Cortisol response to acute stress in jundiá Rhamdia quelen acutely exposed to sub-lethal concentrations of agrichemicals

Cericato, Leonardo; Neto, Joaquim Gonçalves Machado; Fagundes, Michele; Kreutz, Luiz Carlos; Quevedo, Rosmari Mezzalira; Finco, Jovani; Rosa, João Gabriel Santos da; Koakoski, Gessi; Centenaro, Lucas; Pottker, Emanuele Serro; Anziliero, Deniz; Barcellos, Leonardo José Gil

doi:10.1016/j.cbpc.2008.06.008

Cited by 44 publications

(35 citation statements)

References 39 publications

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“…Regarding serum cortisol results demonstrated in Table (2), revealed that there was a significant increase in cortisol level of atrazine exposed fish during the long term of exposure in comparison to the control group. Our investigations agreed with Cericato et al (2008) and Hamed (2010). This may be explained by the activation of hypothalamo-pituitary-inter renal axis with the release of steroid cortisol in blood stream due to stress (Reddy and Leatherland, 1998).…”

Section: Resultssupporting

confidence: 93%

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Kadry

Amer

Marzouk

et al. 2012

Egypt. J. of Aquatic Biolo. and Fish.

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The present study was planned aiming to investigate the effects of atrazine herbicide exposure on stress biomarkers acetylcholinesterase activity (AchE) and cortisol, oxidative stress responses and the histopathological changes in liver of female Clarias gariepinus and the ameliorative effect of vitamin E supplementation (240mg/kg diet) on the degree of atrazine sublethal toxicity (1.37mg/l) for 6 weeks. Chronic exposure to atrazine revealed a marked inhibition in the activity of AchE. But, significant increase of serum cortisol level was recorded. Moreover, atrazine exposure was associated with a marked induction of oxidative damage in liver tissue as evidenced by increased level of lipid peroxidation (LPO) and reduced glutathione (GSH) content. Atrazine exposure also led to a significant increase in the activities of catalase (CAT) and superoxide dismutase (SOD).Furthermore, histopathological examination of the liver of exposed fish showed dilatation and congestion of blood vessels, fatty degeneration, necrosis and pyknotic nuclei of hepatocytes. However, fish fed diet supplemented with vitamin E exhibited protective effect by minimizing the atrazine-induced toxicity, through measured values more or less similar to the control group fish.

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Section: Resultssupporting

confidence: 93%

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Kadry

Amer

Marzouk

et al. 2012

Egypt. J. of Aquatic Biolo. and Fish.

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show abstract

“…It also been demonstrated that OP pesticides can reduce (Cericato et al, 2008;Oruç, 2010) or induce (Kime, 1998;Nieves -Puigdoller, Björnsson, & McCormick, 2007) cortisol secretion in different fish species. The possible effects of diazinon on cortisol secretion can be another result for VTG depletions in female carps.…”

Section: Discussionmentioning

confidence: 99%

Untitled

Korkmaz¹,

DONMEZ²

2017

Turk. J. Fish. Aquat. Sci.

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“…This immune stress also diminishes welfare [21,25] and has the effect of weakened fish. Several publications affirm this [18,[45][46][47]. Analyzing immune parameters such as lymphocytes, neutrophil granulocytes, etc., would help to complete the picture of immune stress and welfare in this context.…”

Section: Stress and Welfare Aspectsmentioning

confidence: 99%

Stress and Welfare of African Catfish (Clarias gariepinus Burchell, 1822) in a Coupled Aquaponic System

Baßmann

Brenner

Palm

2017

Water

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African catfish (Clarias gariepinus) were investigated for physiological stress parameters to assess the influence of different cultivation techniques on fish welfare. The fish were reared in two conceptually identical recirculating aquaculture systems (RAS) constructed in a greenhouse. One system was combined with a floating raft hydroponic unit to culture cucumbers (Cucumis sativus) only using the process water. The second system remained without the plant cultivation unit and functioned as the control. Water quality was monitored regularly by measuring dissolved nutrients and physical water parameters. During 87 days, a total of 71 fish from each system (n = 142) were studied, with a final sampling of all fish (n = 107) at the end of the experiment. Blood from the caudal vein was analyzed for the stress hormone cortisol and the glucose concentration. In addition, fish were investigated for external injuries on their skin, fins and barbels. The results demonstrate that the system design had no influence on fish mortalities and growth rates. Furthermore, cortisol and blood glucose levels did not differ significantly between the two systems. However, the number of external injuries was significantly lower in the aquaponics, providing evidence that co-cultivation of fish and plants might offer benefits to the welfare of the fish.

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Cortisol response to acute stress in jundiá Rhamdia quelen acutely exposed to sub-lethal concentrations of agrichemicals

Cited by 44 publications

References 39 publications

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Untitled

Stress and Welfare of African Catfish (Clarias gariepinus Burchell, 1822) in a Coupled Aquaponic System

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