Fish Tissue Detection
Fish Tissue Detection - Related Videos
10:16
Detection of Viral RNA by Fluorescence in situ Hybridization (FISH)
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Cited by 35 •
2012
A fluorescence in situ hybridization (FISH) method was developed to visually detect viral genomic RNA using fluorescence microscopy. A probe is made with specificity to the viral RNA that can then be identified using a combination of hybridization and immunofluorescence techniques. This technique offers the advantage of identifying the localization of the viral RNA or DNA at steady-state, providing information on the control of intracellular virus trafficking events.
07:25
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.
02:32
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.
03:01
Detection of Fish Pathogens Using Variable Number Tandem Repeat (VNTR) Analysis
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2025
Source: Gulla, S., et al. Multi-locus Variable-number Tandem-repeat Analysis of the Fish-pathogenic Bacterium Yersinia ruckeri by Multiplex PCR and Capillary Electrophoresis. J. Vis. Exp. (2019).This video demonstrates the procedure for separating fluorescently labeled variable number tandem repeat (VNTR) amplicons, derived from a fish-pathogenic bacterium, using capillary electrophoresis to generate size-specific electropherogram profiles for bacterial identification.
16:03
A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
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Cited by 6 •
2015
This bioassay employs a model predatory fish to assess the presence of feeding-deterrent metabolites from organic extracts of the tissues of marine organisms at natural concentrations using a nutritionally comparable food matrix.
FAQs
Specific markers help separate fish-derived material from other components in a biological sample. In immunostaining, antibody binding identifies the selected target and produces a measurable signal, while species- or cell-specific selection increases the relevance of that signal. This specificity supports more reliable localization of fish cells or tissue during host-response and infection studies.
Immunostaining identifies target material through antibody binding and a visible or measurable signal within processed tissue. Nucleic-acid amplification instead detects target nucleic acid after tissue processing. The two approaches therefore emphasize different detectable features, allowing investigators to select the approach that best fits whether they need marker-based tissue localization or amplification-based evidence of target material.
Localization shows where fish-derived cells or tissue occur within a biological sample rather than only indicating that target material is present. This spatial information can be related to pathogen distribution, tissue damage, or immune-cell recruitment. In infection research, mapping these relationships helps connect detected material with changes occurring in particular organs or tissue regions.
Marker-based detection provides a way to identify fish-derived material separately from microbial material in the same biological sample. When paired with tissue processing and appropriate species- or cell-specific markers, the resulting signals can be interpreted in relation to pathogen distribution and host damage. This distinction strengthens analysis of how infection affects host tissues and responses.
A typical workflow begins with tissue processing, followed by application of a species- or cell-specific detection approach. Immunostaining uses antibody binding to reveal the selected target, whereas nucleic-acid amplification reveals target material through amplification and a measurable signal. The resulting detection is then used to assess localization, tissue damage, pathogen distribution, or immune-cell recruitment.
Researchers can use this approach during experimental infection studies to examine where fish-derived tissue or cells are found and how those locations relate to infection. Detection supports assessment of pathogen distribution, tissue damage, and immune-cell recruitment. It also enables comparisons of how pathogens affect different organs, helping connect microscopic findings with host responses.
The method can generate evidence for histopathology, disease diagnosis, and experimental infection analysis. It can reveal target material as a measurable signal, map its distribution within samples, and support evaluation of tissue damage or immune-cell recruitment. These outcomes make detection useful for comparing organ involvement and characterizing host responses to infectious disease.