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

Osmoregulation in Fishes02:32

Osmoregulation in Fishes

53.3K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
53.3K
Vapor Pressure02:34

Vapor Pressure

41.1K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
41.1K
Multiple Allele Traits01:49

Multiple Allele Traits

38.2K
The Concept of Multiple Allelism
38.2K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

43.8K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
43.8K
Multiple Regression01:25

Multiple Regression

4.0K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
4.0K
Constant Pressure Calorimetry03:02

Constant Pressure Calorimetry

97.9K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.9K

You might also read

Related Articles

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

Sort by
Same author

Spatial distribution of nicotine concentrations in Berlin's surface waters and their potential sources.

Environmental science and pollution research international·2025
Same author

Thermodynamics and kinetics of early stages of carbon dot formation: a case of citric acid and ethylenediamine reaction.

Nanoscale·2025
Same author

Fish habitat models for a future of novel riverscapes.

Bioscience·2024
Same author

Variable habitat use supports fine-scale population differentiation of a freshwater piscivore (northern pike, Esox lucius) along salinity gradients in brackish lagoons.

Oecologia·2024
Same author

A global systematic map of knowledge of inland commercial navigation effects on freshwater ecosystems.

Journal of environmental management·2024
Same author

Linking functional habitat and fish population dynamics modeling to improve river rehabilitation planning and assessment.

Journal of environmental management·2024

Related Experiment Video

Updated: Feb 14, 2026

Necropsy-based Wild Fish Health Assessment
07:57

Necropsy-based Wild Fish Health Assessment

Published on: September 11, 2018

18.1K

Disentangling multiple pressures on fish assemblages in large rivers.

Petr Zajicek1, Johannes Radinger2, Christian Wolter1

  • 1Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Department Biology and Ecology of Fishes, Mueggelseedamm 310, 12587 Berlin, Germany.

The Science of the Total Environment
|February 11, 2018
PubMed
Summary
This summary is machine-generated.

Inland navigation significantly impacts European large rivers, affecting fish populations alongside hydromorphological degradation. River management must address both navigation and habitat changes for effective rehabilitation.

Keywords:
Fish diversityFish-based assessmentFunctional guildsInland navigationRiver rehabilitationWaterways

More Related Videos

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
10:44

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

12.1K
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
07:25

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

12.1K

Related Experiment Videos

Last Updated: Feb 14, 2026

Necropsy-based Wild Fish Health Assessment
07:57

Necropsy-based Wild Fish Health Assessment

Published on: September 11, 2018

18.1K
Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
10:44

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

12.1K
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
07:25

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

12.1K

Area of Science:

  • River ecology and conservation
  • Freshwater fish population dynamics
  • Environmental impact assessment

Background:

  • European large rivers face multiple human pressures, including inland navigation, impacting aquatic ecosystems.
  • Previous multi-pressure analyses often overlooked the specific role and impact of inland navigation.
  • Understanding pressure interactions is crucial for effective river management and fish-based assessments.

Purpose of the Study:

  • To determine the influence of 11 prevailing pressures, including navigation intensity, on ten fish population metrics (FPM) across eight European large rivers.
  • To identify indicative FPM that can serve as reliable indicators for the most influential pressures.
  • To analyze the interactions between inland navigation and other environmental pressures on fish guilds and biodiversity.

Main Methods:

  • Studied 76 sites in eight European large rivers, assessing ten fish population metrics (FPM).
  • Utilized bootstrapped regression tree models to analyze the influence, impact, and interactions of 11 pressures on FPM.
  • Focused on densities of diagnostic guilds and overall biodiversity as key metrics.

Main Results:

  • Increased flow velocity, navigation intensity, and floodplain loss were the most influential pressures on fish guilds and biodiversity.
  • Interactions between navigation intensity and floodplain loss, and between navigation intensity and increased flow velocity, were most frequent, affecting 80% of FPM.
  • Specific FPM, including species richness and certain fish guilds (lithophilic, psammophilic), indicated river degradation and shoreline habitat disturbance linked to navigation and hydromorphological changes.

Conclusions:

  • Inland navigation is a highly influential pressure in European large rivers, exacerbating existing hydromorphological degradation.
  • Diagnostic fish population metrics can be derived to indicate specific pressures like rhithralisation and shoreline habitat disturbance.
  • Effective rehabilitation of European large rivers requires integrated management strategies that consider both river hydromorphology and inland navigation impacts.