Figure 2 (IMAGE) Kobe University Caption The life cycles of red-spotted masu salmon juveniles in the hatchery-like environments and natural streams, and their respective percentages: Males that reach early maturation experience an extremely high growth rate in the early stage of their life cycle. These male fish that become ready to reproduce in their first fall are included in the resident phenotype. Credit Tatsuya Tanaka Usage Restrictions Please credit 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.