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

Gastric Motility01:16

Gastric Motility

1.2K
Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
1.2K
Digestive Functions of the Large Intestine01:20

Digestive Functions of the Large Intestine

726
The large intestine is where the final stages of digestion happen. When the cecum receives chyme, it contains undigested carbohydrates that undergo fermentation. Gut bacteria ferment these carbohydrates to produce short-chain fatty acids that provide some energy and help synthesize essential vitamins.
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
726
Enteric Nervous System: Regulation of GI Motor Activity01:11

Enteric Nervous System: Regulation of GI Motor Activity

775
The Enteric Nervous System (ENS) plays a pivotal role in regulating gastrointestinal or GI motor activity. This complex network of nerves, deeply embedded within the gut wall, responds to changes in the gut environment and receives input from both the autonomic nervous system and the central nervous system. By doing so, the ENS operates various programs tailored to the body's nutritional status and needs.
During periods of fasting, the ENS initiates the migrating myoelectric complex, a...
775
Mechanical and Chemical Digestion in the Small Intestine01:30

Mechanical and Chemical Digestion in the Small Intestine

1.5K
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
1.5K

You might also read

Related Articles

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

Sort by
Same author

Author Correction: Seriola dumerili digestive capacity.

Fish physiology and biochemistry·2026
Same author

Seriola dumerili digestive capacity.

Fish physiology and biochemistry·2026
Same author

Decitabine-induced DNA methylation remodeling reveals targetable biological processes in gilthead seabream pituitary and liver explants.

Epigenetics·2025
Same author

Effect of Biofloc Culture on the Daily Rhythmicity of the Activity and Expression of Digestive Enzymes in Tilapia, <i>Oreochromis niloticus</i>.

Aquaculture nutrition·2025
Same author

Tissue explants as tools for studying the epigenetic modulation of the GH-IGF-I axis in farmed fish.

Frontiers in physiology·2024
Same author

Characterization and comparison of the digestive physiology of two scombrids, Katsuwonus pelamis and Sarda sarda, in the Gulf of Cádiz.

PloS one·2021

Related Experiment Video

Updated: Sep 14, 2025

High-throughput Measurement of Gut Transit Time Using Larval Zebrafish
06:48

High-throughput Measurement of Gut Transit Time Using Larval Zebrafish

Published on: October 23, 2018

7.6K

Understanding rhythms in the digestive functionality of fish gut.

Carmen Navarro-Guillén1, Manuel Yúfera1

  • 1Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), 11519 Puerto Real, Cádiz, Spain.

The Journal of Experimental Biology
|July 23, 2025
PubMed
Summary

Fish possess internal biological rhythms that synchronize their digestive system with environmental cycles. This review explores how these rhythms influence digestion from larval to adult stages, impacting fish health and metabolism.

Keywords:
Cyclic rhythmsDigestive systemEndogenous clockEnvironmental synchroniserFish

More Related Videos

Studying Murine Small Bowel Mechanosensing of Luminal Particulates
10:21

Studying Murine Small Bowel Mechanosensing of Luminal Particulates

Published on: March 18, 2022

2.0K
Author Spotlight: Isolating and Analyzing Intestinal Cells of Zebrafish Larvae for Investigating Transcriptomic Aspects of Gastrointestinal Development
06:36

Author Spotlight: Isolating and Analyzing Intestinal Cells of Zebrafish Larvae for Investigating Transcriptomic Aspects of Gastrointestinal Development

Published on: November 10, 2023

2.0K

Related Experiment Videos

Last Updated: Sep 14, 2025

High-throughput Measurement of Gut Transit Time Using Larval Zebrafish
06:48

High-throughput Measurement of Gut Transit Time Using Larval Zebrafish

Published on: October 23, 2018

7.6K
Studying Murine Small Bowel Mechanosensing of Luminal Particulates
10:21

Studying Murine Small Bowel Mechanosensing of Luminal Particulates

Published on: March 18, 2022

2.0K
Author Spotlight: Isolating and Analyzing Intestinal Cells of Zebrafish Larvae for Investigating Transcriptomic Aspects of Gastrointestinal Development
06:36

Author Spotlight: Isolating and Analyzing Intestinal Cells of Zebrafish Larvae for Investigating Transcriptomic Aspects of Gastrointestinal Development

Published on: November 10, 2023

2.0K

Area of Science:

  • Chronobiology
  • Fish Physiology
  • Gastroenterology

Background:

  • Organisms, including fish, have internal time-control systems synchronized by environmental cues like light and temperature.
  • These biological rhythms optimize species success and minimize energy expenditure across physiological processes.
  • The feeding process and gastrointestinal functions are influenced by both external and internal rhythms, with feeding time potentially synchronizing digestive functions.

Purpose of the Study:

  • To review the role of cyclic rhythms in regulating the fish digestive process across various developmental stages.
  • To examine rhythmic regulation at molecular, cellular, and organ levels within the fish gastrointestinal system.
  • To synthesize current knowledge for future research on fish metabolic responses and health.

Main Methods:

  • Literature review focusing on chronobiology and fish digestive physiology.
  • Analysis of studies examining rhythmic regulation from cellular to organ levels.
  • Comparative approach utilizing the biological diversity of fish.

Main Results:

  • Cyclic rhythms significantly influence multiple stages of the fish digestive process, from nutrient detection to absorption.
  • Rhythmic regulation impacts gastrointestinal tract functionality, luminal conditions, and gut microbiota composition.
  • Feeding time acts as a synchronizer for digestive functions, influencing hormonal and immunological responses.

Conclusions:

  • Understanding rhythmic regulation of fish digestion is crucial for improving fish health and metabolic management.
  • The study of biological rhythms in fish provides a valuable comparative model for other animal groups.
  • Further research is needed to fully elucidate the complex interplay between rhythms and digestive processes in fish.