Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Energy Budgets

Energy Budgets

Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...

Trophic Efficiency

Trophic Efficiency

Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.

Energy Balance

Energy Balance

The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...

ATP Energy Storage and Release

ATP Energy Storage and Release

ATP is a highly unstable molecule. Unless quickly used to perform work, ATP spontaneously dissociates into ADP and inorganic phosphate (Pi), and the free energy released during this process is lost as heat. The energy released by ATP hydrolysis is used to perform work inside the cell and depends on a strategy called energy coupling. Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions, allowing them to proceed.
One example of energy coupling using ATP involves a...

ATP Energy Storage and Release

ATP Energy Storage and Release

ATP is a highly unstable molecule. Unless quickly used to perform work, ATP spontaneously dissociates into ADP and inorganic phosphate (Pi), and the free energy released during this process is lost as heat. The energy released by ATP hydrolysis is used to perform work inside the cell and depends on a strategy called energy coupling. Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions, allowing them to proceed.
One example of energy coupling using ATP involves a...

Osmoregulation in Fishes

Osmoregulation in Fishes

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?

You might also read

Related Articles

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

Sort by

Same author

Cost-Effectiveness of Semaglutide 2.4 mg for Obesity Disease Management in Japan: A Lifetime Economic Modeling Study Incorporating Retreatment Scenarios.

Journal of health economics and outcomes research·2026

Same author

Geriatric nutritional risk index in antifibrotic therapy can predict tolerability and mortality risk.

Scientific reports·2026

Same author

Simultaneous Resection for Type A Thymoma With Synchronous Solitary Pulmonary Metastasis: A Case Report.

Respirology case reports·2026

Same author

Serum interferon-λ3 as a short-term biomarker of disease control in anti-MDA5-positive dermatomyositis-associated ILD.

Scientific reports·2026

Same author

Biological Aging and Survival Outcomes in Patients With Advanced Non-Small Cell Lung Cancer Receiving Systemic Therapy.

Clinical lung cancer·2025

Same author

Risk stratification of acute exacerbations by autoantibodies in patients with idiopathic interstitial pneumonia.

Scientific reports·2025

Search research articles

Related Experiment Video

Updated: May 30, 2026

High Throughput Danio Rerio Energy Expenditure Assay

High Throughput Danio Rerio Energy Expenditure Assay

Published on: January 27, 2016

A full lifecycle bioenergetic model for bluefin tuna.

Marko Jusup¹, Tin Klanjscek, Hiroyuki Matsuda

¹Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, Japan. mjusup@gmail.com

|July 23, 2011

Summary

This summary is machine-generated.

A new bioenergetic model for Pacific bluefin tuna (PBT) predicts growth and reproduction based on environmental factors. Simulations reveal temperature significantly impacts growth and PBT have limited energy reserves, affecting aquaculture.

More Related Videos

Metabolic Profile Analysis of Zebrafish Embryos

Published on: January 14, 2013

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Published on: July 24, 2018

Related Experiment Videos

Last Updated: May 30, 2026

High Throughput Danio Rerio Energy Expenditure Assay

High Throughput Danio Rerio Energy Expenditure Assay

Published on: January 27, 2016

Metabolic Profile Analysis of Zebrafish Embryos

Published on: January 14, 2013

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine

Published on: July 24, 2018

Area of Science:

Aquaculture
Fish bioenergetics
Dynamic Energy Budget theory

Background:

Traditional fish bioenergetic models rely on observed growth and reproduction.
Pacific bluefin tuna (PBT) are of high economic value and receive significant scientific attention.

Purpose of the Study:

To formulate a full lifecycle bioenergetic model for PBT using Dynamic Energy Budget theory.
To predict PBT growth and reproduction based on food availability and environmental temperature.

Main Methods:

Developed a bioenergetic model based on Dynamic Energy Budget principles.
Calibrated the model using physiological data for Pacific bluefin tuna (Thunnus orientalis).
Conducted computer simulations to analyze growth, reproduction, and energy utilization.

Main Results:

Cultivated and wild PBT growth rates differ mainly due to a 6.5°C body temperature difference.
Well-fed PBT can spawn up to 9 batches per season; wild PBT experience sufficient food abundance.
PBT have minimal energy reserves, leading to indistinguishable weight-length relationships and poor starvation resilience.
Larval growth acceleration links to metamorphosis; juvenile growth deceleration relates to internal heat production efficiency.

Conclusions:

Environmental temperature is a key driver of PBT growth rate differences.
PBT's low energy reserves impact their ability to withstand starvation and may explain high Feed Conversion Ratios in aquaculture.
The model provides insights into PBT physiology and ecology, relevant for sustainable aquaculture practices.