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

What is Variation?01:14

What is Variation?

17.6K
Apart from the measures of central tendency, distribution, outliers, and the changing characteristics of data with time, an important characteristic of any data set is its variation or spread. In some data sets, the data values are concentrated closely near the mean; in others, the data values are more widely spread out from the mean.
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
17.6K
Animal Mitochondrial Genetics02:59

Animal Mitochondrial Genetics

9.0K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.0K
Variation: Normal Distribution, Range, and Standard Deviation02:32

Variation: Normal Distribution, Range, and Standard Deviation

26.9K
In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
26.9K
Variation01:19

Variation

7.7K
An important characteristic of any set of data is the variation in the data. In some data sets, the data values are concentrated closely near the mean; in other data sets, the data values are more widely spread out from the mean. The most common measure of variation, or spread, is the standard deviation, which is the square root of variance.
When independent and dependent variables are plotted on a scatter plot, the slope of a line is a value that describes the rate of change between the two...
7.7K
Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

6.7K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
6.7K
Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

4.1K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
4.1K

You might also read

Related Articles

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

Sort by
Same author

Plasticity of hepatic metabolism in Arctic char (Salvelinus alpinus) in response to cyclic hypoxia.

Comparative biochemistry and physiology. Part D, Genomics & proteomics·2026
Same author

The magic of mushrooms: psilocybin influences behavior in the mangrove rivulus fish, <i>Kryptolebias marmoratus</i>.

Frontiers in behavioral neuroscience·2026
Same author

Lack of repeatability in red muscle mitochondrial function over time and across oxygen conditions in a teleost fish.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same author

Mitochondrial respiratory capacities are not linked to individual variation in hypoxia tolerance and standard metabolic rate in European seabass Dicentrarchus labrax.

Journal of fish biology·2026
Same author

Gut microbial composition varies with host metabolic phenotype in juvenile Atlantic salmon.

The Journal of experimental biology·2026
Same author

Pharmacokinetics of oral Δ9-tetrahydrocannabinol (THC) administration in vervet monkeys.

Journal of cannabis research·2026
Same journal

Chronic limb loading results in remarkable load carriage economy in growing fowl.

Proceedings. Biological sciences·2026
Same journal

Motion-from-structure in face perception: expectations of natural face motion depend on face shape.

Proceedings. Biological sciences·2026
Same journal

Unification and generalization of models of zygote survival.

Proceedings. Biological sciences·2026
Same journal

Phenological type- and diameter-dependent effects of individual light availability and interannual climate variation on tree growth.

Proceedings. Biological sciences·2026
Same journal

Interaction range of common goods shapes Black Queen dynamics beyond the cheater-cooperator narrative.

Proceedings. Biological sciences·2026
Same journal

Stingray spine diversity reflects performance trade-offs linked to puncture and breakability.

Proceedings. Biological sciences·2026
See all related articles

Related Experiment Video

Updated: Jan 20, 2026

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

9.1K

Differences in mitochondrial efficiency explain individual variation in growth performance.

Karine Salin1, Eugenia M Villasevil1, Graeme J Anderson1

  • 1Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK.

Proceedings. Biological Sciences
|August 22, 2019
PubMed
Summary
This summary is machine-generated.

Individual differences in how efficiently fish convert food into energy, specifically adenosine triphosphate (ATP), significantly impact their growth rates. This mitochondrial efficiency, not just food intake, explains variations in growth performance.

Keywords:
ATP/O ratiobrown troutenergy metabolismintraspecificmitochondrial plasticityprotein synthesis

More Related Videos

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills
06:52

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Published on: September 17, 2019

6.7K
Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification
09:36

Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification

Published on: November 15, 2010

23.5K

Related Experiment Videos

Last Updated: Jan 20, 2026

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

9.1K
Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills
06:52

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Published on: September 17, 2019

6.7K
Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification
09:36

Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification

Published on: November 15, 2010

23.5K

Area of Science:

  • Physiology
  • Metabolic Biochemistry
  • Animal Ecology

Background:

  • Intraspecific variation in growth rates is debated, with energy metabolism proposed as a key driver.
  • It is unclear if growth variation stems from resource acquisition or metabolic efficiency.

Purpose of the Study:

  • To investigate the link between individual metabolic efficiency and growth rate in juvenile brown trout.
  • To determine if variations in adenosine triphosphate (ATP) production efficiency by mitochondria influence protein synthesis and whole-body growth.

Main Methods:

  • Quantified individual variation in mitochondrial metabolic efficiency (ATP produced per oxygen consumed) in liver and muscle.
  • Assessed effects on protein synthesis rates and whole-body growth in individually fed trout under high and low rations.
  • Utilized juvenile brown trout (Salmo trutta) under controlled nutritional conditions.

Main Results:

  • Growth performance varied over tenfold among individuals, even within the same ration group.
  • Higher mitochondrial efficiency in the liver was associated with superior whole-body growth performance.
  • Individual differences in metabolic efficiency explained growth variation independently of food intake.

Conclusions:

  • Inter-individual variation in mitochondrial ATP production efficiency is a significant factor in explaining differences in growth performance.
  • Metabolic efficiency, rather than solely food intake, plays a crucial role in intraspecific variation of animal performance.
  • This highlights the importance of mitochondrial properties in understanding whole-animal physiological variation.