotic compounds from living cells. Bivalve mollusks can accumulate large amounts of paralytic shellfish toxins (PSTs) from marine dinoflagellates. For aquatic invertebrates, the importance of ABC proteins in multi-xenobiotic resistance has been demonstrated, however, the systematic identification
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Binding properties to nicotinic acetylcholine receptors can explain differential toxicity of neonicotinoid insecticides in Chironomidae Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-23 E.M. Maloney; E. Taillebois; N. Gilles; C.A. Morrissey; K. Liber; D. Servent; S.H. Thany
Neonicotinoids are neuroactive insecticides commonly detected in freshwater ecosystems. Recent studies have indicated that these compounds are markedly toxic to Chironomidae, a widespread family of ecologically important aquatic insects. However, despite their sensitivity, the pharmacological mechanisms driving neonicotinoid toxicity have yet to be characterized in these insect species. Here, we used
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Vincristine exposure impairs skin keratinocytes, ionocytes, and lateral-line hair cells in developing zebrafish embryos Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-24 Giun-Yi Hung; Po-Yen Chen; Jiun-Lin Horng; Li-Yih Lin
Environmental contamination by anticancer pharmaceuticals has been widely reported. These drugs are not readily biodegradable, and their parent compounds and/or metabolites have been detected in surface waters and groundwater throughout the world. Adverse effects of anticancer drugs occur frequently in cancer patients, and a large body of clinical knowledge has accumulated. However, the effects of
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Differential effect of silver nanoparticles on the microbiome of adult and developing planaria Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-02 Karolien Bijnens; Sofie Thijs; Nathalie Leynen; Vincent Stevens; Breanne McAmmond; Jonathan Van Hamme; Jaco Vangronsveld; Tom Artois; Karen Smeets
Silver nanoparticles (AgNPs) are widely incorporated in household, consumer and medical products. Their unintentional release via wastewaters raises concerns on their environmental impact, particularly for aquatic organisms and their associated bacterial communities. It is known that the microbiome plays an important role in its host’s health and physiology, e.g. by producing essential nutrients and
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Effects of triclosan on the RedoximiRs/Sirtuin/Nrf2/ARE signaling pathway in mosquitofish (Gambusia affinis) Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-11 Shuang Bao; Cuiping He; Peijia Ku; Meinan Xie; Jiawei Lin; Songhui Lu; Xiangping Nie
Triclosan (TCS) has been widely used in daily life for its broad-spectrum antibacterial property and subsequently detected frequently in aquatic waterborne. Environmental relevant concentrations of TCS in water (ng-μg/L) may pose potential unexpected impact on non-target aquatic organisms. In the present work, we investigated the transcriptional responses of Nrf2 as well as its downstream genes, sirtuins
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Can ocean warming alter sub-lethal effects of antiepileptic and antihistaminic pharmaceuticals in marine bivalves? Aquat. Toxicol. (IF 4.344) Pub Date : 2020-11-02 Ângela Almeida; Vânia Calisto; Valdemar I. Esteves; Rudolf J. Schneider; Etelvina Figueira; Amadeu M.V.M. Soares; Rosa Freitas
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