Circle hooks, 'J' hooks and drop-back time

A hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus

E. D. Prince, Derke Snodgrass, E. S. Orbesen, J. P. Hoolihan, J. E. Serafy, J. E. Schratwieser

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This study evaluates the performance of two types of non-offset circle hooks (traditional and non-traditional) and a similar-sized 'J' hook commonly used in the south Florida recreational live-bait fishery for Atlantic sailfish, Istiophorus platypterus (Shaw). A total of 766 sailfish were caught off south Florida (Jupiter to Key West, FL, USA) to assess hook performance and drop-back time, which is the interval between the fish's initial strike and exertion of pressure by the fisher to engage the hook. Four drop-back intervals were examined (0-5, 6-10, 11-15 and >15), and hook performance was assessed in terms of proportions of successful catch, undesirable hook locations, bleeding events and undesirable release condition associated with physical hook damage and trauma. In terms of hook performance, the traditionally-shaped circle hook had the greatest conservation benefit for survival after release. In addition, this was the only hook type tested that performed well during each drop-back interval for all performance metrics. Conversely, 'J' hooks resulted in higher proportions of undesirable hook locations (as much as twofold), bleeding and fish released in undesirable condition, particularly during long drop-back intervals. Non-traditional circle hooks had performance results intermediate to the other hook types, but also had the worst performance relative to undesirable release condition during the first two drop-back intervals. Choice of hook type and drop-back interval can significantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.

Original languageEnglish
Pages (from-to)173-182
Number of pages10
JournalFisheries Management and Ecology
Volume14
Issue number2
DOIs
StatePublished - Apr 1 2007
Externally publishedYes

Fingerprint

Istiophorus platypterus
bait
baits
hemorrhage
fishery
fisheries
wounding
fish
Jupiter
damage

Keywords

  • Catch and release
  • Drop-backtime
  • Hook performance

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

Circle hooks, 'J' hooks and drop-back time : A hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus. / Prince, E. D.; Snodgrass, Derke; Orbesen, E. S.; Hoolihan, J. P.; Serafy, J. E.; Schratwieser, J. E.

In: Fisheries Management and Ecology, Vol. 14, No. 2, 01.04.2007, p. 173-182.

Research output: Contribution to journalArticle

Prince, E. D. ; Snodgrass, Derke ; Orbesen, E. S. ; Hoolihan, J. P. ; Serafy, J. E. ; Schratwieser, J. E. / Circle hooks, 'J' hooks and drop-back time : A hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus. In: Fisheries Management and Ecology. 2007 ; Vol. 14, No. 2. pp. 173-182.
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