Department of Estuarine & Ocean Sciences Seminar
When: Wednesday,
November 4, 2015
12:30 PM
-
1:30 PM
Where: > See description for location
Description: The School for Marine Science and Technology
Department of Estuarine and Ocean Sciences
Seminar Announcement
Tracing the fate of a very unnatural source of organic nitrogen to marine ecosystems: explosive findings
Prof. Craig Tobias
Department of Marine Sciences
University of Connecticut
Wednesday, November 4, 2015
12:30 pm - 1:30 pm
SMAST I, Room 204
706 S. Rodney French Blvd., New Bedford, MA
Abstract:
Large quantities of surplus and damaged munitions were dumped into the ocean following WWI and WWII and the Department of Defense has documented 74 domestic and foreign dump sites. Within the contiguous 48 United States, there are approximately 41 active DOD installations located within the coastal zone. The number of active bases, combined with decommissioned facilities with historical explosives contamination, and offshore munitions dump sites indicate the probable likelihood that multiple marine habitats at multiple locations receive exposure munitions constituents. Although munitions compounds have been typically viewed from a contaminant and toxicology perspective, they are also extremely nitrogen (N) rich and represent a potential source of N to N-limited marine systems. We have been using stable isotope labelled munitions compounds to assess the ecosystem fate of two common explosives compounds; TNT and RDX. The isotope label permits the simultaneous quantification of pathways that constitute uptake and storage in macrobiota vs those that lead to complete mineralization of the compound through microbial breakdown pathways
Note: Seminar will be simulcast to SMAST II, Room 325.
You can view the seminar live by clicking
here: "live event."Please note: the earliest you will be able to log in is
15 minutes before the regularly scheduled time.
To view a video of an SMAST seminar (post-October 1st), go to http://www.umassd.edu/smast/newsandevents/seminarseries/ and click on a highlighted title.
For additional information, please contact Sue Silva at s1silva@umassd.edu.
Department of Estuarine and Ocean Sciences
Seminar Announcement
Tracing the fate of a very unnatural source of organic nitrogen to marine ecosystems: explosive findings
Prof. Craig Tobias
Department of Marine Sciences
University of Connecticut
Wednesday, November 4, 2015
12:30 pm - 1:30 pm
SMAST I, Room 204
706 S. Rodney French Blvd., New Bedford, MA
Abstract:
Large quantities of surplus and damaged munitions were dumped into the ocean following WWI and WWII and the Department of Defense has documented 74 domestic and foreign dump sites. Within the contiguous 48 United States, there are approximately 41 active DOD installations located within the coastal zone. The number of active bases, combined with decommissioned facilities with historical explosives contamination, and offshore munitions dump sites indicate the probable likelihood that multiple marine habitats at multiple locations receive exposure munitions constituents. Although munitions compounds have been typically viewed from a contaminant and toxicology perspective, they are also extremely nitrogen (N) rich and represent a potential source of N to N-limited marine systems. We have been using stable isotope labelled munitions compounds to assess the ecosystem fate of two common explosives compounds; TNT and RDX. The isotope label permits the simultaneous quantification of pathways that constitute uptake and storage in macrobiota vs those that lead to complete mineralization of the compound through microbial breakdown pathways
Note: Seminar will be simulcast to SMAST II, Room 325.
You can view the seminar live by clicking
here: "live event."Please note: the earliest you will be able to log in is
15 minutes before the regularly scheduled time.
To view a video of an SMAST seminar (post-October 1st), go to http://www.umassd.edu/smast/newsandevents/seminarseries/ and click on a highlighted title.
For additional information, please contact Sue Silva at s1silva@umassd.edu.
Contact: > See Description for contact information
Topical Areas: University Community