VIMS Archives - Saving Seafood

‘Astounding’ amount of fishing gear lost in ocean each year

October 13, 2022 — It’s known as “ghost gear.” Abandoned traps, aimlessly drifting nets, and other lost fishing equipment can haunt the ocean for years, ensnarling and killing whales, turtles, and other marine creatures. The magnitude of the problem has been hard to quantify, but a new study provides the first solid global estimate of the amount of equipment lost each year: enough nets to cover Scotland, for example, and fishing line that could wrap around the equator 400 times.

These losses have been “a cryptic issue that’s been out of sight, out of mind,” says marine scientist Kirk Havens of the Virginia Institute of Marine Science (VIMS), who was not involved in the study. Lost traps and nets are “going to capture and kill things,” he adds. “That’s what they’re made for.”

The comprehensive new findings, researchers say, could help both conservation and fishing organizations track their progress toward protecting the seas from lost gear.

Kelsey Richardson, a marine and social scientist, first grasped the enormity of lost fishing gear while working in the Pacific Islands region for an intergovernmental organization. The regulators in charge of fishing there required vessels to host observers, who recorded losses of fishing gear. The data and findings were unique—and concerning because they showed how frequently boats at sea lost hooks, fishing lines, ropes, and nets.

Read the full article at Science.org

SCEMFIS: New Survey Will Help Fill Gaps in Menhaden Count in New England, Mid-Atlantic

January 14, 2022 — The Science Center for Marine Fisheries (SCEMFIS) highlighted a new project that will look to count a population of menhaden that could help inform not only a local New Jersey fishery but other fisheries in New England and the Mid-Atlantic region.

That area is home to a growing winter bait fishery but because there hasn’t been much work to survey the population that far north, there is not a strong enough count of how many fish are in that area.

The survey, which will launch from Cape May, New Jersey, will use sonar equipment to estimate the number of menhaden schooling in the area, and will collect additional information to estimate age, size, and weight, data that will be important for managing the fishery, per SCEMFIS.

Read the full story at Seafood News

New Acoustic Survey Will Investigate Previously Uncounted Menhaden

January 12, 2022 — The following was released by the Science Center for Marine Fisheries:

Despite being one of the largest and most high-profile fisheries on the East Coast, there are still gaps in our understanding of Atlantic menhaden. This is especially true in their northern range, in New England and the Mid-Atlantic. But this winter, a new project will look specifically to count menhaden in these areas, shedding new light on an important but underexamined portion of this species.

A team from the University of Maryland Center for Environmental Science’s (UMCES) Chesapeake Biological Laboratory and the Virginia Institute of Marine Science, in collaboration with NOAA Fisheries, is about to launch a winter population survey of menhaden, specifically of menhaden spending the season off the coast of New Jersey. The area is home to a growing winter bait fishery, but because there have been few attempts to survey menhaden this far north, there is currently not a good count of how many menhaden are in the area, as well a lack of good data on measurements like age and weight compositions.

“Right now, having a full picture of menhaden is limited by the lack of available information on the northern part of the stock,” said Dr. Genny Nesslage, a professor at UMCES and one of the lead researchers on the project. “Surveying this part of the population will hopefully give regulators the data they need to make informed decisions on how to manage menhaden coastwide.”

Atlantic menhaden are a coastwide species, with a range spanning from Maine to Florida. But most of our knowledge of the stock comes from data collected from purse seine fisheries in the Mid-Atlantic and around the Chesapeake Bay. Because older, larger menhaden are more likely to be found in northern waters, an entire segment of the menhaden population is not fully counted by current data collection methods.

As it is increasingly clear that there are significant numbers in this northern portion of the menhaden stock, surveys like these will be important in providing a fuller picture of the population, benefitting both the regional bait fishery and other, existing menhaden fisheries.

“Getting a better count of menhaden in the north is critical in improving our understanding of the fishery coastwide, and validating the population estimates that come from our current assessment models,” said Dr. Nesslage. “The more diverse sources of data we have on menhaden, the more confident we can be in our decisions on how to manage it.”

The survey was funded by the NOAA Fisheries Saltonstall-Kennedy Competitive Grants Program and its design was funded by a grant from the Science Center for Marine Fisheries (SCEMFIS), which connects marine scientists with members of the fishing industry to fund needed research for finfish and shellfish.

Researchers map best conditions for forage fishes in the Chesapeake

October 28, 2021 — Big fish eat smaller fish, but only if there are smaller fish to eat. A new study led by researchers at William & Mary’s Virginia Institute of Marine Science maps the conditions most suitable for key species of forage fishes in the Chesapeake Bay, offering guidance for any future efforts to protect or restore the habitat required to yield sufficient prey for predatory fishes such as striped bass.

Lead author on the study, which appears in the October issue of Frontiers in Marine Science, is Dr. Mary Fabrizio, a professor and chair of Fisheries Science at VIMS. Co-authors are fellow VIMS researcher Dr. Troy Tuckey, along with Drs. Aaron Bever and Michael MacWilliams of Anchor QEA, LLC. Bever is a VIMS alum.

“Small fishes such as bay anchovy are important components of the diets of predatory fishes in Chesapeake Bay,” says Fabrizio, “but factors that affect local abundances of these forage fish have been largely unexplored.”

To throw light on these factors, the research team set out to quantify and map suitable habitats for four common species of forage fishes in Bay waters, and to assess the relationship between habitat extent and fish abundance. In addition to bay anchovy, the forage species studied were juvenile spot, juvenile spotted hake, and juvenile weakfish.

The team based their study on data generated by counting the number of forage fishes caught in a trawl net during fishery surveys conducted by VIMS and the Maryland Department of Natural Resources between 2000 and 2016. These surveys sample at more than 100 sites throughout the Bay each month. They coupled these catch data with output from computer models simulating the environmental conditions at each sampling site. These conditions include water depth and temperature, salinity, stratification, dissolved-oxygen levels, and current speeds. The researchers also noted whether the bay floor beneath each net tow was sandy or muddy, and the distance to the nearest shoreline.

Read the full story at Phys.org

Virginia’s striped bass forecast looks stable as juvenile numbers hold steady

October 20, 2021 — Juvenile striped bass numbers are holding steady in Virginia’s Chesapeake Bay tributaries, the latest annual survey by the Virginia Institute of Marine Science found.

But a parallel survey in Maryland waters showed below-average numbers.

The surveys look at striped bass that hatched in the spring and that will be large enough to catch, legally, in three to four years.

Preliminary results of the Virginia survey showed an average of 6.3 fish for each haul of a seine net in the James, York and Rappahannock rivers. These young striped bass usually measure between 1.5 and 4 inches. That’s the 9th consecutive year of average or above average results, VIMS said.

Read the full story and listen to the audio at the Daily Press

Close Quarters: Ocean zoning pushes fisheries to the brink

September 23, 2021 — The following is an excerpt from an article published in National Fisherman by Dr. Roger Mann, professor of Marine Science at the College of William and Mary’s Virginia Institute of Marine Science. It is based on an article published by the Journal of Shellfish Research. That paper, “An Ecosystem is Not a Monument, and Other Challenges to Fishing in the 21st Century,” is based on a talk given by Dr. Mann at the annual meeting of the National Shellfisheries Association.

Managing fisheries is no longer simply about [the Magnuson Stevens Act’s] directives to “conserve and manage” a sustainable resource to serve the “social and economic needs of the States.” It is about managing fisheries in a changing landscape of competition for ocean resources, where the environment is changing faster than in living history, and species footprints are on the move.

Part of this changing landscape is the creation of large, no-take MPAs, like the Northeast Canyons and Seamounts Monument off the coast of Cape Cod. Designated by President Obama with the sweep of a pen using the Antiquities Act of 1906, the 4,913 square miles of the monument are now managed by multiple federal agencies under a bewildering patchwork of legislation, including Magnuson, the Endangered Species Act, the Marine Mammal Protection Act, the National Wildlife Refuge System Administration Act, the Refuge Recreation Act, Public Law 98-532, and Executive Order 6166. Then there is the National Marine Sanctuaries Act, through which the government can designate and protect marine areas of national significance.

This plethora of confusing legislation lacks uniform definitions. It is not clear on how — or even if — MPA designations are required to be revisited, even when species move. In addition, it does not state who has precedent over whom in the management hierarchy.

Even as questions remain over existing MPAs, activists are pushing for more with a “30×30” campaign to protect 30 percent of our nation’s land, inland waters and oceans as conservation areas by 2030. But what is “protected” in this context? Is a region protected only by excluding fishermen through a no-take MPA? Or does the Magnuson Act directive to “conserve and manage the fishery resources” and “exercise sound judgment in [their] stewardship” rise to the level of protection? If so, then is not the entire exclusive economic zone already protected?

MPAs are far from the only competition fishermen are facing in the ocean. Environmental advocacy, communications corridors, mining, national defense, and shipping all threaten fishermen’s access to ocean resources. Perhaps the biggest incursion of all is offshore wind development: the U.S. East Coast continental shelf already has 1.7 million acres of federal bottom under lease for offshore wind, with the Biden administration seemingly poised to expand such efforts along the Atlantic, Pacific and Gulf coasts. Offshore wind projects have a projected lifespan of 50 years, with turbine spacing restricting access for both commercial fishing vessels towing mobile gear and federal survey vessels. Stock assessment surveys will be compromised, resulting in reduced quotas for fishermen.

With so many competitors muscling their way into the ocean, who will be the winners and losers? Over what time frames will winners emerge? Where does preservation of the fishing industry sit in the pecking order? At the bottom?

The “space” for fisheries is shrinking. Commercial fishing won’t be the largest economic player as development of our oceans continues, but it is historically an important part of the economic and social structure of coastal communities. Fisheries are based on moving species distributions that do not function well within fixed boundaries, like those being zoned for MPAs and offshore wind.

Read the full article at National Fisherman

Study finds existing forage fish management is working

July 9, 2021 — Efforts to ratchet down fishing effort on species like herring and menhaden in the name of “extra precautionary management” in most cases are unlikely to bring additional benefits for stocks of predator species that eat them, according to a new study.

“Our results indicate that predator productivity was rarely influenced by the abundance of their forage fish prey,” wrote authors Christopher Free of the University of California-Santa Barbara, Olaf Jensen of the University of Wisconsin-Madison, Ray Hilborn of the University of Washington. “Only 6 predator populations (13 percent of the total) were positively influenced by increasing prey abundance and the model exhibited high power to detect prey influences when they existed,” according to their paper titled “Evaluating impacts of forage fish abundance on marine predators,” originally published in the journal Conservation Biology.

“These results suggest that additional limitation of forage fish harvest to levels well below sustainable yields would rarely result in detectable increases in marine predator populations.”

The findings were released July 6 through the Science Center for Marine Fisheries, a cooperative effort to improve sustainability of fisheries and reduce uncertainty in biomass estimates with work by university partners led with the University of Southern Mississippi Virginia Institute of Marine Science, College of William and Mary, as academic sites.

“Our work suggests that the sustainable limits that we already employ are sufficient for maintaining forage fish abundance above the thresholds that are necessary for their predators,” Free of UC Santa Barbara in a statement describing the findings. “Predators are highly mobile, they have high diet flexibility, and they can go and look for forage fish in places where they’re doing well, switch species for species that are doing well, and have often evolved to breed in places where there’s high and stable forage fish abundance.”

Read the full story at National Fisherman

Dr. Derek Aday chosen to lead VIMS

July 8, 2021 — The following was released by the Virginia Institute of Marine Science:

William & Mary has named nationally renowned ecologist Dr. Derek Aday as its next dean of the School of Marine Science and director of the Virginia Institute of Marine Science.

Aday, who will begin in this role at VIMS September 1, is head of the Department of Applied Ecology at North Carolina State University, university director of the Southeast Climate Adaptation Science Center, a fellow of the American Fisheries Society, and editor-in-chief of the society’s flagship journal. His selection follows a national search to succeed Dr. John Wells, who is retiring after 17 years at the VIMS helm.

“William & Mary welcomes warmly Dr. Aday to the university community,” says President Katherine A. Rowe. “Following the exceptional leadership of Dr. Wells, VIMS and the School of Marine Science are positioned to expand the university’s reach globally in the coming decades. And for Virginia, VIMS is vital to ensuring the continued prosperity of the Commonwealth’s ecology, economy, and coastal communities. Derek Aday’s talents and experiences perfectly match these challenges and opportunities.”

For his part, Aday says he embraces leading VIMS into the future and the continued interdisciplinary work required to solve complex problems facing the waters of the Commonwealth, the nation, and the world.

“VIMS and William & Mary have incredible histories and traditions and I’m very much looking forward to becoming a part of the future of both organizations,” Aday says. “I’ve followed the great science and scientists at VIMS from afar for many years, and I’m humbled by the opportunity to join a community of talented scholars and educators that is making a real difference in the world.”

Provost Peggy Agouris says he’s been equally followed by VIMS scholars and students. Aday has written numerous articles in peer-reviewed publications on topics ranging from the ecology of fresh- and saltwater fishes to the impacts of mercury pollution on aquatic ecosystems.

“Dr. Aday is a remarkable scientist in marine science and ecology,” says Agouris, “and we are fortunate to have him lead VIMS and our School of Marine Science. He impresses on the academic and the leadership fronts, both of which are necessary to lead one of the most important and impactful marine science schools in the world. Under his leadership, I am confident that VIMS’s advisory, educational, and research arms will flourish.”

Aday’s 16-year career in the College of Agriculture and Life Sciences at NCSU has provided leadership experience in all three facets of VIMS’ mission of research, education, and advisory service. He said he looks forward “to the opportunity to lead a cutting-edge marine research institute with a strong tradition of student education and a vibrant connection to an outstanding university.” He also relishes the challenge of guiding VIMS in its role as a technical advisor to the Commonwealth of Virginia for coastal and marine issues, across what he called “an impressive scale and breadth of disciplines.”

Dr. Carl Friedrichs, Glucksman professor of Marine Science at VIMS and chair of the Dean & Director Search Committee, notes that Aday articulated an “inspiring vision for an innovative future for VIMS.”

“The search committee was struck by Derek’s proven leadership across a broad range of relevant roles,” Friedrichs says. “He cited ideas that built on, but also went beyond, our current strengths to enhance more ambitious, interdisciplinary research, advisory service, and educational initiatives on issues such as climate change and coastal resilience.”

An interdisciplinary worldview has been central to Aday’s success, both in research and administration. He currently chairs an academic department he described as “interdisciplinary at its core,” with researchers exploring many of the same topics studied at VIMS, including aquatic ecology, biodiversity, conservation biology, fishery science and aquaculture, applied toxicology, and global change.

Under his leadership, the department earned approximately $9 million in annual grant funding, created a unique outreach and engagement program and doubled the number of women and historically under-represented, tenure-track faculty members. He also played a leading role in strategic plans recently developed by both his department and college, an experience that will serve him well as VIMS initiated its latest strategic planning process just last year.

Aday also brings experience in managing the type of multi-disciplinary and multi-institutional partnerships that have long animated and strengthened the VIMS mission. As university director of the Southeast Climate Adaptation Science Center, he led a consortium that included five academic institutions of higher education; federal collaborators from the U.S. Geological Survey; state climatologists and tribal partners from four nations. Aday’s leadership portfolio at VIMS will likewise include a wealth of institutional, state, and federal partners.

Read the full release here

Science Center for Marine Fisheries Recognizes Its Women Scientists in Celebration of Women’s History Month

March 31, 2021 — The following was released by the Science Center for Marine Fisheries:

As Women’s History Month comes to a close, the Science Center for Marine Fisheries (SCEMFIS) is celebrating the contributions of the women students and staffers who are a driving force behind the Center’s current success, and who are essential to our important fisheries science research.

SCEMFIS operates two main research centers, the Gulf Coast Research Lab at the University of Southern Mississippi and the Virginia Institute of Marine Science at the College of William and Mary. This year, we have an amazing team of PhD and Master’s degree students working at both sites, contributing to our work on finish and shellfish.

Here are the stories of the students and scientists that are part of the SCEMFIS team, who will make up the next generation of leaders in marine science.

Kathleen Hemeon is a 3rd year PhD candidate at the Gulf Coast Research Lab at the University of Southern Mississippi. In her second year as a PhD student, she participated in a National Science Foundation non-academic internship, which funded a six-month collaborative research study at the Population Biology Branch of the NMFS Northeast Fisheries Science Center in Woods Hole, MA. As an intern, she worked to develop age-error estimations and protocols that arise when aging the commercially harvested ocean quahog (Arctica islandica), the longest-lived bivalve on Earth. These data will help researchers identify age-reader bias and precision to report with age estimations, in addition to standardizing aging procedures for an animal that is notoriously difficult to age.

Kathleen will continue her work on ocean quahog with her dissertation, which will better explain the population dynamics of two, Mid-Atlantic quahog populations. This dissertation follows Kathleen’s previous work with green sturgeon, inland fisheries, and natural resource management, in addition to an earned B.S. from Western Washington University and M.S. from James Madison University.

Jill Sower is a second year Master’s student at the Gulf Coast Research Lab. Her work at GCRL focuses on examining population dynamics for ocean quahogs off the coast of New Jersey in comparison to different quahog populations from along the coast of New England.

Jill received a B.S. in Wildlife Conservation and a B.A. in Spanish from Virginia Tech in Blacksburg, VA. She hopes to graduate in Spring 2022, and after finishing her degree, she would like to continue working in a research position at a coastal university along the East Coast.

Alyssa LeClaire is a Master’s student at the Gulf Coast Research Laboratory. Working in collaboration with Virginia Institute of Marine Science, her work includes collecting samples from archived ocean quahog shells found offshore of the Delmarva Peninsula. Carbon dates will be used to determine the time scale of the ocean quahog’s range shift across the continental shelf in Mid-Atlantic Bight, coinciding with fluctuation of the Cold Pool and historical climate events. She has sampled shells that are over 4000 years old.

She is applying for an NSF nonacademic internship to work with NOAA’s Northeast Fisheries Science Center (NEFSC) and Geophysical Fluid Dynamics Laboratory (GFDL). This five-month internship would be to determine if the Cold Pool has significantly changed, in terms of size and location, and if this change is impacting the available habitat of ocean quahog. Alyssa received her BS in Marine Science at Coastal Carolina University in South Carolina.

Laura Solinger is a PhD student in the Gulf Coast Research Lab. Her work focuses on developing a risk-based approach to assess the effectiveness of different management strategies on fisheries resources, including summer flounder and Atlantic surfclam. Laura was awarded an NSF non-academic internship to collaborate with the stock assessment lead for Atlantic surfclam, Dr. Daniel Hennen, at the Northeast Fisheries Science Center, and she has also collaborated on projects for management of gulf oysters, abalone disease transmission, and forecasts of clam fisheries given projected offshore windmill construction.

Laura received her BS in Biology with a focus on Marine Science from the University of South Florida, and is currently finishing her MS in Fisheries Biology with Humboldt State University. After her PhD, Laura hopes to work with private and public fisheries organizations to develop stock assessment models, assess their effectiveness and continue advancements to incorporate new data sources and environmental variables into models.

Alexis Hollander is a Master’s Student at the Virginia Institute of Marine Science in Dr. Roger Mann’s Molluscan Ecology Lab. For her Master’s research, Alexis is investigating the impacts of climate change on the growth and distribution of Atlantic surfclams (Spisula solidissima). The moving footprint of the range of exploited surfclams in these regions over the past four decades is now well documented in both Northeast Fisheries Science Center (NEFSC) stock assessment surveys and the gradual northeasterly movement of harvest activity. This project is developing a 33-year retrospective, spatially explicit time series of growth rates in surfclams collected over the surveyed range to both document the moving footprint in terms of population productivity and provide an explicit forward projection of future productivity.

Alexis has a career goal of serving as an educator and mentor to college students.

Alexandria Marquardt is an ecologist and PhD student in the Department of Fisheries Science at Virginia Institute of Marine Science studying Eastern oyster (Crassostrea virginica) biology and population dynamics in the Chesapeake Bay. Her work focuses primarily on marine invertebrates and addresses applied questions that directly inform management and restoration of harvested species. Alex’s PhD research investigates post-settlement growth and mortality in oysters in the Chesapeake Bay and compares existing and fossil oyster reefs. Alex is collaborating with SCEMFIS this spring, assisting with ocean quahog and surf clam research, while searching for fossilized oysters.

Her career goals are to work on research and monitoring programs that engage local communities and stakeholders to share knowledge, build relationships, and facilitate participation in scientific research. Alex completed her BS in Fisheries and Wildlife Science at Oregon State University and MS in Biological Sciences working with Dr. Ben Ruttenberg at California Polytechnic State University, San Luis Obispo.

About SCEMFIS

SCEMFIS utilizes academic and fisheries resources to address urgent scientific problems limiting sustainable fisheries. SCEMFIS develops methods, analytical and survey tools, datasets, and analytical approaches to improve sustainability of fisheries and reduce uncertainty in biomass estimates. SCEMFIS university partners, University of Southern Mississippi (lead institution), and Virginia Institute of Marine Science, College of William and Mary, are the academic sites. Collaborating scientists who provide specific expertise in finfish, shellfish, and marine mammal research, come from a wide range of academic institutions including Old Dominion University, Rutgers University, University of Massachusetts-Dartmouth, University of Maryland, and University of Rhode Island.

The need for the diverse services that SCEMFIS can provide to industry continues to grow, which has prompted a steady increase in the number of fishing industry partners. These services include immediate access to science expertise for stock assessment issues, rapid response to research priorities, and representation on stock assessment working groups. Targeted research leads to improvements in data collection, survey design, analytical tools, assessment models, and other needs to reduce uncertainty in stock status and improve reference point goals.

New Study Finds Strong Currents Off Nantucket Prevent Development of Stable, Biologically Diverse Benthic Communities

February 22, 2021 — The following was released by the Science Center for Marine Fisheries (SCEMFIS):

Complex ocean environments, full of features such as cobble, rocks, and boulders, are usually home to a diversity of marine life; as a result, fisheries managers have often sought to preserve these areas from outside interference. But one such area off the coast of Nantucket may be a significant exception to this rule, according to a new study from the Science Center for Marine Fisheries (SCEMFIS).

The study, from Eric Powell, Jeremy Timbs, and Kelsey Kuykendall of the University of Southern Mississippi and Roger Mann and M. Chase Long of the Virginia Institute of Marine Science, analyzes survey data from the Nantucket Shoals area of the Great South Channel in the Atlantic, an area of considerable substrate complexity and home to the Great South Channel Habitat Management Area (HMA). But the study found that, due to the area’s strong currents and seafloor activity, much of the faunal diversity expected from substate complexity has failed to develop.

Specifically, the study found few examples of the kind of charismatic marine life—such as tunicates, sponges and anemones—that usually attach themselves to prominent features like boulders and rocks in habitats where they occur. The study attributes this to the high-energy currents that frequently run through the area, as well as the sand on the seafloor regularly scouring the rocks as a result of the currents. The absence of mussels attached to hard bottom features, and the presence of barnacle scars where barnacles have been eroded off the rocks, show clear evidence of the rigor of the benthic environment that minimizes the use of these substrates by attached bottom creatures.

According to the study, the tidal activity and strong currents “minimize the importance of cobbles, rocks, boulders, and shells in community structure in some subtidal high-energy regimes, defying expectations from their contribution to substrate complexity.”

“You’d expect the type of environment you see in Nantucket Shoals to support a significant amount of life on its rocks and bottom features, but that’s just not the case here,” said Dr. Eric Powell, one of the authors of the study. “These findings show that we need to consider the whole range of factors when determining which habitats are most likely to support biodiversity.

”The findings are significant for future management of the Great SouthChannel area. Much of the region has been part of a HMA since 2018, which prohibits bottom-tending fishing gear. It is also home to important fishing grounds for surfclams, and is one of the most resilient areas for surfclam habitat. Surfclam fishermen have lost access to these grounds since the HMA went into full effect.

Most notably, the Nantucket Shoals area within the HMA was critical for smaller clam vessels fishing out of Massachusetts; several surfclam companies caught up to 90 percent of their harvest from the area. Since it was first established, members of the surfclam industry have argued that this habitat area does not contain enough complex habitat to justify the number of restrictions in place, especially considering the cost to the industry. The study indicates that the area may not be a good candidate for habitat protection.

“It’s important that conservation efforts target areas that are most likely to benefit them, especially if these efforts would interfere with important fishing grounds,” said Monte Rome a member of the SCEMFIS IAB. “This study helps us better identify areas that do not particularly benefit conservation efforts.”

Read the full release here