Dan 🐟 C

@zebrafish007.bsky.social

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Zebrafish, blood and lymphatic vessels, microscopes, imaging, aquaculture, cavefish, 3D printing, science. views my own.

A video sequence showing zebrafish tail regeneration over the course of two weeks. A color image is shown on the left, and an image showing transgenic activation indicating a loss of epigenetic silencing is shown in green on the right, mostly in the tips of the fin rays. Green fluorescence turns on at one day post tail clip and turns off again by the end of the video.
A video showing the location of the Axillary Lymphoid organ just above the pectoral fin in an adult zebrafish. the video goes on to show blood and lymphatic vessels in the ALO, and a close up of different types of immune cells quickly moving around in the ALO.
A rotating 3D image of a transparent gray lobe above the pectoral fin in an adult zebrafish with an intertwined network of magenta blood vessels and green lymphatic vessels in the middle.
Lateral view of an adult transgenic zebrafish (facing left) shown in three colors. Autofluorescence is shown in gray, faintly showing the scale pattern, the fish outline, and more predominantly showing the fin rays (bones of the fins). Lymphatic vessels are shown in green, with a complex network around the head and eye of the fish, and a herring-bone pattern down the body. Neutrophils, a type of white blood cell, are shown in magenta as tiny speckles all over the fish, with a higher concertation around the eye, behind the operculum (gill cover), and at the base of the tail.
A highly detailed gray image of the dorsal view of a zebrafish head pointing to the left with two large black eyes on either side. A complex network of magenta blood vessels look like tangled spaghetti in the center (brain region) of the image. There are dozens of ameba-shaped green cells around the brain blood vessels and a few well-defined green lymphatic vessels on either side of the head. Protruding from the skin on each side of the head, to the right (posterior) to the eye, there are three volcano-like structures with long, transparent, hair-like projections. These are hair cells that the fish uses to sense changes in water flow.
highly detailed dorsal view of three fish with scales and lymphatic vessels shown in different colors with curved bodies as if the fish were swimming. the two fish on the outside are facing downward, and the fish in the middle is facing upward. the left most fish has magenta scales and green lymphatic vessels, the center fish has blue scales and orange lymphatic vessels, and the right fish has green scales and purple lymphatic vessels.