Sediment-associated retene bioavailability of sediment-associated retene to an oligochaete wormlumbriculus variegatus

Nikkilä, Anna; Kukkonen, Jussi V. K.; Oikari, Aimo

doi:10.1007/bf02986476

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Growth was more sensitive test endpoint than reproduction. Similar results have been observed with L. variegatus exposed to sediments spiked with retene, where differences were not observed in reproduction between exposures (Nikkilä et al 2001). Because the reproduction of L. variegatus is asexual, sublethal and lethal endpoints cannot always be distinguished definitely (Rodriguez and Reynoldson 2011).…”

Section: Mining Sites (Ii Iii)supporting

confidence: 84%

Lumbriculus variegatus (Annelida) biological responses and sediment sequential extractions indicate ecotoxicity of lake sediments contaminated by biomining

Wallin

Vuori

Väisänen

et al. 2018

Science of The Total Environment

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We assessed potential ecotoxicity of lake sediments affected by biomining effluents in northeastern Finland. Growth, reproduction and behavior of the sediment-dwelling oligochaete Lumbriculus variegatus (Müller 1774) were used as ecotoxicity endpoints. Standardized chronic bioassays were used for growth and reproduction, and acute and chronic tests with Multispecies Freshwater Biomonitor (MFB) for behavior assessments. Sequential extractions were used to characterize metal bioavailability and exposure conditions in the sediments, which indicated mining-induced contamination gradients of S, Cu, Ni and U and also bioavailability gradients of S and Ni. Among the ecotoxicity endpoints, growth and reproduction responses of the standard bioassays appeared more sensitive than the behavioral responses at 21 d. In the two most mining-affected test sediments, mean number of worms and dry biomass decreased 35-42% and 46-51% in comparison to the reference sediment, respectively. The behavioral changes of worms, i.e. peristaltic and overall locomotory activity, decreased on average 20-70% and 2-61% at 21 d in the same sediments. However, these behavioral changes were observed at the onset of exposure indicating MFB technique is a suitable and rapid screening level ecotoxicity assessment tool.

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Section: Mining Sites (Ii Iii)supporting

confidence: 84%

Lumbriculus variegatus (Annelida) biological responses and sediment sequential extractions indicate ecotoxicity of lake sediments contaminated by biomining

Wallin

Vuori

Väisänen

et al. 2018

Science of The Total Environment

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“…Growth and reproduction were equally sensitive endpoints in our toxicity tests. On the contrary, Nikkilä et al, (2001) have stated that growth was more sensitive when L. variegatus was exposed to retene-spiked sediments. HLW setup induced more distinct response to both endpoints used in our study.…”

Section: Toxicity Of Mining-contaminated Sedimentsmentioning

confidence: 95%

Toxicity of Mining-Contaminated Lake Sediments to Lumbriculus variegatus

Wallin

Väisänen

Karjalainen

2021

Water Air Soil Pollut

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Boreal lakes with soft water and low buffering capacity are susceptible to excess ion loading resulting from metal mining. The impact of two Finish mining sites in downstream lakes was assessed with a chronic sediment toxicity test using a laboratory-reared freshwater Lumbriculus variegatus (Oligochaeta). The test organisms were exposed to mining-contaminated natural lake sediments and hypolimnion water (HLW) or artificial freshwater (AFW) as overlying water in two independent experimental setups. In both test setups, growth and reproduction of L. variegatus were lower in sediments from the lakes receiving high amount of mining effluents from the mines nearby. In the biomining site, the main contaminants in the recipient lakes were the ore metals Ni and Zn, while in the lakes affected by the conventional underground mine, they were Cu and Zn. These metals accumulated in L. variegatus especially in the setup with natural HLW above the sediment. Growth and reproduction were lower in the HLW than in the AFW setup. The mining-contaminated sediments did not support optimum growth or reproduction of L. variegatus in comparison to the local reference sediments. Decline of pH in the unbuffered natural sediments brought up challenges in the assessment of metal-contaminated lake sediments with high sulfur content, and a need to develop new tools for their risk assessment.

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“…The wet sediment samples were stored in the dark at 4 °C under anaerobic conditions until further analysis and use. Dry weight of samples was determined according to Nikkilä et al (2001). …”

Section: Sampling Of Sedimentsmentioning

confidence: 99%

“…Specifically, the native reference sediment (PJ) was reconstituted with inorganic constituents (51 % fine-grained sand, 0.05-0.25 mm; 26 % medium-coarse sand, 0.3-0.6 mm; 17 % kaolin, Riedel-de Haën, Germany), with minor modifications to the method employed by Nikkilä et al (2001) (I, III, IV). The reconstituted sediment was slowly stirred using a stainless steel blender at 4 °C for ca.…”

Section: Preparation Of Sediments For Whole Sediment Bioassays (I IImentioning

confidence: 99%

“…Dry weight was determined after oven-drying at 105 °C for 18 h. For loss on ignition (LOI), the dry samples were then burned at 550 °C for 2 h, the weight ratio (550 °C:105 °C) representing the inorganic solid residue (%) as LOI, an estimate of total organic matter. For TOC, samples were prepared according to Nikkilä et al (2001) and ca. 2.6 mg of freeze-dried sediment was analyzed in a Thermo Finnigan EA 1112 Series Flash Elemental Analyser.…”

Section: Total Organic Carbon and Otcs In Sediments (I III Iv)mentioning

confidence: 99%

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Probing the xeno-oestrogenic impact of sediment cores contaminated by the pulp and paper industry: induction of aromatase cyp19a1b in late larval zebrafish

Sahoo

Oikari

2014

J Soils Sediments

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To assess xenoestrogenicity, the 20 days-post-fertilization zebrafish (20dpfZF) life-stage was experimentally exposed to known model chemicals as well as to environmentally contaminated samples. From a selection of key responsive genes, molecular responses associated with the steroidogenic impact (brain aromatase, cyp19a1b and vitellogenin isoform 1, vtg1) were used to assess the endocrinic modulation by xenoestrogenic samples. This work showed diverse in vivo responses by the 20dpfZF, from pure chemicals (bisphenol A, BPA; 17 -ethinylestradiol, EE2; nonylphenol, NP; octylphenol, OP), and their mixture combinations, and to industrially contaminated sediment samples. Gene expression analysis of cyp19a1b and vtg1 in exposed 20dpfZF showed the estrogenic potencies of chemicals in the order: EE2 > OP > BPA > NP. Transcriptional up-regulation of vtg1 in early juvenile fish exposed to mixtures (BPA + NP + OP), relative to individual concentrations, suggest in minimum the additive in vivo effect of a mixture of very low sublethal doses of single xenoestrogens. Complementary expression of cyp19a1b and vtg1 in 20dpfZF, exposed to artificially-spiked sediment with EE2 established the estrogenresponsiveness of the model. In contrast, the lack of simple estrogenic or antiestrogenic trait of correspondence in biomarker transcription was evident from exposure to two types of industrially contaminated sediments, suggesting common non-linearity of in vivo response by the model. The results also highlight the applicability of 20dpfZF in the assessment of remediation and monitoring of historically polluted sites. This study showed that the 20dpfZF addressed the regulatory requirement of a multi-purpose and cost-effective ecotoxicological model capable of in vivo genomic assessment of endocrineactive substances in aquatic samples.

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Sediment-associated retene bioavailability of sediment-associated retene to an oligochaete wormlumbriculus variegatus

Cited by 10 publications

References 28 publications

Lumbriculus variegatus (Annelida) biological responses and sediment sequential extractions indicate ecotoxicity of lake sediments contaminated by biomining

Lumbriculus variegatus (Annelida) biological responses and sediment sequential extractions indicate ecotoxicity of lake sediments contaminated by biomining

Toxicity of Mining-Contaminated Lake Sediments to Lumbriculus variegatus

Probing the xeno-oestrogenic impact of sediment cores contaminated by the pulp and paper industry: induction of aromatase cyp19a1b in late larval zebrafish

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