Salmon Otolith Data from the 2020 Gulf of Alaska International Year of the Salmon Expedition@en

Otoliths were collected from salmon in the Northeast Pacific Ocean and analyzed for information about age and growth. These data were collected as part of the International Year of the Salmon (IYS) Gulf of Alaska High Seas Expedition conducted in February and March 2019, to further improve the understanding of factors impacting salmon early marine winter survival. Otolith thermal marks were also examined to help determine stock origin for pink and chum salmon.研究人员从北太平洋东部的鲑鱼体内采集耳石（otolith），并对其开展分析以获取鲑鱼的年龄与生长相关信息。本数据集采集自2019年2月至3月实施的国际鲑鱼年（International Year of the Salmon, IYS）阿拉斯加湾公海考察航次相关工作，旨在进一步加深对影响鲑鱼海洋早期冬季存活的各类因素的认知。此外，研究人员还对耳石温度印记进行了检测，以辅助确定粉鲑与狗鲑的种群起源。