From: | coastwatch@acadia.net |
Date: | 21 Feb 2001 17:09:40 -0000 |
Reply: | cpeo-military |
Subject: | [CPEO-MEF] BIW's floating drydock from China - exotics aboard? |
[Towards the middle of the posting the author poses a question for CPEO MEF readers. --Aimee] Friends - Bath Iron Works, builder of Aegis missile cruisers and other naval vessels, has just had a very large floating drydock towed from its assembly place on the Chinese coast to the BIW/General Dynamics facility on the Maine coast. Inquiring scientists want the hull and ballast water spaces examined for exotic marine pest species, such as the asian shore crab, or Chinese mole crab. How do we get these fine folks to agree to do so? The voyage of the drydock, thanks to a typhoon and other unforeseeable events , took triple the planned length of time. The drydock left China on August 27, 2000, and arrived February 17, 2001 at the Bath Iron Work's facility in Bath Maine on the Kennebec River. The drydock & the towing tugboat had stops along the way in Pusan, Korea, and San Juan, Puerto Rico. Profile of the arrival of the drydock in Maine can be viewed at a local Maine news service: http://rockland.k2Bh.com/Community/Story.cfm?StoryID=5267 A number of scientists and others, including at Maine DMR are interested in determining whether the floating drydock transported exotic marine organisms to Maine as well. This includes both its ballast water ( a very substantial amount), the sediment and organisms that settled out of the ballast water and congealed on the sides and bottom of the drydock's ballast tanks, and the fouling organisms that fastened onto the submerged hull portions of the drydock during the journey. See discussion of the role of drydocks in aquatic suisance species transmission at the International Joint Commission's " White Paper On Policies for the Prevention of The Invasion of the Great Lakes by Exotic Organisms" http://www.ijc.org/milwaukee/wrkshps/epballast.html Exotic species such as the asian shore crab can have marked impacts on coastal ecosystems that do not have them, yet have the environment that allows them to colonize. Given the extended length of the BIW floating drydock's journey, thanks to the unexpected typhoon, and other delays, there was a substantial amount of time for bottom fouling organisms to grow on the hull. This is a very common phenomenon. One of the concerns, as we have very few ships from China making a call on a Maine port, is that Chinese crustaceans, such as the Asian shore crab and the Chinese mole crab, could survive the voyage amid the barnacles and other fouling organisms on the drydock hull in sufficient numbers to colonize the midcoast and waters south in the Maine Coastal Current plume. Researchers and bio-invasion specialists suggest that the outer hull and the interior ballast spaces be examined, and samples collected, using either divers or an ROV (remotely operated vehicle). If Asian shore crabs or other nuisance species are detected, then standard aquatic nuisance species removal techniques would be employed, similar to those used to clear floating drydocks and municipal water intake pipes in the Great Lakes area of zebra mussels and other pest organisms, without spreading them into the water column. All in all, not terribly expensive and a good precautionary exercise that will also inform the scientific community on an issue of great interest to them. With environmental security being part of the greater defense mission, this is one worth doing. My question to CPEO-military is How does one go about getting such a defense contactor as General Dynamics/Bath Ironworks to go along with the bio-researchers? People & links relevant to this issue: BIW/General Dynamics *Sue Pierter Director - Communications Bath Iron Works Bath, Maine 04530 Tel: (207) 442-1149 E-mail: susan.pierter@gdbiw.com Sue is agreeable to having this looked into, and has passed the inquiry to her company's science people. MAINE DEPT OF MARINE RESOURCES * John Sowles, Maine DMR marine science officer , West Boothbay Harbor. john.sowles@state.me.us Tel: (207)633-9500 Months ago, Sowles requested that BIW be sure that the drydock followingaccepted International Maritime Organization protocols and dump itsChinese ballast water in mid ocean before taking on a load of "clean" midocean water ballast, prior to arriving in Maine waters. He doesn't know yet whether they did so, but in response to inquiries from NGO and academicpersons, is considering assembling the needed divers and others to adequately sample the fauna and flora attached to the submerged parts of the floating drydock's hull surfaces and ballast spaces. *James Carlton, past head of the International Maritime Organization's aquatic nuisance species study committee and editor of "Biological Invasions" a scientific journal devoted to this topic. Carlton is participating in a research into the phenomenon of floating drydocks as exotic species transport vectors. He will be attending an international meeting on just that issue next week; he considers the BIW floating drydock to be a significant potential transmission vector, and would be glad to help arrange for the examination and sample gathering. Tel 860-572-5359 email jcarlton@williams.edu Website http://www.williamsmystic.org Editor-in-Chief, Biological Invasions (http://www.wkap.nl/journals/biological_invasions) BACK GROUND #Two scientific reports on marine bio-invasions: * A USGS report on the role of marine transport in exotic species introduction: http://nas.er.usgs.gov/publications/sfinvade.htm * A European Union Report: "Testing Monitoring Systems for Risk Assessment of Harmful Introductions by Ships to European Waters" http://members.aol.com/_ht_a/sgollasch/sgollasch AGENCIES AND SCIENTIFIC ORGANIZATIONS National Aquatic Nuisance Species Task Force www.anstaskforce.gov "An intergovernmental organization dedicated to preventing and controlling aquatic nuisance species, and implementing the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990." United States Geological Survey Nonindigenous Aquatic Species (NAS) information service http://nas.er.usgs.gov/ Northeast/Midwest Institute's Biopollution program http://www.nemw.org/biopollute.htm MEDIA COVERAGE OF INVADER SPECIES www.abcnews.go.com/sections/science/DailyNews/invader_japanesecrab001205.html Cheers Ron Huber * Ronald C. Huber Task Force Atlantis 418 Main Street Rockland ME 04841 (207) 594-5717 email coastwatch@acadia.net URL http://www.atlantisforce.org * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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