Time Course of Metal Loss in Lumbriculus Variegatus Following Sediment Exposure

Dawson, Timothy D.; Lott, Kevin G.; Leonard, Edward N.; Mount, David R.

doi:10.1897/1551-5028(2003)022<0886:tcomli>2.0.co;2

Cited by 5 publications

(7 citation statements)

References 14 publications

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“…Schuler et al 2003) have been performed with freshwater oligochaetes (e.g. Dawson et al 2003, Ingersoll et al 2003. However, Lumbriculus variegatus may also be suitable for toxicity tests using survival, reproduction, disturbance of normal energy metabolism and behaviour as test parameters (Chapman et al 1999, Ding et al 2001, Leppänen et al 2002, Landrum et al 2004.…”

Section: Introductionmentioning

confidence: 99%

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

Gerhardt

2006

Env Sci Poll Res Int

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Section: Introductionmentioning

confidence: 99%

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

Gerhardt

2006

Env Sci Poll Res Int

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“…Purging of gut contents in L. variegatus has been well studied [16,17] and is relatively rapid, with 98% of gut contents purged within 6 h of being placed into clean water without substrate. As a result, oligochaetes sieved from contaminated sediment will have sediment particles and associated toxicant in their gut lumen, in addition to toxicant already taken up and partitioned into their body tissues.…”

Section: Toxicant Loading and Depurationmentioning

confidence: 99%

“…This might be particularly true for metal and metalloid toxicants. Purging of gut contents in L. variegatus has been well studied [16,17] and is relatively rapid, with 98% of gut contents purged within 6 h of being placed into clean water without substrate. If oligochaetes are fed to fish without purging, one should recognize that the oligochaetes will begin purging as soon as they are isolated from sediment into water.…”

Section: Toxicant Loading and Depurationmentioning

confidence: 99%

“…In the presence of adequate food, their doubling time can be relatively rapid (10-14 d). Depuration of chemical during the first few hours in clean water appears to be relatively small for nonionic organic chemicals, with log K OW Ͼ 3, as well as for cationic metals [16,17]. Depuration of chemical during the first few hours in clean water appears to be relatively small for nonionic organic chemicals, with log K OW Ͼ 3, as well as for cationic metals [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Chemical dosing can be accomplished through water exposure, sediment exposure, or both, and the apparently low degree of xenobiotic metabolism in L. variegatus [14,15] helps maintain the dosed chemical in their tissues. Depuration of chemical during the first few hours in clean water appears to be relatively small for nonionic organic chemicals, with log K OW Ͼ 3, as well as for cationic metals [16,17]. On introduction to aquaria containing experimental fish, L. variegatus maintain their integrity and viability, making it much easier to quantify the total dose ingested by fish.…”

Section: Introductionmentioning

confidence: 99%

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Use of the oligochaete, Lumbriculus variegatus, as a prey organism for toxicant exposure of fish through the diet

Mount

Highland

Mattson

et al. 2006

Environmental Toxicology and Chemistry

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The oligochaete, Lumbriculus variegatus, has several characteristics that make it desirable as a prey organism for conducting dietary exposure studies with fish. We conducted 21- and 30-d experiments with young fathead minnows (Pimephales promelas) and rainbow trout (Oncorhynchus mykiss), respectively, to determine whether a diet consisting solely of L. variegatus would support normal growth and to compare performance with standard diets (Artemia nauplii, frozen brine shrimp, or trout chow). All diets were readily accepted, and fish survived and grew well. Food conversion in both fathead minnows and rainbow trout was as high as or higher for the oligochaete diet compared with others, although this comparison is influenced by differences in ration, ingestion rate, or both. The oligochaete diet had gross nutritional analysis similar to the other diets, and meets fish nutrition guidelines for protein and essential amino acids. Methodologies and practical considerations for successfully using oligochaetes as an experimental diet are discussed. Considering their ready acceptance by fish, their apparent nutritional sufficiency, the ease of culturing large numbers, and the ease with which they can be loaded with exogenous chemicals, we believe that L. variegatus represents an excellent choice of exposure vector for exposing fish to toxicants via the diet.

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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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Time Course of Metal Loss in Lumbriculus Variegatus Following Sediment Exposure

Cited by 5 publications

References 14 publications

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

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

Use of the oligochaete, Lumbriculus variegatus, as a prey organism for toxicant exposure of fish through the diet

Toxicity of Mining-Contaminated Lake Sediments to Lumbriculus variegatus

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