Uptake of lead by Pomphorhynchus laevis cystacanths in Gammarus pulex and immature worms in chub ( Leuciscus cephalus )

Siddall, Roy; Sures, Bernd

doi:10.1007/s004360050451

Cited by 48 publications

(31 citation statements)

References 11 publications

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“…The advantages of using parasites as bioindicators include, among others, their wide geographic range, their abundance and easy sampling, and their obvious resistance to metal toxicity as demonstrated by exposure studies involving acanthocephalans from ®sh (Siddall and Sures 1998;Sures and Siddall 1999;Zimmermann et al 1999). The mobility of the host enables calculation of the average level of exposure within the natural home range of the de®nitive host.…”

Section: Discussionmentioning

confidence: 99%

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

2000

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The accumulation of cadmium in Moniliformis moniliformis parasitizing experimentally infected rats that had been orally exposed to cadmium was investigated in this study. Cadmium accumulation in the helminth and in different tissues of the host was determined using electrothermal atomic absorption spectrometry (AAS) after a 3-week period of exposure. The mean cadmium concentration measured in M. moniliformis was 5.8 microg g(-1) wet weight, which was 20, 23, and 119 times higher than that determined in the kidney, liver, and intestine of the host, respectively. Although female worms accumulated higher amounts of cadmium than did males, no tendency emerged between the cadmium concentration and the weight of individual acanthocephalans. This study reveals that cadmium accumulation also occurs in archiacanthocephalans, but to a lesser degree than in palaeacanthocephalans parasitizing fish. Due to its cadmium-accumulation capacity, M. moniliformis might be used as a highly sensitive free-living bioindicator in terrestrial and urban ecosystems.

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Section: Discussionmentioning

confidence: 99%

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

2000

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“…Indeed, while macroparasites have already been shown to decrease significantly the degree of accumulation of heavy metals in their hosts (Siddall and Sures, 1998;Sures and Radszuweit, 2007;Sures and Taraschewski, 1995), the effect of micro-parasites on the response to toxics has remained quite overlooked so far.…”

Section: Discussionmentioning

confidence: 99%

Microsporidia parasites disrupt the responses to cadmium exposure in a gammarid

Gismondi

Rigaud

Beisel

et al. 2012

Environmental Pollution

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a b s t r a c tMicrosporidia parasites are commonly found in amphipods, where they are often asymptomatic, vertically-transmitted and have several effects on host sexuality and behaviour. As amphipods are often used as models in ecotoxicological studies, we investigated the effect of microsporidian infections on energy reserves and defence capacities of Gammarus roeseli under cadmium stress. Only females were infected by two microsporidia parasites: Dictyocoela roeselum or Dictyocoela muelleri. In physiological conditions, microsporidia had no major effect on energy reserves and defence capacities of G. roeseli, while under cadmium exposure, energy reserves and antioxidant defence were weaker in infected females. Moreover, higher malondialdehyde levels detected in infected females revealed that they suffered more cellular damages. Our results suggest that microsporidia may affect gammarid fitness in stressful conditions, when parasitic stress cannot be compensated by the host. Consequently, microsporidia parasites should be a factor necessary to take into account in ecotoxicology studies involving amphipods.

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“…comparably high metal levels in both fish parasites and intestine, would indicate a longer exposure time compared to high ratio, i.e. higher metal levels in the parasites than in the intestine (Siddall and Sures 1998). The highest bioconcentration factors in the chub intestinal parasites were found for Cd and Cu, which ranged from 3.3-5.1 in both sampling seasons, followed by Mn (2-3), Fe (0.4-1) and Zn (0.2-0.4).…”

Section: Metal Concentrations In the Chub Gastrointestinal Tissue Andmentioning

confidence: 99%

Metal Bioavailability in the Sava River Water

Dragun

Marijić

Vuković³

et al. 2014

The Handbook of Environmental Chemistry

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Metals present one of the major contamination problems for freshwater systems, such as the Sava River, due to their high toxicity, persistence, and tendency to accumulate in sediment and living organisms. The comprehensive assessment of the metal bioavailability in the Sava River encompassed the analyses of dissolved and DGT-labile metal species of nine metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) in the river water, as well as evaluation of accumulation of five metals (Cd, Cu, Fe, Mn, and Zn) in three organs (liver, gills and gastrointestinal tissue) of bioindicator organism, fish species European chub (Squalius cephalus L.). This survey was conducted mainly during the year 2006, in two sampling campaigns, in April/May and September, as periods representative for chub spawning and postspawning. Additionally, metal concentrations were determined in the intestinal parasites acanthocephalans, which are known for their high affinity for metal accumulation. Metallothionein concentrations were also determined in three chub organs, as a commonly applied biomarker of metal exposure. Based on the metal concentrations in the river water, the Sava River was defined as weakly contaminated and mainly comparable with unpolluted rivers, which enabled the analyses of physiological variability of metal and metallothionein concentrations in the chub organs, as well as establishment of their constitutive levels.

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Uptake of lead by Pomphorhynchus laevis cystacanths in Gammarus pulex and immature worms in chub ( Leuciscus cephalus )

Cited by 48 publications

References 11 publications

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

Microsporidia parasites disrupt the responses to cadmium exposure in a gammarid

Metal Bioavailability in the Sava River Water

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