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OES Fall Seminar - Lisa Drake, SGS Marine Services

 - time/details may vary.
10/20/2022 3:00 PM EST - 4:00 PM EST
Oceanography & Physical Sciences Building - 200
Lisa Drake, SGS Marine Services, will speak on The Long March to Solving Global, Environmental Problems: Ballast Water as a Case Study. Please join us for a reception in OCNPA 404 after the seminar.

The ecological and economic effects of invasive species transported by ships' ballast water are evident worldwide, and they have been well documented. Given the transient and global nature of shipping, however, this environmental problem is particularly challenging to address. The first part of the solution has been to put in place regulations, which dictate very low concentrations of viable (living) organisms that may be discharged. For practicability, organisms are binned by size class, rather than functional group: ≥50 µm (typically zooplankton), ≥10 µm to <50 µm (typically phytoplankton), and <10 µm (represented by three bacteria indicators and pathogens). To meet this stringent standard, most ships will install a ballast water management system (BWMS), which is in effect, a miniaturized shipboard water treatment plant. A new industry has developed over the past 20 years to meet this need. It has required industry investment to design, build, and manufacture BWMS; the development of scientific methods and procedures to measure the efficacy of BWMS; and purpose-built facilities to conduct efficacy tests at shipboard scale. In sum, addressing this environmental issue has required collaboration across geographic and political scales, and, importantly, technical and scientific innovation.

Also offered via Zoom

Please Contact Susan Craig for Zoom link at scraig@odu.edu.

The Ocean & Earth Sciences departmental seminar informs students, staff, faculty and the University community about recent issues. For more than 40 years, the series has fostered connection among current and future professionals. Seminars are held most Thursdays at 3 p.m. during the fall and spring semesters.

For information, email Professor Tal Ezer at tezer@odu.edu.

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