Giant trevally (Caranx ignobilis, GT) are growing in popularity as a target for tourism-based recreational fisheries throughout their range in the Indo-Pacific. Although predominately catch-and-release (C&R), to date there is no species-specific scientific evidence to support capture and handling guidelines. As such, we examined how GT caught via fly fishing gear while in shallow water responded to capture and handling in the Alphonse Island Group, Republic of the Seychelles. Specifically, we evaluated the physical injury for GTs captured via fly fishing gear, as well as their reflex impairment and post-release activity (using tri-axial accelerometer biologgers) following three air exposure treatments (0 s, 15 s, 30 s). We also had a reference treatment where GTs were caught and landed quickly via a handline, and not exposed to air (0 s) prior to release. Hooking location for both gear types was predominately the jaw or corner of the mouth (fly fishing, n = 30; 83.3%; handline; n = 12, 85.7%), but one fish hooked in a critical location for each capture gear. Across all treatments, only one fish (2%) in the handline treatment was considered a potential short-term post-release mortality following being deeply hooked in the gills and subsequently losing equilibrium upon release. GT reflex impairment and overall post-release activity measured via overall dynamic body acceleration were not influenced by fight time and air exposure treatments used in our study. For GTs across all treatments, locomotor activity was lower in the initial minutes following release than during the second half of the ten minute monitoring period. Overall, our study suggests that GTs in the Alphonse Island Group are resilient to being caught via fly fishing, handled, and air exposed for up to 30 s. However, given the diversity of angling locations for GTs (e.g., shallow flats, deeper reefs) and gear types (e.g., conventional tackle, lures with several treble hooks), additional assessments are needed to help act as the foundation for more universal best practices that can inform management plans for GT recreational fisheries.

巨型鲹 ( Caranx ignobilis, GT) 作为在印度-太平洋范围内以旅游为基础的休闲渔业的目标越来越受欢迎。虽然主要是捕获和释放 (C&R)，但迄今为止还没有特定物种的科学证据支持捕获和处理指南。因此，我们研究了在塞舌尔共和国阿尔方斯岛群，在浅水中通过飞钓渔具捕获的 GT 如何响应捕获和处理。具体来说，我们评估了在三种空气暴露处理（0 秒、15 秒、30 秒）后通过飞钓设备捕获的 GT 的身体损伤，以及它们的反射障碍和释放后活动（使用三轴加速度计生物记录器）。我们还进行了参考处理，其中 GT 被抓住并通过手线快速着陆，并且在释放前不暴露在空气中（0 秒）。两种渔具的钩挂位置主要是下巴或嘴角（飞钓，n = 30；83.3%；手线；n = 12, 85.7%），但每个捕捞工具的关键位置都有一条鱼钩住。在所有处理中，只有一条鱼（2%）在手线处理中被认为是潜在的短期释放后死亡率，因为它被深深地钩在鳃中，随后在释放时失去平衡。通过整体动态身体加速度测量的 GT 反射障碍和整体释放后活动不受我们研究中使用的战斗时间和空气暴露治疗的影响。对于所有治疗中的 GT，在释放后的最初几分钟内，运动活动低于十分钟监测期的后半段。总体，我们的研究表明，Alphonse Island Group 中的 GT 能够抵抗通过飞钓、处理和暴露在空气中长达 30 秒而被捕获的情况。然而，鉴于 GT 的垂钓地点（例如，浅滩、较深的珊瑚礁）和渔具类型（例如，传统钓具、带有多个三钩的诱饵）的多样性，需要进行额外的评估，以帮助作为更普遍的最佳实践的基础可以为 GT 休闲渔业的管理计划提供信息。