A histology-based fish health assessment of farmed seabass (Dicentrarchus labrax L.)

Saraiva, Aurélia; Costa, Joana; Serrão, Joana; Cruz, Cristina; Eiras, J. C.

doi:10.1016/j.aquaculture.2015.06.028

Cited by 56 publications

(33 citation statements)

References 43 publications

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“…[56] Several studies have indicated that exposure of fish to environmental stress can disrupt lipid metabolism, and they observed vacuole accumulation in liver. [53][54][55][56][57] The determination of biomarker at molecular level complements the histopathology study. The first response of an organism to any change-induced environmental stress happens at sub-cellular level and could be detected by means of immunohistochemistry methods.…”

Section: Discussionmentioning

confidence: 99%

Liver alterations inOreochromis niloticus(Pisces) induced by insecticide imidacloprid: Histopathology and heat shock proteinin situlocalization

Ansoar-Rodríguez

Christofoletti

Correia

et al. 2016

Journal of Environmental Science and Health, Part B

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Liver is very sensitive to environmental contaminants such as pesticides, it being the first target of toxicity of a substance. The objective of this study was to investigate the possible effects of the insecticide imidacloprid (IMI) on the liver of Oreochromis niloticus according concentrations used for growing sugarcane. A semi-quantitative analysis of histopathological alterations of IMI on liver was performed by light microscopy and cellular labeling of heat shock proteins (HSP70) by immunohistochemistry. The most common changes in liver at all concentrations of IMI were hydropic degeneration, pyknotic nuclei, and loss of cell limits. Steatosis and increased levels of HSP70 were detected in hepatocytes with the highest concentration of IMI. In conclusion, the tested concentrations of IMI induced histopathological changes in the liver of O. niloticus and active defence mechanisms to maintain the morphophysiological integrity of the liver. This insecticide has a toxicity potential for these fish, which is a non-target organism of its action.

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Section: Discussionmentioning

confidence: 99%

Liver alterations inOreochromis niloticus(Pisces) induced by insecticide imidacloprid: Histopathology and heat shock proteinin situlocalization

Ansoar-Rodríguez

Christofoletti

Correia

et al. 2016

Journal of Environmental Science and Health, Part B

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“…As stated by Au (), gill filaments and lamellae provide a large surface area, which is in direct and constant contact with waterborne pollutants, making gills extremely sensitive to toxicant contamination. In addition, they are among the most delicate structures of the teleost body (Saraiva et al, ). According to Jiang et al (), the histopathological alterations in fish gills related to the presence of toxicants have been widely reported as environmental biomarkers, although we agree with Kostić et al () that fish gills respond non‐specifically to pollutants, and various contaminants may cause similar reactions of the gill tissue.…”

Section: Discussionmentioning

confidence: 99%

“…The gonads were also analysed, taking gender and intersex cases as main endpoints. Secondly, a modified five degree (0–5) severity gradation scale (SGS), which represents the severity of each alteration, was defined (score value), following Bernet et al, () and Saraiva, Costa, Serrão, Cruz, and Eiras (). Each grade represented a certain degree of histological alterations and was categorized as follows: (0)—no histological alterations, which represented normal histological structure; (1)—mild histological alterations; (2)—moderate histological alterations; (3)—pronounced histological alterations; (4)—severe histological alterations and (5)—very severe histological alterations.…”

Section: Methodsmentioning

confidence: 99%

A histopathological study on the Caucasian dwarf goby from an anthropogenically loaded site in Hungary using multiple tissues analyses

et al. 2020

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The present study aimed to investigate for the first time the health status of the Caucasian dwarf goby Knipowitschia caucasica (Berg, 1916, Fishes of freshwaters of Russian Empire, p. 563, Moscow, Russia: Dep. Zemledeliya) (Teleostei: Gobiidae) from an anthropogenically loaded site in Hungary using histopathological analyses on multiple tissues. For that purpose, fish were collected from the public beach at Tiszafüred near the River Tisza. Gills, liver and kidney were subjected to histopathological analyses, and the results showed different alterations in each organ, which also differed in their extent and severity. In addition, we also found lesions in the reproductive organs of both, male and female fish which, overall, we hypothesized could be due to untreated municipal wastewaters, most likely contaminated with endocrine‐disrupting chemicals. The multi‐organ histopathological analyses of Caucasian dwarf gobies revealed different lesions, prevalence and severity in each target organ, as follows: liver>gills>kidney>gonad (testes and ovaries). These histopathological lesions can be assessed as good indicators of contamination by endocrine‐disrupting chemicals of freshwater ecosystems.

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“…Therefore, histophysiological studies conducted in conjunction with dietary assessments are efficient tools for detecting alterations in tissues and organs that result from changes in diet (Bernet et al, 1999;Baldisserotto, 2013). Moreover, they allow the visualization of biotic and abiotic effects on physiological functions such as nutrition, growth and reproduction (Saraiva et al, 2015, Yancheva et al, 2016. These tools can help build an understanding of the influence of freshwater cage fish farm on wild biota.…”

Section: Introductionmentioning

confidence: 99%

Dietary changes and histophysiological responses of a wild fish (Geophagus cf. proximus) under the influence of tilapia cage farm

et al. 2018

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A histology-based fish health assessment of farmed seabass (Dicentrarchus labrax L.)

Cited by 56 publications

References 43 publications

Liver alterations inOreochromis niloticus(Pisces) induced by insecticide imidacloprid: Histopathology and heat shock proteinin situlocalization

Liver alterations inOreochromis niloticus(Pisces) induced by insecticide imidacloprid: Histopathology and heat shock proteinin situlocalization

A histopathological study on the Caucasian dwarf goby from an anthropogenically loaded site in Hungary using multiple tissues analyses

Dietary changes and histophysiological responses of a wild fish (Geophagus cf. proximus) under the influence of tilapia cage farm

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