The survival rate and population size of Indo‐Pacific humpback dolphins ( Sousa chinensis ) in Xiamen, China, were estimated from vessel‐based surveys during 2007–2010. Over the course of 202 d (881.1 observation hours), 76 groups were observed, and 52 dolphins were successfully identified. The Cormack‐Jolly‐Seber model estimated a constant apparent survival of 0.948 (95% CI: 0.922–0.966). Based on the open/POPAN model, the po...