Sockeye Salmon (IMAGE) University of California - Santa Cruz Caption One additional year in the ocean makes a big difference in the size of salmon, as seen in these two female sockeye salmon from Pick Creek, Alaska. The top salmon spent three years at sea, the other two years. Credit Andrew Hendry Usage Restrictions For use only with news coverage of this research 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.