Abstract:
:A prominent vector of aquatic invasive species to coastal regions is the discharge of water, sediments, and biofilm from ships' ballast-water tanks. During eight years of studying ships arriving to the lower Chesapeake Bay, we developed an understanding of the mechanisms by which invasive microorganisms might arrive to the region via ships. Within a given ship, habitats included ballast water, unpumpable water and sediment (collectively known as residuals), and biofilms formed on internal surfaces of ballast-water tanks. We sampled 69 vessels arriving from foreign and domestic ports, largely from Western Europe, the Mediterranean region, and the US East and Gulf coasts. All habitats contained bacteria and viruses. By extrapolating the measured concentration of a microbial metric to the estimated volume of ballast water, biofilm, or residual sediment and water within an average vessel, we calculated the potential total number of microorganisms contained by each habitat, thus creating a hierarchy of risk of delivery. The estimated concentration of microorganisms was greatest in ballast water>sediment and water residuals>biofilms. From these results, it is clear microorganisms may be transported within ships in a variety of ways. Using temperature tolerance as a measure of survivability and the temperature difference between ballast-water samples and the water into which the ballast water was discharged, we estimated 56% of microorganisms could survive in the lower Bay. Extrapolated delivery and survival of microorganisms to the Port of Hampton Roads in lower Chesapeake Bay shows on the order of 10(20) microorganisms (6.8 x 10(19) viruses and 3.9 x 10(18) bacteria cells) are discharged annually to the region.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Drake LA,Doblin MA,Dobbs FCdoi
10.1016/j.marpolbul.2006.11.007subject
Has Abstractpub_date
2007-01-01 00:00:00pages
333-41issue
7-9eissn
0025-326Xissn
1879-3363pii
S0025-326X(06)00494-2journal_volume
55pub_type
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journal_title:Marine pollution bulletin
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pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2012.09.007
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 历史文章,杂志文章
doi:10.1016/j.marpolbul.2011.05.009
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2018.10.046
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2017.04.045
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2016.12.066
更新日期:2017-03-15 00:00:00
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pub_type: 杂志文章
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更新日期:2019-11-01 00:00:00
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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更新日期:2014-11-15 00:00:00
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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