David Shiffman Archives - Saving Seafood

‘Why sharks matter’: Q&A with author and shark biologist David Shiffman

June 2, 2022 — In the introduction to his new book, conservation biologist David Shiffman quotes Senegalese forestry engineer and conservationist Baba Dioum: “In the end we will conserve only what we love; we will love only what we understand; and we will understand only what we are taught,” Dioum says.

If anything is clear from Why Sharks Matter: A Deep Dive with the World’s Most Misunderstood Predator, it’s that Shiffman loves sharks (especially sandbar sharks, the subject of his master’s thesis). Just as clearly, he’s motivated to pass that enthusiastic affection along to his readers, drawing on the latest research to show how diverse, unique, misunderstood and just plain cool sharks are. As a writer, he delights in drilling into the vast variety of quirky behaviors and roles his study subjects play in the world’s oceans.

In doing so, Shiffman, currently a faculty research associate at Arizona State University in the U.S., is eager to spur readers into action aimed at protecting sharks. Still, the book is far from a generic laundry list of the troubles that we’ve brought upon these animals. He doesn’t sugarcoat the reality that many shark species face the threat of extinction as a result of the influence we humans wield over them and their marine environment. But Shiffman also holds a mirror up to how scientists, NGOs and shark aficionados approach conservation, and sometimes the reflection is less than flattering.

To support shark conservation, Shiffman writes, scientists need to ask the right questions, acknowledge their own blind spots and embrace the interdisciplinarity of modern-day conservation biology. Advocacy groups should follow the science that’s pointing the way toward addressing the greatest threat to sharks today, unsustainable fishing, rather than the topics that will attract the most donations. And members of the public can educate themselves about how they can best make a difference.

Read the full story at Mongabay

Everything You Know about Shark Conservation Is Wrong

May 25, 2022 — More people than ever before are aware of the shark conservation crisis and want to help, which is great news. However, many well-intentioned people often don’t know the true causes of—and solutions to—this crisis, resulting in what’s at best wasted effort, and at worst harming what they’re trying to support. This conservation dilemma has inspired the last decade of my research and public science engagement. It also inspired my new book, Why Sharks Matter: A Deep Dive with the World’s Most Misunderstood Predator, which synthesizes hundreds of research papers and reports to inform readers of the true threats to sharks and how we can begin to solve them. Only by following the evidence and seeking data-driven, sustainable solutions to overfishing can we save these fascinating and important creatures.

Many people believe that the largest or only threat to sharks is “shark finning”: the practice of catching sharks, harvesting their fins and discarding the carcasses at sea. But this isn’t the case and hasn’t been for decades. I’ve seen some online petitions calling for bans on shark finning within Florida waters get tens of thousands of signatures. Apparently neither the petition creators nor the many signatories are aware that we already banned shark finning across the United States almost 30 years ago. While supporters of these petitions say that they’re “raising awareness,” it does not help anyone or anything to share incorrect information about what the problems are or how to solve them. Such feel-good solutions do nothing while diverting energy, media coverage and funding away from solutions that might really help.

Sustainable fisheries for sharks absolutely exist and are a vital part of livelihoods and food security in developing nations in the Global South. Sharks have relatively few offspring relatively infrequently, which complicates fisheries management, but the principle is the same as for any sustainable fishery: perform scientific research to learn how many sharks are present, and allow fishermen to take some of them (but not so many that the population collapses). In fact, 90 percent of surveyed shark scientists and 78 percent of surveyed shark conservation advocates prefer sustainable shark fisheries to total bans on fishing for sharks and trade in shark products!

If you’ve never heard about sustainable shark fisheries before but have heard that the best way to save sharks is by banning the U.S. fin trade, it’s probably because, for reasons that aren’t very clear, such bans get much, much more media attention than science-based sustainable fisheries management. Many people are also influenced by provocative and misleading (to put it mildly) “documentaries” like 2021’s Seaspiracy.

Read the full story at Scientific American

New ASU study identifies research priorities for threatened sharks

February 1, 2022 — Sharks are some of the most threatened animals on Earth, and while many scientists want to dedicate their research to helping to save sharks, many report that they don’t know how to do this effectively.

A new paper in the journal Conservation Science and Practice, led by Arizona State University Faculty Research Associate David Shiffman, has identified 35 research priorities that scientists can use to shape their research on threatened shark species in the United States.

“Lists of research priorities help scientists, especially early career scientists, to choose a research project that can have a real impact,” Shiffman said. “Instead of having to figure out the complexities of policymaking and management on your own to learn what information managers need, lists of research priorities give scientists a one-stop shop to easily find everything. These scientists know that a question they’re hoping to answer with their work is a research priority because it’s already been identified as one.”

To generate this list of research priorities, the team from ASU’s New College of Interdisciplinary Arts and Sciences surveyed 86 experts from the fields of scientific research, environmental advocacy, natural resource and fisheries management, endangered species conservation and industry from throughout the United States. These experts were asked to reflect on what information we don’t currently know about threatened sharks that we need to know, and to propose research priorities as well as policy priorities.

Read the full story at Arizona State University News

Shark fin stories by major media ‘misleading’: Q&A with David Shiffman

July 14, 2020 — If there’s one thing most of the public knows about shark conservation, it’s that they’re under siege by global fleets of vessels that scoop them up, cut off their fins and deposit them back into the ocean to drown, a cruel practice known as shark finning.

But what if that practice, while real, isn’t the singular threat it’s made out to be?

“There are many threats facing sharks, but one, which is not the biggest threat, gets the most attention,” says David Shiffman, a postdoctoral researcher at Arizona State University who studies shark conservation.

An analysis of ten years’ worth of media reports, published in June by Shiffman et al in the open-access journal iScience, shows that two-thirds of all articles about threats to sharks focused on finning and the trade in shark fins — two separate issues that are conflated so frequently, write the authors, that “it was impossible to tease these two threats apart.”

A more pressing threat, overfishing, was mentioned in just four of ten articles. Recreational fishing for sharks, which the authors call an emerging threat, only made it into a tenth of the articles.

Critically endangered sharks, meanwhile, got a tiny fraction of the attention of the better-known species, like great white sharks. They showed up just 20 times in nearly 2,000 articles.

The result of the skewed media coverage, Shiffman says, is that “a concerned citizen learning about this important issue from newspapers would be badly misinformed,” which could lead them to support policies that, at best, won’t work.

Mongabay reached Shiffman over email for an interview that’s been edited lightly for length and clarity.

Read the full story at Mongabay

How media mistakes threaten global shark survival

June 19, 2020 — The following was released by Arizona State University:

Sharks are among the most threatened animals in the world, and more people than ever now want to help. But a deep analysis of news coverage of shark conservation issues over 10 years reveals an alarming pattern of inaccurate reporting. This misinformation results in broad misunderstandings of the true issues among both media consumers and policymakers.

David Shiffman, a marine conservation biologist at Arizona State University’s New College of Interdisciplinary Arts and Sciences, led a team that analyzed nearly 2,000 media articles dating back to 2008. The analysis reveals that worldwide media coverage of shark conservation topics is biased and inaccurate, omitting or misrepresenting key facts and not reporting on expert-backed solutions that have scientific data demonstrating their effectiveness.

“Sharks face many threats, and there are many available policy solutions to address those threats. However, you wouldn’t know that from reading newspaper coverage of this important and complex issue,” Shiffman said.

Examples of media misinformation include an overemphasis of threats, such as the shark fin trade verses the shark meat trade, which is a major and growing threat that’s less well understood. This skew in coverage has led in part to shark fin trade bans despite no evidence that these trade bans actually help sharks. The research notes that shark finning has been illegal in the United States since the 1990s, an important point that is often confused in media coverage of these issues.

Read the full release here

Is Climate Change Causing Sharks To Bite Humans? The D.C. Metro Thinks So

March 11, 2020 — Can taking Metro prevent shark bites? That’s the contention of an ad in stations and trains throughout the region. It’s part of a Metro public relations campaign to highlight the effects of climate change and how taking public transit can help. If you’ve seen the shark bite ads and wondered about them — you’re in good company.

“As someone who studies sharks and shark conservation, and in fact who has been involved in studies of climate change and sharks, this caught my attention,” says David Shiffman, a marine conservation biologist. The ad caught his attention, he says, “because it’s nonsense.”

The ad shows a black shark fin on an orange zig-zag background. It reads: “More CO2 could lead to increased shark bites. Keep the sharks at bay. Take Metro.”

Metro’s other climate change ads are on pretty solid scientific ground. There’s one about arctic ice melting and one about extreme weather — both well known consequences of climate change. Other ads focus on more obscure impacts — how climate change is affecting wine and beer producers. Still, says Shiffman, “The agricultural consequences are fairly well documented and not controversial.”

Read the full story at WAMU

To Save Endangered Sharks, You Sometimes Need to Kill a Few

January 9, 2020 — Sharks are some of the most fascinating, most misunderstood and most threatened animals in the world. Many scientists of my generation chose to study these amazing animals explicitly because they’re threatened, and because science can help; this was a major motivation for my choice to pursue a career as a marine conservation biologist, and a major influence in similar decisions by other shark researchers whom I surveyed. As we progress through our education, some of us are surprised to learn that effectively protecting entire species of sharks sometimes requires killing individual sharks—and many non-expert shark enthusiasts are outright shocked to learn this.

Every once in a while, this conflict between the goals of animal welfare and the goals of species-level conservation spill out into the world of social media, when non-expert shark enthusiasts discover that sometimes scientists work with fishermen to gather research samples from the sharks those fishermen have (legally) killed. This happened again recently, when just such a partnership was criticized on twitter by some non-experts.

The truth behind this ‘controversy’ is simple: many of the most important types of scientific data that we need to effectively monitor and conserve shark populations require lethal sampling. To quote a 2010 essay on this topic, “Although lethal sampling comes at a cost to a population, especially for threatened species, the conservation benefits from well‐designed studies provide essential data that cannot be collected currently in any other way.”

Nonlethal methods are being developed and should be encouraged (note: this paper about developing of nonlethal alternatives linked to above is co-written by my PhD supervisor and an Arizona State University colleague)., but they’re a long way from being ready for widespread deployment.

Read the full story at Scientific American

Dr. David Shiffman talks shark conservation at DC’s Profs and Pints

August 16, 2019 — At Washington DC’s regular Profs and Pints discussion series, shark expert Dr. David Shiffman shared shark facts, while discussing shark conservation and the threats currently faced by sharks. The talk brought a scientific perspective to some of the most debated topics in shark conservation, including managing sustainable shark fisheries and the efficacy of shark fin bans.

A major focus of the talk was on proposals in the U.S. that would ban the sale of legally caught shark fins, a subject of a recent paper co-authored by. Dr. Shiffman. Noting that the practice of shark finning—the removal of fins from sharks at sea—has long been illegal in the United States, and that the U.S. has some of the best managed shark fisheries in the world, Dr. Shiffman is critical of the idea that a ban would be useful for shark conservation.

“Banning a sustainable fishery here does not do anything to stop an unsustainable similar fishery somewhere else,” he said. “If we are not involved in the market we have no way to influence the market directly.”

Instead, the best way for the U.S. to combat unsustainable practices is to serve as a model for good shark management worldwide. A bill introduced in Congress, the Sustainable Shark Fisheries and Trade Act, would take this approach, requiring all shark products sold in the U.S. to come from sustainable fisheries, and providing support to improve global shark fishing practices.

Dr. Shiffman also noted during the talk that these unsustainable fishing practices globally are a far greater threat to sharks than shark finning. However, he added that these fisheries can be approved by adopting more sustainable management, and that several shark fisheries, many of which are in the U.S., are already well-managed.

“Sustainable shark fisheries can and do exist,” he said.

Profs and Pints is a regular speaker series that “brings college faculty members into bars, cafés, company offices, and other off-campus venues to share their knowledge.” It regularly hosts events in Washington, Chicago, Dallas, Nashville, and Philadelphia.

Sunscreen, Straws and Subtlety: The Dangers of Oversimplifying a Complex Environmental Problem

June 10, 2019 — Sometimes, scientists have to be the villain.

When people unite behind widespread “save the ocean” movements such as plastic-straw and sunscreen bans, it might seem like an undeniable win for the important goal of saving the ocean.

But, here I am, your friendly neighborhood marine conservation biologist, willing to take the role of wet blanket and say: Not only are these sweeping policies partially misguided, but they also could be a net negative for our beloved ocean ecosystem—and for people.

Hear me out—sometimes a problem is so large and overwhelming that the only way to wrap our brains around it is to focus on one bite-size chunk at a time. This can be an effective strategy for public engagement and education, especially if the goal is using a small, easily visualized part of the problem as a hook to get people to learn about and try to fix the rest of the problem.

However, when that small chunk of the problem is wrongly treated as the biggest threat or the only threat, well-intentioned activists can do more harm than good.

Overwhelming activist and media focus on a small part of the problem leads to confused and misinformed citizens, research funding getting reprioritized so it can’t be used on the bigger issues, and suboptimal policy outcomes.

Read the full story at Scuba Diving

Reintroduced Shark Trade Bill Promotes Successful U.S. Conservation Policies at Global Level

Bill incentivizes nations to follow U.S. example of successful management

January 31, 2019 — WASHINGTON — The following was released by the Sustainable Shark Alliance:

A bipartisan bill introduced in the U.S. House advances global shark conservation by ensuring that all shark and ray products imported into the United States meet the same high ethical and sustainability standards required of American fishermen. The bill has broad support from conservation groups, zoos, aquariums and the fishing industry. A companion bill is expected soon in the Senate; Sen. Marco Rubio (R-FL) introduced a similar bill in the last Congress.

The Sustainable Shark Fisheries and Trade Act of 2019 (SSFTA), H.R. 788, introduced by Rep. Daniel Webster (R-FL), and co-sponsored by Reps. Ted Lieu (D-CA), Bill Posey (R-FL), José Serrano (D-NY), among others, creates a transparent certification program for countries seeking to import shark products into the United States, modeled on similar laws that protect sea turtles and marine mammals across the globe. Similar legislation is expected to be introduced in the Senate.

Nations wishing to take advantage of the U.S. market for shark and ray products must prove they have an effective prohibition on the reprehensible and wasteful practice of shark finning, and have shark and ray management policies comparable to those under the Magnuson-Stevens Act.

Unlike legislation (H.R. 737) from Rep. Gregorio Kilili Camacho Sablan (D-NMI), which bans all trade of shark fins in the United States, the Sustainable Shark Fisheries and Trade Act creates incentives for improving shark conservation globally. The SSFTA punishes bad actors in other parts of the world while allowing responsible fishermen in the U.S. and elsewhere to realize the maximum value of their carefully managed and scientifically limited annual catch.

“Fishing is a long-standing profession and treasured American pastime, and particularly important in Florida,” said Rep. Webster. “Our responsibility is to balance the needs of the industry with conservation. This bill recognizes the sacrifices American fishermen have made to rebuild and sustain our shark populations and calls on others to meet these same high standards.”

“We thank the Congressmen for introducing the Sustainable Shark Fisheries and Trade Act,” said Tad Mask, regional director of the Southeastern Fisheries Association in Tallahassee, Florida. “The bill promotes shark conservation and the successful model of American shark management, without threatening law-abiding U.S. fishermen.”

“The idea of a fin ban comes as a first step in environmental groups ultimate goal of ending all shark fishing,” said Greg DiDomenico, director of the Garden State Seafood Association. “The same groups pushing Rep. Sablan’s bill are also calling for an end to shark fishing tournaments. Supporting sensible shark conservation measures, like Rep. Webster’s, should be a common goal of the commercial and recreational fishing communities.”

U.S. shark fisheries are among the best managed in the world. In a paper published last year, Dr. David Shiffman, a Liber Ero Postdoctoral Research Fellow at Simon Fraser University, and Dr. Robert Hueter, Director of the Center for Shark Research at Mote Marine Laboratory, wrote that the U.S. “has some of the most sustainable shark fisheries on Earth” and called the U.S. “a model of successful management.”

Shark finning, the cruel practice of removing a shark’s fins at sea and discarding the rest of the shark, has been banned in the United States with industry support since the 1990s. Currently, when a shark is landed, the fins are left naturally attached.

The Sustainable Shark Alliance has long argued for the importance of obtaining the maximum value by fully utilizing the limited catches U.S. fishermen are allowed. A U.S. ban on the sale of fins deprives coastal communities of much needed income, while mandating waste of a valuable and culturally important resource.

“The answer to the problem of shark finning is not ‘reverse shark finning,’ by destroying the shark fins that are legally harvested,” said the Alliance’s counsel, Shaun Gehan. “It is to stop shark overfishing and waste of much needed shark protein in all the world’s shark fisheries. The SSFTA moves us in that direction.”

Prior versions of the Sustainable Shark Fisheries and Trade Act have been supported by commercial fishing industry groups, including but not limited to the Garden State Seafood Association, Southeastern Fisheries Association, North Carolina Fisheries Association, Directed Sustainable Fisheries, and Louisiana Shrimp Association; environmental groups, such as the Wildlife Conservation Society; and zoo and aquarium facilities, such as Mote Marine Laboratory, Palm Beach Zoo, SeaWorld, Zoo Miami Foundation and the Florida Aquarium. The Florida Fish and Wildlife Conservation Commission has also written in support of approach.

About the Sustainable Shark Alliance
The Sustainable Shark Alliance (SSA) is a coalition of shark fishermen and seafood dealers that advocates for sustainable U.S. shark fisheries and supports well-managed and healthy shark populations. The SSA stands behind U.S. shark fisheries as global leaders in successful shark management and conservation.