Use of hydra for chronic toxicity assessment of waters intended for human consumption

Arkhipchuk, V. V.; Blaise, C.

doi:10.1016/j.envpol.2005.10.012

Cited by 33 publications

(27 citation statements)

References 33 publications

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“…Arkhipchuk et al (2006) also reported that H. attenuata could be successfully used for toxicity assessment of treated waters destined for human consumption.…”

Section: Toxicity Tests and Data Analysismentioning

confidence: 99%

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

Monteiro¹,

Silva²,

Messias³

et al. 2014

Rev. ambiente água

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Physicochemical and ecotoxicological measurements were employed to appraise the water quality of the Corumbataí River raw water (RW) intake, and that of its filtered (FW) and treated (TW) waters, processed by the Water Treatment Plant (WTP) of Piracicaba (SP, Brazil) during 2010. Some herbicides: ametrine, atrazine, simazine and tebuthiuron, were measured, with levels ranging from 0.01 to 10.3 µg L -1 . These were lower than those required to produce ecotoxicological effects to aquatic life based on published literature. Similarly, trihalomethanes, such as chloroform and bromodichloromethane produced as a result of the WTP process were also shown to be present in concentrations that would neither harm environmental nor human health. Elevated free chlorine concentrations found in FW and TW were credibly responsible for toxicity effects observed in algae and daphnids. (Pseudokirchneriella subcapitata and Daphnia magna). In contrast, results of toxicity testing conducted with Hydra attenuata suggested that this organism is resistant to free chorine and could be used for drinking water evaluations. Coupling bioassays with chemical analyses proved valuable to uncover putative cause-effect relationships existing between physical, chemical and toxic results, as well as in optimizing data interpretation of water quality.Keywords: herbicides residues, trihalomethanes, drinking water.Avaliações químicas e ecotoxicológicas em amostras de água antes e após serem processadas por uma Estação de Tratamento RESUMOAvaliações físico-químicas e ecotoxicológicas foram utilizadas para avaliar a qualidade de amostras da água do rio Corumbataí, água bruta (RW), filtrada (FW) e tratada (TW), 7Chemical and ecotoxicological assessments of water samples … Rev. Ambient. Água vol. 9 n. 1 Taubaté -Jan. / Mar. 2014 processadas pela Estação de Tratamento de Água (ETA) de Piracicaba (SP, Brasil), em 2010. Alguns resíduos de herbicidas, tais como: ametrina, atrazina, simazina e tebutiuron, foram medidos encontrando níveis entre 0,01-10,3 µg L -1 sendo esses menores do que os necessários para produzir efeitos ecotóxicos à vida aquática, com base na literatura publicada. Da mesma forma, trihalometanos, tais como: clorofórmio e bromodiclorometano produzido como resultados do processo da ETA foram também encontrados em concentrações que não prejudicam a saúde ambiental ou humana. Concentrações de cloro livre elevadas foram encontradas nas amostras de água FW e TW e foram os prováveis responsáveis pelos efeitos de toxicidade observados em algas e dáfnias (Pseudokirchneriella subcapitata, Daphnia magna). Por outro lado, resultados dos testes de toxicidade realizados com Hydra attenuata mostraram que este organismo é resistente a água clorado sendo um organismo potencial a ser utilizado para avaliações ecotoxicológicas em águas tratadas. Testes de toxicidade simultâneos com análises químicas revelaram úteis para descobrir relações de causa-efeito existentes entre supostos resultados tóxicos, físicos e químicos e, assim como na melhora de interp...

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“…Arkhipchuk et al (2006) also reported that H. attenuata could be successfully used for toxicity assessment of treated waters destined for human consumption.…”

Section: Toxicity Tests and Data Analysismentioning

confidence: 99%

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

Monteiro¹,

Silva²,

Messias³

et al. 2014

Rev. ambiente água

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“…A Daphnia stock solution (also known as Daphnia medium) was prepared and used for both cultures (Truter, 1994). Although previous studies utilised a Hydra medium for culturing Hydra (Blaise and Beach and Pascoe, 1998;Holdway, 2005;Arkhipchuk et al, 2006), better culturing success was achieved for this study using the Daphnia medium (Truter 1994). The Daphnia cultures were kept in 3 L glass beakers and fed YTC (a suspension of commercial yeast, trout pellets and cerophyll) 3 times a week (Truter, 1994;U.S.…”

Section: Methodsmentioning

confidence: 97%

“…Acute toxicity tests are conducted over a maximum of 96 h with the only endpoint being survival/mortality. Hydra chronic toxicity tests can be conducted over a period 18-21 days and take into account survival, morphological changes and reproductive capacity (Arkhipchuk et al, 2006). Another test procedure, the Hydra reproduction test, occurs over 7 days and evaluates survival and population growth (Holdway, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Globally, Hydra species have been used extensively for toxicity testing, i.e., assessing the toxicity of: pharmaceuticals (Pascoe et al, 2003;Quinn et al, 2008a;Quinn et al, 2008b;Quinn et al, 2009), bottled drinking waters (Arkhipchuk et al, 2006), chemicals such as glycol ethers (Bowden et al, 1995), Endosulfan (Pollino and Holdway, 1999), industrial effluents (Blaise and Kusui, 1997) and waste waters (Pardos et al 1999), and metals (Beach and Pascoe, 1998;Pollino and Holdway, 1999;Pascoe, 2000, Karntanut andPascoe 2002;Karntanut and Pascoe, 2005). Hydra species commonly used are H. viridissima, H. vulgaris, H. attenuata H. oligactis and H. pseudoligactis (Bell and Wolfe, 1985;Blaise and Kusui, 1997;Fukuhori et al, 2005;Holdway, 2005).…”

Section: Introductionmentioning

confidence: 99%

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A comparison between <i>Daphnia pulex</i> and <i>Hydra vulgaris</i> as possible test organisms for agricultural run-off and acid mine drainage toxicity assessments

Singh

Nel

2017

WSA

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“…Up to 20 individuals of green algae can be found in one cell (Holstein & Emschermann, 1995). It is belived that hydra can be a suitable experimental animal for establishing the lethal and sublethal doses of toxicants as well as explaining the effects of pollutants on freshwater systems (Arkhipchuk, Blaise, & Malinovskaya, 2005;Beach & Pascoe, 1998;Kalafatić & Kopjar, 1994;). …”

Section: Introductionmentioning

confidence: 99%

Effects of Quercetin on the Green Hydra (Hydra viridissima Pallas, 1766)

Kovačević¹,

Matulić²

2013

IJB

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Effects of quercetin on the green hydra, Hydra viridissima Pallas, and its endosymbiotic alga were studied under laboratory conditions. Quercetin is the most studied flavonoid known for its ability to act as an antioxidant, but it can also show a pro-oxidative effect. Green hydras were treated with four concentrations of quercetin (0.12 g/L, 0.2 g/L, 0.25 g/L and 0.3 g/L) for three days and compared to the control group of animals. Through the use of light microscopy, morphometry and macroscopic observations the results showed morphological changes in the hydra body as well as behavioral changes: depigmentation, migration, deformation, disordered locomotion, diminished reactions to mechanical stimuli and mortality. Further, different histopathological changes in the hydra body were detected. Different changes were monitored in the endosymbiotic alga: cell viability, division, shape and size of cells and chloroplasts, the level of damage and intensity of green color. Based on our results, the most important conclusion is that quercetin has a possible pro-oxidative effect on the green hydra.

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Use of hydra for chronic toxicity assessment of waters intended for human consumption

Cited by 33 publications

References 33 publications

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

A comparison between <i>Daphnia pulex</i> and <i>Hydra vulgaris</i> as possible test organisms for agricultural run-off and acid mine drainage toxicity assessments

Effects of Quercetin on the Green Hydra (Hydra viridissima Pallas, 1766)

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