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About
ISSF
Our Story
About Us
Strategic Plan
Annual Report
Over a Decade of Discovery
Who We Are
Our Team
Board of Directors
Stakeholders
Scientific Advisory Committee
Environmental Stakeholder Committee
Participating Companies
Governance
Connect With Us
Sign up for the eNewsletter
Join ISSA
Donate
Contact Us
What We Publish
ISSF Documents
Scientific Reports
Best Practices Reports
Infographics
Blogs
Press Releases
eNewsletters
Videos
Web Features
Annual Report
Compliance Report
Social Media
Fishery Goals
& Resources
Our Priorities
Tuna Conservation
FAD Management
Marine Ecosystem Health
Bycatch Reduction
Capacity Management
Illegal Fishing Prevention
The Marine Stewardship Council Standard
MSC Fishery Certification
MSC-Certified Tuna Fisheries
Fishery Improvement Projects (FIPs)
About Tuna FIPs
List of Tuna FIPs
ISSF FIP Resources
FIP Resources Finder
FIPs FAQs
FIP Support Form
Skippers Workshops & Guidebooks
Skipper Program Overview
Workshop Topics
Workshop Options
Skippers Resources & Certification
Skippers & Observers Guidebooks
Our Best Practices Resources
Non-Entangling & Biodegradable FADs Guide
Best Practices Reports
Vessel & Company
Commitments
Conservation Measures
Our Role
Conservation Measures
Report a Compliance Issue
Participating Companies & Compliance
Participating Companies
Audit Process
Compliance Report
Participating Company Audit Reports
Data Check Companies
PROACTIVE VESSEL REGISTER (PVR)
PVR Overview
PVR List
Apply to the PVR
PVR Auditing Process
PVR FAQs
Terms of PVR Participation
Vessels in Other Sustainability Initiatives (VOSI)
VOSI Overview
VOSI List
Apply to the VOSI
VOSI Auditing Process
Other Vessel Lists
Public Vessel List Overview
Record of Large-Scale Purse Seine Vessels
Tuna Vessel IMOs and Other UVI Numbers
Research, Advocacy,
& Recommendations
OUR SCIENTIFIC PROGRAM
Research Overview
Peer-Reviewed Articles
Scientific Reports
Best Practices Reports
Tuna RFMO Papers
OUR ADVOCACY EFFORTS
Advocacy Overview
Participating Company Advocacy
Position Statements
RFMO Best Practices Snapshots
Tuna Stocks &
Management
Tuna Fishing
Tuna Species
Fishing Methods
ISSF Glossary
Our Tuna Stock Tools
Status of the Stocks Report
Interactive Stock Status and Catch Tool
Fisheries Management
Regional Fisheries Management Organizations (RFMOs)
RFMO Best Practices Snapshots
Our Media Library
Infographics
Photos
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Dr. Kristina Barz
Dr. Kristina Barz’s Post Archive
Blogs
Is Catching Immature Fish Truly Unsustainable?
June 7, 2023 | Dr. Christopher Zimmermann, Dr. Kristina Barz, Dr. Victor Restrepo
