Signs of gas bladder disease (IMAGE)

Norwegian University of Science and Technology

Signs of gas bladder disease

Caption

This small trout was found in the Otra River, 20 km below one of Norway's largest power stations. It had all the signs of gas bladder disease: protruding eyes, bleeding, infection and wear and tear on the fins. 

Credit

Photo: Ulrich Pulg, NORCE.

Usage Restrictions

Use only in association with articles about this research and with proper credit.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.