The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
J. E. Schratwieser - One of the best experts on this subject based on the ideXlab platform.
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Circle hooks, ‘J’ hooks and drop‐back time: a hook performance study of the south Florida recreational live‐bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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Circle hooks, ‘J’ hooks and drop-back time: a hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
Eric D. Prince - One of the best experts on this subject based on the ideXlab platform.
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Circle hooks, ‘J’ hooks and drop‐back time: a hook performance study of the south Florida recreational live‐bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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Circle hooks, ‘J’ hooks and drop-back time: a hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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A Comparison of Circle Hook and "J" Hook Performance in Recreational Catch-and-Release Fisheries for Billfish
2002Co-Authors: Eric D. Prince, Mauricio Ortiz, Arietta VenizelosAbstract:This study evaluates the performance of circle and comparable-size "J" hooks on Atlantic and Pacific sailfish Istiophorus platypterus and, to a lesser extent, on Pacific blue marlin Makaira nigricans. Terminal gear performances were assessed in terms of fishing success, hook location, and bleeding associated with physical hook damage and trauma. Evaluations of trolling with dead bait took place off Iztapa, Guatemala, during the spring and summer of 1999, and assessment of drifting/kite fishing with live bait took place off South Florida, during the summer of 1999. Three hundred and sixty Pacific sailfish were caught in Iztapa, Guatemala, to assess terminal gear perfor- mance; 235 sailfish were on circle hooks, and 125 were on "J" hooks. Circle hooks used on sailfish had hooking percentages (i.e., fish hooked/fish bite) that were 1.83 times higher compared with "J" hooks. Once the fish were hooked, no difference in catch percentage (i.e., fish caught/fish hooked) between hook types was detected. Sig- nificantly more sailfish were hooked in the corner of the mouth using circle hooks (85%), as compared with "J" hooks (27%). In contrast, significantly more sailfish were deep hooked in the throat and stomach with "J" hooks (46%), as compared with circle hooks (2%). Only one sailfish (1%) was foul hooked using circle hooks, while 11 (9%) sailfish caught on "J" hooks were foul hooked. Sailfish caught on "J" hooks are 21 times more likely to suffer hook-related bleeding than those caught on circle hooks. Seventy-five Atlantic sailfish were caught using circle hooks in the South Florida live bait recreational fish- ery to assess possible differences in hook performance between circle hooks with and without an offset point. No difference in catch percentage or bleeding was found between circle hooks with: no offset; minor offset (about 4 degrees); or severe offset points (about 15 degrees). However, the percentage of deep hooking in the throat and stomach for circle hooks with a severe offset (44%) was comparable to the deep hooking percentage for "J" hooks (46%) used in the Guatemala study. A comparison of circle and "J" hook catch rates of Pacific sailfish and blue marlin, using logbook catch statistics from recreational fishing off Iztapa, Guatemala, was also conducted. In gen- eral, use of circle hooks resulted in measures of fishing success that were comparable to or higher than "J" hooks. Circle hooks also minimized deep hooking, foul hooking, and bleeding. Thus, the use of circle hooks has con- siderable potential for promoting the live release of billfish into recreational fisheries.
J. E. Serafy - One of the best experts on this subject based on the ideXlab platform.
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Circle hooks, ‘J’ hooks and drop‐back time: a hook performance study of the south Florida recreational live‐bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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Circle hooks, ‘J’ hooks and drop-back time: a hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
John P. Hoolihan - One of the best experts on this subject based on the ideXlab platform.
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Circle hooks, ‘J’ hooks and drop‐back time: a hook performance study of the south Florida recreational live‐bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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Circle hooks, ‘J’ hooks and drop-back time: a hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
D. Snodgrass - One of the best experts on this subject based on the ideXlab platform.
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Circle hooks, ‘J’ hooks and drop‐back time: a hook performance study of the south Florida recreational live‐bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
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Circle hooks, ‘J’ hooks and drop-back time: a hook performance study of the south Florida recreational live-bait fishery for sailfish, Istiophorus platypterus
Fisheries Management and Ecology, 2007Co-Authors: Eric D. Prince, D. Snodgrass, Eric S. Orbesen, John P. Hoolihan, J. E. Serafy, J. E. SchratwieserAbstract: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 s), 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 undes- irable 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 signifi- cantly change hook wounding, and different models of non-offset circle hooks should not be assumed to perform equivalently.
