Ray Catch in Sri Lanka (IMAGE) Cell Press Caption Rays are often an incidental catch in trawl fisheries. This photograph shows blue spot lagoon rays were captured in a trawl fishery in Sri Lanka. Credit Colin Simpfendorfer Usage Restrictions Credit Required. License Licensed 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.