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Gulf of Mexico Research Initiative
Investigating the effect of oil spills on the environment and public health
Gulf of Mexico Research Initiative
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University of North Texas Associate Professor of Biology Dane Crossley (white shirt) and his graduate student Derek Nelson (a GoMRI Scholar) review cardiovascular data of oil-exposed early-life-stage fish. Credit Daniel DiNicola RECOVER consortium.

Study Finds Oil Exposure Reduces Cardiorespiratory Function in Cobia Fish

July 16, 2019

Researchers conducted swim tests on Gulf of Mexico Cobia fish to investigate potential impacts from oil exposure.

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Study Improves Drifter-Based Estimates of Near-Surface Ocean Currents

July 10, 2019

Scientists developed a new approach to improve near-surface (15 meters depth) ocean circulation estimations derived from drogued and undrogued drifters (drogues extend below the surface, providing stability) used in the NOAA Global Drifter Program.

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A male fiddler crab (Uca panacea) sits inside an experimental mesocosm that investigated crude oil impacts. Credit: M.E. Franco, University of Louisiana, Lafayette.

Study Finds Oil Impacts on Fiddler Crabs May Also Affect Broader Marsh Health

July 2, 2019

Scientists conducted mesocosm experiments to explore how crude oil affects marsh-dwelling fiddler crabs, classified as ecosystem engineers or bioturbators. The researchers tested impacts of various oil concentrations to mimic light (L) to heavy (H) oiling scenarios, with fiddler crabs experiencing more acute impacts at higher oil concentrations and less at lower concentrations.

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This study observed phytoplankton changes in response to oil spill exposure. These phytoplankton photos were taken under a microscope in control (left, no oil) and DCEWAF (right, dispersed oil) tanks. In control tanks, many kinds of phytoplankton were observed such as Stephanopyxis (top left) and Skeletonema (bottom left). In the DCEWAF tanks, there were fewer phytoplankton cells and more heterotrophic microbes (not photosynthetic). Photo credit: Breanna Couffer.

Study Finds Dispersed Oil, But Not Oil Alone, Negatively Affects Phytoplankton

June 25, 2019

Scientists conducted mesocosm experiments to examine how oil and chemically-dispersed oil affect Gulf of Mexico phytoplankton. Exposure to oil alone did not impair phytoplankton growth or their photosynthesis ability, nor did it significantly change the community’s diversity.

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Eckerd College's Rebekka Larson retrieves sediment collected November 2010 using an Ocean Instruments MC-800 aboard the R/V Weatherbird II. The sediment cores are used to investigate sedimentary impacts of the 2010 Deepwater Horizon incident. Photo credit: Patrick Schwing.

Study Describes Six-Year Evolution of Gulf Sediments Following Deepwater Horizon

June 18, 2019

Scientists adapted high-resolution sampling and analyses methods to assess Gulf of Mexico sediment core samples collected from 2010-2016 and identify sedimentation changes that followed Deepwater Horizon.

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Study Compares 2D and 3D Model Simulations of Oil Plume Behavior

June 4, 2019

Scientists assessed an economical 2D model simulation of deep-ocean oil plume dynamics against 3D model results using conditions similar to Deepwater Horizon to better understand point-source buoyant convection, which affects the oil’s spreading rate and environmental impact.

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Study Gives Snapshot of Key Microbial Oil Biodegradation Mechanisms

May 29, 2019

Researchers compiled a two-page summary with detailed graphics explaining the complex mechanisms and processes involved in microbial hydrocarbon bioremediation.

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Dr. Gopal Bera, with the Geochemical and Environmental Research Group at Texas A&M University, displays a silicone tube filled with Macondo oil. This oil-filled tube is one of the passive dosing methods analyzed in this study for improved oil toxicity testing. Photo Credit: Kusumica Mitra

Study Finds Passive Dosing Techniques May Simplify Oil Toxicity Tests

May 21, 2019

Scientists evaluated two oil risk assessment protocols that use passive dosing to create oil and water accommodated fractions (WAFs) for laboratory tests as potential alternatives to the traditional oil dosing method that CROSERF (multi-agency/organization oil spill research group) recommends.

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Study co-author Narendra Dewangan, a graduate student in Chemical Engineering at the University of Houston, examines marine bacteria adhered to oil droplets using a confocal microscope. Credit: Diego Soetrisno (member of Conrad lab)

Study Explores How Five Surfactants Affect Oil Biodegradation

May 14, 2019

Scientists compared how different surfactants affect bacterial adhesion to oil droplets (20−60 μm), which is necessary for biodegradation.

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Study Demonstrates How Natural Clay Particles Enhance Oil Dispersion and Biodegradation

May 7, 2019

Scientists conducted laboratory experiments using an abundant natural clay material, kaolinite, modified with carbon derived from chitosan as an environmentally friendly alternative to chemical dispersants and visualized resulting phenomena at nanoscale detail.

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