Characteristics and trends in the nighttime and daytime United States Atlantic recreational swordfish fishery based on fishery-dependent data

Davis, Katie; Cudney, Jennifer; Blankinship, David R.

doi:10.5343/bms.2016.1020

Cited by 3 publications

(1 citation statement)

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“…With the bigeye thresher (from our own study and others) consistently occupying comparatively shallower waters at night, and the scalloped hammerhead in similar depth ranges, both of these species are at risk of overlapping with nighttime operating tuna and swordfish commercial fisheries in the GOM [35,52,53]. In addition, there is a growing recreational and commercial industry of daytime deepdrop swordfish fisheries [54] that can heavily interact with bigeye threshers as they remain in deeper waters during the day. These fisheries routinely alter gear characteristics, location, fishing depth, and time of day of deployment to maximize catch rates of their target species; however, these adjustments can then alter the composition (e.g., species, sex, maturity) and magnitude of bycatch [52,53].…”

Section: Potential For Fishery Interactionsmentioning

confidence: 61%

Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico

Anderson

Meese

Drymon

et al. 2022

Fishes

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Understanding habitat use of elasmobranchs in pelagic environments is complicated due to the mobility of these large animals and their ability to move great distances in a three-dimensional environment. The Gulf of Mexico is a region where many highly migratory pelagic shark species occur, while in close proximity to coastal, anthropogenic activity including recreational and commercial fisheries. This study provides summary information on the vertical habitat use for a single male scalloped hammerhead and a single male bigeye thresher that were each caught and tagged with an archiving satellite tag. The scalloped hammerhead occupied shallow depths (<100 m) over the continental shelf during the 90 d deployment. The bigeye thresher exhibited strong patterns of diel vertical migrations by occupying depths below the thermocline (>350 m) during the day, then occupying shallower depths (50–100 m) during the night. By providing summary information, this note urges future research to provide scientific information on pelagic, highly migratory species for management efforts in the Gulf of Mexico region.

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Section: Potential For Fishery Interactionsmentioning

confidence: 61%

Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico

Anderson

Meese

Drymon

et al. 2022

Fishes

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Post release survival of swordfish (Xiphias gladius) caught by a recreational fishery in temperate waters

Tracey

Pepperell²,

Wolfe

2023

Fisheries Research

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Characterization of a developing recreational deep-drop fishery for swordfish off southern California

Aalbers

Wang

Bellquist

et al. 2022

California Fish and Wildlife Journal

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California recreational anglers have recently started using specific deep-drop tackle to target swordfish (Xiphius gladius) below the thermocline during the daytime. Increased rod-and-reel fishing effort stems from promising experimental fishing trials of a recently approved commercial gear type off California (deep-set buoy gear), along with the widespread growth of deep-drop recreational fisheries for swordfish around the world. The rapid development and vast growth potential in this emerging recreational fishery, has outpaced the implementation of sampling programs to accurately quantify swordfish catch, effort, and economic output. We characterized recent sportfishing practices for swordfish and reviewed available California recreational fishery data sources. Findings suggest a sharp increase in estimated catch relative to previous decades and a major shift in the techniques used by local fishers to target swordfish beginning in September 2019. Recent increases in recreational swordfish catches aligned directly with heightened tackle sales for gear specific to deep-drop practices. Given the increased deep-set effort for swordfish within the region and the limited coverage of existing private-vessel catch documentation, additional monitoring efforts are needed to better gauge the potential social, economic, and ecological impacts of this emerging recreational fishery.

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Characteristics and trends in the nighttime and daytime United States Atlantic recreational swordfish fishery based on fishery-dependent data

Cited by 3 publications

References 0 publications

Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico

Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico

Post release survival of swordfish (Xiphias gladius) caught by a recreational fishery in temperate waters

Characterization of a developing recreational deep-drop fishery for swordfish off southern California

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