Amanda Demopoulos, Ph.D.
I lead multidisciplinary investigations into coastal and deep-sea benthic communities funded by USGS-EMA and partners, including BOEM and NOAA, that pull together scientists and experts from across USGS, as well as NOAA, BOEM, and many academic institutions. Deep-sea investigations are complex and logistically challenging and require an interdisciplinary approach to disentangle what makes them tick.
Science and Products
Filter Total Items: 18
Environmental Impacts following the 1970 Testing of Seabed Mining Equipment on the Blake Plateau- Quantification of Benthic Communities Across Disturbance Gradients
USGS researchers will characterize the ecology of benthic communities associated with deep-sea environments, including hardground features and adjacent soft sediments, and will build upon previous work conducted in areas off the U.S. east coast under consideration for oil and gas leases.
Characterization of Benthic Habitats on the Pacific Margin: Assessing the Connectivity of Hard Substrates, Seeps and Canyon Communities
USGS researchers will characterize the ecology of benthic invertebrates associated with deep-sea environments and broader food-web dynamics within hardground features, seeps, and adjacent soft sediments. This project will provide important information regarding deepwater benthic habitats, such as chemosynthetic communities and deep-sea corals, that could be affected by offshore wind development.
Mesophotic and Deep Benthic Communities: Habitat Assessment and Evaluation
Through a collaborative effort with other federal agencies and academic and research institutions, USGS is working to fill data gaps, determine baseline conditions, and characterize key community conditions at mesophotic and deep benthic sites impacted by the Deepwater Horizon oil spill.
Mesophotic and Deep Benthic Communities: Coral Propagation Technique (CPT) Development Project
Through a collaborative effort with other federal agencies and academic and research institutions, the USGS is working to inform and enhance the protection and management of coral communities in mesophotic and deep benthic areas of the Gulf of Mexico.
Ecosystems: EXPRESS
The continental shelf and slope offshore California, Oregon, and Washington are home to deep-sea corals, chemosynthetic communities, and other sensitive habitats that could be impacted by the development of energy and mineral resources. The EXPRESS (Expanding Pacific Research and Exploration of Submerged Systems) campaign will map and characterize these special areas to help guide ocean management...
EXPRESS: Expanding Pacific Research and Exploration of Submerged Systems
EXPRESS is a multi-year, multi-institution cooperative research campaign in deep sea areas of California, Oregon, and Washington, including the continental shelf and slope. EXPRESS data and information are intended to guide wise use of living marine resources and habitats, inform ocean energy and mineral resource decisions, and improve offshore hazard assessments.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Organic Geochemistry Laboratory, Deep Sea Exploration, Mapping and Characterization
USGS Role in DEEP SEARCH: Deep Sea Exploration to Advance Research on Coral, Canyon, and Cold-seep Habitats
USGS scientists are collaborating with multiple agencies to provide the esssential foundation for understanding these deep-sea environments.
By
Ecosystems Mission Area, Land Management Research Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization, Gulf of Mexico
DISCOVRE: Diversity, Systematics and Connectivity of Vulnerable Reef Ecosystems
DISCOVRE ( DIversity, Systematics and COnnectivity of Vulnerable Reef Ecosystems) is an integrated, multidisciplinary, international effort investigating the unique and fragile deep-sea coral environments from the microscopic level to the ecosystem level.
Seeking the Seeps
From June 12 to July 3, 2019, the USGS sailed onboard Schmidt Ocean Institute’s R/V Falkor with several other partners, seeking methane seeps along the seafloor of several underwater canyons off the coast of Oregon and Washington. On this cruise, USGS scientists will seek to understand how much methane is coming out of these seeps, how it travels through the water column, and its ultimate fate in...
By
Ecosystems Mission Area, Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Communications and Publishing, Deep Sea Exploration, Mapping and Characterization, Subduction Zone Science
Connectivity of Coral Ecosystems in the Northwestern Gulf of Mexico
Connectivity among coral communities influences the probability of speciation and contributes to their ability to adapt to natural and anthropogenic stressors. Results from this study will enhance our understanding of Gulf of Mexcio ecosystems with regional conservation initiatives to inform the restoration of degraded deepwater coral communities and preserve long-term viability of coastal...
IMMeRSS- Seafloor Methane Seep Environments
Cold seeps, which are locations where chemicals -- including methane and other hydrocarbons, brine, hydrogen sulfide, and sometimes carbon dioxide--leak from the seafloor, occur worldwide on both passive and tectonically-active continental margins. Cold seeps are distinguished from hydrothermal vents, which are warm-temperature seeps associated with mid-ocean spreading centers.
IMMeRSS-- Interagency Mission for Methane Research on Seafloor Seeps
From May 3 to May 11, 2017, the U.S. Geological Survey, in collaboration with the British Geological Survey and with support from these two agencies, the National Oceanic and Atmospheric Administration (NOAA) Office of Ocean Exploration and Research, and the U.S. Department of Energy, will lead an expedition aboard the R/V Hugh R. Sharp to explore seafloor methane seeps on the northern U.S...
Science and Products
Filter Total Items: 18
Environmental Impacts following the 1970 Testing of Seabed Mining Equipment on the Blake Plateau- Quantification of Benthic Communities Across Disturbance Gradients
USGS researchers will characterize the ecology of benthic communities associated with deep-sea environments, including hardground features and adjacent soft sediments, and will build upon previous work conducted in areas off the U.S. east coast under consideration for oil and gas leases.
Characterization of Benthic Habitats on the Pacific Margin: Assessing the Connectivity of Hard Substrates, Seeps and Canyon Communities
USGS researchers will characterize the ecology of benthic invertebrates associated with deep-sea environments and broader food-web dynamics within hardground features, seeps, and adjacent soft sediments. This project will provide important information regarding deepwater benthic habitats, such as chemosynthetic communities and deep-sea corals, that could be affected by offshore wind development.
Mesophotic and Deep Benthic Communities: Habitat Assessment and Evaluation
Through a collaborative effort with other federal agencies and academic and research institutions, USGS is working to fill data gaps, determine baseline conditions, and characterize key community conditions at mesophotic and deep benthic sites impacted by the Deepwater Horizon oil spill.
Mesophotic and Deep Benthic Communities: Coral Propagation Technique (CPT) Development Project
Through a collaborative effort with other federal agencies and academic and research institutions, the USGS is working to inform and enhance the protection and management of coral communities in mesophotic and deep benthic areas of the Gulf of Mexico.
Ecosystems: EXPRESS
The continental shelf and slope offshore California, Oregon, and Washington are home to deep-sea corals, chemosynthetic communities, and other sensitive habitats that could be impacted by the development of energy and mineral resources. The EXPRESS (Expanding Pacific Research and Exploration of Submerged Systems) campaign will map and characterize these special areas to help guide ocean management...
EXPRESS: Expanding Pacific Research and Exploration of Submerged Systems
EXPRESS is a multi-year, multi-institution cooperative research campaign in deep sea areas of California, Oregon, and Washington, including the continental shelf and slope. EXPRESS data and information are intended to guide wise use of living marine resources and habitats, inform ocean energy and mineral resource decisions, and improve offshore hazard assessments.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Organic Geochemistry Laboratory, Deep Sea Exploration, Mapping and Characterization
USGS Role in DEEP SEARCH: Deep Sea Exploration to Advance Research on Coral, Canyon, and Cold-seep Habitats
USGS scientists are collaborating with multiple agencies to provide the esssential foundation for understanding these deep-sea environments.
By
Ecosystems Mission Area, Land Management Research Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization, Gulf of Mexico
DISCOVRE: Diversity, Systematics and Connectivity of Vulnerable Reef Ecosystems
DISCOVRE ( DIversity, Systematics and COnnectivity of Vulnerable Reef Ecosystems) is an integrated, multidisciplinary, international effort investigating the unique and fragile deep-sea coral environments from the microscopic level to the ecosystem level.
Seeking the Seeps
From June 12 to July 3, 2019, the USGS sailed onboard Schmidt Ocean Institute’s R/V Falkor with several other partners, seeking methane seeps along the seafloor of several underwater canyons off the coast of Oregon and Washington. On this cruise, USGS scientists will seek to understand how much methane is coming out of these seeps, how it travels through the water column, and its ultimate fate in...
By
Ecosystems Mission Area, Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Communications and Publishing, Deep Sea Exploration, Mapping and Characterization, Subduction Zone Science
Connectivity of Coral Ecosystems in the Northwestern Gulf of Mexico
Connectivity among coral communities influences the probability of speciation and contributes to their ability to adapt to natural and anthropogenic stressors. Results from this study will enhance our understanding of Gulf of Mexcio ecosystems with regional conservation initiatives to inform the restoration of degraded deepwater coral communities and preserve long-term viability of coastal...
IMMeRSS- Seafloor Methane Seep Environments
Cold seeps, which are locations where chemicals -- including methane and other hydrocarbons, brine, hydrogen sulfide, and sometimes carbon dioxide--leak from the seafloor, occur worldwide on both passive and tectonically-active continental margins. Cold seeps are distinguished from hydrothermal vents, which are warm-temperature seeps associated with mid-ocean spreading centers.
IMMeRSS-- Interagency Mission for Methane Research on Seafloor Seeps
From May 3 to May 11, 2017, the U.S. Geological Survey, in collaboration with the British Geological Survey and with support from these two agencies, the National Oceanic and Atmospheric Administration (NOAA) Office of Ocean Exploration and Research, and the U.S. Department of Energy, will lead an expedition aboard the R/V Hugh R. Sharp to explore seafloor methane seeps on the northern U.S...