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

Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time01:02

Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time

367
When drugs are administered extravascularly, a comprehensive evaluation through noncompartmental analysis becomes imperative. This analytical approach considers various parameters that play a crucial role in understanding the pharmacokinetics of these drugs.
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
367
The Integrated Rate Law: The Dependence of Concentration on Time02:39

The Integrated Rate Law: The Dependence of Concentration on Time

40.9K
While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates concentrations of reactants and time. Integrated rate laws can be used to determine the amount of reactant or product present after a period of time or to estimate the time required for a reaction to proceed to a certain extent. For example, an integrated rate law helps determine the length of time a radioactive material must be stored for its...
40.9K

You might also read

Related Articles

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

Sort by
Same author

Extraction method shapes soil water-soluble organic matter composition as revealed by absorbance, fluorescence, and parallel factor analysis (PARAFAC).

Scientific reports·2026
Same author

Episodic flooding causes sudden deoxygenation shocks in human-dominated rivers.

Nature communications·2025
Same author

Limnological data derived from high frequency monitoring buoys are asynchronous in a large lake.

PloS one·2025
Same author

Icelandic glacial dissolved organic carbon fluxes, composition and variability - relevance for the global glacial carbon budget.

The Science of the total environment·2024
Same author

Dissolved organic matter transformations in a freshwater rivermouth.

Biogeochemistry·2023
Same author

Applying early warning indicators to predict critical transitions in a lake undergoing multiple changes.

Ecological applications : a publication of the Ecological Society of America·2022

Related Experiment Video

Updated: Jan 17, 2026

Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems
09:38

Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems

Published on: October 29, 2016

11.0K

Temporal variability in dissolved organic matter composition export in streams.

Most Shirina Begum1, Meredith Kadjeski2, Christina Fasching1,3

  • 1Department of Biology, Trent University, Peterborough, ON Canada.

Biogeochemistry
|September 15, 2025
PubMed
Summary

Dissolved organic carbon (DOC) export is influenced by stream discharge and temperature, impacting its composition. Watershed characteristics, not seasons, primarily control DOM export dynamics, with higher fluxes in colder months and at higher flows.

Keywords:
Dissolved organic matter compositionExportStream dischargeTemperature

More Related Videos

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
12:50

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

11.8K
Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

26.2K

Related Experiment Videos

Last Updated: Jan 17, 2026

Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems
09:38

Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems

Published on: October 29, 2016

11.0K
Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
12:50

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

11.8K
Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

26.2K

Area of Science:

  • Environmental Science
  • Ecology
  • Biogeochemistry

Background:

  • Dissolved organic carbon (DOC) export from freshwater systems is crucial for global carbon cycles and ecosystem function.
  • Understanding the flux and composition of dissolved organic matter (DOM) is vital for assessing ecological impacts.
  • Limited data exists on the composition of DOM export fluxes.

Purpose of the Study:

  • To investigate how water temperature and discharge interact to affect DOC and DOM composition export fluxes.
  • To compare DOM export fluxes between agricultural and forested watersheds in southern Ontario.
  • To analyze seasonal variations in DOM export.

Main Methods:

  • Utilized Generalized Additive Models to analyze data from two contrasting streams.
  • Monitored DOC and DOM composition fluxes across different seasons.
  • Examined the relationship between discharge, temperature, and DOM composition.

Main Results:

  • Both stream discharge and water temperature significantly influenced DOM composition.
  • Terrestrial humic-like DOM showed a strong positive correlation with discharge.
  • While DOC loads were similar, DOM composition fluxes (fluorescent loads and fluxes) differed significantly between streams.
  • Export loads and fluxes were higher in spring and winter, and at medium to high flows.

Conclusions:

  • Watershed characteristics and nutrient availability are primary drivers of DOM dynamics and export.
  • Seasonal factors like discharge and temperature modulate these patterns.
  • Climate change and extreme events may alter DOM processing and delivery to downstream ecosystems.