Rainbow trout usually prefer cool water, but some specially bred strains handle heat much better. Scientists put two groups through a month of increasing temperatures—from 57°F to 82°F—and watched how their bodies reacted. The heat-tolerant fish, picked from families known to handle warmth, kept the
Colorado has a problem with its fish. The Colorado Department of Health and Environment has put out a warning. It is about rainbow trout from Runyon Lake. These fish have high levels of a chemical called perfluorooctane sulfonate (PFOS). This chemical is a type of PFAS. PFAS are harmful to humans. T
The liver of triploid rainbow trout faces unique challenges in low-oxygen waters. To understand how these fish cope, researchers dug into the world of tiny gene regulators called miRNAs. They found 45 miRNAs that change their activity when oxygen levels drop. These miRNAs don't work alone. They team
Have you ever wondered how fish deal with chemicals in their environment? Scientists have been exploring this by studying fish cells in the lab. They looked at how well these cells can break down, or biotransform, harmful pollutants. They used two systems: small parts of cells from brown trout and r
