Circle Hooks vs. J Hooks (IMAGE) North Carolina State University Caption Circle hooks (bottom) are less likely to mortally wound bill fish than J hooks (top). Credit Paul Rudershausen, North Carolina State University 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.