Deltamethrin Multifactorial Activity toward Carp Larva Mobility Related to Calcium, Humic Acids, and pH

Ghillebaert, François; Prodorutti, Didier; Chaillou, Catherine; Roubaud, P

doi:10.1006/eesa.1996.0110

Cited by 4 publications

(6 citation statements)

References 30 publications

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“…1) was in agreement with the immediate detoxicant effect observed with humic acids. Among fishes, a similar protective effect of humic acids was observed on carp larva [33] and, with other toxicants, on diverse developmental stages of different fish species [35–37]. However, the Aldrich humic acids used in our study are not representative of most of the humic acids present in an aquatic medium because their binding affinities and capacities are quite different from those in many natural waters [38].…”

Section: Discussionmentioning

confidence: 60%

“…This limitation is especially obvious in the case of hydrophobic and amphiphilic molecules, which are likely to adsorb strongly on a wide diversity of substratums. For example, in semistatic tests, the presence of carp larvae strongly increased the percentage of disappearance of the insecticide deltamethrin, a very hydrophobic molecule, in the medium [33]. Therefore, laboratory flow‐through tests or rapid renewal semistatic tests will be necessary to confirm the actual level of Mexel 432 toxicity in pure waters.…”

Section: Resultsmentioning

confidence: 99%

“…Most fish embryos and larvae encounter and tolerate a great diversity of environmental situations in natural waters. For this reason, multifactorial evaluation of the toxic risk linked to a xenobiotic could a priori appears to be indispensable [33]. Moreover, fouling is likely to develop in a wide diversity of environmental situations, consequently inducing the use of antifouling agents in the same situations.…”

Section: Discussionmentioning

confidence: 99%

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Lethal effects of Mexel® 432 to common carp embryolarval stages in river water: Influence of physicochemical parameters in synthetic ISO water

Arehmouch¹,

Tfibel²,

Chaillou³

et al. 1998

Enviro Toxic and Chemistry

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Abstract-The lethal effects of Mexel 432, an antifouling agent for industrial water circuits, on common carp embryolarval stages in Moselle and Seine River waters and synthetic water were tested in the laboratory. Diluting Mexel 432 in river water resulted in the disappearance of its lethal effects within a few days. In freshly prepared 3-mg/L solutions, 100% mortality occurred within 1 d in synthetic International Standards Organization (ISO) water, compared to 96 h in Seine River water (10-mg/L solutions). No lethal effect was observed after 7 d of exposure in an 8-to 15-d-old 50-mg/L solution in Moselle River water or in a 2-d-old 10-mg/L solution in Seine River water. Inhibition of Mexel 432 toxicity by river waters was not due to calcium concentration, temperature, or pH, because these factors had a negligible influence on the lethal effects of Mexel 432 in synthetic ISO water (ranges, 0.8-800 mg/L, 15-24ЊC, and 6.9-9.0, respectively). Aldrich Chemical humic acids immediately suppressed the lethal effects of Mexel 432 with an apparent ratio of 1 to 2 mg Mexel 432/mg humic acids. Also, clays and humic acids immediately reduced the concentration of Mexel 432 in semiquantitative colorimetric dosages.

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Section: Discussionmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Lethal effects of Mexel® 432 to common carp embryolarval stages in river water: Influence of physicochemical parameters in synthetic ISO water

Arehmouch¹,

Tfibel²,

Chaillou³

et al. 1998

Enviro Toxic and Chemistry

Self Cite

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“…The absence of lethal effects inside the Mexel 432-pretreated incubators (I1a and I1b) could result from the absence of such a film. Indeed, contrarily to a similar experiment with deltamethrin, a highly hydrophobic molecule (Ghillebaert et al, 1996), the Mexel 432 filming solution did not lose its toxicity during treatment of the vessel walls (incubator I2). However, if the existence of the Mexel 432 film was confirmed, the absence of toxicity by contact would confirm the nontoxicity of surface-adsorbed Mexel 432 previously observed in the presence of clays (unpublished data).…”

Section: Mexel 432 Toxicity and Film Formationmentioning

confidence: 87%

“…1) according to Ghillebaert et al, (1996): a 10 mg/liter Mexel 432 solution in synthetic water was kept for 24 h in an incubator noted I1. Then, the solution was poured into a new incubator noted I2, which received a batch of 30 larvae.…”

Section: Lethal Effects Of Mexel 432 By Contact With An Eventual Depomentioning

confidence: 99%

Lethal Effects of Mexel 432, an Antifouling Agent, on Embryolarval Development of Common Carp (Cyprinus carpioL.)

Arehmouch¹,

Ghillebaert²,

Chaillou³

et al. 1999

Ecotoxicology and Environmental Safety

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Effects of River Water and Salinity on the Toxicity of Deltamethrin to Freshwater Shrimp, Cladoceran, and Fish

Thomas

Hose

Warne

et al. 2008

Arch Environ Contam Toxicol

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Deltamethrin is a pyrethroid insecticide used extensively to control invertebrate pests on cotton and other crops. It is acutely toxic to nontarget aquatic organisms, but existing toxicity data are mostly from toxicity tests using purified laboratory water that differs greatly from the turbid, high-conductivity rivers in the cotton-growing regions of Australia. The aim of this study was to determine whether the water quality variables conductivity, suspended particles, and dissolved organic matter alter the toxicity of deltamethrin to freshwater crustaceans and a fish. We tested three Australian native species: a cladoceran (Ceriodaphnia cf. dubia), a freshwater shrimp (Paratya australiensis), and larvae of the eastern rainbow fish (Melanotaenia duboulayi). Conductivity of the test solutions ranged from 200 to 750 microS/cm, but such changes did not modify the toxicity of deltamethrin to any of the test species. However, the toxicity of deltamethrin to C. cf. dubia and P. australiensis in river water was significantly decreased (1.8-fold to 6.3-fold reduction) compared to that in laboratory water. Variability in the toxicity data limited our ability to detect differences between laboratory and river water for M. duboulayi. Despite reductions in toxicity in natural waters, deltamethrin remained highly toxic [all L(E)C(50) values <0.26 microg/L] to all organisms tested; thus, further investigation of the hazard of deltamethrin is warranted.

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Deltamethrin Multifactorial Activity toward Carp Larva Mobility Related to Calcium, Humic Acids, and pH

Cited by 4 publications

References 30 publications

Lethal effects of Mexel® 432 to common carp embryolarval stages in river water: Influence of physicochemical parameters in synthetic ISO water

Lethal effects of Mexel® 432 to common carp embryolarval stages in river water: Influence of physicochemical parameters in synthetic ISO water

Lethal Effects of Mexel 432, an Antifouling Agent, on Embryolarval Development of Common Carp (Cyprinus carpioL.)

Effects of River Water and Salinity on the Toxicity of Deltamethrin to Freshwater Shrimp, Cladoceran, and Fish

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