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

Fixed Action Patterns01:06

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
Freshwater Microbial Ecology01:24

Freshwater Microbial Ecology

Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic systems...

You might also read

Related Articles

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

Sort by
Same author

Influence of sediment and stream transport on detecting a source of environmental DNA.

PloS one·2020
Same author

Influence of remediation on sediment toxicity within the Grand Calumet River, Indiana, USA.

Chemosphere·2020
Same author

Mapping the physiological and molecular markers of stress and SSRI antidepressant treatment in S100a10 corticostriatal neurons.

Molecular psychiatry·2019
Same author

Chrna5-Expressing Neurons in the Interpeduncular Nucleus Mediate Aversion Primed by Prior Stimulation or Nicotine Exposure.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2018
Same author

Ready, set, go: the bridging of attention to action by acetylcholine in prefrontal cortex.

The Journal of physiology·2018
Same author

Opposing Cholinergic and Serotonergic Modulation of Layer 6 in Prefrontal Cortex.

Frontiers in neural circuits·2018

Related Experiment Video

Updated: May 12, 2026

Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its Prey
12:24

Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its Prey

Published on: August 29, 2014

Patterns in stream fish assemblage structure and function associated with a PCB gradient.

Thomas P Simon1, Charles C Morris, Daniel W Sparks

  • 1United States Fish and Wildlife Service, 620 South Walker Street, Bloomington, IN 47403, USA. tsimon@indiana.edu

Archives of Environmental Contamination and Toxicology
|April 23, 2013
PubMed
Summary
This summary is machine-generated.

Polychlorinated biphenyl (PCB) contamination significantly altered stream fish communities, decreasing sensitive species biomass and increasing tolerant species. Individual metrics revealed impacts missed by the total Index of Biotic Integrity score.

More Related Videos

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
07:41

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

Use of Chironomidae (Diptera) Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies
08:27

Use of Chironomidae (Diptera) Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies

Published on: July 24, 2015

Related Experiment Videos

Last Updated: May 12, 2026

Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its Prey
12:24

Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its Prey

Published on: August 29, 2014

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
07:41

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

Use of Chironomidae (Diptera) Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies
08:27

Use of Chironomidae (Diptera) Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies

Published on: July 24, 2015

Area of Science:

  • Environmental Toxicology
  • Aquatic Ecology
  • Ecotoxicology

Background:

  • Polychlorinated biphenyls (PCBs) are persistent organic pollutants that accumulate in aquatic ecosystems.
  • Contamination can disrupt the structure and function of stream fish assemblages.

Purpose of the Study:

  • To investigate the impact of a polychlorinated biphenyl (PCB) gradient on stream fish assemblage structure and function.
  • To evaluate the sensitivity of various fish assemblage attributes and Index of Biotic Integrity (IBI) metrics to PCB contamination.

Main Methods:

  • Sampling fish communities in PCB-contaminated and control streams (Clear Creek, Richland Creek, Little Indian Creek, Indiana, USA) from 1995 to 2002.
  • Analyzing 51 fish assemblage attributes, including biomass, species composition, trophic guilds, and IBI metrics, against increasing PCB concentrations.
  • Utilizing diagnostic analysis of individual IBI metrics to detect subtle community changes.

Main Results:

  • Decreased biomass of sensitive species, carnivores, sunfish, and suckers with increasing PCB levels.
  • Increased biomass and relative abundance of minnows, pioneer species, and tolerant species along the PCB gradient.
  • Total IBI scores failed to detect subtle community shifts, while individual metrics showed significant responses.

Conclusions:

  • Stream fish assemblage structure and function are significantly altered by PCB contamination.
  • Individual IBI metrics are more sensitive than the total IBI score for detecting subtle ecological impacts of pollutants.
  • PCB pollution favors tolerant and pioneer species while negatively impacting sensitive and specialized fish guilds.