Freshwater Fish: Are They Isosmotic? Exploring Osmoregulation and Adaptation Mechanisms
Freshwater fish are hypertonic compared to their environment. They regulate water intake through osmoregulation. Water diffuses into their bodies via gills. Unlike saltwater fish, they drink little. They maintain osmotic balance using their kidneys and other mechanisms to achieve homeostasis for their internal fluids. Osmoregulation involves physiological processes that help freshwater fish excrete the excess … Read more



