Scientists Urge Sweeping International Protections for Atlantic Sharks

Scientists Urge Sweeping International Protections for Atlantic Sharks

A group of shark experts today recommended a ban on catching eight species of Atlantic, open ocean ("pelagic") sharks, and strictly limiting the catch of another two, to prevent possible population crashes. Currently, there are no international limits on shark catch.

The recommendations, released in a report entitled Management Recommendations Based on Integrated Risk Assessment of Data-Poor Pelagic Atlantic Sharks, are in response to research demonstrating that ten species of Atlantic sharks currently have a high risk of being seriously overfished.

"Our results show very clearly that there is a critical need to take management action to prevent shark population depletion and maintain ecosystem function," said lead author Dr. Colin Simpfendorfer of Australia's James Cook University.

There is little information about the numbers and species of sharks caught in international waters of the Atlantic Ocean. As a result, scientists often have trouble assessing the status of populations and estimating sustainable catch levels, and policymakers have accordingly declined to implement sustainable measures to adequately protect these important ocean predators.

To assess the overfishing risk for shark populations, experts employed a new technique, which takes into account the species’ biology, susceptibility to fishing gear, current population status and other available information.

The scientists recommended catch bans for different reasons. Two species have exceptionally low reproductive rates and a high risk of overfishing. For four other species, there are insufficient data to determine appropriate fishing limits that would ensure healthy populations. A recommendation to limit catch of other shark species was based on updated scientific assessments.    

The Lenfest Ocean Program brought together shark experts from Australia, Belgium, Croatia, South Africa and the United States to develop recommendations in part to help the International Commission for the Conservation of Atlantic Tunas (ICCAT) make better management decisions for Atlantic pelagic sharks. ICCAT is scheduled to hold its bi-annual meeting from November 17-24 in Morocco, where members of the organization, including the European Union, will consider the findings of the Lenfest report and additional scientific advice, along with proposals to act upon them.

"Scientists have confirmed that many Atlantic pelagic sharks are vulnerable to overfishing and urgently need protection," said Charlotte Hudson, an officer with the Lenfest Ocean Program. "We are hopeful that this cutting-edge analysis will inform and prompt the conservation action that is needed to avoid losing these essential ocean predators."   

Although ICCAT is responsible primarily for managing and conserving tunas, it is also the only management body capable of imposing Atlantic-wide restrictions on the catch of sharks taken in tuna fishing gear. Scientists, conservationists and policymakers widely acknowledge that this meeting of ICCAT provides the most immediate opportunity to protect shark species in the Atlantic Ocean.

Spotlight on Mental Health

Composite image of modern city network communication concept

Learn the Basics of Broadband from Our Limited Series

Sign up for our four-week email course on Broadband Basics

Quick View

How does broadband internet reach our homes, phones, and tablets? What kind of infrastructure connects us all together? What are the major barriers to broadband access for American communities?

Pills illustration
Pills illustration

What Is Antibiotic Resistance—and How Can We Fight It?

Sign up for our four-week email series The Race Against Resistance.

Quick View

Antibiotic-resistant bacteria, also known as “superbugs,” are a major threat to modern medicine. But how does resistance work, and what can we do to slow the spread? Read personal stories, expert accounts, and more for the answers to those questions in our four-week email series: Slowing Superbugs.

Explore Pew’s new and improved
Fiscal 50 interactive

Your state's stats are more accessible than ever with our new and improved Fiscal 50 interactive:

  • Maps, trends, and customizable charts
  • 50-state rankings
  • Analysis of what it all means
  • Shareable graphics and downloadable data
  • Proven fiscal policy strategies

Explore

Welcome to the new Fiscal 50

Key changes include:

  • State pages that help you keep track of trends in your home state and provide national and regional context.
  • Interactive indicator pages with highly customizable and shareable data visualizations.
  • A Budget Threads feature that offers Pew’s read on the latest state fiscal news.

Learn more about the new and improved Fiscal 50.