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 Concept Videos

Microbes and Other Elemental Cycles01:24

Microbes and Other Elemental Cycles

Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
Microbial Leaching01:27

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Acid Mine Drainage01:19

Acid Mine Drainage

Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeSâ‚‚), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten aquatic...

You might also read

Related Articles

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

Sort by
Same author

A smart curtailment approach for reducing bat fatalities and curtailment time at wind energy facilities.

Ecological applications : a publication of the Ecological Society of America·2019
Same author

Influence of water hardness and sulfate on the acute toxicity of chloride to sensitive freshwater invertebrates.

Environmental toxicology and chemistry·2010
See all related articles

Related Experiment Video

Updated: Jul 14, 2026

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

Development of bioassessment-based benchmarks for iron.

Tyler K Linton1, Manoel A W Pacheco, Dennis O McIntyre

  • 1Great Lakes Environmental Center, 1295 King Avenue, Columbus, Ohio 43212, USA. tlinton@glec.com

Environmental Toxicology and Chemistry
|June 19, 2007
PubMed
Summary

Standard toxicity tests struggle to assess iron's impact on aquatic life. A new bioassessment method provides benchmarks for total iron to protect freshwater ecosystems.

More Related Videos

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria
09:45

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria

Published on: July 24, 2016

A Colorimetric Method for Measuring Iron Content in Plants
07:12

A Colorimetric Method for Measuring Iron Content in Plants

Published on: September 7, 2018

Related Experiment Videos

Last Updated: Jul 14, 2026

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria
09:45

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria

Published on: July 24, 2016

A Colorimetric Method for Measuring Iron Content in Plants
07:12

A Colorimetric Method for Measuring Iron Content in Plants

Published on: September 7, 2018

Area of Science:

  • Environmental Science
  • Ecotoxicology
  • Aquatic Ecology

Background:

  • Current water-quality criteria for metals often fail to accurately assess iron's toxicity due to its complex solubility and bioavailability.
  • Standard laboratory bioassays may not adequately protect aquatic life from both direct toxic and indirect physical effects of iron.

Purpose of the Study:

  • To develop a novel methodology for deriving bioassessment-based benchmarks for total iron in freshwater.
  • To establish ecologically relevant criteria that protect aquatic communities from iron pollution.

Main Methods:

  • Utilized quantile regression to model the relationship between increasing total iron concentrations and the decline in maximum abundance of aquatic taxa.
  • Employed a biological condition gradient to interpret ecological responses to iron stress.
  • Projected iron concentrations associated with specific reductions in organism abundance to set ecological benchmarks.

Main Results:

  • Established bioassessment-based benchmarks for total iron at 0.21 mg/L and 1.74 mg/L.
  • Demonstrated a novel approach to derive ecological effects-based criteria for total iron.

Conclusions:

  • The proposed bioassessment-based benchmarks for total iron are crucial for protecting the structure and function of aquatic communities.
  • This new methodology offers a more accurate way to assess and manage iron pollution in freshwater ecosystems.