Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production

Carriquiriborde, Pedro; Díaz, J. A.; Mugni, Hernán Diego; Bonetto, Carlos Alberto; Ronco, Alicia Estela

doi:10.1016/j.chemosphere.2007.02.051

Cited by 77 publications

(47 citation statements)

References 16 publications

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“…Cypermethrin is a highly toxic insecticide to aquatic arthropods, fish, and bees (WHO 1992), fish being the most sensitive of the vertebrates (Edwards et al 1986). Previous studies have shown a range of LC50 values between 0.93 and 21.4 lg CY/L for several fish species (Carriquiriborde et al 2007;Polat et al 2002;Stephenson 1982). If we consider the reported LC50 values for fish and tadpoles, H. pulchellus is a species with low sensitivity to this insecticide.…”

Section: Discussionmentioning

confidence: 91%

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Lethal and sublethal effects of cypermethrin to Hypsiboas pulchellus tadpoles

2010

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The study of the effects of the insecticide cypermethrin (CY) technical grade and its Sherpa® commercial formulation on Hypsiboas pulchellus tadpoles assessing lethality, behavior, growth, and abnormalities under standardized laboratory conditions is reported. Observed behaviors were identified and categorized by means of a ranking system according to the loss of mobility. Results of acute lethal effects indicate higher potency for Sherpa® at this level of assessment. All effects on behavior showed an increasing degree of injury as insecticide concentration increased. Organisms exposed to technical grade CY showed lower body length with respect to controls from 3.44 µg CY/L to higher concentrations, whereas those exposed to Sherpa® exhibited lower growth from 0.83 µg CY/L. Both forms of the tested insecticide caused abnormalities between 0.34 and 4.18 µg CY/L, but 100% of malformed individuals was detected from 34.4 µg CY/L for those exposed to the technical grade CY, and from 8.36 µg CY/L for those exposed to Sherpa®. This study proposes the use of easily identifiable and distinguishable sublethal end-points. The high input loads of CY in natural environments, the detected concentrations in the field, in addition to the low levels of this insecticide required to induce sublethal effects (which could eventually lead to death), allow for the conclusion that the insecticide is a risk factor for amphibians inhabiting agroecosystems.

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Section: Discussionmentioning

confidence: 91%

“…Several studies have indicated that pyrethroids are highly toxic to a number of non-target organisms (Carriquiriborde et al 2007;Crossland 1982;Edwards et al 1986;Ronco et al 2008;Saha and Kaviraj 2008). Sublethal effects of pyrethroids on tadpoles have been detected.…”

Section: Introductionmentioning

confidence: 95%

Lethal and sublethal effects of cypermethrin to Hypsiboas pulchellus tadpoles

2010

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“…Changes in haematological profile have also been used as biomarkers of cypermethrin toxicity to fish (Vani et al 2012;Ojutiku et al 2013). However, the effects of cypermethrin on the growth of fish are rather poorly documented (Carriquiriborde et al 2007). Although the toxic potential of commercial cypermethrin (10% EC) gradually decreases once it is exposed to light (Saha and Kaviraj 2009a), long-term exposure (60 days) to sub-lethal concentration of this pesticide has been found to reduce the growth of the catfish Heteropneustes fossilis (Saha and Kaviraj 2013).…”

Section: Introductionmentioning

confidence: 99%

Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus

Majumder

Kaviraj

2017

Int Aquat Res

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Bioassays were conducted with technical grade and commercial formulation of cypermethrin using freshwater fish Oreochromis niloticus as the test fish. The technical grade cypermethrin contained 92% active ingredient (a.i.) and the commercial formulation was an emulsified concentrate (EC) containing 10% a.i. (10% EC). Based on the actual concentration in water (2 h), the commercial formulation was found to be more acutely toxic to O. niloticus (96-h LC 50 = 4.85 lg/L) than the technical grade cypermethrin (96-h LC 50 = 9.74 lg/L). Exposure to sub-lethal concentrations (1.25, 2.5 lg/L) of commercial cypermethrin for 96 h produced stress on the fish, which was evident from the reduction of hepatic glycogen, reduction in the activities of alkaline phosphatase, acetylcholinesterase and catalase in liver and elevation of plasma glucose level and activities of hepatic acid phosphatase, aspartate aminotransferase and alanine aminotransferase. Exposure to these concentrations of cypermethrin for 14-28 days produced anaemia in fish. Long-term exposure (90 days) of the fish to these concentrations reduced the growth and deposition of protein and lipid in the body of fish as compared to control.It is concluded from this study that even minute concentration (1.25 lg/L) of cypermethrin (10% EC) in water can produce stress on fish. Long term exposure to such concentration of cypermethrin may also affect growth of the fish.

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“…However, a number of studies have proven that CYP and other pyrethroids have hepatotoxic, carcinogenic, neurotoxic, and immunosuppressive potential in mammals. [16][17][18] Synthetic pyrethroids also have the ability to disrupt biochemical, hematological, and reproductive parameters. 19 The toxicity of pyrethroid insecticides in mammals have received great attention in the recent years because animals exposed to these insecticides have exhibited changes in their physiological activities besides other pathological features.…”

Section: Introductionmentioning

confidence: 99%

Dose-Dependent Hematological, Hepatic and Gonadal Toxicity of Cypermethrin in Wistar Rats

Das¹,

Ghosh²,

Paramanik³

et al. 2017

Toxicol Forensic Med Open J

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CitationPesticides are used frequently and may have various adverse effects on human health in different ways. Cypermethrin (CYP) is a synthetic type II pyrethroid pesticide that has been used extensively to control a wide variety of pests in agriculture, forestry, horticulture, and public health. Objectives: This study aimed to investigate the dose-dependent hematological, hepatic and gonadal toxicity of CYP in mature male and female Wistar rats. Methods: Rats were randomly divided into nine groups, different doses of CYP were administered for 14 consecutive days and different hematological, hepatic and gonadal parameters were assayed. Results: Erythrocyte count, hemoglobin percentage, hepatic reduced glutathione (GSH) content and sperm count were significantly diminished. Serum aspartic and alanine transaminase, hepatic malondialdehyde (MDA), testicular cholesterol content were increased following CYP treatment in male rats at 40 and 80 mg/kg body weight (1/9 and 1/4.5 LD 50 ). Elevated ovarian cholesterol content and decreased 17β hydroxy steroid dehydrogenase (HSD) levels were also observed in CYP-exposed female rats at a dose level of 34.33 and 51.5 mg/kg body wt. (1/9 and 1/6 LD 50 ). Conclusion: Taken together, CYP initiated hematological, hepatic and gonadal toxicity in mature male rats with a body weight of 40 mg/kg (1/9 LD 50 ) and gonadal toxicity in mature female rats with a body weight of 34.33 mg/kg (1/9 LD 50 ) and above.

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Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production

Cited by 77 publications

References 16 publications

Lethal and sublethal effects of cypermethrin to Hypsiboas pulchellus tadpoles

Lethal and sublethal effects of cypermethrin to Hypsiboas pulchellus tadpoles

Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus

Dose-Dependent Hematological, Hepatic and Gonadal Toxicity of Cypermethrin in Wistar Rats

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