Do Freshwater Fish Lose Salts to Their Environment? Understanding Osmoregulation Challenges
Freshwater fish do not lose salts to their environment. They retain salts and produce large amounts of dilute urine. Their specialized kidneys help manage osmotic balance by filtering out excess water. In contrast, marine fish lose salts. They excrete excess salt to conserve water and produce concentrated urine. Osmoregulation involves a series of physiological adjustments … Read more