Seasonal modulation of oxidative stress biomarkers in mangrove oyster (Crassostrea gasar) from an Amazon estuary

Santos, Carla Carolina Miranda dos; Ferreira, Johnata Azevedo; Santos, Cleverson Ranniéri Meira dos; Amado, Lílian Lund

doi:10.1016/j.cbpa.2021.110953

Cited by 5 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While the activity of this enzyme increases to reduce the negative effects of pollutants (Amira et al, 2018;Bouzahouane et al, 2018;Vrankovic et al 2018) it is also known that various pollutants cause inhibition of this enzyme activity in aquatic organisms (Vrankovic et al, 2018). In our study, the inhibition of GST activity in almost all stations in summer may indicate that the pollution is seasonal or that the decrease in activity is due to seasonal physiological changes in sampled organisms (Santos et al, 2021).…”

Section: Biochemical Assaysmentioning

confidence: 55%

Temporal and spatial variations of zooplankton community and biochemical response due to water quality in a Deep Dam Lake (Turkey)

Turhan

Gökçe

2022

International Journal of Pure and Applied Sciences

View full text Add to dashboard Cite

In this study, the zooplankton community and its relationship with environmental factors were investigated in the Karakaya Dam Lake (KDL). The physico-chemical characterization showed that there were obvious changes in the water quality and zooplankton population structure, which was mainly due to the organic matter source. Reactive phosphate (SRP) and nitrogen values were found in low concentrations. A total of 22 zooplankton taxa were determined, including 14 taxa of Rotifera, followed by 6 taxa of Cladocera and 2 taxa of Copepoda. The most abundant species were Synchaeta oblonga (Rotifera), Bosminia longirostris (Cladocera), and Cyclops scutifer (Copepoda). The abundance of zooplankton was highest in spring. Canonical correspondence analysis (CCA) was used to examine relationships between measured environmental variables and zooplankton composition. According to CCA, dissolved oxygen, and SRP values, there was a significant relation to zooplankton abundant with these factors. The triplots diagram demonstrated variations of the structure of zooplankton population composition which can be explained by the environmental variables. Oxidative stress (catalase, glutathione S-transferase, glutathione reductase) and neurotoxicity (acetyl cholinesterase) biomarkers were analyzed in copepod species. Glutathione reductase and acetyl cholinesterase activities were significantly inhibited in the summer. Catalase activity was induced in the spring. The seasonal changes of biomarker indicated that the KDL may be at risk of pollution that originated from agricultural and industrial activities.

show abstract

Section: Biochemical Assaysmentioning

confidence: 55%

Temporal and spatial variations of zooplankton community and biochemical response due to water quality in a Deep Dam Lake (Turkey)

Turhan

Gökçe

2022

International Journal of Pure and Applied Sciences

View full text Add to dashboard Cite

show abstract

“…It is believed that the capacity for direct ingestion results in the accumulation of these particles in the digestive tracts and soft tissues of the animals, disrupting the digestion and metabolism of crabs and impairing their ability to absorb nutrients from food. Additionally, microplastics may have direct toxic effects on crabs, causing damage to the digestive tract and other organs, which can result in alterations in metabolism and feeding behavior in these animals [18,65,[71][72][73].…”

Section: Biomarkersmentioning

confidence: 99%

Microplastics and 17α Ethinylestradiol: How Do Different Aquatic Invertebrates Respond to This Combination of Contaminants?

Nobre,

Moreno,

Alves

et al. 2024

Toxics

View full text Add to dashboard Cite

The synthetic hormone 17α ethinyl estradiol (EE2) is a molecule widely used in female contraceptives and recognized as a contaminant of attention (Watch List) in the European Union due to its high consumption, endocrine effects and occurrence in aquatic environments. Its main source of introduction is domestic sewage where it can be associated with other contaminants such as microplastics (MPs). Due to their characteristics, they can combine with each other and exacerbate their isolated effects on biota. This study evaluated the combined effects of microplastics (MPs) and 17α ethinylestradiol (EE2) on two tropical estuarine invertebrate species: Crassostrea gasar and Ucides cordatus. Polyethylene particles were spiked with EE2 and organisms were exposed to three treatments, categorized into three groups: control group (C), virgin microplastics (MPs), and spiked microplastics with EE2 (MPEs). All treatments were evaluated after 3 and 7 days of exposure. Oysters exhibited changes in phase 2 enzymes and the antioxidant system, oxidative stress in the gills, and reduced lysosomal membrane stability after exposure to MPs and MPEs. Crabs exposed to MPs and MPEs after seven days showed changes in phase 1 enzymes in the gills and changes in phases 1 and 2 enzymes in the hepatopancreas, such as disturbed cellular health. The combined effects of microplastics and EE2 increased the toxicity experienced by organisms, which may trigger effects at higher levels of biological organization, leading to ecological disturbances in tropical coastal ecosystems.

show abstract

Marine shrimps as biomonitors of the Fundão (Brazil) mine dam disaster: A multi-biomarker approach

Maraschi

Marques

Costa

et al. 2022

Environmental Pollution

View full text Add to dashboard Cite

Seasonal modulation of oxidative stress biomarkers in mangrove oyster (Crassostrea gasar) from an Amazon estuary

Cited by 5 publications

References 52 publications

Temporal and spatial variations of zooplankton community and biochemical response due to water quality in a Deep Dam Lake (Turkey)

Temporal and spatial variations of zooplankton community and biochemical response due to water quality in a Deep Dam Lake (Turkey)

Microplastics and 17α Ethinylestradiol: How Do Different Aquatic Invertebrates Respond to This Combination of Contaminants?

Marine shrimps as biomonitors of the Fundão (Brazil) mine dam disaster: A multi-biomarker approach

Contact Info

Product

Resources

About