Zinc Induced Histopathological Alternations in Gill, Liver, and Kidney of Freshwater Fish Gonoproktopterus kolus (Sykes)

Karanjkar, D M; Deshpande, V. Y.

doi:10.13189/azb.2020.080504

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Some of these have been reported to be highly carcinogenic, mutagenic, and teratogenic depending on the species, dose, and exposure time (Ngo et al, 2011). Exposure to acute concentrations of zinc sulfate in fish causes drastic degenerative histological changes in gills, liver, and kidneys, causing impaired organ function (Karanjkar & Deshpande, 2020).…”

Section: Zn (Ppm)mentioning

confidence: 99%

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

Budi Wahyono,

Muslim,

Suseno

et al. 2023

Marit. Technol. Res.

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Zinc (Zn) is an essential trace metal, but also a potential toxicant to aquatic organisms. Zinc is one of the toxicants from various industrial and domestic activities whose waste is directly discharged into water. One of the marine organisms used as an indicator of pollution is the blue swimming crab (Portunus pelagicus). Bioaccumulation studies of Zn in Portunus pelagicus from Jakarta Bay were conducted in a radiotracer laboratory. Laboratory experiments were done to study the uptake and release of 65Zn radioisotope in Portunus pelagicus. The experiments conducted were biota collection, acclimatization, bioaccumulation, and elimination. This study was to determine the relationship between the amount of 65Zn released into the aquatic environment and its effect on Zn bioaccumulation ability and radiation dose received by Portunus pelagicus. Biokinetics parameters, such as concentration factors CF, uptake rate constant ku, elimination rate constant ke, and concentration factor steady state (CFss) were investigated. The results showed that an increase in concentration would decrease the rate of absorption and rate of elimination, and that the concentration factor CF values varied from 7.82 - 60.62 ml.g-1 in Portunus pelagicus. The concentration factor at steady-state Zn was 25.55-59.47 ml.g–1, which is influenced by the concentration after 6 days of exposure. The depuration rate was observed to be high, with a value of retention 34.33 - 78.88 % of 65Zn absorbed by Portunus pelagicus, which was absent 7 days after exposure. Highlights Laboratory experiments lasting 14 days showed that Portunus pelagicus has the ability to accumulate the heavy metal zinc (Zn) from the environment and release it back into the water The highest bioaccumulation kinetics of zinc (Zn) metal in Portunus pelagicus during the 7-day experiment occurred at a contaminant concentration of 0.5 ppm with an absorption constant (ku) value of 0.7838 d-1 and a release constant value (ke) of 0.0892 d-1 Portunus pelagicus concentration factor (CF) has a moderate value and the smallest uptake constant (ku) and elimination constant (ke) value compared to other biota

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Section: Zn (Ppm)mentioning

confidence: 99%

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

Budi Wahyono,

Muslim,

Suseno

et al. 2023

Marit. Technol. Res.

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Water Hardness Improves the Antioxidant Response of Zinc-Exposed Goldfish (Carassius auratus)

Choi

Kim

Song

et al. 2023

Biology

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Zinc (Zn), a heavy metal, is an essential element in fish; however, exposure to high concentrations causes oxidative stress. Water hardness reduces oxidative stress reactions caused by heavy metals. To confirm the effect of water hardness on oxidative stress caused by Zn, goldfish were exposed to various Zn concentrations (1.0, 2.0, and 5.0 mg/L) and water hardness (soft (S), hard (H), and very hard (V)). The activity of superoxide dismutase (SOD) and catalase (CAT) in plasma increased with 1.0, 2.0, and 5.0 mg/L of Zn, and decreased with H and V water hardness. The levels of H2O2 and lipid peroxide (LPO) increased with Zn above 1.0 mg/L and decreased with H and V of water hardness. Caspase-9 mRNA expression in the liver increased after 7 and 14 days of Zn exposure and decreased with H and V water hardness. It was confirmed that DNA damage was less dependent on H and V water hardness. Based on the results of this study, at least 1.0 mg/L Zn causes oxidative stress in goldfish, and a high level of apoptosis occurs when exposed for more than 7 days. It appears that the oxidative stress generated by Zn can be alleviated by water hardness of at least 270 mg/L CaCO3. This study provides information on the relationship between the antioxidant response caused by heavy metals and water hardness in fish.

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Zinc Induced Histopathological Alternations in Gill, Liver, and Kidney of Freshwater Fish Gonoproktopterus kolus (Sykes)

Cited by 2 publications

References 14 publications

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

Water Hardness Improves the Antioxidant Response of Zinc-Exposed Goldfish (Carassius auratus)

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