Saving Seafood

Science Center for Marine Fisheries Continues Work with New National Science Foundation Grant

January 23, 2019 — The following was released by the Science Center for Marine Fisheries:

Following the completion of its initial 5-year National Science Foundation (NSF) grant, the Science Center for Marine Fisheries (SCeMFiS) has been awarded a new Phase 2 grant by the NSF to continue its work. SCeMFiS will use the new grant to further its track record of quality, collaborative research with its fishing industry and academic partners.

The grant is part of NSF’s Industry/University Cooperative Research Center (IUCRC) program, which was developed to initiate long-term partnerships among industry, academia, and government. SCeMFiS is the only Phase 2 IUCRC program dedicated exclusively to fisheries and marine science research.

“Our new Phase 2 grant will allow SCeMFiS researchers to continue our collaborative work with the fishing industry,” said Center Director Dr. Eric Powell, of the University of Southern Mississippi, one of the academic members of SCeMFiS. “The Phase 2 grant will enable SCeMFiS to continue to fund the groundbreaking research necessary to maintain healthy fish stocks and healthy fisheries at a time when reliance on the best available science is increasingly critical.”

As it moves into Phase 2, SCeMFiS will focus on reducing scientific uncertainty; the effects of climate change on fish stocks and fishing communities; resolving issues between fishing and offshore energy interests; and developing sound ecosystem-based fisheries management.

“Our priorities for Phase 2 reflect the biggest challenges in the future of the fishing industry,” said Center Site Director Dr. Roger Mann, of the Virginia Institute of Marine Science, another SCeMFiS academic institution. “To meet these challenges, the industry and fisheries managers will need the kind of innovative research that SCeMFiS has regularly produced over the last 5 years.”

In its first 5 years, SCeMFiS has done groundbreaking research on finfish and shellfish. Among other projects, the Center produced the first age-frequency distributions for ocean quahog, one of the longest-lived species in the ocean. SCeMFiS scientists conducted the first benthic survey on important ocean habitat east of Nantucket, and mapped the shifting range of surfclams, documenting how climate change is beginning to affect the species.

SCeMFiS has also designed a pelagic survey for Atlantic menhaden and provided recommendations to improve port sampling for the species, carried out the only scientific work to date on Atlantic chub mackerel, and carried out an economic analysis for longfin squid.

All of these projects were reviewed, approved, and funded by the industry members on our Industry Advisory Board, who rely on sound science for the health of their fisheries and businesses.

“Fisheries management is only as good as the science it’s based on,” said Greg DiDomenico, Executive Director of the Garden State Seafood Association and a member of SCeMFiS’ Industry Advisory Board. “That’s why it’s so important for the fishing industry to maintain its partnership with SCeMFiS. We need to promote the best available science.”

URI and VIMS Researchers Show Aquaculture Oysters Can Limit Spread of Dermo in Wild Oysters

December 19, 2018 — SEAFOOD NEWS — Recent research carried out at the University of Rhode Island and the Virginia Institute of Marine Science has found that growing farmed oysters can reduce disease loads in wild oysters.

This counter-intuitive finding is based on the fact that the primary killer of wild oysters is Dermo, a parasite that occurs naturally in the environment, and lives in the tissue of oysters.  The single celled parasite is harmless to humans, and has nothing to do with bacteria such as vibrio.

“The very act of aquaculture has positive effects on wild populations of oysters,” said Tal Ben-Horin, a postdoctoral fellow at the URI Department of Fisheries, Animal and Veterinary Sciences in the College of the Environment and Life Sciences. “The established way of thinking is that disease spreads from aquaculture, but in fact aquaculture may limit disease in nearby wild populations.”

Working with colleagues at the University of Maryland Baltimore County, Rutgers University, the U.S. Department of Agriculture, and the Virginia Institute of Marine Science, Ben-Horin integrated data from previous studies into mathematical models to examine the interactions between farmed oysters, wild oysters and the common oyster disease Dermo.

Basically, Dermo is spread through an oyster reef when infected oysters die, and their tissues decay.  But aquaculture, particularly caged or bagged oysters off the seabed, act as filters, and take in the Dermo parasite, but they are harvested and sold before the parasite has any lethal effects.

The net result is that near oyster farms, the incidence of wild Dermo goes down.

According to Ben-Horin, diseases are among the primary limiting factors in wild oyster populations. There are few wild populations of oysters in New England because of Dermo and other diseases, and in the Chesapeake Bay and Delaware Bay, wild oysters are managed with the understanding that most will die from disease.

“As long as aquaculture farmers harvest their product before the disease peaks, then they have a positive effect on wild populations,” Ben-Horin said. “But if they’re left in the water too long, the positive effect turns negative.”

The study’s findings have several implications for the management of wild and farmed oysters. Ben-Horin recommends establishing best management practices for the amount of time oysters remain on farms before harvest. He also suggests that aquaculture managers consider the type of gear – whether farmers hold oysters in cages and bags or directly on the seabed – when siting new oyster aquaculture operations near wild oyster populations.

This story was originally published by SeafoodNews.com, a subscription site. It is reprinted with permission.

Oyster aquaculture limits disease in wild oyster populations

December 17, 2018 — A fisheries researcher at the University of Rhode Island has found that oyster aquaculture operations can limit the spread of disease among wild populations of oysters. The findings are contrary to long-held beliefs that diseases are often spread from farmed populations to wild populations.

“The very act of aquaculture has positive effects on wild populations of oysters,” said Tal Ben-Horin, a postdoctoral fellow at the URI Department of Fisheries, Animal and Veterinary Sciences in the College of the Environment and Life Sciences. “The established way of thinking is that disease spreads from aquaculture, but in fact aquaculture may limit disease in nearby wild populations.”

Working with colleagues at the University of Maryland Baltimore County, Rutgers University, the U.S. Department of Agriculture, and the Virginia Institute of Marine Science, Ben-Horin integrated data from previous studies into mathematical models to examine the interactions between farmed oysters, wild oysters and the common oyster disease Dermo.

Read the full story from the University of Rhode Island at Phys.org

Science Center for Marine Fisheries Funds Three New Projects at Fall Meeting

November 28, 2018 — The following was released by the Science Center for Marine Fisheries:

At its fall meeting in Middletown, Rhode Island, the Industry Advisory Board of the Science Center for Marine Fisheries (SCeMFiS) awarded over $164,000 in grants for promising new marine science research.

The projects cover the impact of climate change on shellfish populations; how to properly determine the age of one of the ocean’s longest-lived species; and how offshore wind energy is likely to affect fisheries. All of the funded projects further the mission of the Center, which connects leading researchers and their partners in the industry to address critical marine science needs.

As part of the National Science Foundation’s Industry/University Cooperative Research Program, SCeMFiS used this meeting to set the shared priorities of our researchers from around the country and the industry advisors from the shellfish and finfish fisheries who approved the research.

“We see this as a great opportunity to partner with the scientific community, and we are looking forward to continue working with SCeMFiS on projects that affect our fisheries,” said Meghan Lapp, the Fisheries Liaison for Seafreeze, one of SCeMFiS’ Rhode Island members.

A full description of the funded projects is included below:

  • “The influence of global warming on the Atlantic surfclam and the ocean quahog” – Dr. Eric Powell (University of Southern Mississippi) and Dr. Roger Mann (Virginia Institute of Marine Science) will lead the study, which will examine the extent to which the populations of surf clams and ocean quahogs have shifted offshore in response to changing ocean temperatures. The study will sample and date ocean quahog and surfclam shells to identify the likelihood of a continued future shift in the species’ range. ($56,197 in funding approved)

 

  • “Ocean quahog population dynamics: validation of estimation procedures for an age-at-length key – supplement” – Dr. Powell and Dr. Mann will follow up on previous SCeMFiS research on how to properly age ocean quahogs in the northwest Atlantic. Ocean quahogs can live to over 200 years old, but their growth rates vary considerably over time. The study would continue efforts to develop a reliable way to estimate ocean quahog ages at particular lengths, known as an age-at-length key. ($29,037 in funding approved)

 

  • “Oceanography special issue on the effects of wind energy development on fisheries and the ecology of the continental shelf” – Dr. Eileen Hofmann (Old Dominion University) and Dr. Powell will work to develop a special issue of the scientific journal Oceanography, that will include 10-12 peer-reviewed papers presenting an overview on the state of research related to offshore wind development. They will cover, among other topics, the challenges faced by offshore wind development and the effect it has on nearby fisheries, fish populations, and the broader ocean ecology. ($79,200 in funding approved)

About SCeMFiS

The SCeMFiS mission 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 Washington.

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 leading 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.

Read the full release here

Bay scientists: Offshore oil drilling would put Chesapeake Bay at risk

August 21, 2018 — After the Trump administration proposed allowing oil and gas exploration off the East Coast in January, the debate has largely focused on the potential harm to the Atlantic Ocean’s water quality and marine life.

That is, after all, where any new oil rigs would sprout if the administration has its way.

But what about impacts to the Chesapeake Bay? Could the United State’s largest estuary — the subject of a federal and multi-state program centered on reducing nutrient and sediment pollution — be at risk?

Yes, say some of the Bay’s top scientists.

“I don’t think there are any places in the world where they have developed oil and gas where they have been able to avoid spills,” said Carl Hershner, director of the Center for Coastal Resources Management at the Virginia Institute for Marine Science.

Read the full story at The Bay Journal

VIMS kicks off its annual juvenile striped bass seine survey

July 9, 2018 — On the bank of the James River beside the Lions Bridge in Newport News, field assistant Matthew Oliver waded chest-deep into the warm, lapping water Friday morning, hauling a seine net.

The net wasn’t tall, but it was long — 100 feet — with floats along the top edge and sinkers along the bottom, the better to keep little baby fish from scurrying underneath and swimming away.

Oliver moved heavily in a wide arc through the water, the better to scoop up whatever was swimming in the shallows.

This was just one sweep of select sites along the shores of the James, York and Rappahannock rivers as the monthslong Juvenile Striped Bass Seine Survey kicks off.

The survey is conducted by the Virginia Institute of Marine Science (VIMS) in Gloucester Point and is the second-longest continuous striped bass index in the country. It began in 1967 and, except for a five-year hiatus starting in 1973 for lack of funding, has been conducted every summer since.

The goal is to keep a weather eye on how this iconic sport fish is doing by counting the young-of-year that spawn early in the year and will, in just a few more years, become an official part of the region’s lucrative recreational and commercial fisheries.

“Knowing how many young striped bass are produced this year helps them understand what’s coming in the future,” said VIMS marine biologist Mary Fabrizio. “It helps us better manage the fishery.”

Read the full story at the Daily Press

Researcher studies effects of microplastics on the ocean

June 12, 2018 — Anyone who has ever struggled with knowing which plastic items they can or cannot place in their recycling bin will appreciate the complex task facing Professor Rob Hale and his students at William & Mary’s Virginia Institute of Marine Science.

Hale began studying plastics in the 1990s after he and Marine Scientist Mark La Guardia discovered high levels of flame retardants in fishes from the James River. They quickly realized these compounds, added to household plastics to reduce their flammability, were somehow escaping their confines and entering the aquatic environment.

Subsequent groundbreaking research by Hale’s team and others revealed high levels of flame retardants in wastewater, e-waste sites, sewage sludges, soils, sediments, and indoor dust; as well as in minnows, earthworms, insects, birds of prey, deep-sea squid and other organisms. Related research—based on concerns that these chemicals persist in the environment and tend to accumulate up the food chain—revealed health impacts in both wildlife and people, and led to worldwide limitations on the use of the most troublesome flame-retardant compounds.

Hale’s early experience with plastics research has now poised his team for a leading role in addressing the most recent worry about plastics in the environment—the growing concern about the effects of microplastics in the ocean.

Read the full story at PHYS.org

Dr. Bill DuPaul receives award from NEFMC

May 17, 2018 — Dr. Bill DuPaul, Professor Emeritus at the Virginia Institute of Marine Science, Gloucester Point, is the recipient of the 2018 Janice M. Plante Award from the New England Fishery Management Council.

DuPaul, a resident of Ware Neck, was a pioneer of cooperative research in the Atlantic sea scallop fishery, according to a release from NEFMC.

“Dr. DuPaul is a man of great integrity,” NEFMC chairman Dr. John Quinn said “He intuitively knew that solutions to hard problems would come only when people on all sides worked together. He proved that cooperative research can break through seemingly insurmountable barriers and help resolve even the most challenging issues.”

Read the full story at the Gloucester-Mathews Gazette-Journal

 

Scallop RSA Program: NEFMC and NOAA Announce 15 Awards Selected for 2018-2019 funding

May 16, 2018 — The following was released by New England Fishery Management Council:

 

The New England Fishery Management Council and NOAA Fisheries’ Northeast Fisheries Science Center (NEFSC) are pleased to announce that 15 projects have been selected for 2018-2019 funding through the Sea Scallop Research Set-Aside (RSA) Program.

“The Scallop RSA Program truly has become one of the flagships of the scallop fishery,” said New England Council Chairman Dr. John Quinn. “The collaborative efforts that take place at sea between fishermen and researchers go a long way toward enhancing our understanding of what’s happening with the resource. The results of this RSA work funnel back to the Council and support stock assessments. Without a doubt, the RSA program helps us better manage our – Virginia Institute of Marine Science photo extremely valuable scallop fishery.”

Projects will address research priorities established by the Council, with a particular focus on resource surveys. The awards are expected to generate more than $12 million: $3 million to fund research; and $9 million to compensate industry partners who harvest set-aside quota

“We are excited to be able to work with the New England Fishery Management Council, industry, and scientists to fund sea scallop science through the Research Set-Aside Program,” said NEFSC Science and Research Director Dr. Jon Hare. “The projects funded support surveys, bycatch mitigation, and biological studies, all with the purpose of improving the information used in the management of the sea scallop resource.”

The New England Council established the Sea Scallop RSA Program to address research questions that support management of the scallop resource. The Council sets the research priorities and researchers compete for funding through a federal grant competition managed by NOAA Fisheries.

No federal funds are provided to support the research. Instead, projects are awarded pounds of scallops, which have been “set aside” from the annual fishery quota for this purpose. Successful applicants partner with the fishing industry to harvest their set-aside award to generate funds for the research. There are active research set-aside programs for Atlantic sea scallops, Atlantic herring, and monkfish.

2018-2019 Scallop RSA Award Summary

The awards fall into three categories: scallop surveys (dredge, drop camera, and HabCam); bycatch mitigation; and sea scallop biology.

Scallop Surveys

The Virginia Institute of Marine Science (VIMS) received new awards to conduct dredge surveys in Closed Area I, Closed Area II, and the Nantucket Lightship. Under an existing award from last year, VIMS also will conduct a dredge survey of the Mid-Atlantic Bight. As part of ongoing efforts to better understand scallop survey dredge performance, VIMS investigators received an award to evaluate the hydrodynamic characteristics of both lined and unlined survey dredges in the largest flume tank in the world, located in St. John’s, Newfoundland at Memorial University’s Marine Institute.

The University of Massachusetts, Dartmouth School for Marine Science and Technology (SMAST) received three awards to conduct surveys using a drop-camera array. Through these awards, researchers plan to conduct high-resolution surveys of the Nantucket Lightship, Closed Area I, Great South Channel, and select portions of the Northern Gulf of Maine Scallop Management Area.

The Woods Hole Oceanographic Institution (WHOI) will conduct Habitat Camera Mapping System (HabCam) optical surveys throughout the Mid-Atlantic Bight and on the northern flank of Georges Bank. In addition to these surveys, researchers will continue to evaluate dredge effects on habitat and habitat recovery in the Closed Area II Habitat Area of Particular Concern. Coonamessett Farm Foundation will conduct a HabCam survey of the Nantucket Lightship and Southern Flank of Georges Bank.

Bycatch Mitigation

Coonamessett Farm Foundation will continue its seasonal survey on Georges Bank, collecting information on bycatch rates for yellowtail flounder and other species relative to scallop meat yield. These data also will be used to evaluate sea scallop health and meat quality, biological questions about several flounder species, and to examine lobsters for shell disease.

Coonamessett Farm Foundation will continue its loggerhead sea turtle tagging program, receiving funds to tag up to 20 loggerheads with water activated tags. Tag data will be used to evaluate spatial and temporal overlap between loggerhead sea turtles and the scallop fishery.

Coonamessett Farm Foundation also will be testing a dredge twine-top cover net in an attempt to quantify dredge selectivity characteristics.

Sea Scallop Biology

The Virginia Institute of Marine Science will investigate sea scallop density-dependence factors that may be affecting growth, mortality, and reproduction of scallops in the Nantucket Lightship and Elephant Trunk areas. In addition, VIMS will conduct a pilot study to extend the current stock assessment model to better account for sea scallop ages with a particular focus on the Mid-Atlantic Bight and Nantucket Lightship areas.

WHOI will receive support to determine if a gonadosomatic index (GSI) can be calculated from Light Field 3D images of shucked scallops collected during fishing operations. The GSI is used to assess maturity and spawning events in many species of fish and shellfish, including scallops. If successful, this could improve the ability to collect and quantify scallop maturation and spawning data during the course of routine fishery sampling procedures.

The 2018-2019 award listings can be found on the Northeast Fisheries Science Center website at: https://www.nefsc.noaa.gov/coopresearch/news/scallop-rsa-2018-2019/.

RSA award announcements and answers to “frequently asked questions” also are available at https://www.nefsc.noaa.gov/coopresearch/rsa_program.html.

Visit the New England Council’s scallop webpage: https://www.nefmc.org/management-plans/scallops.

View the release in its entirety here.

 

NE Council Receives 2017 Scallop Survey Overview and Progress Report on 2018 Management Measures in Framework 29

October 2, 2017 — The following was released by the New England Fishery Management Council:

During its late-September meeting in Gloucester, MA, the New England Fishery Management Council received a comprehensive overview of the “very successful” 2017 scallop survey season. The Council then reviewed the range of measures under development for Framework Adjustment 29 to the Atlantic Sea Scallop Fishery Management Plan. These measures, once fully developed and approved, will apply to the 2018 scallop fishing year, which will begin on April 1 instead of March 1 as in previous years.

Five separate groups contributed to the 2017 scallop surveys:

  • The Virginia Institute of Marine Science (VIMS) conducted dredge surveys in the Mid-Atlantic, Nantucket Lightship Area, and Closed Area II.
  • UMass Dartmouth School for Marine Science and Technology (SMAST) conducted intensive surveys of Closed Area I, Closed Area II, and the Elephant Trunk Area, along with broadscale surveys of Georges Bank and the Mid-Atlantic and a drop camera survey of Stellwagen Bank in the Gulf of Maine.
  • The Woods Hole Oceanographic Institution (WHOI), in partnership with Lund’s Fisheries, conducted a Habitat Camera Mapping System (HabCam) version 5 (v5) survey of the Northern Edge on Georges Bank.
  • Coonamessett Farm Foundation (CFF) conducted a HabCam v3 survey of the Nantucket Lightship Area, as well as a HabCam v3 survey on Stellwagen Bank and Jeffreys Ledge in the Gulf of Maine, along with six dredge tows on Stellwagen. And,
  • The Northeast Fisheries Science Center (NEFSC) conducted a dredge survey on Georges Bank and a HabCam v4 survey of the Mid-Atlantic and Georges Bank.

Read the full release at the New England Fishery Management Council