Metabolical effects of Folidol 600 on the neotropical freshwater fish matrinxã, Brycon cephalus

Aguiar, Lúcia Helena de; Moraes, Gilberto; Avilez, Ive Marchioni; Altran, Alexandre Eneas; Corrêa, Cristina Ferro

doi:10.1016/s0013-9351(03)00119-1

Cited by 87 publications

(30 citation statements)

References 33 publications

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“…A similar effect was also reported for M. cavasius with the same product (MURTY et al, 1984). This erratic swimming occurs most likely due to acetylcholinesterase (AChE) inhibition by organophosphorus compounds, as described for several fish species (MURTY et al, 1984;AGUIAR et al, 2004;RENDÓN-VAN-OSTEN et al, 2005) including R. quelen (MIRON et al, 2005). Atrazine was also reported as inducing behavioral abnormalities in Carassius auratus, most commonly erratic swimming, as also observed in the present work, after short-term exposure to sub lethal concentrations (SAGLIO & TRIJASSE, 1998;GREYMORE et al, 2001).…”

Section: Discussionsupporting

confidence: 70%

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

et al. 2008

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Toxicity risks of agricultural pesticides to fishes are pivotal. Currently, many questions remain unsolved regarding to the toxicity of commonly used pesticides to silver catfish (Rhamdia quelen), a South American catfish. The present studies have been designed to investigate the acute toxicity and the lethal concentration (LC50) of four herbicides, two fungicides and two insecticides to silver catfish fingerlings. All experiments were carried out in triplicates, in a static bioassay system, using commercially available pesticides. The data was analyzed through the Trimmed Spearman-Karber method available from the Environmental Protection Agency. The 96hLC50 and 95% lower and upper confidence limits, respectively, for the following pesticides were determined: glyphosate (7.3mg L-1; 6.5-8.3), atrazine (10.2mg L-1; 9.1-11.5), atrazine+simazine (10.5mg L-1; 8.9-12.4), mesotrione (532.0mg L-1; 476.5-594), tebuconazole (5.3mg L-1; 4.9-5.7), methylparathion (4.8mg L-1; 4.3-5.3), strobulurin and triazol (9.9mg L-1; 8.7-11.2). Diflubenzuron was also tested and caused no fish mortality up to 1g L-1. The toxic concentration of these pesticides to silver catfish fingerlings fell above the concentration used for application in the field and, except following accidental application or misplacing of empty recipients, it should not cause fish mortality. Nonetheless, the data obtained will be useful to study the long-term effect of these products on the hematological, biochemical, hormonal and immunological parameters of silver catfish and related fish species in South Brazil.

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Section: Discussionsupporting

confidence: 70%

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

et al. 2008

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“…Plasma glucose and cortisol levels in fish increase after exposure to many pesticides (Bhavan and Geraldine, 1997;Aguiar et al, 2004;Waring and Moore, 2004;Hori et al, 2006), including ATZ exposure (100 g l −1 ) of carp (Gluth and Hanke, 1985). Increased cortisol may be important for mobilizing energy for responding to and repairing damage caused by contaminants, but may have negative consequences for disease resistance and growth (Wendelaar Bonga, 1997).…”

Section: Treatmentsmentioning

confidence: 99%

Effects of hexazinone and atrazine on the physiology and endocrinology of smolt development in Atlantic salmon

2007

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Exposure to hexazinone (HEX) and atrazine (ATZ), highly mobile and widely used herbicides along rivers in the United States, is potentially harmful to Atlantic salmon, which have been listed as an endangered species. To determine the effects of these contaminants on smolt development, juvenile Atlantic salmon were exposed under flow-through conditions to 100 g l −1 HEX, 10 and 100 g l −1 ATZ in fresh water (FW) for 21 days at 10 • C beginning in mid-April. Twelve fish per treatment were sampled in FW, following a 24 h seawater (SW) challenge and after growth for 3 months in SW. Exposure to 100 g l −1 HEX or 10 g l −1 ATZ caused no mortalities of smolts in FW or after SW challenge, while 9% of the fish exposed to 100 g l −1 ATZ died during exposure. Fish exposed to 100 g l −1 ATZ reduced feeding after 10 days of exposure and had an impaired growth rate in FW and during the first month in SW; compensatory growth occurred in the second and third month in SW. HEX and ATZ at 10 g l −1 exposure had no effect on plasma levels of cortisol, growth hormone (GH), insulin growth factor I (IGF-I), thyroxine (T 4 ) and plasma 3,5,3 -triiodo-l-thyronine (T 3 ), Cl − , Mg 2+ , Na + , Ca 2+ in FW or after SW challenge. FW smolts exposed to 100 g l −1 ATZ had decreased plasma Cl − , Mg 2+ , Na + and Ca 2+ ions and increased cortisol. No effect on plasma levels of GH, IGF-I, T 4 or T 3 was found in FW smolts exposed to 100 g l −1 ATZ. Following SW challenge, fish previously exposed to 100 g l −1 ATZ had significant increases in hematocrit, plasma cortisol, Cl − , Mg 2+ , Na + , Ca 2+ and a decrease in T 4 and T 3 . It is concluded that under the conditions imposed in this study, HEX does not affect salinity tolerance of Atlantic salmon smolts, while ATZ causes ionoregulatory, growth and endocrine disturbance.

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“…In a similar to xicological study, (Aguiar, et al [8]) showed that in Anguilla anguilla, fenitrothion reduced levels of glycogen in the liver, in ultrastructural analyses of hepacitos Tilapiatilapia. Oreochromis niloticus exposed to urban pollution, showed drastic reduction of Glycogent (Vutukuru, et al [14], Abdel-Moneim [15]), also observed in our study in G2 on the 20th, had a significant decrease in glycogen granules in relation to G2 on Day 7 and the corresponding control group.…”

Section: Discussionmentioning

confidence: 74%

“…Jiraungkoorskul, et al [7] conducted toxicological studies with herbicides and observed vacuolization and nuclear pyknosis in the liver and dilation of the Bowman's space in the kidneys of the fish Oreochromis niloticus. In a similar study, (Aguiar, et al [8]) reported that fenitrothion, another type of herbicide, caused a decrease in glycogen levels in the liver and muscles of the fish Anguilla anguilla. Most morphological lesions, such as hyperplasia, induced by water contaminants are non specific.…”

Section: Introductionmentioning

confidence: 92%

Analysis of the Liver of Fish Species <i>Prochilodus lineatus</i> Altered Environments, Analyzed with ImageJ

Campos¹,

Pereira²,

Pitol³

et al. 2017

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The fish Prochilodus lineatus (Characiformes, Prochilodontidae), in addition to being a good bioindicator, is also of economic and ecological importance with a broad distribution in the neotropics. Ecotoxicology examines the interaction between environmental chemistry and biota; and in this study we assess alterations of bile and glycogen levels in the fish liver, organ responsible for detoxification, biotransformation and storing nutrients, such as glycogen, and for secreting bile. Fish were separated in three groups to examine the damage caused by the exposure to waters from Lago Azul-Rio Claro-SP and containing diluted biodegradable detergents in comparison to a control group (chlorinated water from an artesian well of UNESP-Campus Rio Claro). A histological analysis was performed on HE and PAS stained sections. The identification of structural changes and the assessment of the area occupied by bile and glycogen were carried out with the software ImageJ, showing that the liver was affected morphologically (cell vacuolization, peripherals nuclei, for example) and problems in bile release and production and storage of glycogen.

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Metabolical effects of Folidol 600 on the neotropical freshwater fish matrinxã, Brycon cephalus

Cited by 87 publications

References 33 publications

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

Effects of hexazinone and atrazine on the physiology and endocrinology of smolt development in Atlantic salmon

Analysis of the Liver of Fish Species <i>Prochilodus lineatus</i> Altered Environments, Analyzed with ImageJ

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Metabolical effects of Folidol 600 on the neotropical freshwater fish matrinxã, Brycon cephalus

Cited by 87 publications

References 33 publications

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

Acute toxicity test of agricultural pesticides on silver catfish (Rhamdia quelen) fingerlings

Effects of hexazinone and atrazine on the physiology and endocrinology of smolt development in Atlantic salmon

Analysis of the Liver of Fish Species &lt;i&gt;Prochilodus lineatus&lt;/i&gt; Altered Environments, Analyzed with ImageJ

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Analysis of the Liver of Fish Species <i>Prochilodus lineatus</i> Altered Environments, Analyzed with ImageJ