The Stress Response in Fish‐Mechanisms, Effects and Measurement

Pottinger, T.G.

doi:10.1002/9780470697610.ch3

Cited by 75 publications

(77 citation statements)

References 78 publications

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“…Blood glucose, like cortisol, is a marker of the stress response metabolic rate (14), which has the advantage of being easy to evaluate with a narrower raising point (2 times) than cortisol (100 times) (7,16,24,31). In this study, TnE glucose levels had a lower average than those observed in TE in the first two evaluations.…”

Section: Discussioncontrasting

confidence: 37%

“…Pottinger et al (27) sugieren que el hematocrito pudo incrementarse por la acción de las catecolaminas a través de la contracción de la musculatura lisa y las fibras elásticas de la cápsula del bazo. Esto efecto pudo generar un aumento simultáneo en el número de células y en la concentración de hemoglobina, mejorando la eficiencia del transporte de O 2 requerido para el metabolismo de los tejidos expuestos a estrés agudo (7,27).…”

Section: Discussionunclassified

“…Pottinger et al (27) suggest that hematocrit could increase due to the action of catecholamines through smooth muscle contraction and the elastic fibers of the spleen capsule. This could generate a simultaneous increase in cell number and hemoglobin concentration, improving the O 2 transport efficiency required to metabolize tissues exposed to acute stress (7,27).…”

Section: Discussionmentioning

confidence: 99%

“…Además, se ha reportado que el estrés puede generar anormalidades hormonales, alteraciones en el contenido de la glucosa sanguínea y cambios en la composición celular de la sangre (7). Sin embargo, el efecto del estrés en los peces puede variar entre las diferentes especies, y depende mucho de la duración y magnitud del estímulo estresante (8,9).…”

Section: Introductionunclassified

“…Furthermore, it has been reported that stress can generate hormone abnormalities, alterations in blood glucose and changes in blood cell composition (7). However, the effect of stress on fish varies from one species to another, and much depends on the duration and magnitude of the stressor (8,9).…”

Section: Cultured Channel Catfish (Ictalurus Punctatus)mentioning

confidence: 99%

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Hematological and clinical chemistry changes induced by acute stress during handling and capture of catfish (Ictalurus punctatus)

et al. 2016

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RESUMENObjetivo. Evaluar los efectos del estrés agudo debido al manejo y captura sobre los parámetros hematológicos y bioquímicos en bagre de canal (Ictalurus punctatus) bajo cultivo. Materiales y métodos. Los peces (200 g promedio) fueron mantenidos en tanques de cultivo y divididos en dos tratamientos, por duplicado, (n= 15 x 2 x 2 = 60 peces). Treinta bagres fueron expuestos por 5 min a estrés agudo (TE) por manejo y captura, mientras que otro grupo no (grupo control, TnE). Diez peces de cada tratamiento fueron colectados a las 0, 6, y 24 h post-estrés para la extracción de sangre, los bagres del TnE fueron anestesiados durante su manejo y captura. Se evaluó el hemograma (método manual) y bioquímica sanguínea (espectrofotometría). Los resultados fueron analizados mediante la prueba de t student. Resultados. El contenido de eritrocitos, hematocrito, hemoglobina y glucosa de los animales TE fue significativamente mayor (p<0.05) a las 6 h post-estrés en comparación de TnE. Las células inmune en peces TE disminuyeron a las 6 y 24 h post-estrés, siendo leucocitos y linfocitos significativamente menores en el TnE (p<0.05) a las 24 h post-estrés. Otros parámetros evaluados no presentaron diferencias significativas en lo largo del estudio. Conclusiones. Los resultados sugieren que varios indicadores hematológicos y bioquímica sanguínea en los peces son alterados por el estrés agudo ocasionado por manejo y captura.Palabras clave: Bagre, bioquímica sanguínea, estrés, valores hematológicos (Fuente:CAB). ABSTRACTObjetive. Evaluation of hematological and biochemical parameters of culture channel catfish (Ictalurus punctatus) under acute stress by management and capture practice. Materials and methods. Fish (200 g mean) were maintained in culture tanks and divided in two treatments, in duplicate, (n=15x2x2=60 fishes). Thirty catfish were exposed for 5 min to acute stress (TE) by management and capture practice, while other group not (control group, TnE). 10 fish for treatment were collected at 0, 6, and 24 h post-stress for blood collection, where TnE fishes were anesthetized along work. Complete blood count (manual method) and blood biochemical (spectrophotometry) of fish samples were evaluated and their results were analyzed using a Student's t-distribution. Results. The 5346 REVISTA MVZ CÓRDOBA • Volumen 21(2) Mayo -Agosto 2016 erythrocytes, hematocrit, hemoglobin and glucose level of TE animals was significantly higher (p<0.05) at 6 h post-stress, in comparison of TnE. Immune cells in fish TE decreased at 6 and 24 h post-stress, where leukocytes and lymphocytes were significantly lower that TnE (p < 0.05) at 24 h post-stress. Other evaluated parameters did not show significant differences along this study. Conclusions. Those results suggest that several hematological and blood biochemical parameters in fish changed by acute stress generated by management and capture practice.

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Section: Discussioncontrasting

confidence: 37%

Section: Discussionunclassified

Section: Discussionmentioning

confidence: 99%

Section: Introductionunclassified

Section: Cultured Channel Catfish (Ictalurus Punctatus)mentioning

confidence: 99%

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Hematological and clinical chemistry changes induced by acute stress during handling and capture of catfish (Ictalurus punctatus)

et al. 2016

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Ornamental Fish (Actinopterygii)

Sneddon¹,

Wolfenden²

2018

Companion Animal Care and Welfare

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Sublethal propoxur toxicity to juvenile common carp (Cyprinus carpio L., 1758): biochemical, hematological, histopathological, and genotoxicity effects

Gül

Benlı

Ayhan

et al. 2012

Enviro Toxic and Chemistry

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The sublethal toxicological and genotoxic potential of propoxur, a widely used carbamate insecticide against household pests, in veterinary medicine, and in public health, was evaluated on carp as a model species (Cyprinus carpio L., 1758) using the erythrocyte micronucleus test. Based on the 96‐h lethal concentration, 50% (LC50) data from the U.S. Environmental Protection Agency ECOTOX Database (10 mg/L), a sublethal exposure concentration of 5 mg/L was used under static bioassay laboratory conditions. Histopathological evaluation showed no significant changes in spleen, intestine, muscle, or skin tissues. However, the following conditions were recorded: hyperemia, branchitis in primary lamella, and telangiectasis, hyperplasia, fusion, epithelial lifting, and epithelial desquamation in secondary lamella of gill tissues; hemorrhage, destruction, prenephritis, and inflammation and desquamation in the tubules; edema in the kidney; passive hyperemia, albumin, and hydropic degeneration in the liver; and hyperemia, chromatolysis, and glial proliferation in brain tissues. No statistically significant increases in micronuclei frequencies were found. Hematological parameters showed decreased hematocrit values and mean corpuscular volume values, as well as increased erythrocyte and leukocyte counts compared with the control group (p < 0.01). Plasma glucose, cholesterol, triglycerides, phosphorus, sodium, total plasma protein, chloride, and aspartate aminotransferase levels were increased (p < 0.01). Only plasma calcium and potassium levels decreased in the experimental group. Propoxur has an ecotoxicological potential on fish, a nontarget organism. Environ. Toxicol. Chem. 2012; 31: 2085–2092. © 2012 SETAC

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The Stress Response in Fish‐Mechanisms, Effects and Measurement

Cited by 75 publications

References 78 publications

Hematological and clinical chemistry changes induced by acute stress during handling and capture of catfish (Ictalurus punctatus)

Hematological and clinical chemistry changes induced by acute stress during handling and capture of catfish (Ictalurus punctatus)

Ornamental Fish (Actinopterygii)

Sublethal propoxur toxicity to juvenile common carp (Cyprinus carpio L., 1758): biochemical, hematological, histopathological, and genotoxicity effects

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