Project Page

Aggregation and Degradation of Dispersants and Oil by Microbial Exopolymers 2 (ADDOMEx-2): Towards a synthesis of process and pathways of marine oil snow formation

Implementing Organization

Mount Allison University

Overview

DWH Project Funding

$4,736,265

Known Leveraged Funding

$0

Funding Organization

Gulf of Mexico Research Initiative (GoMRI)

Funding Program

Gulf of Mexico Research Initiative (GoMRI) Grant Program

Details

Project Category

Science

Project Actions

Chemical Aspects Research

Targeted Resources

Microbial Communities

Project Description

The work proposed here will build on the previous findings of ADDOMEx. Specifically, research during ADDOMEx identified many of the bacteria and phytoplankton responsible for the copious production of transparent exopolymeric particles (TEP), exopolymeric substances (EPS), marine snow and marine oil snow (MOS) in the presence and absence of oil (as a water accommodated fraction; WAF), the dispersant Corexit, and Corexit-dispersed oil (as a chemically enhanced water accommodated fraction, CEWAF, and as a diluted form, herein called DCEWAF). The factors that influence or retard the subsurface scavenging of oil into MOS were determined and ongoing research is beginning to pinpoint the processes that promote decomposition of the oil post MOS formation.The next step is thus to integrate ADDOMEx derived insights into a comprehensive conceptual model framework. Key experiments will generate measurements needed to improve numerical modeling (in conjunction with FOMOSA and others) which will enhance prediction capabilities in order to guide the decision process of first responders. The primary experimental goal of ADDOMEx-2 is to perform a series of “wrap-up” experiments intended to fill current knowledge gaps.

Contact

Antonietta Quigg
None
quigga@tamug.edu
Project Website
Project Partners

None

Affiliated Institutions

None

+ View Raw Data