Survival of adult fishes is critical to the conservation and management of wild populations, particularly for long-lived, slow to reproduce species. Most sturgeon species are of conservation concern, but their long lifespans and large ranges have made estimation of adult survival rates challenging. In this study, acoustic telemetry was used to track 205 lake sturgeon (Acipenser fulvescens) tagged in the St. Clair and Detroit rivers of the Laurentian Great Lakes over seven years (2012–2019). The objective of this study was to determine if annual survival was related to sex, size, tagging location (river), or year post-tagging using Cormack-Jolly-Seber (CJS) models. Annual survival was high among all seven years (range of point estimates: 95–99%) and did not differ based on sex, tagging year, size at time of tagging, or tagging location. Lake sturgeon detection probability on acoustic receivers was high each year (range of point estimates: 82–99%) and increased as the number of receivers in the system increased. High survival rates of lake sturgeon were consistent with levels thought required for lake sturgeon to be self-sustaining in the St. Clair – Detroit river system. Our application of acoustic telemetry detections as input to CJS models demonstrated the usefulness of this approach and should be considered for population assessment studies throughout the Great Lakes and beyond.

成鱼的存活对于野生种群的保护和管理至关重要，特别是对于长寿、繁殖缓慢的物种。大多数鲟鱼物种都受到保护，但它们的长寿命和大范围使得对成鱼存活率的估计具有挑战性。在这项研究中，声学遥测被用来跟踪 205 湖鲟（Acipenser fulvescens) 在劳伦森五大湖的圣克莱尔河和底特律河中标记了七年 (2012-2019)。本研究的目的是使用 Cormack-Jolly-Seber (CJS) 模型确定年生存率是否与性别、大小、标记位置（河流）或标记后年份有关。所有七年的年生存率都很高（点估计范围：95-99%）并且没有因性别、标记年份、标记时的大小或标记位置而异。声学接收器上的湖鲟检测概率每年都很高（点估计范围：82-99%），并且随着系统中接收器数量的增加而增加。湖鲟的高成活率与圣克莱尔-底特律河流系统中湖鲟自给自足所需的水平一致。