Abstract Mexican flag longline fishing vessels operating in tropical waters of the northeastern Pacific Ocean commonly target and land silky sharks (Carcharhinus falciformis). In this study silky sharks captured by Mexican flag longline fishing vessels in the northeastern Pacific Ocean and brought onboard were tagged and released with pop-up satellite archival tags (PSATs), following removal of hooks or cutting gangions as close to the hook as feasible, to evaluate their post-release survival (PRS). The PRS rate estimated using Kaplan - Meier survival analyses was 84.8 % (95 % CI: 71.0 %–100 %) for 63 silky sharks. Utilizing a rope noose to lift sharks aboard vessels was demonstrated to be an effective handling method. The 58 silky shark survivors were at liberty with PSATs attached for an average of 102 days (range: 1–298 d). Average linear displacement for 46 silky sharks at liberty for > 30 d was 512 nmi (range: 45–927 nmi), indicating relatively rapid widespread dispersion from release locations.

中文翻译：

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在东北太平洋被墨西哥国旗延绳钓渔船捕获后，丝鲨（Carcharhinus falciformis）的释放后存活率

摘要 在太平洋东北部热带水域作业的墨西哥国旗延绳钓渔船通常瞄准和登陆丝鲨（Carcharhinus falciformis）。在这项研究中，被墨西哥国旗延绳钓渔船在东北太平洋捕获并带上船的丝鲨被贴上弹出式卫星档案标签 (PSAT)，在尽可能靠近钩子去除钩子或切割成群后，它们被贴上标签并释放，评估其释放后存活率 (PRS)。对于 63 条丝鲨，使用 Kaplan-Meier 生存分析估计的 PRS 率为 84.8%（95% CI：71.0%–100%）。使用绳索将鲨鱼吊上船已被证明是一种有效的处理方法。58 名丝鲨幸存者在平均 102 天（范围：1-298 天）的情况下自由活动，并附有 PSAT。