Development of a short-term chronic toxicity test with a tropical mysid

Figueirêdo, Lívia Pitombeira de; Nilin, Jeamylle; Silva, Allyson Queiroz da; Loureiro, Susana; Costa-Lotufo, Letı́cia V.

doi:10.1016/j.marpolbul.2016.03.020

Cited by 16 publications

(7 citation statements)

References 17 publications

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“…The test validation criteria were based on the survival of the control, which should be over 90%, and the sensitivity to zinc as reference substance of known toxicity (ABNT 2011). Tests carried out with the Zinc sulfate heptahydrate showed an average value of LC 50 0.37 ± 0.01 mg•L -1 , which is within the acceptable limits and therefore validate our subsequent tests with DZP (Badaró-Pedroso et al 2002, ABNT 2011, Figueirêdo et al 2016.…”

Section: Methodssupporting

confidence: 79%

“…At the end of the experiment the body length and dry weight of all mysids from each exposure concentration and control were measured. The body length (from the head to the end of the last segment) was measured under a stereoscopic microscope as described by Figueirêdo et al (2016). To obtain weight measurements, the mysids were dried at 60°C for 24 hours in an oven, and then weighed in an analytical balance (0.00001g).…”

Section: Methodsmentioning

confidence: 99%

“…To obtain weight measurements, the mysids were dried at 60°C for 24 hours in an oven, and then weighed in an analytical balance (0.00001g). The test validation criteria were based on the previous paper on the development of the short-term chronic toxicity test with M. juniae published by Figueirêdo et al (2016), including survival in the control of over 80%.…”

Section: Methodsmentioning

confidence: 99%

“…This species has been used in ecotoxicological tests because of its ecological importance to the structure of the aquatic food web and its higher sensitivity to a wide range of xenobiotics than other test organisms (Verslycke et al 2004, Bif et al 2013, Gurgel et al 2016, Silva et al 2017, Nilin et al 2019. In Brazil, the Brazilian Association of Technical Standards has standardized an acute toxicity test for M. juniae (ABNT 2011) and other studies have indicated that this species is a good candidate for chronic toxicity testing (Figueirêdo et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the aim of the present study was to investigate the effects of diazepam on the survival and growth of the mysid M. juniae. We performed two tests: 1) an acute toxicity test to assess survival based on the standard from ABNT (2011) and 2) a chronic toxicity test, based on the protocol developed by Figueirêdo et al (2016), where survival, weight and length were assessed.…”

Section: Introductionmentioning

confidence: 99%

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Acute and chronic toxicity of the benzodiazepine diazepam to the tropical crustacean Mysidopsis juniae

Silva

Nilin

Loureiro

et al. 2020

An. Acad. Bras. Ciênc.

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Pharmaceuticals occur in the environment due to their excessive consumption and the inefficiency of treatment plants to degrade, inactivate or remove them. Diazepam (DZP) stands out as the most consumed benzodiazepine, and induces sedative effects and reduces anxiety. Considering its potential appearance in several environmental compartments, the aim of the present study was to determine the effects of DZP under acute and chronic exposures on the mysid Mysidopsis juniae. Mortality was assessed using an acute toxicity test and a LC 50 of 3.7 ± 0.5 mg•L-1 was derived. The mass and length of the mysids was recorded in the chronic exposure to test for sublethal effects, and concentrations of 0.25 and 0.5 mg•L-1 of DZP affected mysids length and dry weight, respectively. Although effect-inducing concentrations used in this study are above environmentally relevant levels, the present study adds value to the limited available data for DZP toxicity to marine organisms, and we have shown that M. juniae is the most sensitive marine crustacean species tested thus far.

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Section: Methodssupporting

confidence: 79%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Acute and chronic toxicity of the benzodiazepine diazepam to the tropical crustacean Mysidopsis juniae

Silva

Nilin

Loureiro

et al. 2020

An. Acad. Bras. Ciênc.

Self Cite

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Chronic Toxicity of Per‐ and Polyfluoroalkyl Substance–Free Firefighting Foams to Aquatic Organisms

Fuller,

Suski,

Lanasa

et al. 2024

Enviro Toxic and Chemistry

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Amid global concern regarding the health and environmental impacts of per‐ and polyfluoroalkyl substances (PFAS), there is an urgent need to develop and implement alternative products without PFAS. Consequently, PFAS‐free firefighting foams used for fire suppression have been developed for use in military and residential settings. To facilitate the selection of lower‐risk PFAS‐free foams, the present study focused on the chronic toxicity of seven PFAS‐free and one PFAS‐containing foam to six aquatic species. Target species included two cladocerans, Daphnia magna and Ceriodaphnia dubia; the chironomid Chironomus dilutus; the mysid Americamysis bahia; and two fish species, Pimephales promelas and Cyprinodon variegatus, with endpoints including growth, development, reproduction, and survival. To facilitate comparison and product toxicity rankings, effective concentrations (20%, 50%) and no‐ and lowest‐observed‐effect concentrations (NOECs and LOECs, respectively) were calculated. Effective concentrations, NOECs, and LOECs varied by over an order of magnitude among foams and species, with several of the PFAS‐free formulations ranked as highly toxic based on US Environmental Protection Agency alternatives assessment hazard criteria. Overall, the PFAS‐free foams were found to exhibit either similar or greater toxicity compared to the PFAS‐containing reference foam across several species and endpoints. Nonmonotonic and hormetic dose responses were observed in D. magna for several of the tested foams, with increased reproduction and growth at intermediate exposures. Generally, tested foam toxicity rankings were consistent with a related acute toxicity study using the same species and formulations, and other research using soil invertebrates. Combined with related efforts for other taxa including mammals, birds, and plants, the present research will facilitate the selection of appropriate PFAS‐free firefighting foams that minimize harm to the environment. Environ Toxicol Chem 2024;00:1–19. © 2024 SETAC

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Agro-industrial Wastes: Environmental Toxicology, Risks, and Biological Treatment Approaches

Vilar

Cruz

Torres³

et al. 2019

Microorganisms for Sustainability

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Development of a short-term chronic toxicity test with a tropical mysid

Cited by 16 publications

References 17 publications

Acute and chronic toxicity of the benzodiazepine diazepam to the tropical crustacean Mysidopsis juniae

Acute and chronic toxicity of the benzodiazepine diazepam to the tropical crustacean Mysidopsis juniae

Chronic Toxicity of Per‐ and Polyfluoroalkyl Substance–Free Firefighting Foams to Aquatic Organisms

Agro-industrial Wastes: Environmental Toxicology, Risks, and Biological Treatment Approaches

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