ISSF convenes a diverse group of stakeholders — NGOs, vessel owners, retailers, tuna processors and more — to make sustainability recommendations to tuna Regional Fisheries Management Organizations (RFMOs).

Here are recent advocacy letters that have resulted from that collaborative work.

Joint Advocacy Letters tagged with Purse Seine

Image Title Date Author(s) Language RFMO(s) Tag(s) Category Company Report Type Activity Year
Image Title Date Author(s) Language RFMO(s) Tag(s) Category Company Report Type Activity Year
Acoustic Discrimination Technology to Support Selective Fishing November 24, 2020 English N/A Acoustic Discrimination, Bycatch Mitigation, Ecosystem, FADs, Purse Seine, Tuna Infographics N/A Final November 24, 2020
Acoustic Discrimination Timeline: Research and Publications April 20, 2021 English N/A Acoustic Discrimination, Bycatch Mitigation, Ecosystem, FADs, Purse Seine, Tuna Infographics N/A Final April 20, 2021
Benefits for Tuna Fishers of Joining the ProActive Vessel Register (PVR) November 16, 2018 English N/A Longline, Pole and Line, ProActive Vessel Register, Purse Seine, Tuna Infographics N/A Final November 16, 2018
BioFADs: New Trials and Large-Scale Deployment April 20, 2021 English N/A Biodegradable FADs, FADs, ISSF, Pole and Line, Purse Seine, science Infographics N/A Final April 20, 2021
Bycatch Rates by Ocean and Set Type May 22, 2019 English N/A Bycatch, Bycatch Mitigation, Purse Seine, Tuna Infographics N/A Final May 22, 2019
FAD Use, FIPs, & the MSC Standard September 24, 2019 ISSF English N/A Best Practices, FADs, Fisheries Improvement Projects, MSC Certification, Purse Seine, Tuna Infographics N/A Final September 24, 2019
IMO Numbers & Transparency in the Fishing Industry January 26, 2021 ISSF English N/A IMO, Purse Seine, Tuna, UVI Infographics N/A Final January 26, 2021
Improving Silky Shark Survival February 6, 2017 English N/A Bycatch, Bycatch Mitigation, FADs, Purse Seine, Sharks Bycatch, Infographics N/A N/A February 6, 2017
ISSF 2010-01: Replacing Purse Seining with Pole-and-Line Fishing in the Western Pacific. Baitfish Requirements January 20, 2010 Robert Gillett English N/A Pole and Line, Purse Seine Scientific Reports, Technical Reports N/A Technical Report January 20, 2010
ISSF 2012-10: Report of the 2012 Stock Assessment Workshop. Understanding Purse Seine CPUE July 19, 2012 ISSF English N/A Purse Seine Meeting Reports, Scientific Reports, Technical Reports N/A Workshop Report July 19, 2012
ISSF 2013-06: Fishing Capacity and Efficient Fleet Configuration in the Eastern Pacific Ocean April 15, 2013 Dr. Dale Squires, Jeffrey Shrader English N/A Capacity Management, Purse Seine, Tuna Scientific Reports, Technical Reports N/A Technical Report April 15, 2013
ISSF 2013-07: Vessel Buybacks in Purse Seine Tuna Fisheries. The Role of Auction and Financing Structures June 11, 2013 Joshua Graff Zivin English N/A Capacity Management, Purse Seine Scientific Reports, Technical Reports N/A Technical Report June 11, 2013
ISSF 2014-08: Updated Guidance on Electronic Monitoring Systems for Tropical Tuna Purse Seine Fisheries* June 5, 2014 Dr. Victor Restrepo, Javier Ariz, Jon Ruiz, Ana Justel-Rubio, Pierre Chavance English N/A Electronic Monitoring & Reporting, IUU, Purse Seine Scientific Reports, Technical Reports N/A Technical Report June 5, 2014
ISSF 2014-12: Exploration of Market Viability for the Full Retention of Non-Tuna Species in Purse Seine Fisheries December 9, 2014 A. O. Lewis English N/A Bycatch, Purse Seine, Tuna Bycatch, Scientific Reports, Technical Reports N/A Technical Report December 9, 2014
ISSF 2015-12: Report of the 2015 ISSF Workshop on Non-Entangling FADs March 24, 2015 ISSF English N/A Biodegradable FADs, FADs, Non-Entangling FADs, Purse Seine Meeting Reports, Non-Entangling FADs, Scientific Reports, Technical Reports N/A Workshop Report March 24, 2015
ISSF 2016-08: Advances in the Use of Entanglement-Reducing Drifting Fish Aggregating Devices in Tuna Purse Seiners April 28, 2016 Dr. Jefferson Murua, David Itano, Martin Hall, Dr. Laurent Dagorn, Dr. Gala Moreno, Dr. Victor Restrepo English N/A Bycatch, Bycatch Mitigation, FADs, Purse Seine, science Scientific Reports, Technical Reports N/A Technical Report April 28, 2016
ISSF 2016-10: A Maximum Likelihood Approach for Calculating Fish Hold Volume for Tuna Purse Seine Vessels June 22, 2016 Dr. Victor Restrepo, Ana Justel-Rubio English N/A Capacity Management, Purse Seine, science, Tuna Scientific Reports, Technical Reports N/A Technical Report June 22, 2016
ISSF 2016-16: Implementation of Pilot Projects to Explore the Market Viability of Full-Retention of Non-Tuna Species in Purse Seine Fisheries November 15, 2016 A. O. Lewis English N/A Bycatch, Bycatch Mitigation, Purse Seine Bycatch, Scientific Reports N/A Technical Report November 15, 2016
ISSF 2016-17: Mitigation of Silky Shark Bycatch in Tropical Tuna Purse Seine Fisheries December 9, 2016 Dr. Victor Restrepo, Dr. Laurent Dagorn, Dr. Gala Moreno English N/A Bycatch Mitigation, Purse Seine, Sharks, Tuna Scientific Reports, Technical Reports N/A Technical Report December 9, 2016
ISSF 2017-01: Computing a Global Rate of Non-Target Species Catch (Bycatch) in Tropical Tuna Purse Seine Fisheries* February 7, 2017 Ana Justel-Rubio, Dr. Victor Restrepo English N/A Bycatch, Purse Seine, science, Tuna Bycatch, Scientific Reports, Technical Reports N/A Technical Report February 7, 2017
ISSF 2017-06: A Summary of Bycatch Issues and ISSF Mitigation Activities To Date in Purse-Seine Fisheries, with Emphasis on FADs* November 27, 2017 Dr. Victor Restrepo, Dr. Laurent Dagorn, David Itano, Ana Justel-Rubio, Dr. Gala Moreno English N/A Bycatch, Bycatch Mitigation, FADs, Justel-Rubio, Purse Seine, science Scientific Reports, Technical Reports N/A Technical Report November 27, 2017
ISSF 2017-07: Towards Global Non-Entangling Fish Aggregating Device (FAD) Use in Tropical Tuna Purse Seine Fisheries Through a Participatory Approach November 22, 2017 Dr. Jefferson Murua, Dr. Gala Moreno, Martin Hall, Dr. Laurent Dagorn, David Itano, Dr. Victor Restrepo English N/A Bycatch Mitigation, FADs, Ghost Fishing, Non-Entangling FADs, Purse Seine, Sharks, Tuna Scientific Reports, Technical Reports N/A Technical Report November 22, 2017
ISSF 2018-03: Efficiency of Electronic Monitoring on FAD-Related Activities by Supply Vessels in the Indian Ocean February 22, 2018 G. Legorburu, X. Lekube, I. Canive, J. G. Ferré, H. Delgado, Dr. Gala Moreno, Dr. Victor Restrepo English N/A Electronic Monitoring & Reporting, FADs, Purse Seine Scientific Reports, Technical Reports N/A Technical Report February 22, 2018
ISSF 2018-04: Minimum Standards for Electronic Monitoring in Tropical Tuna Purse Seine Fisheries February 28, 2018 Dr. Victor Restrepo, Ana Justel-Rubio, Holly Koehler, Jon Ruiz English N/A Electronic Monitoring & Reporting, Purse Seine, Tuna Scientific Reports, Technical Reports N/A Technical Report February 28, 2018
ISSF 2018-06: Characterizing Small and Medium Scale Tuna Purse Seine and Ring Net Vessels in Indonesia March 28, 2018 Dr. Jefferson Murua, David Itano, Anung Widodo English N/A Bycatch, FADs, Purse Seine, Tuna Scientific Reports, Technical Reports N/A Technical Report March 28, 2018
ISSF 2018-07: Design Workshop on the Use of Biodegradable Fish Aggregating Devices in Ghanaian Purse Seine and Pole and Line Tuna Fleets April 6, 2018 Dr. Gala Moreno, Dr. Jefferson Murua, Papa Kebe, Dr. Jerry Scott, Dr. Victor Restrepo English N/A Biodegradable FADs, FADs, Pole and Line, Purse Seine Scientific Reports, Technical Reports N/A Workshop Report April 6, 2018
ISSF 2018-20: Compendium of at-Sea Bycatch Mitigation Research Activities as of September 2018* October 2, 2018 Dr. Victor Restrepo, Dr. Laurent Dagorn, Dr. Gala Moreno, K. Schaefer, Fabien Forget, Igor Sancristobal, David Itano, Dr. Melanie Hutchinson English N/A Acoustic Discrimination, Bigeye Tuna, Biodegradable FADs, Bycatch, Bycatch Mitigation, Purse Seine, Rays, science, Sea Turtles, Sharks Scientific Reports, Technical Reports N/A Technical Report October 2, 2018
ISSF 2019-08: Report of the International Workshop on Mitigating Environmental Impacts of Tropical Tuna Purse Seine Fisheries April 24, 2019 Dr. Victor Restrepo, Dr. Laurent Dagorn, Dr. Gala Moreno, Dr. Jefferson Murua, Fabien Forget, Ana Justel-Rubio English N/A Bigeye Tuna, Bycatch, Bycatch Mitigation, Ecosystem, FADs, Purse Seine, Rays, science, Sharks, Tuna, Yellowfin Tuna Meeting Reports, Scientific Reports N/A Workshop Report April 24, 2019
ISSF 2019-11: Recommended Best Practices for FAD Management in Tropical Tuna Purse Seine Fisheries July 31, 2019 Dr. Victor Restrepo, Holly Koehler, Dr. Gala Moreno, Dr. Hilario Murua English N/A Best Practices, FADs, Purse Seine Best Practices Reports, Scientific Reports, Technical Reports N/A Technical Report July 31, 2019
ISSF 2019-13: Towards Biodegradable FADs: Evaluating the Lifetime of Biodegradable Ropes in Controlled Conditions December 17, 2019 Dr. Gala Moreno, M. Shiham Adam, Dr. Victor Restrepo English N/A Biodegradable FADs, Ecosystem, FADs, Purse Seine Scientific Reports, Technical Reports N/A Technical Report December 17, 2019
ISSF 2020-01: ISSF Skippers Workshops Round 9* January 9, 2020 Dr. Jefferson Murua, Dr. Gala Moreno, David Itano, Martin Hall, Dr. Laurent Dagorn, Dr. Victor Restrepo English N/A Bycatch, Bycatch Mitigation, FADs, Purse Seine, Skippers Workshops Scientific Reports, Technical Reports N/A Technical Report January 9, 2020
ISSF 2020-11: Recommended Best Practices for Tropical Tuna Purse Seine Fisheries in Transition to MSC Certification, with an Emphasis on FADs* March 16, 2020 Dr. Victor Restrepo, Ana Justel-Rubio, Juan Pedro Monteagudo, Dr. Gala Moreno, Dr. Hilario Murua English N/A Best Practices, FADs, Fisheries Improvement Projects, MSC Certification, Purse Seine, Tuna Best Practices Reports, Scientific Reports N/A Technical Report March 16, 2020
ISSF 2020-13: Compendium of ISSF Research Activities to Reduce FAD Structure Impacts on the Ecosystem April 30, 2020 Dr. Gala Moreno, Dr. Jefferson Murua, Ahmed Riyaz Jauharee, Iker Zudaire, Dr. Hilario Murua, Dr. Victor Restrepo English N/A Biodegradable FADs, Ecosystem, FADs, Purse Seine Scientific Reports, Technical Reports N/A Technical Report April 30, 2020
ISSF 2020-15: Information and Monitoring Best Practices for Tropical Tuna Purse Seine Fisheries Relative to the MSC Standard September 8, 2020 Dr. Hilario Murua, Ana Justel-Rubio, Dr. Gala Moreno, Dr. Victor Restrepo English N/A Best Practices, FADs, Fisheries Improvement Projects, MSC Certification, Purse Seine Best Practices Reports, Scientific Reports N/A Technical Report September 8, 2020
ISSF 2021-05: Survey of Human Observer Programs for Purse Seine Vessels and a Set of Best Practices* April 21, 2021 Holly Koehler English N/A Best Practices, CCSBT, IATTC, ICCAT, IOTC, Observer Coverage, Observer Programs, Purse Seine, RFMOs, WCPFC Best Practices Reports, Scientific Reports N/A Technical Report April 21, 2021
ISSF 2021-11: Questions and Answers About FADs and Bycatch* June 10, 2021 Dr. Hilario Murua, Dr. Laurent Dagorn, Dr. Gala Moreno, Ana Justel-Rubio, Dr. Victor Restrepo English N/A Biodegradable FADs, Bycatch, Bycatch Mitigation, Ecosystem, FADs, Purse Seine Bycatch, Scientific Reports, Technical Reports N/A Technical Report June 10, 2021
ISSF 2021-12: A Snapshot of the Large-Scale Tropical Tuna Purse Seine Fishing Fleets as of July 2021* September 8, 2021 Ana Justel-Rubio, Dr. Lorena Recio English N/A Capacity Management, Purse Seine, RFMOs, Tuna Scientific Reports, Technical Reports N/A Technical Report September 8, 2021
ISSF 2022-09: Minimum Standards for Electronic Monitoring Systems in Tropical Tuna Purse Seine and Longline Fisheries April 19, 2022 Dr. Hilario Murua, Jon Ruiz, Ana Justel-Rubio, Dr. Victor Restrepo English N/A Electronic Monitoring & Reporting, Longline, Purse Seine, Tuna Scientific Reports, Technical Reports N/A Technical Report April 19, 2022
ISSF ProActive Vessel Register (PVR): Audit Policy Document & Standard Operating Procedures for Purse Seine Vessels (January 2022) January 13, 2022 English N/A Compliance, ProActive Vessel Register, Purse Seine Audit Process N/A Final January 13, 2022
Minimum Standards for Vessel Electronic Monitoring Systems June 19, 2020 English N/A Best Practices, Electronic Monitoring & Reporting, Purse Seine, Tuna Infographics N/A Final June 19, 2020
Non-target Species Caught in Tuna Fisheries April 15, 2016 English N/A Bycatch, Bycatch Mitigation, Gillnet, Longline, Pole and Line, Purse Seine, science, Sea Turtles, Sharks, Trolling Infographics N/A N/A April 15, 2016
ProActive Vessel Register (PVR) Growth by Vessel Type, 2012-2021 January 18, 2022 English N/A Handline, Longline, Pole and Line, ProActive Vessel Register, Purse Seine, Supply Vessel Infographics N/A Final January 18, 2022
Protecting Sharks: Reducing Shark Bycatch in Purse Seine Fisheries September 27, 2016 English N/A Bycatch, Bycatch Mitigation, Purse Seine, Sharks Bycatch, Infographics N/A N/A September 27, 2016
Purse Seine FIPs Best Practices Checklist April 28, 2020 ISSF English N/A Best Practices, Fisheries Improvement Projects, Purse Seine Guides & Best Practices N/A Final April 28, 2020
Snapshot of the Large-Scale Purse-Seine Fleet (2021) September 15, 2021 English N/A Capacity Management, ProActive Vessel Register, Purse Seine Infographics N/A Final September 15, 2021
Towards Acoustic Discrimination of Tuna Species at FADS September 12, 2016 English N/A Bigeye Tuna, Bycatch, Conservation Measures, FADs, Purse Seine, Skipjack, Sticky, Tuna, Yellowfin Tuna Bycatch, Conservation Measures N/A N/A September 12, 2016
Tropical Purse Seine Fisheries Bycatch: Atlantic Ocean June 19, 2019 English N/A Bycatch, FADs, Purse Seine, Sharks, Tuna Infographics N/A Final June 19, 2019
Tropical Purse Seine Fisheries Bycatch: Eastern Pacific Ocean June 19, 2019 English N/A Bycatch, FADs, Purse Seine, Sharks, Tuna Infographics N/A Final June 19, 2019
Tropical Purse Seine Fisheries Bycatch: Indian Ocean June 19, 2019 English N/A Bycatch, FADs, Purse Seine, Rays, Sharks, Tuna Infographics N/A Final June 19, 2019
Tropical Purse Seine Fisheries Bycatch: Western and Central Pacific Ocean June 19, 2019 English N/A Bycatch, FADs, Purse Seine, Rays, Sharks, Tuna Infographics N/A Final June 19, 2019