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

Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
Pressure Variation in a Fluid at Rest01:11

Pressure Variation in a Fluid at Rest

In a fluid at rest, the pressure at any point beneath the fluid surface depends solely on the depth, not on the container's shape or size. This principle, known as hydrostatic pressure, arises because, in stationary fluids, there is no acceleration, meaning the forces within the fluid balance out. Only vertical forces, caused by the weight of the fluid above, contribute to pressure changes with depth.
When measuring pressure at two different levels within the fluid, the difference in pressure...
Steady Flow of a Fluid Stream01:27

Steady Flow of a Fluid Stream

Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...

You might also read

Related Articles

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

Sort by
Same author

From species-specific behaviour to ecosystem risk: Upscaling our understanding of microplastic impacts on marine soft sediment ecosystem functions.

Marine pollution bulletin·2026
Same author

Assessing the variability and vulnerability of carbon function in coastal soft sediment ecosystems to inform protection.

Ecological applications : a publication of the Ecological Society of America·2026
Same author

Variability in alluvial river width driven by intermittent bank collapse.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Biological traits predict species' time-varying responses to multiple global change drivers.

Nature communications·2026
Same author

Injection of acoustic waves via volumetric sources on a control surface for computational aeroacoustics.

The Journal of the Acoustical Society of America·2026
Same author

Source-specific insights into photochemical and microbial degradation of dissolved organic matter in coastal environments.

Marine environmental research·2025

Related Experiment Video

Updated: Jul 18, 2026

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea
07:20

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea

Published on: September 5, 2018

Feedbacks between bivalve density, flow, and suspended sediment concentration on patch stable states.

Giovanni Coco1, Simon F Thrush, Malcolm O Green

  • 1National Institute of Water and Atmospheric Research, P.O. Box 11-115, Hamilton, New Zealand. g.coco@niwa.co.nz

Ecology
|December 16, 2006
PubMed
Summary

Bivalve density influences patch stability through biophysical feedbacks. Changes in bivalve or sediment levels can alter patch structure and lead to new stable states, impacting benthic suspension feeders.

More Related Videos

A Flow-through Exposure System for Evaluating Suspended Sediments Effects on Aquatic Life
12:15

A Flow-through Exposure System for Evaluating Suspended Sediments Effects on Aquatic Life

Published on: January 9, 2017

Image-based Lagrangian Particle Tracking in Bed-load Experiments
10:32

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Published on: July 20, 2017

Related Experiment Videos

Last Updated: Jul 18, 2026

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea
07:20

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea

Published on: September 5, 2018

A Flow-through Exposure System for Evaluating Suspended Sediments Effects on Aquatic Life
12:15

A Flow-through Exposure System for Evaluating Suspended Sediments Effects on Aquatic Life

Published on: January 9, 2017

Image-based Lagrangian Particle Tracking in Bed-load Experiments
10:32

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Published on: July 20, 2017

Area of Science:

  • Marine Ecology
  • Benthic Ecology
  • Biophysical Modeling

Background:

  • Benthic suspension feeders often exhibit patchy distributions.
  • Understanding patch stability requires examining organism-environment interactions.
  • Biophysical feedbacks at the patch scale are crucial for ecosystem dynamics.

Purpose of the Study:

  • To develop a numerical model for the pinnid bivalve, Atrina zelandica, to explore patch-scale biophysical feedbacks.
  • To investigate how bivalve density, flow conditions, and suspended sediment concentration influence physiological condition and patch stability.
  • To provide a mechanistic explanation for the patchy occurrence of benthic suspension feeders.

Main Methods:

  • Numerical modeling of Atrina zelandica in cohesive sediments.
  • Simulation of feedbacks between bivalve density, flow, suspended sediment concentration, and bivalve physiology.
  • Analysis of patch stability under varying environmental conditions and bivalve densities.

Main Results:

  • High bivalve density can induce skimming flow, reducing sediment resuspension and affecting suspended sediment concentration.
  • Patch stability is directly dependent on bivalve size and density, given specific flow and background sediment loads.
  • Sudden changes in bivalve density or suspended sediment concentration can significantly alter patch structure and lead to alternative stable states.

Conclusions:

  • Biophysical feedbacks at the patch scale play a critical role in regulating benthic suspension feeder populations.
  • The model highlights the interplay between organisms, hydrodynamics, and sediment dynamics in structuring benthic habitats.
  • Understanding these interactions is key to predicting the resilience and stability of suspension feeder beds.