Researchers conducted laboratory experiments to assess the lethal and sublethal impacts of weathered and non-weathered crude oil exposure on red drum larvae. The scientists observed a 70% reduction in cardiac output in oil-exposed larvae, even at low oil concentrations. The reduction in cardiac output was proportional to the occurrence of pericardial edema, suggesting a relationship Read More
The 2010 Deepwater Horizon incident highlighted new challenges and science gaps in our understanding of and ability to respond to deep-water oil releases. Of particular importance is how highly pressurized oil and gas behaves in a deep-sea environment. Karen Malone uses her engineering background to build high-pressure tanks that replicate deep-sea conditions in a laboratory Read More
Twenty students recently visited consortium researchers at Nova Southeastern University to learn about deep-sea organisms. The students heard presentations from graduate students, observed an active toxicity experiment, and helped researchers collect data during an hourly monitoring of oil-exposed crustaceans. Read about the event here.
Mariotti is a geobiologist developing a model to predict the rate at which marshes retreat due to waves and pond formation. His research will help predict future marsh loss and identify strategies to reduce it. Learn more about his background and research here!
The CONCORDE scientists have been hard at work processing the data collected from the cruises on the R/V Point Sur and the R/V Pelican. Early analyses of images collected during consortium research cruises are finding new ways that the physical environment affects the distribution of organisms and marine snow in the water column. Read more Read More
CARTHE has conducted some of the largest ocean current surveys and expeditions to collect important data about material transport in the ocean. This video highlights the tools and techniques that modern researchers use to study ocean currents and develop more accurate ocean circulation models. Watch the video here.
Consortium researchers use stable isotope analysis to determine stable isotope ratios in an organism’s tissues to reconstruct food webs in oiled and non-oiled coastal environments. Specifically, they collect blood and muscle tissue samples from mid-level and higher order consumers, like sharks, to find out if there was any effect of the oil on the consumer Read More
Salt marshes support commercially and culturally important species and are often subject to natural and human-caused stressors. Gaps in our knowledge of salt marsh food webs made management and restoration decisions difficult after the Deepwater Horizon spill. Jessica Johnson helps fill this gap using novel chemical analysis techniques to describe the diets of salt marsh organisms and trace how Read More
A comparison of an oil plume without dispersant (left or a) and one with dispersant at a 1:100 dispersant to oil ratio (right or b). The insets show typical droplet sizes in magnified sections corresponding to the white squares. Image credit David Murphy. Scientists conducted laboratory experiments with a simulated oil plume to Read More
Response decisions during Deepwater Horizon relied on forecasts of where the oil was going and when it would get there. Researchers with the CARTHE consortium have been working to improve the information that goes into making ocean transport forecasts. The group recently completed the last of four field experiments that link the dynamics of deep ocean, shelf, Read More
CRGC experts come from from diverse fields. Working directly with experts outside their own fields of study enhances students’ insights about disaster, recovery, and resilience, while improving their problem solving skills and passion for their work. The two-page pamphlet describes the consortium’s efforts to provide graduate and undergraduate students with hands-on opportunities to work with Read More
Recent research into Deepwater Horizon’s impacts on salt marsh fiddler crabs has been adapted for the journal’s Environmental Science Journal for Teens publication. The research team included researchers from two Louisiana State University-led projects (1, 2) and the Florida Institute of Oceanography. Read the article. Additional materials can be accessed here..
The ACER fact sheet series focuses on the emerging research from our seven research groups. This series will include a total of 15 fact sheets over the course of two years (2016-2017) with each individual research group receiving two fact sheets covering their research and publications. The Nitrogen Cycling research group investigates the processes that Read More
Researchers combined laboratory experiments and molecular simulations to examine how two Corexit surfactants – DOSS (dioctyl sulfosuccinate) and Span 80 – individually affect oil aerosolization. Using a bubble column reactor, the scientists found that more oil hydrocarbons (alkanes) were ejected when Span 80 was present (by more than an order of magnitude for heavy hydrocarbons) Read More
Researchers analyzed bacterial communities exposed to Deepwater Horizon oil and identified taxa and genes associated with oil degradation and assimilation. The scientists found that Marinobacter and Alcanivorax dominated alkane-degrading communities, while Alteromonadales, Oceanospirillales, and Rhodospirillales dominated polycyclic aromatic hydrocarbon (PAH)-degrading communities. Oil-degrading bacteria exhibited genes associated with motility and nutrient uptake needed for nutrient-limiting conditions Read More