LOSS OF CAPACITY TO ELEVATE PLASMA CORTISOL IN RAINBOW TROUT (ONCORHYNCHUS MYKISS) TREATED WITH A SINGLE INJECTION OF o,p′-DICHLORODIPHENYLDICHLOROETHANE

Benguira, Sandrine; Leblond, Vincent S.; Weber, Jean-Philippe; Hontela, Alice

doi:10.1897/1551-5028(2002)021<1753:loctep>2.0.co;2

Cited by 20 publications

(6 citation statements)

References 20 publications

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“…DDT: Benguira et al, 2002), and metals (Gagnon et al, 2006;Gravel et al, 2005;Hontela, 1998;Laflamme et al, 2000;Norris et al, 1999). In particular, effects on the stress axis similar to those observed in the present study have recently been reported for rainbow trout, Oncorhynchus mykiss, exposed to municipal waste water effluent for 14 days (Ings et al, 2011a,b).…”

Section: Consistency Of These Findings With Previous Studiessupporting

confidence: 88%

The stress response of three-spined sticklebacks is modified in proportion to effluent exposure downstream of wastewater treatment works

et al. 2013

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This study was conducted to investigate whether exposure to wastewater treatment works (WWTW) effluent affects the adaptive stress axis of fish resident within the receiving water.Three-spined sticklebacks (Gasterosteus aculeatus) were sampled from sites downstream of ten WWTWs in north-west England, selected to represent a range of human population equivalents between 1,000 and 125,000. Following capture, indices of stress (whole-body cortisol and glucose concentrations) were measured both prior to, and following, the imposition of a standardised stressor to establish both baseline and stress-induced concentrations of cortisol and glucose. There was considerable between-site variation in size, and to a lesser extent condition, of the fish. Pre-and post-stress cortisol and glucose concentrations also varied significantly between-sites. A large proportion of the variation in both the somatic data and the stress response was explained by variation in the proportion of effluent contributing to total river flow at the study sites. Mass (r 2 = 0.35, P < 0.001) and length (r 2 = 0.37, P < 0.001) of the fish, and cortisol (r 2 = 0.26, P < 0.001) and glucose (r 2 = 0.12, P < 0.01) concentrations in unstressed sticklebacks, were positively related to the concentration of effluent across the sample sites. However, in stressed fish, cortisol (r 2 = 0.32, P < 0.001) and glucose (r 2 = 0.14, P < 0.001) concentrations exhibited a negative trend in relation to the effluent concentrations across sites. Individual variation in fish size did not account for the variation in either cortisol or glucose levels. These data provide the first indication that modulation of the stress axis in fish by anthropogenic factors might be widespread and of greater significance than hitherto assumed.

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Section: Consistency Of These Findings With Previous Studiessupporting

confidence: 88%

The stress response of three-spined sticklebacks is modified in proportion to effluent exposure downstream of wastewater treatment works

et al. 2013

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“…Thus, a temporary loss of osmotic control in fish larvae may increase their susceptibility to predation or impair their feeding abilities (Sclafani et al, 1997). Disruption of normal cortisol secretion in early life stages may also affect their survival by reducing the ability to cope with acute stressful situations and by inducing adverse secondary effects on osmoregulation, growth, development and immune function (Benguira et al, 2002;Gravel et al, 2005;Kennedy and Farrell, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity on sublethal toxicity of atrazine to mummichog (Fundulus heteroclitus) larvae

Fortin

Couillard

Pellerin

et al. 2008

Marine Environmental Research

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“…Blood glucose level increases on application of various stressors like chemical dichlorodiphenyldichloroethane (Benguira, Leblond, Weber & Hontela 2002) in rainbow trout and high aluminum concentrations (Ytrestøyl, Finstad & Mckinley 2001) in Atlantic salmon ( Salmo salar ). In our findings, the blood glucose level was significantly ( P <0.05) influenced by the addition of dietary pyridoxine in the diet of L. rohita fingerlings.…”

Section: Discussionmentioning

confidence: 99%

Stress mitigating and immunomodulatory effect of dietary pyridoxine inLabeo rohita(Hamilton) fingerlings

Akhtar

Pal

Sahu

et al. 2009

Aquaculture Research

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A 60-day experiment was carried out to delineate stress mitigating and immunomodulatory role of dietary pyridoxine (PN) in Labeo rohita ¢ngerlings exposed to endosulfan. Two hundred and seventy ¢ngerlings were randomly distributed into six treatments in triplicates. Five iso-caloric and iso-nitrogenous puri¢ed diets were prepared with graded levels of pyridoxine. Six treatment groups were T 0 (10 mg PN1without endosulfan),T 1 (0 mg PN1endosulfan), T 2 (10 mg PN1endosulfan), T 3 (50 mg PN1 endosulfan), T 4 (100 mg PN1endosulfan) and T 5 (200 mg PN1endosulfan). The role of pyridoxine on stress mitigation and immunomodulation was assessed by biochemical and haemato-immunological parameters like aspartate aminotransaminase, alanine aminotransaminase, lactate dehydrogenase, malate dehydrogenase, superoxide dismutase and catalase were signi¢cantly (Po0.05) lower while acetylcholinesterase was signi¢cantly (Po0.05) higher in pyridoxine-fed groups. Erythrocytes count, haemoglobin content and total serum protein, albumin, globulin, nitroblue tetrazolium and lysozyme activity were signi¢cantly (Po0.05) higher while cortisol and blood glucose were decreased signi¢cantly (Po0.05) in pyridoxine-fed groups. Percentage survival after challenge with Aeromonas hydrophila was highest in T 0 group. The results obtained in present study indicate that dietary pyridoxine supplementation at 100 mg PN kg À 1 diet reduces the endosulfan-induced stress and triggers immune response in L. rohita ¢ngerlings.

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LOSS OF CAPACITY TO ELEVATE PLASMA CORTISOL IN RAINBOW TROUT (ONCORHYNCHUS MYKISS) TREATED WITH A SINGLE INJECTION OF o,p′-DICHLORODIPHENYLDICHLOROETHANE

Cited by 20 publications

References 20 publications

The stress response of three-spined sticklebacks is modified in proportion to effluent exposure downstream of wastewater treatment works

The stress response of three-spined sticklebacks is modified in proportion to effluent exposure downstream of wastewater treatment works

Effects of salinity on sublethal toxicity of atrazine to mummichog (Fundulus heteroclitus) larvae

Stress mitigating and immunomodulatory effect of dietary pyridoxine inLabeo rohita(Hamilton) fingerlings

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