Use of metabolism and swimming activity to evaluate the sublethal toxicity of surfactant (LAS-C12) on Mugil platanus

Barbieri, Edison

doi:10.1590/s1516-89132007000100012

Cited by 22 publications

(11 citation statements)

References 34 publications

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“…Significant changes in energy balance could only be evident when the homeostatic mechanisms fail, for example, changes in behavior like a reduction of swimming speed and decrease of respiration rate 48 . Although some studies have demonstrated changes in metabolic rate after exposure to organophosphates 49–52 , in our study, a very low concentration of ethoprophos did not affect the RMR in A . aeneus .…”

Section: Discussioncontrasting

confidence: 95%

Neurotoxicity of organophosphate pesticides could reduce the ability of fish to escape predation under low doses of exposure

Sandoval-Herrera

Mena

Espinoza

et al. 2019

Sci Rep

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Biomarkers are frequently used in ecotoxicology as they allow to study toxicant effects happening at low concentrations of exposure. However, most sublethal studies only evaluate cellular biomarkers which lack evident ecological relevance. We used a multibiomarker approach to estimate the toxic effects of ethoprophos, an organophosphate insecticide commonly used in banana plantations, on the tropical fish Astyanax aeneus (Characidae). We measured biomarkers at sub-individual (cellular) and individual (metabolism, behavior) levels and examined relationships among these responses. A sublethal exposure to ethoprophos caused a significant (54%) reduction of brain Cholinesterase (ChE) activity, reflecting the pesticide’s high neurotoxicity. However, other biomarkers like oxidative stress, biotransformation reactions, and resting metabolic rate were not affected. Exposure to ethoprophos modified antipredator behaviors such as escape response and detection avoidance (light/dark preference): exposed fish escaped slower from a simulated attack and preferred brighter areas in a novel tank. The relationship between ChE activity and reaction time suggests that pesticide-induced ChE inhibition reduces escape ability in fish. Our results provide evidence that impacts of organophosphate pesticides on fish ecological fitness can occur even with short exposures at very low concentrations.

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Section: Discussioncontrasting

confidence: 95%

Neurotoxicity of organophosphate pesticides could reduce the ability of fish to escape predation under low doses of exposure

Sandoval-Herrera

Mena

Espinoza

et al. 2019

Sci Rep

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“…2) exposed to high concentrations of 2,4-D. Similar results have also been observed in different fish species for different chemical substances (St-Amand et al 1999;Chinni et al 2002;Wu and Chen 2004;Barbieri 2007). The significant decrease in the consumption of oxygen is probably the result of alterations of energy metabolism (Olsen et al 2006).…”

Section: Discussionsupporting

confidence: 79%

“…Some studies of the pathological effects caused by chronic exposure to chemical substances evidenced the gradual destruction of gills filaments, killing the fish by asphyxia (Barbieri et al 2002;Huang and Wang 1995;Misra et al 1985;Zaccone et al 1985). This is probably what occurred in this study with G. brasiliensis exposed to 80.0 mg/l of 2,4-D, which died in less than 1 h. The oxygen consumption endpoint also provides an index for sublethal stress and for biomonitoring the potentially toxic effects of chemicals (Palanivelu et al 2005;Barbieri 2007).…”

Section: Discussionsupporting

confidence: 54%

“…Evaluations of oxygen consumption and ammonium excretion rates have been used, for example, to study toxic effects caused by aromatic compounds (Lemaire et al 1996), heavy metals (Barbieri et al 2005(Barbieri et al , 2007Wu and Chen 2004), detergents (Barbieri 2007(Barbieri , 1998(Barbieri , 2000(Barbieri , 2002Christiansen et al 1998), and a variety of toxicants (Boudou and Ribeyre 1989). Neutral red retention time assay has also been used to study toxic effects caused by detergent (Stefanoni and Abessa 2008), styrene (Mamaca et al 2005), and some other pollutants (Regoli 2000).…”

Section: Introductionmentioning

confidence: 99%

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Effect of 2,4-D herbicide (2,4-dichlorophenoxyacetic acid) on oxygen consumption and ammonium excretion of juveniles of Geophagus brasiliensis (Quoy & Gaimard, 1824) (Osteichthyes, Cichlidae)

Barbieri

2008

Ecotoxicology

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Fish form important fisheries and aquaculture resources worldwide. In Brazil, pearl eartheater (Geophagus brasiliensis) is an important commercially exploited species and is an ideal animal for studying the impairment caused by the effects of herbicides that are often detected in the aquatic environment. The main purpose of the present study was to detect the acute toxicity of 2,4-dichlorophenoxyacetic acid (2,4-D) to G. brasiliensis and investigate its effects on oxygen consumption, ammonium excretion, and the neutral red retention time assay to estimate effects at the cellular level. Such investigations have not been carried out before with this species. First, the acute toxicity of 2,4-D to G. brasiliensis in terms of the 24-, 48-, 72-, and 96-h medium lethal concentration (LC(50)) was calculated to be 45.95, 32.49, 28.28, and 15.16 mg/l, respectively. Furthermore, it was found that exposure of fish to 40 mg/l 2,4-D caused reduction in oxygen consumption and ammonium excretion of 59% and 85%, respectively, in relation to the controls. Mean neutral red retention time assay was significantly lower in comparison with control for organisms exposed to 1, 5, 10, and 40 mg/l 2,4-D. However, the effects at the cellular level were progressive, suggesting that the fish are not able to recover from such increasing effects.

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“…With respect to swimming behaviour, Plaut () stated that there are few studies that predict the effects of salinity on this parameter in fish. Barbieri (2007a) and Tegon Ferrarini, Rezende and Barbieri () used swimming behaviour to study the effects of environmental changes on the fish's swimming ability, demonstrating that behavioural parameters can be used successfully to assess changes in the aquatic ecosystem.…”

Section: Discussionmentioning

confidence: 99%

Lambari fish Deuterodon iguape as an alternative to live bait for estuarine recreational fishing

Henriques

Fagundes

Petesse

et al. 2018

Fisheries Management Eco

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Fishing tourism is growing steadily in Brazil. Artisanal fishers meeting the demand for recreational fishing are capturing live juvenile shrimp in the estuaries and selling them for live bait, preventing the recruitment of a larger contingent into the ocean. This study compares the efficiency of using lambari, Deuterodon iguape Eigenmann, as live bait with the shrimp, Penaeus schmitti Burkenroad, while fishing for common snook (Centropomus spp.), as well as to evaluate the swimming behaviour of D. iguape in different salinities. The results showed that there was no significant difference between the live baits used (P. schmitti vs D. iguape). The month, the period of the day and salinity presented differences. The size of the species did not depend on the type of bait used. There was no statistical difference in swimming behaviour, but there was a trend of increased speed and displacement in the group exposed to a salinity of 10 g/L. In conclusion, D. iguape appears as effective as P. schmitti and can be successfully used as live bait; and from an ecological point of view, it reduces the impact of fishing on juvenile shrimp.

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Use of metabolism and swimming activity to evaluate the sublethal toxicity of surfactant (LAS-C12) on Mugil platanus

Abstract: This study aimed to investigate the toxicological effects of the LAS-C12 on Mugil platanus (mullet

Cited by 22 publications

References 34 publications

Neurotoxicity of organophosphate pesticides could reduce the ability of fish to escape predation under low doses of exposure

Neurotoxicity of organophosphate pesticides could reduce the ability of fish to escape predation under low doses of exposure

Effect of 2,4-D herbicide (2,4-dichlorophenoxyacetic acid) on oxygen consumption and ammonium excretion of juveniles of Geophagus brasiliensis (Quoy & Gaimard, 1824) (Osteichthyes, Cichlidae)

Lambari fish Deuterodon iguape as an alternative to live bait for estuarine recreational fishing

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