Accumulation of nine heavy metals in water and gills, intestine and digenean parasites of the silver catfish, Bagrus bajad Forskål, 1775

Mashaly, Mohamed I.; El-Naggar, Ahmed M.; El-Tantawy, S. A. M.; Al-Gaafari, Salah A

doi:10.1007/s12639-020-01326-1

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…In addition, gills bioaccumulate a larger concentration of Ni and Mn than other tissues measured; moreover, the Pb and Zn were found in the liver and gills in higher concentrations than the parasite (Morsy et al, 2012). Heavy metals were higher in the gills than intestines, except for Fe, which showed the same mean in the fish's tissues (Mashaly et al, 2021).…”

Section: Host Tissues Examinedmentioning

confidence: 71%

Helminthic Fish Parasites as Bioindicators of Metals Pollution in the Aquatic Environments: Review

Mostafa et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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This review focused on comparing the capability of different helminthic taxa infecting fish to accumulate heavy metals in their bodies, as well as the conditions that influenced such accumulation. Fish-parasite models, fish habitat, elements accumulated, and host tissues analyzed were considered in the present article. The papers published between 2010 and 2022, concerned with helminthic fish parasites, which were used as biological indicators of metal contamination in aquatic environments were retrieved using specific inclusion and exclusion criteria. Four taxa of helminthic parasites were assessed to be bioindicators: acanthocephalan, nematodes, cestodes and trematodes. Fish parasites can accumulate heavy metals at levels of magnitude orders higher levels than their fish hosts' tissues, and can give helpful information on the chemical status of their environment. Compared to helminths that have a gastrointestinal tract; gutless helminths are better sentinels for metal pollution.Factors that impacted the metal accumulation in both fish and their parasites were investigated in a number of retrieved studies. There are various benefits for using fish parasites as bioindicators of heavy metal contamination, but three stand out: protecting fish health as an important element of the ecosystem, monitoring pollution levels in the environment, and safeguarding human health by determining the suitability of fish for human consumption in terms of the accumulation of heavy elements in it. In addition, researchers in the field of ecotoxicology who use fish as bioindicators must keep in mind that parasites reduce heavy metal bioaccumulation in the tissues of their hosts.

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Section: Host Tissues Examinedmentioning

confidence: 71%

Helminthic Fish Parasites as Bioindicators of Metals Pollution in the Aquatic Environments: Review

Mostafa et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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“…in prawns (Macrobrachium vollenhovenii) had extraordinarily high bioaccumulation factors for chromium (>10,000) relative to the host intestine (Bamidele et al 2020); and nematodes in sea lions have been shown to bioaccumulate mercury (McGrew et al 2018). Three species of adult digeneans (Acanthostomum absconditum, Acanthostomum spiniceps, and Haplorchoides cahirinus) in the silver catfish bioaccumulated iron and magnesium (Mashaly et al 2021) and more so in summer and autumn compared with winter and spring. The intestinal digenean Ityogoniumus spp bioaccumulated mercury and lead in Iberian moles collected from agricultural fields in Spain (Adalid et al 2019).…”

Section: Helminths Bioaccumulate Heavy Metalsmentioning

confidence: 99%

Helminth-host-environment interactions: Looking down from the tip of the iceberg

Scott

2023

J. Helminthol.

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In 1978, the theory behind helminth parasites having the potential to regulate the abundance of their host populations was formalized based on the understanding that those helminth macroparasites that reduce survival or fecundity of the infected host population would be among the forces limiting unregulated host population growth. Now, 45 years later, a phenomenal breadth of factors that directly or indirectly affect the host–helminth interaction has emerged. Based largely on publications from the past 5 years, this review explores the host–helminth interaction from three lenses: the perspective of the helminth, the host, and the environment. What biotic and abiotic as well as social and intrinsic host factors affect helminths? What are the negative, and positive, implications for host populations and communities? What are the larger-scale implications of the host–helminth dynamic on the environment, and what evidence do we have that human-induced environmental change will modify this dynamic? The overwhelming message is that context is everything. Our understanding of second-, third-, and fourth-level interactions is extremely limited, and we are far from drawing generalizations about the myriad of microbe-helminth-host interactions.Yet the intricate, co-evolved balance and complexity of these interactions may provide a level of resilience in the face of global environmental change. Hopefully, this albeit limited compilation of recent research will spark new interdisciplinary studies, and application of the One Health approach to all helminth systems will generate new and testable conceptual frameworks that encompass our understanding of the host–helminth–environment triad.

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Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

et al. 2022

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The goal of this study was to assess the harmful effects of heavy metal accumulation on Clarias gariepinus (catfish) in two different polluted areas in the Al Sharkia governorate and assess the impact on oxidative stress and histological changes. The results revealed a highly significant difference in heavy metal levels in the water and inside fish tissues (liver and gonads) between the two sites. The total prevalence of parasitic infection was at the highest percentage in area B, in addition to severe histopathological damage to the liver and the gonads. Findings show that the total prevalence of parasitic infection is associated with uptake of metals, depleted antioxidant activity, and incidence of lipid peroxidation in tissue.

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Accumulation of nine heavy metals in water and gills, intestine and digenean parasites of the silver catfish, Bagrus bajad Forskål, 1775

Cited by 3 publications

References 23 publications

Helminthic Fish Parasites as Bioindicators of Metals Pollution in the Aquatic Environments: Review

Helminthic Fish Parasites as Bioindicators of Metals Pollution in the Aquatic Environments: Review

Helminth-host-environment interactions: Looking down from the tip of the iceberg

Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

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