Posts Tagged ‘shellfish’

2011 Marylanders Grow Oysters Program

Monday, March 14th, 2011

River coordinators from 13 of 18 Chesapeake Bay participating tributaries met on March 2 with Maryland Department of Natural Resources (DNR) staff on Kent Island to prepare for the Marylanders Grow Oysters summer growing season.

The 13 local program sponsors, managers from the DNR Fisheries Service shellfish division and the Oyster Recovery Partnership spent the day discussing the results of the past three years, the benefits of the program for oysters and for the Bay citizenry, and how the program can be improved.

Coordinators shared their experiences and advice with one another to improve their efforts and methods. They also discussed logistics for the collection of oysters this summer, which will be planted in local sanctuaries. Last summer, approximately 1.9 million oysters were grown by the volunteer growers and were planted in sanctuaries.

Through the Marylanders Grow Oysters Program, citizen volunteers tend to young oysters growing in wire mesh cages suspended from private piers for their first year of life. The oyster spat and cages are provided by DNR and other program partners at no charge to the volunteers. The oysters require minimal care – mostly rinsing the cages every two weeks.

Citizen oyster growers enjoy the personal rewards of stewardship and learn about oysters while contributing to the enhancement of an oyster reef in their local tributary. The year-old oysters are collected and planted in a local oyster sanctuary, and a new group of young oysters is distributed to participating growers to start the process again.

In more good news for Maryland’s native oyster, DNR’s most recent oyster survey showed promising results. The number of spat or baby oysters in Maryland waters is at its highest level since 1997, the survival rate for young oysters is also up and more Marylanders are looking to start up or expand aquaculture businesses.

Governor O’Malley launched the program in 2008 with nearly 900 oyster cages along the Tred Avon River. DNR expanded the program with various oyster partners and now about 8,000 cages, tended by approximately 1,500 growers, are located in 18 tributaries. The oyster cages are built by Maryland inmates at Maryland Correctional Enterprises in Hagerstown and the Eastern Pre-Release Unit in Church Hill. Additional inmates assist with oyster spat production at the DNR hatchery in St. Mary’s County.

The Marylanders Grow Oysters Program is managed by the DNR in conjunction with the Oyster Recovery Partnership, the University of Maryland Center for Environmental Science which produces the majority of the spat, and the Maryland Department of Public Safety and Correctional Services.

For more information about Marylanders Grow Oysters visit oysters.maryland.gov

source: MD DNR

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Maryland Re-Opens Aquaculture Financing Loan Program to New Applicants

Thursday, December 9th, 2010

Maryland has announced that its new shellfish aquaculture financing program will be accepting a second round of applications between January 2 and January 31, 2011. The program received 16 applications totaling more than $1.3 million during the first round, which closed on November 30.

There is a total of $2.2 million currently available for the program, which is a cooperative effort among the Maryland Department of Natural Resources (DNR), the Maryland Department of Agriculture (MDA), the University of the Maryland Sea Grant Extension (UME) and the Maryland Agricultural and Resource-Based Industry Development Corporation (MARBIDCO).

“We are very pleased with the original response to this program, which we created to provide affordable financing to watermen and other individuals starting or expanding commercial shellfish aquaculture operations,” said Governor O’Malley. “This second application period will allow those who were unable to meet the original deadline another opportunity to participate.”

The new shellfish aquaculture loan program is a subsidized program with principal payments returning to a revolving fund to support additional shellfish aquaculture funding needs in the future. The loan program offers partial loan forgiveness for borrowers meeting certain performance conditions. MARBIDCO is pricing the loans at a fixed annual interest rate not to exceed 4.5 percent. A Shellfish Aquaculture Financing Committee, including representatives from DNR, MDA, UME, a Maryland farm credit association, and MARBIDCO, has been established to evaluate applications and proposed business plans.

As with the first round of funding, MARBIDCO and DNR intend to give priority to applicants who will begin shellfish production operations in 2011. Those who plan shellfish production operations in 2011 must hold a DNR shellfish aquaculture lease, or must have applied to DNR for a shellfish aquaculture lease by no later than 5:00 p.m., January 31, 2010.

More than two-thirds of the funding for the program comes from a federal blue crab fishery disaster allocation for Maryland. The National Marine Fisheries Service award, which was requested by Governor O’Malley and advocated for by Senator Mikulski and Maryland’s congressional delegation in 2008, has supported a variety of watermen work programs as well as a program to retire inactive commercial limited crab catcher licenses. Additional funds are being provided by DNR to supplement the federal funding.

To begin the application process, interested parties may contact Karl Roscher of the Maryland Aquaculture Coordinating Office (MDA) at 410-841-5724. An application and aquaculture business planning template are available at www.dnr.maryland.gov/fisheries/oysters/industry/funding.asp.

source: MD DNR press release

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Maryland to Provide Subsidized Shellfish Aquaculture Loans

Wednesday, October 27th, 2010

A new Maryland program will provide subsidized loans to business owners interested in launching or expanding commercial shellfish aquaculture operations in Maryland.

Of the State’s $10.6 million oyster restoration budget for fiscal year 2011, $2.2 million in subsidized loans will be available for aquaculture projects through a partnership between the Maryland Department of Natural Resources (DNR) and the Maryland Agricultural and Resource-Based Industry Development Corporation (MARBIDCO).

Maryland now offers a mix of State and Federal funding to support a revolving loan fund administered by MARBIDCO. The University of Maryland Extension (UME) and the Maryland Department of Agriculture (MDA) are also contributing to this effort, providing training and business planning assistance to current and prospective shellfish growers.

More than two-thirds of the funding for the program comes from a $15 million federal blue crab fishery disaster allocation to Maryland. The National Marine Fisheries Service award, which was requested by Governor O’Malley and advocated for by Senator Mikulski and Maryland’s congressional delegation in 2008, has supported a variety of watermen work programs as well as a program to retire inactive commercial limited crab catcher licenses.

Enacted in September, Maryland’s Oyster Restoration and Aquaculture Development plan increases Maryland’s network of oyster sanctuaries from 9 percent to 24 percent of remaining quality habitat; increases areas open to leasing for oyster aquaculture and streamlines the permitting process; and maintains 76 percent of the Bay’s remaining quality oyster habitat for a more targeted, sustainable, and scientifically managed public oyster fishery.

Shellfish aquaculture startup expenses can run from $5,000 to more than $100,000 depending on the scope of the enterprise. Obtaining a loan from traditional commercial lenders for aquaculture business projects can be challenging for small enterprises and individuals considering the two- to three-year growing period between oyster planting and growth to market size, as well as frequently the lack of available business equity and collateral security.

“This is a good start and I am glad the Governor has dedicated this initial funding to help watermen and others who are interested in pursuing aquaculture and a new business venture,” said Larry Simns, president of the Maryland Watermen’s Association.  “We have a lot to learn in this phase of the oyster arena and it appears we have men and their families who may be willing to try to make a go of it. Any financial help from the State will make it that much more doable.”

Maryland’s new aquaculture loan program is a subsidized program with all principal payments returning to a revolving fund to support an additional round of future funding.  The loan program also offers a partial loan forgiveness element for borrowers meeting certain performance conditions. MARBIDCO is pricing the loans at a fixed annual interest rate not to exceed 4.5 percent.

The State is establishing a Shellfish Aquaculture Financing Committee ? including representatives from DNR, MDA, UME, a Maryland farm credit association and MARBIDCO ? to evaluate applications and proposed business plans.

Because the demand for funding is expected to exceed short term financial resources, MARBIDCO and DNR intend to give priority to applicants who will begin shellfish production operations in 2011. Those who plan shellfish production operations next year must hold a DNR shellfish aquaculture lease, or must have applied to DNR for a shellfish aquaculture lease by no later than 5:00 p.m., Monday, November 15, 2010.   Applications for financial assistance are now being accepted by MARBIDCO, and the deadline for applications to be submitted is Tuesday, November 30, 2010.

Maryland’s FY 2011 oyster restoration budget of $10.6 million will be allocated as follows:

* $2.48 million for aquaculture development — training, technical support, loan program;

* $3.72 million for sanctuary program / ecological restoration — habitat rehabilitation, hatchery seed oysters, MGO program, program management;

* $1.53 million indirect operational support for all programs — bottom surveys, monitoring and assessment, supportive services, staff, enforcement, buoy placement and maintenance; and

* $2.91 million for management of the public oyster fishery — habitat rehabilitation, seed oysters, program management.

A shellfish aquaculture financing program application form, aquaculture business planning template, fact sheet and checklist of required submission items is available at www.dnr.maryland.gov/fisheries/oysters/industry/funding.asp.

Information about the financing program and starting an aquaculture business in Maryland can also be obtained from the MDA Aquaculture Coordinating Office at (410) 841-5724.

Information concerning shellfish aquaculture leases may be obtained by calling Steve Schneider of the DNR Fisheries Services at (410) 260-8329.

source: MD DNR

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October is Maryland Seafood Month

Friday, October 1st, 2010

In conjunction with National Seafood Month, Maryland officials have declared October “Maryland Seafood Month.”

“Seafood is one of Maryland’s greatest family traditions and part of our identity. Generations of hard-working watermen make their living from the Chesapeake Bay and its tributaries and people come from far and wide to enjoy the delicious finfish and shellfish they catch,” said Governor O’Malley. “Purchasing Maryland seafood also stimulates the local economy by supporting local watermen, aqua farmers, processors, and countless others involved with the Maryland seafood industry. Maryland Seafood Month’ is as much a tribute to Maryland’s seafood ‘family’ as it is a celebration of our greatest natural resource.”

Maryland’s blue crabs are at their largest in the fall, after having grown all summer. They also have not shed their shell since late September, which makes them very full and heavy. An abundant supply of large crabs is available at seafood markets at very reasonable prices. The large supply has lowered the price dramatically and consumers should take advantage of prices of the very large crabs now and enjoy hot and spicy Maryland blue crabs on a crisp autumn weekend. Hold a half-time crab feast or tailgate party. Just line your serving area with plastic then cover with newspapers for easy clean-up. Or serve chilled steamed Maryland blue crabs.

Seafood quality and safety has been, and continues to be, another Maryland tradition. Our seafood is monitored by several state agencies, local health departments and the U.S. Food and Drug Administration. These agencies conduct regular product and plant inspections and water tests ensuring that Maryland seafood is wholesome. In addition, Maryland crab meat undergoes a voluntary quality control and sanitation inspection. Maryland is the only state that has this extra level of inspection for crab meat. Such rigorous standards are another reason that Maryland crab meat is superior to all other crab meat in the world!

Maryland seafood is more than delicious. An excellent source of high quality protein, seafood is easily digested, generally low in fat, sodium and calories and high in important vitamins and minerals. In addition, seafood contains Omega-3 fatty acids, believed to be effective in lowering cholesterol and the risk of heart disease.

“Eating Maryland seafood is a delicious part of a healthy diet,” says Agriculture Secretary Buddy Hance. “Maryland blue crabs are at their largest in the fall, after having grown all summer. October also signals the harvest of savory, plump oysters. Our world-famous state fish, striped bass, known locally as rockfish, is also a tasty and popular fall dish.”

When purchasing fish, look for signs of freshness and quality: bright, clear eyes, scales that adhere tightly to the skin, skin that springs back when lightly pressed, bright pink or red gills and a mild sea breeze scent. Crabs and oysters should be purchased live. Crabs should be lively and you should discard any dead crabs before cooking. Oysters purchased in the shell should have tightly-closed shells or should close when touched. Both types of shellfish should be cooked the same day as purchased. Always rinse finfish and shellfish with cold water before cooking. Cooked seafood, as with all cooked food, should not come into contact with or be stored in the same container as raw food. This is to protect from cross-contamination of bacteria that is normally found on raw food products. As with beef, poultry and pork, proper cooking kills bacteria in seafood. Careful clean up of preparation area and utensils is always important with all raw food products.

For tailgating or harvest gatherings, try these easy to transport Maryland crab recipes.

SOUTHWESTERN-STYLE CRAB WRAPS

1/3 cup slightly softened cream cheese
3 tablespoons mayonnaise
1 1/2 tablespoons mild or medium-hot picante sauce
1 tablespoon finely chopped green onions or chives
2 teaspoons Worcestershire sauce
16 ounces picked-over backfin crabmeat
salt and pepper to taste
1/2 cup very well drained bottled roasted sweet pepper or pimiento, chopped
1/2 cup shredded mild cheddar or jack cheese
4 large (11 inch or similar) flour tortillas
About 8 large lettuce leaves

In a large bowl stir together cream cheese, mayonnaise, picante sauce, green onion, and Worcestershire sauce until well blended. Lightly fold in crab meat. Season with salt and pepper, as desired. Dividing the mixture equally, spread it evenly over surface of tortillas. Pat roasted peppers dry with paper towels. Dividing equally, sprinkle them, along with the cheese, evenly over crab mixture. Pat lettuce leaves completely dry on paper towels. Lay lettuce leaves on tortillas, patching and tearing as necessary, to completely cover filling. Press down leaves to compact mixture as much as possible. Fold up one side of tortilla about 1 inch to form a bottom and hold filling.

Then, working from one perpendicular side, roll up tortilla neatly. If desired, cut crosswise across of the tortilla to trim off excess dough and to expose the roll-up filling. Tightly roll up wrap in wax paper, twist the paper ends to prevent unrolling. Repeat with remaining tortillas. Wraps can be made several hours ahead and refrigerated until serving time. Remove from the refrigerator to warm up slightly before serving. Remove paper from around wraps just before serving. Make 4 burrito-size wraps.

Steamed Blue Crabs

½ Cup Seafood Seasoning
½ Cup Salt
3 Cups White Vinegar
3 Cups Beer (or water)
3 Dozen Live (and lively) Maryland Blue Crabs

Mix seasoning, vinegar and beer (or water) well. Put one-half crabs in very large pot with rack and TIGHT fitting lid. **Pour one-half of seasoning mixture over top. Add rest of crabs and remaining liquid. Steam, covered, until crabs turn bright red in color, about 20 to 30 minutes. Serve hot or cold. Make about 6 to 12 servings, depending upon size of crabs and other foods served.

** If two pots are used, layer crabs and measure seasoning mixture accordingly.

source: Maryland Department of Agriculture

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Maryland DNR Oyster Aquaculture Permits

Wednesday, September 8th, 2010

The Maryland Department of Natural Resources (DNR) is now accepting applications for new aquaculture permits under new oyster leasing regulations. DNR will also be announcing its overall oyster management budget including a package of technical and financial opportunities for aquaculture ventures later this month to help accelerate the growth of this industry in Maryland and create new jobs.

Regulations to implement the State’s new Oyster Restoration and Aquaculture Development Plan became effective on September 6.  The regulations identify thousands of new acres open to leasing for aquaculture; establish a new application process and rules for aquaculture; identify areas off limits to leasing to support a continued public oyster fishery; and identify the State’s new network of oyster sanctuaries, which are expanding from 9% of the Bay’s remaining oyster bars to 25%, including some of the most productive bottom.

The plan was reviewed through a public process that included more than 150 meetings.  Numerous adjustments to the initial proposal were made to accommodate the concerns of affected stakeholders, including commercial watermen, members of the aquaculture industry, recreational fishermen, the environmental community, Marylanders Grow Oyster participants and other interested citizens.

“The newly adopted plan is very reasonable given the status of the Bay’s oyster population and interests of all of Maryland’s oyster stakeholders,” said Secretary John Griffin, “However, I have offered the commercial oyster industry one last opportunity to propose changes that meet our objectives for oyster restoration and aquaculture development, are based on industry consensus, and honor the supportive comments of our many other stakeholders.” The majority of affected counties submitted proposals by the September 2, 2010 deadline and they are currently under consideration.

Since 1994, the Chesapeake Bay’s oyster population has languished at 1 percent of historic levels; the amount of oyster bars has decreased 80% from 200,000 to 36,000 and the number of harvesters has dwindled from 2,000 in the mid 1980s to just over 500 annually since 2002. Today there are only eight oyster processing companies in Maryland, down from 58 in 1974.

Stakeholders can View the new sanctuaries and leasing areas at www.dnr.maryland.gov/fisheries.

Information on the leasing application process is available at http://www.dnr.state.md.us/fisheries/news/story.asp?story_id=88

source: MD DNR

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Magothy Oyster Gardening 2010-2011

Tuesday, August 3rd, 2010

The Magothy River Association, in conjunction with the state sponsored “Marylanders Grow Oysters” program, is again recruiting oyster gardeners for the 2010-2011 season. If you have access to a pier on the Magothy River, and can spare a few minutes every week or so, you can do this!  The MGO program is free to all participants.

This is at least a one year commitment. The oysters you grow will be placed on restored oyster reefs in the Magothy River in the summer of 2011.  We ask that you consider taking a new batch of oysters at that time to start the process over again.

This year the logistics are slightly different.  Many of you still have cages ready for the new spat. Many of you participated last year but turned in your cages. Many of you will be starting fresh in the program. When signing up, please indicate the following scenarios that apply:
1. I have __ cages and would like to participate again.
2. I participated last year but do not have the cages. I would like __ cages.
3. Last year, the location where I picked up my cages was _______________.
4. I am new to the program and will take up to four cages.

To sign up, send an e-mail to magothyriversavers at yahoo.com with your name, street address, phone, e-mail, and above information. A picture of the cage can be found at the below web site. The cut-off for signing up is September 1, 2010.

The oyster-spat pickup is tentatively planned for a weekend in September. Details will be sent as the program evolves.

For more information please visit the following website: http://www.h2006.net/MRAOys01

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Section of St. Clements Bay Reopens for Shellfish Harvesting

Thursday, February 18th, 2010

The Maryland Department of the Environment has reopened a portion of St. Clements Bay in St. Mary’s County for shellfish harvesting, after recent evaluations showed improvements in bacteria levels in the waterway.

A portion of St. Clements Bay downstream of Tomakokin Creek, part of Canoe Neck Creek, and part of St. Patrick Creek have been reclassified from closed to open to shellfish harvesting, effective Feb. 15, 2010. Those sections had been closed for harvesting since 1997 after tests showed elevated bacteria levels. The headwaters of St. Clements Bay, Canoe Neck Creek, and St. Patrick Creek will remain closed to harvesting.

MDE monitors bacteriological water quality and conducts pollution source surveys to determine which areas are safe for the harvesting of shellfish. The Department is required to close areas that do not meet the strict water quality standards for shellfish harvesting waters, and it has a longstanding policy to reopen areas to shellfish harvesting when water quality improves. These actions ensure continuance of Maryland’s reputation for safe and wholesome seafood products and maintain compliance with the National Shellfish Sanitation Program.

Shellfish (oysters and clams) are filter feeders with the ability to filter water and get food from microscopic organisms in the water. If the waters are polluted, this filtering process can concentrate viruses or bacteria that are potentially harmful to people. Oysters and clams are often eaten raw or partially cooked and must come from waters that are not polluted.

MDE will continue to monitor water quality in the area. A map of the area is available at

http://www.mde.state.md.us/assets/image/StClementsBayOpening.pdf

source: MDE press release

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Maryland, Virginia and Army Corps of Engineers Agree to Preferred Alternative for Chesapeake Bay Oyster Restoration

Tuesday, April 7th, 2009

On April 7, 2009 the Chesapeake Bay Oyster Restoration Programmatic Environmental Impact Statement (PEIS) Executive Committee announced their agreement to identify a native-only restoration strategy as the preferred alternative in the final PEIS due to be published in late June. The Governors of Maryland and Virginia praised the decision.

“Over the past two years, the State of Maryland and the Commonwealth of Virginia have built an unprecedented partnership to restore the health of the Chesapeake Bay and its living resources,” said Maryland Governor Martin O’Malley. “I am extremely pleased that, together with the U.S. Army Corps of Engineers, we have reached an agreement on a preferred oyster restoration alternative, one that will not threaten the Bay’s already stressed ecosystem. We look forward to finalizing this process over the next few months, and to collaborating with our partners in Virginia to use new science developed through this extraordinary study to support both the ecological restoration of our native oyster and the revitalization of our oyster industry with emphasis on new aquaculture opportunities.”

On Friday, April 3, the Maryland Department of Natural Resources submitted a proposal for federal stimulus funds in the amount of $10 million to fund oyster related projects. The proposal included projects to recreate and/or place natural/alternative oyster reef substrate, produce and plant oyster spat and enhance hatchery productivity and monitor oyster populations and water quality for oyster health on restoration sites. The State of Maryland currently has $5 million slated for oyster projects during Fiscal Year 2009, which will supplemented by additional funding from federal partners: $1 million via Army Corps of Engineers and $2.6 million from NOAA through the Oyster Recovery Partnership.

“Virginia has long been committed to finding solutions that address the decline in oysters in the Chesapeake Bay and we’re proud of the collaborative progress we’ve made through a strong regional partnership with the U.S. Army Corps of Engineers, Maryland, and federal agencies,” said Virginia Governor Timothy M. Kaine. “While we have seen certain promise in ariakensis aquaculture from the Virginia Seafood Council trials over the past seven years, we agree-based on the recommendations of our Virginia Institute of Marine Science-that moving forward we should focus primarily on restoring the Bay’s native oyster. We’re pleased the Corps will allow for possible continued ariakensis experiments under tightly-controlled conditions so that we can continue answering scientific questions in the future.”

The Army Corps of engineers commended the Committee’s cooperative efforts.

“Based on the current state of the science and extensive public review, the use of non-native oysters in the Chesapeake Bay, its tidal tributaries and the coastal bays and waters of Maryland and Virginia poses ecological risks. Therefore, it is prudent for us to adopt a native oyster alternative, while allowing for scientific research for improving our understanding of non-native oyster ecology and restoration implications. This is critical since the PEIS was inclusive whether the native oyster can make a full comeback Bay wide,” said Col. Dionysios “Dan” Anninos, Norfolk District commander, during a media teleconference.

A 30-day public comment period will follow publication of the final PEIS, with a formal Record of Decision expected to be published in late July.

The Executive Committee includes the Norfolk District, U.S. Army Corps of Engineers, and the secretaries of natural resources for the State of Maryland and the Commonwealth of Virginia, working with the U.S. Environmental Protection Agency, the National Oceanic and Atmospheric Administration, U.S. Fish and Wildlife Service, the Potomac River Fisheries Commission, and the Atlantic States Marine Fisheries Commission.

Following is the complete joint statement agreed to by the Committee:

Based on the current state of the science, and extensive public discourse the use of non-native oysters in Chesapeake Bay, its tidal tributaries, and the coastal bays and waters of Maryland and Virginia poses unacceptable ecological risks.

Therefore, it is prudent for the U.S. Army Corps of Engineers, the State of Maryland, the Commonwealth of Virginia and Potomac River Fisheries Commission (PRFC) to adopt a native oyster only preferred alternative for purposes of the PEIS. In selecting the native oyster alternative, the Corps, together with the cooperating federal agencies, the State of Maryland, the Commonwealth of Virginia and PRFC will remain fully committed to using only the native oyster to work towards revitalizing oyster restoration and aquaculture in meeting commercial and ecological goals. Furthermore, the State of Maryland, the Commonwealth of Virginia and PRFC will work towards implementing biologically and economically sustainable harvesting measures for the public oyster fishery. Finally, the Corps, together with the cooperating federal agencies, the State of Maryland, the Commonwealth of Virginia and PRFC will pursue the establishment of realistic metrics, accountability measures and a performance based adaptive management methodology for all efforts in revitalizing the native oyster for purposes of achieving commercial and ecological goals.

In selecting this preferred alternative, the Corps is aware that future scientific investigation may be proposed for purposes of improving our understanding of non-native oyster ecology and restoration implications. The U.S. Army Corps of Engineers will consider such proposals only when they are part of a scientific research framework. The research framework must be reviewed and approved by the PEIS lead and cooperating agencies and PRFC. A key criterion for approval of any such proposal will be to demonstrate that the proposal will not pose unacceptable ecological and socio-economic risks. Utilizing established regulatory process, the review of any such proposal will include consultation with the Atlantic States Marine Fisheries Commission and a process agreed to by the partner agencies to obtain scientific advice and peer review similar to that which was utilized for the development of this PEIS.

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Maryland Department of Natural Resources 2008 Oyster Survey

Thursday, January 15th, 2009

Maryland Department of Natural Resources fisheries biologists recently concluded the 2008 oyster survey, an annual assessment of the health and population of oyster bars in Maryland’s portion of the Chesapeake Bay.  Since 1939, each fall biologists use a dredge to monitor natural oyster bars, seed production and planting areas, dredged and fresh shell plantings and oyster sanctuaries.

“Preliminary results from 2008 indicate that reproduction was poor throughout most of the bay, with the exception of the lower eastern shore areas of Tangier Sound, Honga River, and the Little Choptank River,” said Mitch Tarnowski, DNR fisheries biologist. “In general, mortalities and oyster disease levels appear to be relatively low again this year.”

During the late 1950’s, biologists starting seeing the effects of Dermo (Perkinsus marinus) and MSX (Haplosporidium nelsoni) diseases on the bay’s oyster population.  While not harmful to humans, these parasitic organisms infect oysters and have lead to the death of up to 90 percent of oysters in some areas.  Both diseases thrive in higher salinities, so mortality is much higher in the lower parts of the Bay.

Typically, disease causes the greatest problems during years with higher than average salinity brought about by lower than normal stream flow. With higher salinity in the bay between 1999 and 2002, MSX, Dermo and oyster mortality was higher than average. The relatively wet years between 2003 and 2006 translated to reduced disease pressure and lower oyster mortality.

As part of the 2008 survey, biologists assessed more than 1,800 oysters collected from 282 oyster bars. The dry summer of 2007 did not result in high disease levels similar to previous dry years.  Dermo increased in 2007, but remained below normal in both prevalence and intensity.  MSX increased in frequency, but for the fifth straight year observed oyster mortality remained low.

“Oyster mortality in 2006 and 2007 were the two lowest years since the 1980’s.  It’s too early to know if this is a trend, but this is a very positive development that we will be monitoring carefully,” said Mike Naylor, Director of DNR’s Shellfish Program.

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