Biomphalaria alexandrina as a bioindicator of metal toxicity

Habib, Mohamed R.; Mohamed, Azza H.; Osman, Gamalat Y.; Mossalem, Hanan S.; El-Din, Ahmed T. Sharaf; Croll, Roger P.

doi:10.1016/j.chemosphere.2016.05.012

Cited by 32 publications

(13 citation statements)

References 58 publications

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“…Other environmental cues that might impact host and parasite include: the presence of different contaminants such as pesticides, molluscicides, heavy metals or endocrine disruptors (Iqbal and Sinha, 2011; Augusto et al, 2015; Sures et al, 2017). Most ecotoxicological approaches have focused on the toxicity of these pollutants to uninfected or infected snails, using them as bioindicators (Bianco et al, 2014; Fahmy et al, 2014; Mostafa et al, 2014; Tallarico et al, 2014; Habib et al, 2016). The parasite’s intramolluscan development may also be affected by the type of feed used for snail breeding or rearing (Thompson et al, 1991; Fried et al, 2001).…”

Section: What Do We Know About the Influence Of The Environment On Thmentioning

confidence: 99%

Effects of the Environment on Developmental Plasticity and Infection Success of Schistosoma Parasites – An Epigenetic Perspective

2019

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Evidence of how environmental cues affect the phenotypes of, and compatibility between Schistosoma mansoni and their hosts come from studies in environmental parasitology and research on host diet and chemotherapeutic treatment. Schistosomes deal with a multitude of signals from the water environment as well as cues that come from their hosts, particularly in response to molecules that serve to recognize and destroy them, i.e., those molecules that arise from their hosts’ immune systems. These interactions shape, not only the parasite’s morphology, metabolism and behavior in the short-term, but also their infection success and development into different stage-specific phenotypes later in their life cycle, through the modification of the parasite’s inheritance system. Developmental phenotypic plasticity of S. mansoni is based on epigenetic mechanisms which are also sensitive to environmental cues, but are poorly understood. Here, we argue that specific cues from the environment could lead to changes in parasite development and infectivity, and consequently, environmental signals that come from environmental control measures could be used to influence S. mansoni dynamics and transmission. This approach poses a challenge since epigenetic modification can lead to unexpected and undesired outcomes. However, we suggest that a better understanding of how environmental cues are interpreted by epigenome during schistosome development and host interactions could potentially be applied to control parasite’s virulence. We review evidence about the role of environmental cues on the phenotype of S. mansoni and the compatibility between this parasite and its intermediate and definitive hosts.

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Section: What Do We Know About the Influence Of The Environment On Thmentioning

confidence: 99%

Effects of the Environment on Developmental Plasticity and Infection Success of Schistosoma Parasites – An Epigenetic Perspective

2019

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“…They are most commonly applied to examine the effect of the polluted media on the vitality, agility, and survival of the indicator organisms [15]. However, by bioindicators, it is also possible to investigate the accumulation of certain pollutants along the food chain, thus gain more detailed information regarding water quality [16][17][18]. In order to examine the complex effect of more than one contaminant and to evaluate the health condition of the entire aquatic ecosystem, it is important to consider the enrichment along the trophic chain and to examine the biomagnification in the food webs as well.…”

Section: Introductionmentioning

confidence: 99%

Iron and Manganese Retention of Juvenile Zebrafish (Danio rerio) Exposed to Contaminated Dietary Zooplankton (Daphnia pulex)—a Model Experiment

Herman

Fehér

Molnár

et al. 2020

Biol Trace Elem Res

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In present study the effect of iron (Fe) and manganese (Mn) contamination was assessed by modeling a freshwater food web of water, zooplankton (Daphnia pulex), and zebrafish (Danio rerio) under laboratory conditions. Metals were added to the rearing media of D. pulex, and enriched zooplankton was fed to zebrafish in a feeding trial. The elemental analysis of rearing water, zooplankton, and fish revealed significant difference in the treatments compared to the control. In D. pulex the Mn level increased almost in parallel with the dose of supplementation, as well as the Fe level differed statistically. A negative influence of the supplementation on the fish growth was observed: specific growth rate (SGR%) and weight gain (WG) decreased in Fe and Mn containing treatments. The redundancy analysis (RDA) of concentration data showed strong correlation between the rearing water and D. pulex, as well as the prey organism of Fe- and Mn-enriched D. pulex and the predator organism of D. rerio. The bioconcentration factors (BCF) calculated for water to zooplankton further proved the relationship between the Fe and Mn dosage applied in the treatments and measured in D. pulex. Trophic transfer factor (TTF) results also indicate that significant retention of the metals occurred in D. rerio individuals, however, in a much lower extent than in the water to zooplankton stage. Our study suggests that Fe and Mn significantly accumulate in the lower part of the trophic chain and retention is effective through the digestive track of zebrafish, yet no biomagnification occurs.

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“…Some species are known to respond to environmental contaminants; for example, esterase activity of Lymnaea natalensis is considered an early warning signal of pollutants exposure [20]. The relationship between the degree of metal exposure and a measurable effect has been largely established for some freshwater snails, such as Biomphalaria alexandrina [21] and Pomacea canaliculate [22]. Mollusks have been recognized as ideal bioindicators for decades [23], and snails, which are widespread in freshwater ecosystems, can represent up to 60% of the total biomass of macroinvertebrates in some freshwater ecosystems [24].…”

Section: Bioindicatormentioning

confidence: 99%

The Appropriateness of Using Aquatic Snails as Bioindicators of Toxicity for Oil Sands Process-Affected Water

Chen¹,

Eaton²,

Davies³

2021

Pollutants

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Canada’s oil sands mining activity produces large volumes of oil sands process-affected water (OSPW), and there have been increasing concerns regarding the potential environmental impacts associated with this material. Developing an understanding of the toxicity of OSPW is critical to anticipating and mitigating the potential risks and effects of the oil sands industry on surrounding ecosystems. The composition of OSPW is highly variable and is influenced by a range of factors. While numerous research projects have been conducted on the toxicity of OSPW, much remains unknown about its impact on various biota. Freshwater gastropods (snails and slugs) are an ecologically crucial aquatic group, and members of this taxa have been used as bioindicators in a range of ecological settings. The literature suggests freshwater snails could be used as an indicator of toxicity in monitoring programs associated with oil sands development. This mini-review explores the use of snails as bioindicators in aquatic systems affected by oil sands development, focusing on how snails may respond to potential constituents of concern in systems exposed to OSPW.

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Biomphalaria alexandrina as a bioindicator of metal toxicity

Cited by 32 publications

References 58 publications

Effects of the Environment on Developmental Plasticity and Infection Success of Schistosoma Parasites – An Epigenetic Perspective

Effects of the Environment on Developmental Plasticity and Infection Success of Schistosoma Parasites – An Epigenetic Perspective

Iron and Manganese Retention of Juvenile Zebrafish (Danio rerio) Exposed to Contaminated Dietary Zooplankton (Daphnia pulex)—a Model Experiment

The Appropriateness of Using Aquatic Snails as Bioindicators of Toxicity for Oil Sands Process-Affected Water

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