Importance of exposure route for behavioural responses in Lumbriculus variegatus Müller (Oligochaeta: Lumbriculida) in short-term exposures to Pb

Gerhardt, Almut

doi:10.1065/espr2006.12.371

Cited by 31 publications

(40 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, remobilized sediments may intoxicate organisms and facilitate contaminant translocation in the water column via SPM (cf. Gerbersdorf et al 2007;Gerhardt 2007;Hofmann and Wendelborn 2007;Hollert et al 2007a;Schwartz et al 2006;Heise and Foerstner 2006;Heise et al 2004;Witt and Westrich 2003;Haag et al 2001;Lick and McNeil 2001).…”

mentioning

confidence: 97%

Changes in toxicity and Ah receptor agonist activity of suspended particulate matter during flood events at the rivers Neckar and Rhine — a mass balance approach using in vitro methods and chemical analysis

Wölz

Engwall

Maletz

et al. 2008

Environ Sci Pollut Res

View full text Add to dashboard Cite

As a consequence of climate change, flood events will increase in frequency and intensity at least in some regions such as Central Europe. Thus, it is crucial to identify the potential hazard of (re-)mobilized contaminants from reservoirs dislocated via floods and threatening especially aquatic organisms and cattle grazing in flood plains. Since other less persistent compounds seem to be more relevant to explain AhR-mediated activities in flood SPM, nonconventional PAHs and more polar compounds also need to be considered for risk assessment. Effect-directed analysis using broad-range fractionation methods taking into account compounds from polar to nonpolar should be applied for identification of pollutants causing biological effects, thus integrating biological and chemical parameters.

show abstract

mentioning

confidence: 97%

Changes in toxicity and Ah receptor agonist activity of suspended particulate matter during flood events at the rivers Neckar and Rhine — a mass balance approach using in vitro methods and chemical analysis

Wölz

Engwall

Maletz

et al. 2008

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…present study. However, behavioural responses, such as sediment avoidance, is both a realistic and ecologically relevant response in tubificid worms, and proposed by different authors as an escape response from polluted sediments (Gerhardt, 2007;Meller et al, 1998;Méndez-Fernández et al, 2013). Mucus production was also observed in worms exposed to MN, where a significant decreases of Cd and Pb tissue residues where observed after day 3 (and maintained constant during the rest of the experiment).…”

Section: Discussionmentioning

confidence: 71%

Influences of sediment geochemistry on metal accumulation rates and toxicity in the aquatic oligochaete Tubifex tubifex

2014

View full text Add to dashboard Cite

Metal bioaccumulation and toxicity in the aquatic oligochaete Tubifex tubifex exposed to three metal-contaminated field-sediments was studied in order to assess whether sediment-geochemistry (AVS, TOC) plays a major role in influencing these parameters, and to assess if the biodynamic concept can be used to explain observed effects in T. tubifex tissue residues and/or toxicity. An active autotomy promotion was observed in three studied sediments at different time points and reproduction impairment could be inferred in T. tubifex exposed to two of the tested sites after 28 days. The present study showed that sediment metal concentration and tissue residues followed significant regression models for four essential metals (Cu, Co, Ni and Zn) and one non-essential metal (Pb). Organic content normalization for As also showed a significant relationship with As tissue residue. Porewater was also revealed to be an important source of metal uptake for essential metals (e.g. Cu, Ni and Zn) and for As, but AVS content was not relevant for metal uptake in T. tubifex in studied sediments. Under the biodynamic concept, it was shown that influx rate from food (IF, sediment ingestion) in T. tubifex, in a range of sediment geochemistry, was able to predict metal bioaccumulation, especially of the essential metals Cu, Ni and Zn, and for the non-essential metal Pb. Additionally, IF appeared to be a better predictor for metal bioaccumulation in T. tubifex compared to sediment geochemistry normalization.

show abstract

“…This reduces the variability of results and thus increases the robustness and reproducibility of the method. Furthermore, the use of exposure in situ has proven in the past to be a winning strategy for the assessment of water quality (Gerhardt 2007), but it has rarely involved usage of the family Gammaridae (Lacaze et al 2011) as proposed in the current study. Another advantage of this approach is the ability to control the effective time of exposure.…”

Section: Discussionmentioning

confidence: 99%

Comparison between active and passive biomonitoring strategies for the assessment of genotoxicity and metal bioaccumulation in Echinogammarus veneris (Crustacea: Amphipoda)

Ronci

Meccoli

Iannilli

et al. 2016

Italian Journal of Zoology

View full text Add to dashboard Cite

The aim of this study was to investigate the relevance and the robustness of active and passive approaches used in freshwater biomonitoring with the ecologically relevant gammarid amphipod Echinogammarus veneris. To assess the contaminant bioavailability in two rivers of Latium (Central Italy), we measured the genotoxic potential in haemocytes by comet assay and metal bioaccumulation in tissues by analytical methods. We adopted an active strategy of exposure in situ and a passive method of sampling in situ. In the first case, the gammarids were exposed in cages in several sampling sites selected along two rivers, while in the sampling in situ, individuals were collected directly in the same sampling sites and then analyzed. The results indicate that the comet assay carried out on haemocytes from caged individuals proved to be a sensitive tool for freshwater genotoxicity monitoring. However, the sampling in situ is more appropriate for a realistic understanding of the presence of trace metal in E. veneris.

show abstract

Importance of exposure route for behavioural responses in Lumbriculus variegatus Müller (Oligochaeta: Lumbriculida) in short-term exposures to Pb

Abstract: More emphasis should be given to the interactions of water/sediment in sediment ecotoxicity tests to better simulate field conditions and increase ecological realism in risk assessment, especially as quantitative recording methods exisit.

Cited by 31 publications

References 35 publications

Changes in toxicity and Ah receptor agonist activity of suspended particulate matter during flood events at the rivers Neckar and Rhine — a mass balance approach using in vitro methods and chemical analysis

Changes in toxicity and Ah receptor agonist activity of suspended particulate matter during flood events at the rivers Neckar and Rhine — a mass balance approach using in vitro methods and chemical analysis

Influences of sediment geochemistry on metal accumulation rates and toxicity in the aquatic oligochaete Tubifex tubifex

Comparison between active and passive biomonitoring strategies for the assessment of genotoxicity and metal bioaccumulation in Echinogammarus veneris (Crustacea: Amphipoda)

Contact Info

Product

Resources

About