Plankton Mesh Filtration
Plankton Mesh Filtration - Related Videos
05:58
Large Volume (20L+) Filtration of Coastal Seawater Samples
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Cited by 16 •
2009
This video documents large volume (≥20 L) filtration of microbial biomass, ranging between 0.22μm and 2.7μm in diameter, from the water column.
01:32
Filtration and Urine Formation
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2019
The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys. Blood enters the renal...
01:26
Glomerular Filtration: Net Filtration Pressure
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2025
Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP). GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal tubule,...
10:32
Transvaginal Mesh Insertion in the Ovine Model
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Cited by 11 •
2017
This protocol describes mesh implantation in the ovine rectovaginal septum using a single vaginal incision technique, with and without the trocar-guided insertion of anchoring arms.
11:47
Concentration of Metabolites from Low-density Planktonic Communities for Environmental Metabolomics using Nuclear Magnetic Resonance Spectroscopy
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Cited by 15 •
2012
A method for metabolite extraction from microbial planktonic communities is presented. Whole community sampling is achieved by filtration onto specially prepared filters. After lyophilization, aqueous-soluble metabolites are extracted. This approach allows for application of environmental metabolomics to trans-omics investigations of natural or experimental microbial communities.
FAQs
Mesh size sets the size fraction retained from the water. A mesh with smaller openings retains smaller plankton along with larger organisms and particles, whereas larger openings favor collection of larger size classes. Selecting the mesh therefore determines whether a study emphasizes particular portions of the plankton community and directly affects the observed size distribution.
As water moves through the net or sieve, particles and organisms are separated according to their size relative to the mesh openings. Material larger than those openings remains in the sample, while smaller material can pass through with the water. This size-based retention creates a concentrated fraction suitable for subsequent biological examination.
Microscopy allows researchers to examine the concentrated material directly and assess which plankton forms are present. The resulting observations can support estimates or descriptions of community composition, abundance, and size distribution. Because the sample represents a selected mesh fraction, interpretation should relate those findings to the size range the mesh was able to retain.
A study begins by choosing a net or sieve with a defined mesh size suited to the plankton fraction of interest. Water is then passed through the mesh, and the retained material is collected as a concentrated sample. Researchers can examine that sample with microscopy or other biological methods to characterize the retained community.
Researchers may apply Plankton Mesh Filtration when they need concentrated plankton samples for studies of aquatic food webs, biodiversity, environmental change, or water quality. The technique is useful because the retained material can be examined biologically, while the selected mesh provides a defined size-based perspective on the organisms and particles present.
The method supports analysis of both aquatic microbial and metazoan communities by concentrating organisms retained within a chosen mesh fraction. Researchers can then compare the composition, abundance, and size distribution represented in that sample. In biology, these measurements help connect plankton community patterns with broader questions about biodiversity, food webs, and changing aquatic conditions.