Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery
Southeast Fisheries Science Center
Document
(DOC)
| ID: 22667
| Published / External
Created: 2014-11-24
|
Last Modified: 2022-08-09
Project (PRJ) | ID: 4822
ID: 22667
Document (DOC)
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Item Identification
* » Title | Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery |
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Short Name | Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery |
* Status | Completed |
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• Publication Date | 2002-07-01 |
* » Abstract |
Research was conducted in 2002 and 2003 by NOAA's National Marine Fisheries Service, Southeast Fisheries Science Center, to investigate changes in hook design and bait type to reduce the bycatch of sea turtles on pelagic longlines in the western North Atlantic Ocean. The effectiveness of 18/0-20/0 circle hooks and 10/0 Japanese tuna hooks with squid (Illex spp.) and mackerel bait (Scomber scombrus Linnaeus, 1758) was evaluated against the industry standard 9/0 J-hooks with squid bait with respect to reducing sea turtle and shark interactions while maintaining swordfish (Xiphias gladius Linnaeus, 1758) and tuna (Thunnus spp.) catch rates. In total, 973,734 hooks were deployed during the study. Individually, circle hooks and mackerel bait significantly reduced both loggerhead [Caretta caretta (Linnaeus, 1758)] and leatherback [Dermochelys coriacea (Vandelli, 1761)] sea turtle bycatch. The combination of 18/0 circle hooks with mackerel bait was even more effective for loggerhead sea turtles and had a significant increase in swordfish catch by weight. The combination 18/0 circle hooks with squid bait resulted in a significant decrease in the swordfish catch and a significant increase in the catch rate of blue shark [Prionace glauca (Linnaeus, 1758)], bluefin tuna [Thunnus thynnus (Linnaeus, 1758)1, and albacore tuna [Thunnus alalunga (Bonnaterre, 1788)]. With all hook types, mackerel bait resulted in a significant decrease in blue shark, bigeye tuna [Thunnus obesus (Lowe, 1839)], and albacore tuna, but significantly increased the catch of porbeagle [Lamna nasus (Bonnaterre, 1788)] and shortfin mako (Isurus oxyrinchus Rafinesque, 1810). |
* Purpose |
To evaluate the Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery |
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Other Citation Details |
Provider: ingentaconnect Database: ingentaconnect Content: application/x-research-info-systems TY - ABST AU - Foster, Daniel G AU - Epperly, Sheryan P AU - Shah, Arvind K AU - Watson, John W TI - Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery JO - Bulletin of Marine Science PY - 2012-07-01T00:00:00/// VL - 88 IS - 3 SP - 529 EP - 545 N2 - Research was conducted in 2002 and 2003 by noaa's national Marine fisheries service, southeast fisheries science center, to investigate changes in hook design and bait type to reduce the bycatch of sea turtles on pelagic longlines in the western north atlantic ocean. The effectiveness of 18/0–20/0 circle hooks and 10/0 Japanese tuna hooks with squid (<i>Illex</i> spp.) and mackerel bait (<i>Scomber scombrus</i> linnaeus, 1758) was evaluated against the industry standard 9/0 J-hooks with squid bait with respect to reducing sea turtle and shark interactions while maintaining swordfish (<i>Xiphias gladius</i> linnaeus, 1758) and tuna (<i>Thunnus</i> spp.) catch rates. In total, 973,734 hooks were deployed during the study. Individually, circle hooks and mackerel bait significantly reduced both loggerhead [<i>Caretta caretta</i> (linnaeus, 1758)] and leatherback [<i>Dermochelys coriacea</i> (vandelli, 1761)] sea turtle bycatch. The combination of 18/0 circle hooks with mackerel bait was even more effective for loggerhead sea turtles and had a significant increase in swordfish catch by weight. The combination 18/0 circle hooks with squid bait resulted in a significant decrease in the swordfish catch and a significant increase in the catch rate of blue shark [<i>Prionace glauca</i> (linnaeus, 1758)] , bluefin tuna [<i>Thunnus thynnus</i> (linnaeus, 1758)], and albacore tuna [<i>Thunnus alalunga</i> (bonnaterre, 1788)]. With all hook types, mackerel bait resulted in a significant decrease in blue shark, bigeye tuna [<i>Thunnus obesus</i> (lowe, 1839)], and albacore tuna, but significantly increased the catch of porbeagle [<i>Lamna nasus</i> (bonnaterre, 1788)] and shortfin mako (<i>Isurus oxyrinchus</i> rafinesque, 1810). UR - http://www.ingentaconnect.com/content/umrsmas/bullmar/2012/00000088/00000003/art00010 M3 - doi:10.5343/bms.2011.1081 UR - http://dx.doi.org/10.5343/bms.2011.1081 ER - |
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None | bycatch |
None | catch rete |
None | protective species |
None | swordfish |
None | turtles |
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None | 2002-2003 |
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None | grand banks |
None | ned statistical area |
None | north atlantic |
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None | bait type |
None | hook type |
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* » Date Effective From | 2012-07-01 |
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Person | Foster, Daniel G |
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3209 Frederic Street Pascagoula, MS |
Email Address | daniel.g.foster@noaa.gov |
Phone | 228-762-4591 X 262 |
Fax | 228-769-8699 |
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Business Hours | 8:00 AM - 4:30 PM CST/CDT |
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* » Start | 2002 |
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2002 AND 2003 |
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* » Start | 2002 |
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URL | http://dx.doi.org/10.5343/bms.2011.1083 |
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Catalog Details
Catalog Item ID | 22667 |
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Metadata Record Created By | Lee M Weinberger |
Metadata Record Created | 2014-11-24 14:27+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:10+0000 |
Metadata Record Published | 2021-05-06 |
Owner Org | SEFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2021-05-06 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2022-05-06 |
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