Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Toxicity evaluation by using intact sediments and sediment extracts.

Ann-Kristin Eriksson Wiklund1, Brita Sundelin Dag Broman

  • 1Department of Applied Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden. annkristin.eriksson@itm.su.se

Marine Pollution Bulletin
|June 7, 2005
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Enhanced tolerance to narcosis in starved Daphnia magna neonates.

Environmental toxicology and chemistry·2025
Same author

Chemical Activity-Based Loading of Artificial Sediments with Organic Pollutants for Bioassays: A Proof of Concept.

Environmental toxicology and chemistry·2023
Same author

Cardiotoxic and neurobehavioral effects of sucralose and acesulfame in Daphnia: Toward understanding ecological impacts of artificial sweeteners.

Comparative biochemistry and physiology. Toxicology & pharmacology : CBP·2023
Same author

Increase in stable isotope ratios driven by metabolic alterations in amphipods exposed to the beta-blocker propranolol.

PloS one·2019
Same author

Metal contamination in harbours impacts life-history traits and metallothionein levels in snails.

PloS one·2017
Same author

Pollutant Concentrations and Toxic Effects on the Red Alga Ceramium tenuicorne of Sediments from Natural Harbors and Small Boat Harbors on the West Coast of Sweden.

Archives of environmental contamination and toxicology·2016

Sediment extracts showed higher toxicity than intact sediments, indicating extraction increases contaminant bioavailability. Caution is advised in ecological risk assessments and remediation of contaminated sites.

Area of Science:

  • Environmental Toxicology
  • Ecotoxicology
  • Aquatic Toxicology

Background:

  • Pulp-mill effluents can contaminate sediments with toxic compounds.
  • Assessing the bioavailability and toxicity of sediment contaminants is crucial for ecological risk assessment.

Purpose of the Study:

  • To compare the toxicity of intact sediments versus sediment extracts.
  • To evaluate the impact of extraction procedures on contaminant bioavailability and toxicity.
  • To inform ecological risk assessments and remediation strategies for contaminated sediments.

Main Methods:

  • A five-month study exposing the amphipod Monoporeia affinis to intact sediments and sediment extracts from contaminated and uncontaminated sites.
  • Utilizing soft-bottom flow-through water microcosms.

Related Experiment Videos

  • Assessing toxicity through reproduction endpoints, including fecundity and embryo aberrations (e.g., malformed eggs).
  • Employing Toxicity Identification Evaluation (TIE) procedures with fractionated extracts.

    • Main Results:

    • Sediment extracts, particularly aliphatic/monoaromatic, diaromatic, and total fractions, exhibited significant toxicity (measured as malformed eggs).
    • The polyaromatic fraction showed toxicity only at background levels.
    • Intact sediments from the contaminated site did not show toxicity.
    • Extraction procedures appeared to increase contaminant bioavailability and subsequent toxicity compared to intact sediments.

    Conclusions:

    • Extraction processes can enhance the bioavailability and toxicity of sediment contaminants.
    • Caution is necessary when interpreting toxicity data from sediment extracts in ecological risk assessments.
    • Findings impact the prioritization of remediation efforts and the assessment of ecological risks in contaminated aquatic environments.