Search Results for “Corexit” – Page 4 – Gulf of Mexico Research Initiative

Study Explores Complex Dispersant Effects on Marine Oil Snow Formation

Complete News, GOMRI Generated Stories, Science HighlightsBy Leslie Smith February 2, 2018

Researchers simulated the sinking of marine particle aggregates in oil-dispersant mixtures to assess how Corexit chemical dispersant affects specific biological processes involving marine oil snow formation. The team found that Corexit could significantly enhance or inhibit marine oil snow formation depending on application timing and location and interactions with other water column compounds, making its influence difficult to predict.

Grad Student Shi Uses Chemical Fingerprinting to Investigate Oil in the Water Column

Complete News, GOMRI Generated Stories, GoMRI ScholarsBy Leslie Smith November 7, 2017

Crude oil contains tens of thousands of hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs) that create unique chemical fingerprints for different types of oil. Dawei “David” Shi uses geochemical analysis techniques in mesocosm studies to track these fingerprints.

GoMRI Newsletter: Summer Issue 2017

By Leslie Smith September 26, 2017

GoMRI Newsletter: Summer Issue 2017 Download Full Issue (PDF) Above the Fold – “CARTHE Concludes Year One of Bay Drift Citizen Science Project” – “RFP-V Researcher Dr. Sunshine Van Bael Hosts Workshops for Elementary and Middle School- Aged Kids” – Frequently Asked Questions: Thematic Workshops – Note from the Research Board Chair – Education Spotlight…

Study Develops Method to Quantify DOSS in Gulf of Mexico Sediments

Complete News, GOMRI Generated Stories, Science HighlightsBy Leslie Smith July 11, 2017

Scientists developed and validated a high-resolution mass spectrometry method to fill data gaps in existing methods that detect the surfactant DOSS, a significant Corexit component, in sediments near the Deepwater Horizon spill site.

Grad Student Morales-McDevitt Explores How Nutrients Influence Marine Snow Formation

Complete News, GOMRI Generated Stories, GoMRI ScholarsBy Leslie Smith June 16, 2017

Marine oil snow is the largest commuter of carbon to the seafloor and occurs when oil and marine particles aggregate and sink through the water column. Previous studies show that oil and dispersant significantly increased marine microorganisms’ production of exopolymeric substances (EPS), an extremely sticky goo that holds marine snow together. Maya Morales-McDevitt conducts mesocosm experiments investigating how certain naturally occurring nutrients influence EPS production and oil degradation.

GoMRI Newsletter: Spring Issue 2017

By Leslie Smith June 8, 2017

GoMRI Newsletter: Spring Issue 2017 Download Full Issue (PDF) Above the Fold – “GoMRI Attends 2017 International Oil Spill Conference” – “C-IMAGE Launches Beneath the Horizon Interactive Website” – “High School Senior Presents Research at 2017 Gulf of Mexico Oil Spill and Ecosystem Science Conference” – Frequently Asked Questions – Note from the Research Board…

Study Finds UVB Radiation Increases Oil Toxicity in Marine Copepod Larvae

Complete News, GOMRI Generated Stories, Science HighlightsBy Leslie Smith January 12, 2017

Scientists conducted laboratory exposure experiments to assess the effects of dispersed crude oil, Corexit 9500A dispersant, and natural ultraviolet B (UVB) radiation on early larval stages of planktonic copepods (“nauplii”).

Texas A&M Team Examines Role Of Dispersants In 2010 Gulf Oil Spill

Complete News, GoMRI in the NewsBy Leslie Smith November 21, 2016

Following the 2010 Deepwater Horizon oil spill in the Gulf of Mexico, dispersants were used to keep the oil from coming ashore by dispersing and diluting it.

Study Finds Natural Sunlight Affects Oil-Degrading Bacteria Composition and Dynamics

Complete News, GOMRI Generated Stories, Science HighlightsBy Leslie Smith September 27, 2016

Scientists from the University of Texas Marine Science Institute demonstrated how natural sunlight affects Gulf of Mexico microbial communities in the presence of Corexit (dispersant) and crude oil. They observed that sunlight significantly reduced the diversity of bacterial communities in the presence of oil, Corexit, or both.