Teleost Fish

Teleost fish are ray-finned bony vertebrates that comprise most living fish species and provide important models for studying vertebrate biology and engineering biological systems. Their gills exchange gases across thin, vascularized surfaces, while species-specific traits such as buoyancy control, rapid development, and regenerative capacity support experimental manipulation. In bioengineering, zebrafish and other teleosts are used for genetic screening, developmental imaging, toxicology, disease modeling, and evaluation of engineered tissues or biomaterials. These models connect molecular design with whole-organism responses, helping researchers assess function, safety, and regeneration before translation to larger animals or clinical applications.

Teleost Fish - Related Videos

Research

JoVE Journal - Neuroscience

Healthy Brain-pituitary Slices for Electrophysiological Investigations of Pituitary Cells in Teleost Fish

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Cited by 8 •

2018

The article describes an optimized protocol for making viable brain-pituitary tissue slices, using the teleost fish medaka (Oryzias latipes), followed by electrophysiological recordings of pituitary cells using the patch-clamp technique with the perforated patch configuration.

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

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Cited by 2 •

2017

A series of basic methods to enable the study of the reproductive ecology of fish kept in aquaria are described. These are useful protocols for collecting fish using SCUBA, transporting live fish, and observing the reproductive behavior of wild-caught fish kept in aquaria.

Education

JoVE Core - Biology

Osmoregulation in Fishes

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2019

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? Fish employ osmoregulatory strategies to balance bodily levels of water and dissolved ions (i.e., solutes), such as sodium and chloride. Imagine two solutions separated by a membrane that is permeable to water.

Research

JoVE Journal - Biology
Free Sample

Swimming Performance Assessment in Fishes

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Cited by 56 •

2011

The lives of the majority of fish are predicated on swimming. This protocol describes techniques for capturing a range of swimming modes available to individual and schooling fish, and includes metrics associated with swimming physiology and behaviour.

Research

JoVE Journal - Environment
Free Sample

Necropsy-based Wild Fish Health Assessment

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Cited by 21 •

2018

The health of wild fishes can be used as an indicator of aquatic ecosystem health. Necropsy-based fish health assessments provide documentation of visible lesions or abnormalities, data used to calculate condition indices as well as the opportunity to collect tissues for microscopic evaluation, gene expression and other more in-depth analyses.

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