Estimating post-release mortality of long-line caught tropical tunas in the Pacific Ocean

Muir, Jeff; Barker, Richard J.; Hutchinson, Melanie; Leroy, Bruno; Nicol, Simon; Phillips, Joe Scutt

doi:10.1016/j.fishres.2021.106194

Cited by 1 publication

(1 citation statement)

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“…Individuals caught on pole and line fishing gear with eye damage, impact trauma, excessive bleeding, or mouth or esophageal damage due to hooking have lower rates of survival than conspecifics that did not suffer one or more of these traumas [45]. Similarly, fish caught and tagged on commercial longline vessels have reduced survival the longer the time-period is between hooking and retrieval [61,71,73]. Disruption of physiological homeostasis associated with capture is also common in fishes (e.g., [35,60,94]).…”

Section: Fish Capture and Handlingmentioning

confidence: 99%

Recommendations towards the establishment of best practice standards for handling and intracoelomic implantation of data-storage and telemetry tags in tropical tunas

et al. 2023

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Archival (data-storage) and telemetry (acoustic and radio) tags are commonly used to provide data on the behavior and physiology of organisms, as well as data on their surrounding environment. For fishes, it is often advantageous to implant tags in the peritoneal cavity (i.e., intracoelomic implantation). The literature on best practices is limited for marine species, and near absent for tunas despite their regular application. We identify recommended practices using laparotomy in tropical tuna species following observations from thousands of tags implantations undertaken during implementation of several tagging programs across the Pacific. These recommended practices include descriptions of preferred tagging stations and equipment, fish selection, surgical procedures, and return of the fish to the wild. While these recommended practices were developed specifically for tropical tuna species, they are also likely applicable for other pelagic fishes. We present these guidelines to guide and promote the development of best practices for such procedures on pelagic species.

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