Effect of Insecticides on Plankton and Fish of Ignacio Ramirez Reservoir (Mexico): A Biochemical and Biomagnification Study

Favari, Liliana; López, Eugenia López; Martínez‐Tabche, Laura; Díaz‐Pardo, Edmundo

doi:10.1006/eesa.2002.2142

Cited by 58 publications

(23 citation statements)

References 24 publications

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“…Many studies have addressed the impact of insecticides and herbicides on the biodiversity and productivity of aquatic communities (Lambert 1997;Bridges 1997;Leonard et al 1999;Smith 2001;Favari et al 2002;Boone and James 2003). Particularly, the effect of Roundup 1 on aquatic amphibian communities has been a subject of intense debate (e.g., Thompson et al 2006vs.…”

Section: Discussionmentioning

confidence: 99%

Oxidative stress biomarkers and heart function in bullfrog tadpoles exposed to Roundup Original®

et al. 2007

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Oxidative stress biomarkers, in vivo heart rate (f (H)), and contraction dynamics of ventricle strips of bullfrog (Lithobates catesbeiana) tadpoles were evaluated after 48 h of exposure to a sub-lethal concentration (1 ppm) of the herbicide Roundup Original (glyphosate 41%). The activities of the antioxidant enzymes superoxide dismutase and catalase were increased in the liver and decreased in muscle, while oxidative damage to lipids increased above control values in both tissues, showing that the generation of reactive oxygen species and oxidative stress are involved in the toxicity induced by Roundup. Additionally, tadpoles' hyperactivity was associated with tachycardia in vivo, probably due to a stress-induced adrenergic stimulation. Ventricle strips of Roundup-exposed tadpoles (R-group) presented a faster relaxation and also a higher cardiac pumping capacity at the in vivo contraction frequency, indicating that bullfrog tadpoles were able to perform cardiac mechanistic adjustments to face Roundup-exposure. However, the lower maximal in vitro contraction frequency of the R-group could limit its in vivo cardiac performance, when the adrenergic-stimulation is present. The association between the high energetic cost to counteract the harmful effects of this herbicide and the induction of oxidative stress suggest that low and realistic concentrations of Roundup can have an impact on tadpoles' performance and success, jeopardizing their survival and/or population establishment.

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Section: Discussionmentioning

confidence: 99%

Oxidative stress biomarkers and heart function in bullfrog tadpoles exposed to Roundup Original®

et al. 2007

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“…In spite of these alternatives, a large share of small-scale fruit growers in the Neotropics still rely on calendar-based applications of broad-spectrum insecticides such as malathion sprayed singly or in combination with hydrolyzed protein used as a bait (Aluja 1994;Moreno and Mangan 2002;Mangan and Moreno 2007) or more recently, the bacteriaderived insecticide spinosad (McQuate et al 2005). Despite their effectiveness, resistance (Wang et al 2005;Hsu and Feng 2006), negative impact on natural enemies or on other non-target organisms (Stark et al 2004), as well as water and soil pollution (Favari et al 2002;Murray et al 2010), and deleterious effects on human health (Band et al 2011;Hernández et al 2013;Kjeldsen et al 2013), call for more environmentally-friendly alternatives such as the one proposed here. Classical biological control projects targeting Anastrepha species resulted in the establishment of exotic larval-pupal and pupal fruit fly parasitoids in Mexico .…”

Section: Interactions Among Tephritidae Hymenopteran Parasitoids Andmentioning

confidence: 99%

Pest management through tropical tree conservation

et al. 2014

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Tropical trees can provide various ecological services to adjacent agricultural environments, including maintaining and amplifying the numbers of beneficial insects. In Mexico, certain tree species harbor a diverse guild of hymenopteran parasitoids that attack pest fruit flies (Diptera: Tephritidae) and are at the same time sources of valuable hardwood timber. Indigenous trees and their associated fauna are slowly disappearing due to forest clearance and the expansion of crop monocultures. Here we explore the relationship among pest and non-pest fruit flies, their fruit-hosts and parasitoids in the context of mango orchards and surrounding patches of uncultivated vegetation and propose a novel mechanism to use these associations in favor of conservation purposes and pest management. Trees of conservation biological control interest are classified as: (1) parasitoid multiplier plants, species that serve as alternate hosts for key fruit fly pests when their commercial hosts are not available, but in which they are unusually vulnerable to parasitism; (2) parasitoid reservoir plants, native or introduced trees in whose fruits non-pest fruit flies serve as hosts to generalist parasitoids that are able to attack pest tephritids in other species of commercially grown fruit; and (3) -014-0636-3 introduced species that are not economically important locally, but which harbor fruit flies that would be pests in other circumstances and that serve as hosts for parasitoids of the important pests in the vicinity. Protection, multiplication and dissemination of such tree species has the potential to increase the number of naturally produced fruit fly parasitoids and could assist in the management of tephritid pests in areas where destruction of forests has impoverished the historical sources of fruit fly natural enemies. Tropical forest conservation may help resource-poor farmers reduce crop losses, increase biodiversity within fruit-growing regions and conserve native forests for both conservation purposes and commercial use of native hardwoods.123 Biodivers Conserv (2014) 23:831-853 DOI 10.1007/s10531

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“…In addition, since some fish are lower on the food chain, bioaccumulation of insecticides may increase in tissues of their predators and consumers, such as humans and thus affecting their health and survival. So, the bioaccumulation of these contaminants in fish and the potential biomagnification in humans are perceived as threats (Favari et al, 2002). Bioaccumulation rate of insecticides in fish depends on the species, life stages, the amount of fat reservation in different tissues and diet of fish, chemical and physical properties of insecticides and the rate of water pollution.…”

Section: Biokinetics and Bioteransformationmentioning

confidence: 99%

Adverse Effect of Insecticides on Various Aspects of Fish’s Biology and Physiology

Banaee¹

2012

Insecticides - Basic and Other Applications

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Effect of Insecticides on Plankton and Fish of Ignacio Ramirez Reservoir (Mexico): A Biochemical and Biomagnification Study

Cited by 58 publications

References 24 publications

Oxidative stress biomarkers and heart function in bullfrog tadpoles exposed to Roundup Original®

Oxidative stress biomarkers and heart function in bullfrog tadpoles exposed to Roundup Original®

Pest management through tropical tree conservation

Adverse Effect of Insecticides on Various Aspects of Fish’s Biology and Physiology

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