Freshwater neotropical oligochaetes as native test species for the toxicity evaluation of cadmium, mercury and their mixtures

Neto, Antônio José Gazonato; Moreira, Raquel Aparecida; Lima, Júlio César dos Santos; Daam, Michiel A.

doi:10.1007/s10646-018-2006-5

Cited by 15 publications

(5 citation statements)

References 51 publications

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“…Oligochaetes are commonly used in ecotoxicological studies due to their abundance, cosmopolitanism, and ability to accumulate toxic substances such as metals (Helling, Reinecke & Reinecke, 2000; Corbi, Guilherme & Regiane, 2015; Gomes et al ., 2017). The most common species used in toxicological studies are Pristina leidyi , Branchiura sowerbyi , Lumbriculus variegatus , Tubifex tubifex , and Allonais inaequalis (Lobo et al ., 2016; Hurley, Jamie & James, 2017; Neto et al ., 2019, Felipe et al ., 2020). L. variegatus , T. tubifex and A. inaequalis are the most widely used species for evaluating toxic effects caused by MPs and MWCNTs (Castro et al ., 2020; Scopetani et al ., 2020; Silva et al ., 2021).…”

Section: Key Aquatic Invertebrates In Standardised Aquatic Ecotoxicol...mentioning

confidence: 99%

A broad‐taxa approach as an important concept in ecotoxicological studies and pollution monitoring

Rosner,

Ballarin,

Barnay‐Verdier

et al. 2023

Biological Reviews

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Aquatic invertebrates play a pivotal role in (eco)toxicological assessments because they offer ethical, cost‐effective and repeatable testing options. Additionally, their significance in the food chain and their ability to represent diverse aquatic ecosystems make them valuable subjects for (eco)toxicological studies. To ensure consistency and comparability across studies, international (eco)toxicology guidelines have been used to establish standardised methods and protocols for data collection, analysis and interpretation. However, the current standardised protocols primarily focus on a limited number of aquatic invertebrate species, mainly from Arthropoda, Mollusca and Annelida. These protocols are suitable for basic toxicity screening, effectively assessing the immediate and severe effects of toxic substances on organisms. For more comprehensive and ecologically relevant assessments, particularly those addressing long‐term effects and ecosystem‐wide impacts, we recommended the use of a broader diversity of species, since the present choice of taxa exacerbates the limited scope of basic ecotoxicological studies.This review provides a comprehensive overview of (eco)toxicological studies, focusing on major aquatic invertebrate taxa and how they are used to assess the impact of chemicals in diverse aquatic environments. The present work supports the use of a broad‐taxa approach in basic environmental assessments, as it better represents the natural populations inhabiting various ecosystems. Advances in omics and other biochemical and computational techniques make the broad‐taxa approach more feasible, enabling mechanistic studies on non‐model organisms. By combining these approaches with in vitro techniques together with the broad‐taxa approach, researchers can gain insights into less‐explored impacts of pollution, such as changes in population diversity, the development of tolerance and transgenerational inheritance of pollution responses, the impact on organism phenotypic plasticity, biological invasion outcomes, social behaviour changes, metabolome changes, regeneration phenomena, disease susceptibility and tissue pathologies. This review also emphasises the need for harmonised data‐reporting standards and minimum annotation checklists to ensure that research results are findable, accessible, interoperable and reusable (FAIR), maximising the use and reusability of data. The ultimate goal is to encourage integrated and holistic problem‐focused collaboration between diverse scientific disciplines, international standardisation organisations and decision‐making bodies, with a focus on transdisciplinary knowledge co‐production for the One‐Health approach.

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Section: Key Aquatic Invertebrates In Standardised Aquatic Ecotoxicol...mentioning

confidence: 99%

A broad‐taxa approach as an important concept in ecotoxicological studies and pollution monitoring

Rosner,

Ballarin,

Barnay‐Verdier

et al. 2023

Biological Reviews

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“…Allonais is a free‐living genus of the Naididae family that has a wide swimming capacity and occupation of the water column, ranging from sediments to the surfaces of aquatic plants (da Alves & Gorni, 2007; Erséus et al, 2017); the distribution of the Allonais inaequalis is geographically wide in the southern hemisphere (Howmiller, 1974). Oligochaetes species in ecotoxicological studies, such as the Naididae A. inaequalis , is promising for assessing the effects of emerging pollutants in the aquatic ecosystem (Corbi et al, 2015; Neto et al, 2019; Castro et al, 2020; Felipe et al, 2020). However, research related to the toxic effects of antibiotics on oligochaetes is incipient, mainly related to the reproduction and behavior of these animals.…”

Section: Introductionmentioning

confidence: 99%

Long‐term exposure of Allonais inaequalis to a mixture of antibiotics in freshwater and synthetic wastewater matrices: Reproduction, recovery, and swimming responses

Castro,

Alexandre,

Bernegossi

et al. 2024

Water Environment Research

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Antibiotics from sulfonamide, fluoroquinolone, and diaminopyrimidine classes are widely used in human and veterinary medicine, and their combined occurrence in the aquatic environment is increasing around the world. In parallel, the understanding of how mixtures of these compounds affect non‐target species from tropical freshwaters is scarce. Thus, this work aimed to study the long‐term reproductive, recovery, and swimming effects of mixtures of 12 antibiotics from three different classes (up to 10 μg L−1) added to freshwater (FWM) and synthetic wastewater (SWM) matrices on freshwater worm Allonais inaequalis. Results revealed that at the reproduction level, the exposure to antibiotics in the SWM matrix does not cause a significant toxic effect on species after 10 days. On the other hand, exposures to initial dose mixtures (10 μg L−1 each) in FWM caused a significant reduction of offspring by 19.2%. In addition, recovery bioassays (10 days in an antibiotic‐free environment) suggested that A. inaequalis has reduced offspring production due to previous exposure to antibiotic mixtures in both matrices. Furthermore, despite slight variation in swimming speed over treatments, no significant differences were pointed out. Regarding antibiotics in the water matrices after 10‐day exposures, the highest concentrations were up to 2.7, 7.8, and 4.2 μg L−1 for antibiotics from sulfonamide, fluoroquinolone, and diaminopyrimidine classes, respectively. These findings suggest that a species positioned between primary producers and secondary consumers may experience late reproductive damage even in an antibiotic‐free zone, after previous 10‐day exposure to antibiotic mixtures.Practitioner Points A mixture of sulfonamide, fluoroquinolone, and diaminopyrimidine antibiotics in freshwater affects the offspring production of A. inaequalis after 10 days. After the 10‐day antibiotic exposure, the reproduction of A. inaequalis remains affected in an antibiotic‐free environment over the recovery period. The swimming speed of the worms does not change after 10 days of exposure to the antibiotic mixture. The concentration of dissolved solids can limit the natural degradation of sulfonamide, fluoroquinolone, and diaminopyrimidine antibiotics in the aquatic environment.

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“…The joint action of toxicants in a mixture could result in an additive effect, where the combined effect of the toxicants is equal to the sum of their individual effects; antagonism, where one toxicant mitigates the effect of another toxiciant; or even synergisim or potentiation, where the combined effect is higher than the sum of individual effects (Castelhano Gebara et al, 2021; Gazonato Neto et al, 2019; Gopalapillai & Hale, 2015). To better understand and predict the toxicity of a mixture, the emperical toxicity can be compared to models that are based on the toxicity of each individual toxicant.…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of Copper–Silver Mixtures at the Intestinal Epithelium of Rainbow Trout: An In Vitro Approach

Ibrahim,

Belden,

Minghetti

2023

Enviro Toxic and Chemistry

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While metals are present in mixture in the environment, metal toxicity studies are usually conducted on an individual metal basis. There is a paucity of data in the existing literature regarding specific metal‐metal interactions and their effect on metal toxicity and bioavailability. Here, we studied interactions of silver‐copper mixture at the intestinal epithelium using an intestinal cell line derived from rainbow trout (Oncorhynchus mykiss), the RTgutGC. Exposures were conducted in media containing different chloride concentrations (low chloride, 1 mM and high chloride, 146 mM) thus resulting in different metal speciation. Cytotoxicity was evaluated based on two endpoints, cell metabolic activity and cell membrane integrity. Silver‐copper mixture toxicity was assessed using two designs: the independent action (IA) and concentration addition (CA). Metal mixture bioavailability was studied by exposing cells to 500 nM of Ag or Cu in single or mixture exposure (i.e., 500 nM of Cu plus 500 nM of Ag). We found an antagonistic effect in the low chloride medium and an additive/synergistic effect in the high chloride medium. We found that copper (Cu) dominates over silver (Ag) toxicity and bioavailability indicating a competitive inhibition when both metals are present as free metal ions in the exposure media which support our hypothesis. Our study also suggests different mechanisms of uptake of free metal ions and metal complexes. This study adds valuable information to our understanding of the role of metal speciation on metal mixture toxicity and bioavailability.

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Freshwater neotropical oligochaetes as native test species for the toxicity evaluation of cadmium, mercury and their mixtures

Cited by 15 publications

References 51 publications

A broad‐taxa approach as an important concept in ecotoxicological studies and pollution monitoring

A broad‐taxa approach as an important concept in ecotoxicological studies and pollution monitoring

Long‐term exposure of Allonais inaequalis to a mixture of antibiotics in freshwater and synthetic wastewater matrices: Reproduction, recovery, and swimming responses

Interactive Effects of Copper–Silver Mixtures at the Intestinal Epithelium of Rainbow Trout: An In Vitro Approach

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