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Deepwater Horizon Oil Spill and Restoration (DWH)

NOAA Institutional Repository

The NOAA Deepwater Horizon (DWH) Program is a NOAA-wide effort focused on restoring injuries to natural resources and services from the 2010 Deepwater Horizon oil spill in the Gulf of America (formerly Gulf of Mexico). As the lead science agency for coastal oil spills, NOAA was on the scene from the earliest moment of the DWH oil spill crisis. In the six years following, NOAA assessed the damages, quantified the injury, and determined the types and cost of restoration needed. This work resulted in the 2016 Deepwater Horizon Programmatic Damage Assessment and Restoration Plan and Programmatic Environmental Impact Statement (PDARP), which detailed the natural resource injuries from the oil spill and selected a comprehensive, integrated ecosystem approach to best restore those resources at an ecosystem level. In addition to serving as a member of the Deepwater Horizon Natural Resource Damage Assessment (NRDA) Trustee Council implementing restoration work guided by the PDARP, NOAA also supports the Department of Commerce’s role as a member of the Gulf Coast Ecosystem Restoration Council, which manages the DWH restoration efforts conducted under the RESTORE Act. To support the extensive restoration efforts, NOAA has been working alongside our state, federal, academic, non-profit partners, and the public to implement the best approaches to restoring the Gulf of America resources and habitats. NOAA is particularly focused on identifying and conducting work to advance science needs to either fill data gaps needed to better target restoration or to advance our ability to monitor and evaluate restoration outcomes for NOAA trust resources, including assessing deep benthic and mesophotic communities on the seafloor and monitoring the effects of restoration activities on injured marine mammals, sea turtles, and Gulf fish and invertebrate species and their coastal and marine habitats.

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Showing 81 - 100 of 303 results
  • Survival density and abundance of common bottlenose dolphins in Barataria Bay USA following the Deepwater Horizon oil spill
    Survival, density, and abundance of common bottlenose dolphins in Barataria Bay (USA) following the Deepwater Horizon oil spill
    McDonald, TL ;
    Hornsby, FE
    2017 | Endangered Species Research, 33, 193-209.
    To assess potential impacts of the Deepwater Horizon oil spill in April 2010, we conducted boat-based photo-identification surveys for common bottlenose dolphins Tursiops truncatus in Barataria Bay, Louisiana, USA (similar to 230 km(2), located 167 km WNW of the spill center). Crews logged 838 h of survey effort along pre-defined routes on 10 occas ...
  • Seagrass response following exposure to Deepwater Horizon oil in the Chandeleur Islands Louisiana USA
    Seagrass response following exposure to Deepwater Horizon oil in the Chandeleur Islands, Louisiana (USA)
    Kenworthy, WJ ;
    Cosentino-Manning, N
    2017 | Marine Ecology Progress Series, 576, 145-161.
    The Chandeleur Islands, Louisiana (USA), were among the first coastal locations in the northern Gulf of Mexico (GoM) threatened by exposure to Deepwater Horizon oil. Shoreline oiling data and surface oil trajectories (aerial and satellite imagery) showed oil passing through seagrass beds on the shallow back barrier shelf west of the islands repeate ...
  • Temporal patterns of Deepwater Horizon impacts on the benthic infauna of the northern Gulf of Mexico continental slope
    Temporal patterns of Deepwater Horizon impacts on the benthic infauna of the northern Gulf of Mexico continental slope
    Reuscher, Michael G. ;
    Baguley, Jeffrey G.
    2017 | PLoS ONE 12(6): e0179923
    The Deepwater Horizon oil spill occurred in spring and summer 2010 in the northern Gulf of Mexico. Research cruises in 2010 (approximately 2–3 months after the well had been capped), 2011, and 2014 were conducted to determine the initial and subsequent effects of the oil spill on deep-sea soft-bottom infauna. A total of 34 stations were sampled fro ...
  • Adrenal Gland and Lung Lesions in Gulf of Mexico Common Bottlenose Dolphins Tursiops truncatus Found Dead following the Deepwater Horizon Oil Spill
    Adrenal Gland and Lung Lesions in Gulf of Mexico Common Bottlenose Dolphins (Tursiops truncatus) Found Dead following the Deepwater Horizon Oil Spill
    Venn-Watson, Stephanie ;
    Colegrove, Kathleen M.
    2015 | Plos One, 10(5), e0126538.
    A northern Gulf of Mexico (GoM) cetacean unusual mortality event (UME) involving primarily bottlenose dolphins (Tursiops truncatus) in Louisiana, Mississippi, and Alabama began in February 2010 and continued into 2014. Overlapping in time and space with this UME was the Deepwater Horizon (DWH) oil spill, which was proposed as a contributing cause o ...
  • Assessing Seasonality and Density From Passive Acoustic Monitoring of Signals Presumed to be From Pygmy and Dwarf Sperm Whales in the Gulf of Mexico
    Assessing Seasonality and Density From Passive Acoustic Monitoring of Signals Presumed to be From Pygmy and Dwarf Sperm Whales in the Gulf of Mexico
    Hildebrand, John A. ;
    Frasier, Kaitlin E.
    2019 | Frontiers in Marine Science, 6(66)
    Pygmy sperm whales (Kogia breviceps) and dwarf sperm whales (Kogia sima) are deep diving cetaceans that commonly strand along the coast of the southeast US, but that are difficult to study visually at sea because of their elusive behavior. Conventional visual surveys are thought to significantly underestimate the presence of Kogia and they have pro ...
  • Metaanalysis of Nekton Recovery Following Marsh Restoration in the Northern Gulf of Mexico
    Meta-analysis of Nekton Recovery Following Marsh Restoration in the Northern Gulf of Mexico
    Hollweg, Terill A. ;
    Christman, Mary C.
    2020 | Estuaries and Coasts 43: 1746-1763
    To investigate regional patterns in marsh recovery following restoration, a meta-analysis of nekton densities at restored and reference marshes in the northern Gulf of Mexico (GOM) was conducted. Results were variable at both restored and reference sites, but general trends with respect to the age of the restored site were observed. Pooled together ...
  • Physiological Effects of Low Salinity Exposure on Bottlenose Dolphins Tursiops truncatus
    Physiological Effects of Low Salinity Exposure on Bottlenose Dolphins (Tursiops truncatus)
    McClain, Abby M. ;
    Daniels, Risa
    2020 | J. Zool. Bot. Gard. 2020, 1(1), 61-75
    Bottlenose dolphins (Tursiops truncatus) have a worldwide distribution in temperate and tropical waters and often inhabit estuarine environments, indicating their ability to maintain homeostasis in low salinity for limited periods of time. Epidermal and biochemical changes associated with low salinity exposure have been documented in stranded bottl ...
    Supporting Files
  • Vertical Distribution Patterns of Cephalopods in the Northern Gulf of Mexico
    Vertical Distribution Patterns of Cephalopods in the Northern Gulf of Mexico
    Judkins, Heather ;
    Vecchione, Michael
    2020 | Frontiers in Marine Science,7(47)
    Cephalopods are important in midwater ecosystems of the Gulf of Mexico (GOM) as both predator and prey. Vertical distribution and migration patterns (both diel and ontogenic) are not known for the majority of deep-water cephalopods. These varying patterns are of interest as they have the potential to contribute to the movement of large amounts of n ...
  • Temporal Variability of Polycyclic Aromatic Hydrocarbons in DeepSea Cephalopods of the Northern Gulf of Mexico
    Temporal Variability of Polycyclic Aromatic Hydrocarbons in Deep-Sea Cephalopods of the Northern Gulf of Mexico
    Romero, Isabel C. ;
    Judkins, Heather
    2020 | Frontiers in Marine Science, 7(54)
    As part of the effort to understand the effects of the Deepwater Horizon Oil Spill (DWHOS), we analyzed tissue from five species of midwater oceanic cephalopods in the northern Gulf of Mexico (GoM) during three time periods, including one period sampled fortuitously just before the spill (2010), and two periods sampled after the spill (2011 and 201 ...
  • Using salinity to identify common bottlenose dolphin habitat in Barataria Bay Louisiana USA
    Using salinity to identify common bottlenose dolphin habitat in Barataria Bay, Louisiana, USA
    Hornsby, FE ;
    McDonald, TL
    2017 | Endangered Species Research, 33, 181-192.
    Following the Deepwater Horizon (DWH) oil spill, numerous studies were conducted to determine impacts on common bottlenose dolphins Tursiops truncatus. Common bottlenose dolphins are found in estuarine environments of the northern Gulf of Mexico which vary in salinity, depending on location (e.g. distance to freshwater source), season, and ocean ti ...
  • A Multidisciplinary Approach to Investigate DeepPelagic Ecosystem Dynamics in the Gulf of Mexico Following Deepwater Horizon
    A Multidisciplinary Approach to Investigate Deep-Pelagic Ecosystem Dynamics in the Gulf of Mexico Following Deepwater Horizon
    Cook, April B. ;
    Bernard, Andrea M.
    2020 | Frontiers in Marine Science, 7(1122)
    The pelagic Gulf of Mexico (GoM) is a complex system of dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration and lateral advection. Humans also heavily utilize this system, including its deep-sea components, for resource extraction, shipping, tou ...
  • Quantifying injury to common bottlenose dolphins from the Deepwater Horizon oil spill using an age sex and classstructured population model
    Quantifying injury to common bottlenose dolphins from the Deepwater Horizon oil spill using an age-, sex- and class-structured population model
    Schwacke, LH ;
    Thomas, L
    2017 | Endangered Species Research, 33(265-279.
    Field studies documented increased mortality, adverse health effects, and reproductive failure in common bottlenose dolphins Tursiops truncatus following the Deepwater Horizon (DWH) oil spill. In order to determine the appropriate type and amount of restoration needed to compensate for losses, the overall extent of injuries to dolphins had to be qu ...
  • Reproductive outcome and survival of common bottlenose dolphins sampled in Barataria Bay Louisiana USA following the Deepwater Horizon oil spill
    Reproductive outcome and survival of common bottlenose dolphins sampled in Barataria Bay, Louisiana, USA, following the Deepwater Horizon oil spill
    Lane, Suzanne M. ;
    Smith, Cynthia R.
    2015 | Proceedings of the Royal Society B-Biological Sciences, 282(1818), 20151944.
    Common bottlenose dolphins (Tursiops truncatus) inhabit bays, sounds and estuaries across the Gulf of Mexico. Following the Deepwater Horizon oil spill, studies were initiated to assess potential effects on these ecologically important apex predators. A previous study reported disease conditions, including lung disease and impaired stress response, ...
  • Where were they from Modelling the source stock of dolphins stranded after the Deepwater Horizon oil spill using genetic and stable isotope data
    Where were they from? Modelling the source stock of dolphins stranded after the Deepwater Horizon oil spill using genetic and stable isotope data
    Thomas, L ;
    Booth, CG
    2017 | Endangered Species Research, 33, 253-264.
    Understanding the source stock of common bottlenose dolphins Tursiops truncatus that stranded in the northern Gulf of Mexico subsequent to the Deepwater Horizon oil spill was essential to accurately quantify injury and apportion individuals to the appropriate stock. The aim of this study, part of the Natural Resource Damage Assessment (NRDA), was t ...
  • Quantifying the Benefits of Estuarine Habitat Restoration in the Gulf of Mexico an Introduction to the Theme Section
    Quantifying the Benefits of Estuarine Habitat Restoration in the Gulf of Mexico: an Introduction to the Theme Section
    Carle, Melissa Vernon ;
    Benson, Kristopher G.
    2020 | Estuaries and Coasts, 43(7), 1680-1691
    This collection of papers provides insights into methods and data currently available to quantify the benefits associated with estuarine habitat restoration projects in the northern Gulf of Mexico, USA, with potential applicability to other coastal systems. Extensive habitat restoration is expected to occur in the northern Gulf of Mexico region ove ...
  • Slow recovery of Barataria Bay dolphin health following the Deepwater Horizon oil spill 20132014 with evidence of persistent lung disease and impaired stress response
    Slow recovery of Barataria Bay dolphin health following the Deepwater Horizon oil spill (2013-2014), with evidence of persistent lung disease and impaired stress response
    Smith, CR ;
    Rowles, TK
    2017 | Endangered Species Research, 33, 127-142.
    The 2010 Deepwater Horizon (DWH) disaster resulted in large-scale oil contamination of the northern Gulf of Mexico. As part of the Natural Resource Damage Assessment designed to investigate the potential impacts of the DWH oil spill, comprehensive health assessments were conducted on bottlenose dolphins Tursiops truncatus living in oiled bays (Bara ...
  • Assigning stranded bottlenose dolphins to source stocks using stable isotope ratios following the Deepwater Horizon oil spill
    Assigning stranded bottlenose dolphins to source stocks using stable isotope ratios following the Deepwater Horizon oil spill
    Hohn, AA ;
    Thomas, L
    2017 | Endangered Species Research, 33, 235-252.
    The potential for stranded dolphins to serve as a tool for monitoring free-ranging populations would be enhanced if their stocks of origin were known. We used stable isotopes of carbon, nitrogen, and sulfur from skin to assign stranded bottlenose dolphins Tursiops truncatus to different habitats, as a proxy for stocks (demographically independent p ...
  • An Expert Elicitation of the Effects of Low Salinity Water Exposure on Bottlenose Dolphins
    An Expert Elicitation of the Effects of Low Salinity Water Exposure on Bottlenose Dolphins
    Booth, Cormac ;
    Thomas, Len
    2021 | Oceans 2021, 2(1), 179-192
    There is increasing concern over anthropogenically driven changes in our oceans and seas, from a variety of stressors. Such stressors include the increased risk of storms and precipitation, offshore industries and increased coastal development which can affect the marine environment. For some coastal cetacean species, there is an increased exposure ...
    Supporting Files
  • Five years of Deepwater Horizon oil spill effects on marsh periwinkles Littoraria irrorata
    Five years of Deepwater Horizon oil spill effects on marsh periwinkles Littoraria irrorata
    Zengel, S ;
    Weaver, J
    2017 | Mar Ecol Prog Ser 576:135-144
    The Deepwater Horizon spill (2010) was the largest marine oil spill in US waters to date and one of the largest worldwide. To examine effects of the oil spill on an important salt marsh species over time, we conducted a meta-analysis on marsh periwinkles Littoraria irrorata using published and unpublished sources spanning more than 5 yr (2010-2015) ...
  • Editorial Deep Pelagic Ecosystem Dynamics in a Highly Impacted Water Column The Gulf of Mexico After Deepwater Horizon
    Editorial: Deep Pelagic Ecosystem Dynamics in a Highly Impacted Water Column: The Gulf of Mexico After Deepwater Horizon
    Sutton, Tracey T. ;
    Boswell, Kevin M.
    2021 | Frontiers in Marine Science, 8(187)
    The intermediate-sized midwater fauna (fishes, shrimps, and cephalopods; “micronekton” collectively) are dominant components of the pelagic ocean, which is by far the largest ecosystem type on Earth by several metrics (volume, organismal numbers, biomass, and productivity). Deep-pelagic micronekton, those animals residing in the water column below ...
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