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everything you wanted to know about Man O War Shoal

18K views 30 replies 14 participants last post by  Alley Cat  
#1 ·
MAN O WAR SHOAL, THE BEST FISHING REEF NORTH OF THE BAY BRIDGE

The ORP has come to the conclusion that Man O War Shoal should become the property of Commercial Oysterman in Maryland. As it has the largest deposit of prehistoric oyster shell available in the Chesapeake Bay that has been left after years and years of Fossil shell removal for replanting on commercial sites. The ORP and the CBF want to destroy Man O War for fisherman for all time. And by the way if we can stop them here they have a list ready of alternate sites they would be willing to destroy instead. Does anyone really care about fisherman north of the Bay Bridges? Does anyone really care that only 1% of the Native Oyster Bottom in the State of Maryland is left? Does anyone understand that if this prehistoric shell would be used for oyster sanctuary that over 3000 acres of bottom could be restored to help clean the bay. This shell should never be used for a put and take and take and take fishery.


The bill created to require the DNR to file an application and others about their plans are included below.





Attachment 1:

Project Description:

This project will permit the Maryland Department of Natural Resources (MD DNR) to dredge oyster shell from Man O War Shoals in Baltimore County, Maryland. Oyster shells will be recovered using hydraulic dredging equipment. The shells will be transported and planted at a variety of restoration sites around the Bay. The purpose of this project is to rehabilitate oyster bar habitat to enhance natural recruitment and/or provide a foundation for seed oysters to work toward the reestablishment of an abundant and self-sustaining oyster population in support of the Chesapeake Bay Program 2000 Agreement and the 2005 Oyster Management Plan.

Permit Time Period:
A 10-year period from 2009 through 2018 is being requested.

Time of Year that Shell will be Recovered and Planted:
Approval is requested to dredge and plant oyster shells year round.

Permit Areas for Shell Dredging:
Approval is requested for the Man O War Shoals area in Baltimore County (attachment 2).

Monitoring and Project Performance:
The environmental and socio-economic risks and benefits of this project will be monitored throughout the project period with a comprehensive evaluation provided to the permit agencies after five years.

Amount of Shell to be Recovered and Size of Shell Recovery Areas:
Authorization is requested for the recovery of up to 30 million bushels of shell during the 2009-2018 permit time period. This is approximately 30% of the estimated shell volume of Man O War Shoal. The amount of shell that will be recovered annually will be based upon the objectives and strategies of Maryland’s oyster recovery program as well as the available funding.

Methods for Shell Recovery and Planting:
Shells will be recovered using a dredging barge equipped with a hydraulic dredge using a cutter head and/or vacuum head that swings left and right. Dredge cuts will be made along the perimeter of the shoal, leaving a central “backbone” intact, to minimize any potential hydrological impact and to yield variable topography for fish habitat. The location of the cuts will be determined through surveys performed by DNR and in coordination with the Maryland Oyster Advisory Commission and other stakeholder groups working with DNR on this issue. Each dredge cut will be no wider than 500' and go no further than 1/3 the distance through the shoal, with a minimum of 75’ of un-dredged bottom left between cuts. Due to the varied thickness of the shell at Man O War Shoals, the cuts will vary in depth. Shell is estimated to vary from 15’ thick to possibly 40’ thick (Attachment 3). Shell will be dredged to a depth appropriate for the cut site and gear used by the contractor. A minimum thickness of 2 feet of shell will be left in place at the bottom of each cut.

The shells and shell fragments will be separated on site from the finer sediment materials and retained on a shell barge. The sediments will be discharged with the wash water that is used to clean the shells on the barge. The shells and shell fragments will then be transported to another site for planting, using high pressure water hoses or cannons to wash the material off the shell barge onto the oyster bar. In some cases (small sites) the shell material may be planted using a crane, excavator, or similar equipment to unload the barge.

Shell Planting Sites - Location and Size:
Replanting of the dredged shells will occur within the following oyster bar management designations: sanctuaries, harvest reserves and/or open harvest areas. The identification of shell planting sites will be based upon scientific findings of the Programmatic Environmental Impact Statement for Oyster Restoration in the Chesapeake Bay and in coordination with the Maryland Oyster Advisory Commission, Maryland’s Tidewater Oyster Committees and other interested parties as needed. The planting of shell will also be consistent with the guidelines provided in the Chesapeake Bay Program Oyster Management Plan.

Assuming that the recovered shell will be replanted at an average thickness of 3-inches (7500 bushels per acre), and assuming the full 30 million bushels of requested volume will be utilized, it is estimated that 4000 acres will be planted over the 10 year time period of the permit. Shell planting will occur in depths predominantly from 8’ to 20’ since this is where oyster bars and oyster populations mostly occur. The thickness of the shell will be from 3” to 6” in most plantings but may be thicker in some cases. All plantings will maintain a minimum of 8’ clearance to preserve navigable waters.

Stakeholder Coordination:
The MD DNR will coordinate the shell dredging and planting program with the Maryland Oyster Advisory Commission, Tidewater Oyster Committees, and other interested parties as necessary. Included in this coordination will be the overall objectives for the program, the allocation of material among management designations, location of shell planting sites, project specification guidelines, and project performance standards.

Maryland Historical Trust has been consulted and determined that there are no archeological/cultural concerns within the proposed dredging area (Attachment 4). This project will have no impact to submerged aquatic vegetation (SAV) as there are no SAV beds delineated in or adjacent to the proposed permit area (Attachment 5).


Project Justification:

Based on the Maryland Oyster Advisory Commission’s 2007 Interim report, clean (sediment-free) oyster shell or a comparable substrate is essential for successful settlement of oyster larvae. A recent study reported that more than 80% of Maryland’s oyster habitat has been significantly impacted by sediment over the past 25 years, and much of the habitat that remains is of poor quality consisting of shell with heavy sedimentation (Smith el al. 2005).

More than 10,000 acres of oyster bar habitat will likely need to be rehabilitated to re-establish a population of oysters comparable to the levels observed between 1920 and 1970. Given the estimated shell capacity of Man O War Shoals and the scale to which habitat rehabilitation is needed, MD DNR recognizes that shell dredging alone will not meet the habitat needs of the program. The ability of MD DNR and its oyster partners to achieve this objective will depend upon the prudent use of available oyster shells, combined implementation of new programs, and continued exploration of innovative strategies.

MD DNR is working closely with our oyster partners to develop alternative strategies for rehabilitating oyster bar habitat consistent with the guidelines provided in the 2005 Chesapeake Bay Oyster Management Plan. The strategies currently being pursued are an expanded alternate material program and a new program involving the recovery of shell that was previously planted as part of the upper bay shell program but which is currently covered with sediment.




References:

Smith, G. F., D. G. Bruce, E. B. Roach, A. Hansen, R. I. E. Newell, A. M. McManus. 2005. Assessment of Recent Habitat Conditions of Eastern Oyster Crassostrea virginicus Bars in Mesohaline Chesapeake Bay. North American Journal of Fisheries Management 25:1569-1590.
 

Attachments

#2 · (Edited)
MAN O WAR SHOAL, THE BEST FISHING REEF NORTH OF THE BAY BRIDGE

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This is a very informative post, dredged from the TF vault by David Dansberger 2009 .The Man O War shell dredging public meeting has been postponed due to the snow storm. It will be rescheduled on Tuesday,February 2nd @ Sparrows Point High school,700 North Point Rd., 7pm.
 
#3 ·
Still makes no sense to me why wild oysters are still harvested when levels are so low and it takes so much effort and money to seed reefs.

Just like when Rockfish population got low - shut oyster harvest down for a while and give nature time to replenish them.
 
#7 ·
How many millions of dollars does the DNR spend annually to "stock" oyster spat to sustain the oyster industry. I would be willing to bet that some type of program could be devised to pay the oyster fleet the amount of profit that they make with the stipulation that they let the oysters alone to recover. I submit that would probably still be cheaper than the cost to sustain the industry by put and take methods.

The upper bay above Pooles Island was dredged like that several years ago and the fishing still has not recovered.
 
#8 ·
IMHO, the State of Maryland could pay the oystermen not to harvest wild oyster. The pay could be based on the average of the last four years of their tax returns. (Their take home pay) Pay them 70percent of that average for the next five years. Keep in mind that they would not have any expenses related to oystering. They now have the money and free time to pursue other endeavors, either on or off the bay. The best part would be that the wild oysters just might have a chance. IMHO this is a KISS idea.
 
#9 ·
Someone connected to ORP told me years ago - it would be cheaper to throw silver dollars over the side and let the tongers pull them up - rather then the put / take oysters.

Harvest methods have become much better - look at the advantage a GPS with track gives oystermen. No more wasting time over already harvested areas.
 
#15 ·
...and silting over, a significant problem that did not exist just 30 years ago. The over-fishing has been addressed, oysters are showing a resilience to water quality and resistance to disease but silting (choking) has no simple solutions.
 
#13 ·
My reasoning for encouragingtheir own farming is you get back what you put in and a break on harvesting may help increase some natural stocks for a combined increase in oysters which would create more filtering biomass, which in turn filters more water. More clean water would create more clean environments, which could lead to more places more oysters and eventually fewer dead zones. All benefit in the long run and the state can eventually stop funding a failed policy.
 
#16 ·
"over-fishing has been addressed"

Not really when the state has to raise and stock millions of spat each year.

If the oysters were left to develop undisturbed beds that develop vertically as well as horizontally, they would be more able to cope with siltation and there would be more that survived the various diseases just by shear numbers. There might even be enough survive long enough to develop an immunity to the diseases.
 
#17 ·
Silting over doesn't happen on 3D bars that are are built up off of the bottom. Take Man-O-War, for instance, it has been around for a very long time. But the watermen and their politicians and the DNR are in favor of destroying it for personal financial gain for a few with no concern about what tomorrow brings for all of our children. Go figure.

If they want to start a concrete rubble reef fund to build 3D reef structure, I'll be more than happy to pony up.
 
#18 ·
Jerry - They are left to develop in 9000 acres of sanctuaries that have been off-limits and continually expanded since the program started. What I referred to was the highly restricted number of commercial oyster licenses and wild harvest areas as compared to historical numbers and areas. I realize that many would like to end wild harvest of oysters altogether. That is likely not going to happen until the transition to leased bottom aquaculture has been successfully implemented. The Man O' War Shoal debate is front and center in that discussion. I raise oysters (not for sale, for contribution to the sactuaries) and have done it both ways, cages and the bottom. The bottom oysters, even raised up off the bottom on decent substrate (actual shells and other material) are completely covered by silt within 2 years. What the State biologists will tell you is that, knock on wood, is these modern oysters raised from laboratory spat as well as the wild ones seem to be highly disease resistant.
 
#20 ·
The major reason for silting is watershed development and runoff. The Man O War shoals are also covered in thick silt. When you see the black barriers around home construction sites, that is a requirement to help reduce runoff. It helps to a degree. All of the roads built in the past 30 years carry a large amount of runoff into the Bay. There is truth to the statement by watermen that working oyster beds helps keep them healthy.
 
#21 ·
Silting is not a new process. Muddy water has been running downstream after every rainfall since Adam & Eve. Trying to 'make' an oyster survive where the conditions aren't suitable is a waste of time and resources. Laying a pile of shells on the bottom has already failed over and over again. Otherwise, there would be no need for more shell. Natural, solid bars in the bay have survived everything nature has thrown at them for centuries, until the oyster dredge came along.

Dismantling a pefectly good live oyster bar from the upper bay so that somebody else down the bay will gain a couple of years of oyster harvest before the shell is spread out, broken up and lost forever into the silt shows how relentless the drive is for cash-in-pocket. We still have a ORP/MWA shill on here that is trying to tell us how great this will be for everybody. Sorry, it's not working.

We would like our reef to continue to do its job right where it stands now. Or we should be paid for our loss of habitat and clean water benefits. There should also be an environmental damages escrow account.

The watermen need to start a concrete rubble reef fund. Nothing like a permanent bar with a solid 3D foundation that will keep the oysters up high out of the silt so they survive. Right? The only reason they want the shell is because concrete would prevent dredge harvesting of those oysters that are planted on it.
 
#24 · (Edited)
Silting is not a new process. Muddy water has been running downstream after every rainfall since Adam & Eve. Trying to 'make' an oyster survive where the conditions aren't suitable is a waste of time and resources. Laying a pile of shells on the bottom has already failed over and over again. Otherwise, there would be no need for more shell. Natural, solid bars in the bay have survived everything nature has thrown at them for centuries, until the oyster dredge came along.

Dismantling a pefectly good live oyster bar from the upper bay so that somebody else down the bay will gain a couple of years of oyster harvest before the shell is spread out, broken up and lost forever into the silt shows how relentless the drive is for cash-in-pocket. We still have a ORP/MWA shill on here that is trying to tell us how great this will be for everybody. Sorry, it's not working.

We would like our reef to continue to do its job right where it stands now. Or we should be paid for our loss of habitat and clean water benefits. There should also be an environmental damages escrow account.

The watermen need to start a concrete rubble reef fund. Nothing like a permanent bar with a solid 3D foundation that will keep the oysters up high out of the silt so they survive. Right? The only reason they want the shell is because concrete would prevent dredge harvesting of those oysters that are planted on it.
I would assume that the oyster dredgers would be opposed to bars with a solid 3D aspect as would those that crab with trot lines as it causes snags for their lines.
In the recent past even the MWA was opposed to MOW dredging, wonder what their position is now.
The below link is a Sunpapers article from 2011
http://articles.baltimoresun.com/20...homson-outdoors-column0703-20110702_1_bay-oyster-population-man-o-war-shoal-dnr
 
#22 ·
Silting is not new but was not a serious problem until recent history, with a massive increase in watershed population density. Occasionally we have major weather event, like the effects of an offshore hurricane, creating enough water turbulence that it helps to clean the bars. This may be what happened as recently as 2012. Another challenge for bottom growers is predation by those big ole' flat things with double-heads. Once they locate a new bar, they text all of their buddies.
 
#23 · (Edited)
Pretty sure the dam on the Susky has a impact also. Wasn't there an article about the amount of silt build up? or something on the north side of the dam. How it gets released every time they have to open the gates due to storms up north?
Might be wrong, but I seem to recall the oyster beds being declared useless after the one storm due to being silted over from the amount of water released from the dam.

I'm with the group that says if they dredge it.let's see what the impact is. Only way to see who is right. Won't it takes 3 or more years for oysters to grow on this material. Might be the same amount of time to see how the shoal does with fishing. We can all golf during that time, LOL.
 
#27 ·
As far as I know shell dredging in the upper bay took place for over 40 years with the shell being shared between the dredger(CJ Langenfelder) and the State but not from MOW. I remember seeing the dredgers at work just south of Pooles Island and the rivers of mud that flowed down current. I also remember mountains of shell being stored in White Marsh for use by I believe Campbell's Concrete.
There are several links posted on earlier thread witch show the history of the project.
The results show it was a failed project which in its later years became a zombie project untill finally halted by the Erlich administration.
 
#31 ·
Don't forget a large turnout is needed at the meeting next week.

Tuesday, February 2, 2016
6:00 pm to 7:00 pm Poster Session
7:00 pm Public Hearing
Sparrows Point High School Auditorium
7400 North Point Road
Edgemere, Maryland 21219

Wednesday, February 3, 2016
6:00 pm to 7:00 pm Poster Session
7:00 pm Public Hearing
Governor Hall at Sailwinds Park
200 Byrne Street
Cambridge, Maryland 21613