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Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery

Document (DOC)  |  Southeast Fisheries Science Center (SEFSC)
GUID: gov.noaa.nmfs.inport:22667  |  Updated: June 14, 2024  |  Published / External 
Summary
Item Identification
Keywords
Document Info
Support Roles
Extents
URLs
Catalog Details

Summary

DOI: 10.5343/bms.2011.1083

Description

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).

Document Information

Document Type
Journal article

Document Format
Acrobat Portable Document Format

Publication Date
2002-07-01

Controlled Theme Keywords

Dermochelys, Thunnus, Xiphias gladius

Contact Information

Point of Contact
Larry Beerkircher
lawrence.r.beerkircher@noaa.gov
305-361-4290

Extents

Time Frame 1
2002 - 2003-12-31

2002 AND 2003

Time Frame 2
2002 - 2003-12-31

2002 AND 2003

Item Identification

Title: Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery
Short Name: Evaluation of Hook and Bait Type on the Catch Rates in the Western North Atlantic Ocean Pelagic Longline Fishery
Status: Completed
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
Other Citation Details:

Authors: Epperly, Sheryan P; Watson, John W; Foster, Daniel G; Shah, Arvind K

Source: Bulletin of Marine Science, Volume 88, Number 3, July 2012, pp. 513-527(15)

Publisher: University of Miami - Rosenstiel School of Marine, Atmospheric & Earth Science

DOI: https://doi.org/10.5343/bms.2011.1083
DOI (Digital Object Identifier): 10.5343/bms.2011.1083

Keywords

Theme Keywords

Thesaurus Keyword
World Register of Marine Species (WoRMS)
Dermochelys View WoRMS Aphia Record
World Register of Marine Species (WoRMS)
Thunnus View WoRMS Aphia Record
World Register of Marine Species (WoRMS)
Xiphias gladius View WoRMS Aphia Record
UNCONTROLLED
None bycatch
None catch rete
None protective species
None swordfish
None turtles

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2002-2003

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None grand banks
None ned statistical area
None north atlantic

Stratum Keywords

Thesaurus Keyword
UNCONTROLLED
None bait type
None hook type

Document Information

Document Type: Journal article
Format: Acrobat Portable Document Format
Status Code: Published

Support Roles

Author

CC ID: 1329676
Date Effective From: 2012
Date Effective To:
Contact (Person): Epperly, Sheryann
Email Address: epperlychester@gmail.com

Point of Contact

CC ID: 1329677
Date Effective From: 2024
Date Effective To:
Contact (Person): Beerkircher, Larry
Address: 75 Virginia Beach Drive
Miami, FL 33149
Email Address: lawrence.r.beerkircher@noaa.gov
Phone: 305-361-4290
View Historical Support Roles

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Time Frame 1

CC ID: 211508
Time Frame Type: Range
Start: 2002
End: 2003-12-31
Description:

2002 AND 2003

Extent Group 1 / Time Frame 2

CC ID: 211509
Time Frame Type: Range
Start: 2002
End: 2003-12-31
Description:

2002 AND 2003

URLs

URL 1

CC ID: 181392
URL: http://dx.doi.org/10.5343/bms.2011.1083
URL Type:
Online Resource
Description:

url of Journal

Catalog Details

Catalog Item ID: 22667
GUID: gov.noaa.nmfs.inport:22667
Metadata Record Created By: Lee M Weinberger
Metadata Record Created: 2014-11-24 14:27+0000
Metadata Record Last Modified By: Lee M Weinberger
Metadata Record Last Modified: 2024-06-14 13:53+0000
Metadata Record Published: 2024-06-14
Owner Org: SEFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-05-06
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-05-06