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The colonial ascidian Didemnum sp. A: Current distribution, basic biology and potential threat to marine communities of the northeast and west coasts of North America

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dc.contributor.author Bullard, Stephan G.
dc.contributor.author Lambert, Gretchen
dc.contributor.author Carman, Mary R.
dc.contributor.author Byrnes, J.
dc.contributor.author Whitlatch, R. B.
dc.contributor.author Ruiz, G.
dc.contributor.author Miller, R. J.
dc.contributor.author Harris, L.
dc.contributor.author Valentine, Page C.
dc.contributor.author Collie, Jeremy S.
dc.contributor.author Pederson, J.
dc.contributor.author McNaught, D. C.
dc.contributor.author Cohen, A. N.
dc.contributor.author Asch, R. G.
dc.contributor.author Dijkstra, Jennifer A.
dc.contributor.author Heinonen, K.
dc.date.accessioned 2007-05-11T19:29:28Z
dc.date.available 2007-05-11T19:29:28Z
dc.date.issued 2006-10-09
dc.identifier.uri http://hdl.handle.net/1912/1634
dc.description Author Posting. © The Author(s), 2006. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Journal of Experimental Marine Biology and Ecology 342 (2007): 99-108, doi:10.1016/j.jembe.2006.10.020. en
dc.description.abstract Didemnum sp. A is a colonial ascidian with rapidly expanding populations on the east and west coasts of North America. The origin of Didemum sp. A is unknown. Populations were first observed on the northeast coast of the U.S. in the late 1980s and on the west coast during the 1990s. It is currently undergoing a massive population explosion and is now a dominant member of many subtidal communities on both coasts. To determine Didemnum sp. A’s current distribution, we conducted surveys from Maine to Virginia on the east coast and from British Columbia to southern California on the west coast of the U.S. between 1998 and 2005. In nearshore locations Didemnum sp. A currently ranges from Eastport, Maine to Shinnecock Bay, New York on the east coast. On the west coast it has been recorded from Humboldt Bay to Port San Luis in California, several sites in Puget Sound, Washington, including a heavily fouled mussel culture facility, and several sites in southwestern British Columbia on and adjacent to oyster and mussel farms. The species also occurs at deeper subtidal sites (up to 81 m) off New England, including Georges, Stellwagen and Tillies Banks. On Georges Bank numerous sites within a 147 km2 area are 50-90% covered by Didemnum sp. A; large colonies cement the pebble gravel into nearly solid mats that may smother infaunal organisms. These observations suggest that Didemnum sp. A has the potential to alter marine communities and affect economically important activities such as fishing and aquaculture. en
dc.description.sponsorship Funding for this project was provided by EPA (STAR) grant GZ1910464 to R.B. Whitlatch, NSF-DGE 0114432 to J. Byrnes, NSF-OCE 0117839 to R. Etter and R.J. Miller, MIT Sea Grant NA86RG0074 and USEPA Grant GX83055701-0 to J. Pederson. RI Sea Grant NA07R90363 to J.S. Collie. Funding for A.N. Cohen and G. Lambert was provided by Mass. Sea Grant, U.S. EPA, Smithsonian Envl. Research Center Invasions Lab, Natl. Geographic Soc., San Francisco Bay-Delta Science Consortium and CALFED Science Program, Calif. Coastal Conservancy and the Rose Foundation. Additional funding and support was provided by the Stellwagen Bank National Marine Sanctuary. en
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.relation.uri http://dx.doi.org/10.1016/j.jembe.2006.10.020
dc.subject Ascidian en
dc.subject Didemnum en
dc.subject Distribution en
dc.subject Fouling en
dc.subject Georges Bank en
dc.subject Invasive species en
dc.subject Nonindigenous en
dc.subject Stellwagen Bank en
dc.subject Tillies Bank en
dc.subject Tunicate en
dc.title The colonial ascidian Didemnum sp. A: Current distribution, basic biology and potential threat to marine communities of the northeast and west coasts of North America en
dc.type Preprint en


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