Illuminating ion pathways: The molecular underpinnings of larval mummichog ion regulation

This fluorescent microscopy image depicts a larval mummichog with ion-transporting cells (ionocytes) labeled in green. These specialized cells play a crucial role in ion regulation, which is essential for the survival of fishes in marine, freshwater and brackish water environments. These cells are found on the yolk sac, skin and gills of developing mummichog, highlighting the elaborate physiological mechanisms regulating ion exchange. This image provides a stunning visualization of the molecular processes that enable mummichog to adapt to various aquatic environments.