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Dann S Blackwood (Former Employee)

Science and Products

Filter Total Items: 43

Observations of recruitment and colonization by tunicates and associated invertebrates using giant one-meter2 recruitment plates at Woods Hole, Massachusetts

Large recruitment plates measuring 1 × 1 m were deployed over an 18-month period from September 2013 to March 2015 for the purpose of documenting recruitment and colonization processes of marine invertebrate species at Woods Hole, Massachusetts. Each side of two plates was subdivided into 16 subareas (25 × 25 cm), and an observational strategy was developed whereby, at approximately two-week inter
Authors
Page C. Valentine, M.R. Carman, Dann S. Blackwood
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments in southern Narragansett Bay, Rhode Island

Multibeam echosounder data collected by the National Oceanic and Atmospheric Administration along with sediment samples and still and video photography of the sea floor collected by the U.S. Geological Survey were used to interpret sea-floor features and sedimentary environments in southern Narragansett Bay, Rhode Island, as part of a long-term effort to map the sea floor along the northeastern co
Authors
Katherine Y. McMullen, Lawrence J. Poppe, Dann S. Blackwood, Matthew J. Nardi, Matthew A. Andring
By
Woods Hole Coastal and Marine Science Center

Marine geophysical data collected in a shallow back-barrier estuary, Barnegat Bay, New Jersey

In 2011, the U.S. Geological Survey, in cooperation with the New Jersey Department of Environmental Protection, began a multidisciplinary research project to better understand the water quality in Barnegat Bay, New Jersey. This back-barrier estuary is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen stress, macroalgae, stinging nettles, and brown tide. T
Authors
Brian D. Andrews, Jennifer L. Miselis, William W. Danforth, Barry J. Irwin, Charles R. Worley, Emile M. Bergeron, Dann S. Blackwood
By
Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments in western Block Island Sound, offshore of Fishers Island, New York

Multibeam-bathymetric and sidescan-sonar data, collected by the National Oceanic and Atmospheric Administration in a 114-square-kilometer area of Block Island Sound, southeast of Fishers Island, New York, are combined with sediment samples and bottom photography collected by the U.S. Geological Survey from 36 stations in this area in order to interpret sea-floor features and sedimentary environmen
Authors
Katherine Y. McMullen, Lawrence J. Poppe, William W. Danforth, Dann S. Blackwood, William G. Winner, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Geological sampling data and benthic biota classification: Buzzards Bay and Vineyard Sound, Massachusetts

Sea-floor sample collection is an important component of a statewide cooperative mapping effort between the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). Sediment grab samples, bottom photographs, and video transects were collected within Vineyard Sound and Buzzards Bay in 2010 aboard the research vesselConnecticut. This report contains sample data an
Authors
Seth D. Ackerman, Adrienne L. Pappal, Emily C. Huntley, Dann S. Blackwood, William C. Schwab
By
Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments of western Block Island Sound, northeast of Gardiners Island, New York

Multibeam-echosounder data, collected during survey H12299 by the National Oceanic and Atmospheric Administration in a 162-square-kilometer area of Block Island Sound, northeast of Gardiners Island, New York, are used along with sediment samples and bottom photography, collected at 37 stations in this area by the U.S. Geological Survey during cruise 2013-005-FA, to interpret sea-floor features and
Authors
Katherine Y. McMullen, Lawrence J. Poppe, William W. Danforth, Dann S. Blackwood, Andrew R. Clos, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology in northwestern Block Island Sound, Rhode Island

Multibeam-echosounder and sidescan-sonar data, collected by the National Oceanic and Atmospheric Administration in a 69-square-kilometer area of northwestern Block Island Sound, are used with sediment samples, and still and video photography of the sea floor, collected by the U.S. Geological Survey at 43 stations within this area, to interpret the sea-floor features and sedimentary environments. F
Authors
Katherine Y. McMullen, Lawrence J. Poppe, Seth D. Ackerman, Dann S. Blackwood, D.A. Woods
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology in northeastern Block Island Sound, Rhode Island

Multibeam-echosounder and sidescan-sonar data collected by the National Oceanic and Atmospheric Administration in northeastern Block Island Sound, combined with sediment samples and bottom photography collected by the U.S. Geological Survey, are used to interpret sea-floor features and sedimentary environments in this 52-square-kilometer-area offshore Rhode Island. Boulders, which are often overgr
Authors
Kate Y. McMullen, Lawrence J. Poppe, Seth D. Ackerman, Dann S. Blackwood, P.G. Lewit, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology of Long Island Sound north of Duck Pond Point, New York

The U.S. Geological Survey, the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection are mapping the sea floor in coastal areas of the northeastern United States. As part of the project, more than 100 square kilometers of multibeam-echosounder data, 23 sediment samples, bottom video, and 86 still photographs were obtained from an area i
Authors
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, K.A. Glomb, E. F. Doran
By
Woods Hole Coastal and Marine Science Center

Sea-Floor geology and character of Eastern Rhode Island Sound West of Gay Head, Massachusetts

Gridded multibeam bathymetry covers approximately 102 square kilometers of sea floor in eastern Rhode Island Sound west of Gay Head, Massachusetts. Although originally collected for charting purposes during National Oceanic and Atmospheric Administration hydrographic survey H11922, these acoustic data and the sea-floor stations subsequently occupied to verify them (1) show the composition and terr
Authors
L.J. Poppe, K.Y. McMullen, S.D. Ackerman, D.S. Blackwood, B. J. Irwin, J.D. Schaer, M.R. Forrest
By
Woods Hole Coastal and Marine Science Center

Surficial geology of the sea floor in Central Rhode Island Sound Southeast of Point Judith, Rhode Island

The U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA) are working together to study sea-floor environments off the northeast coast of the United States. During 2008, NOAA survey H11996 collected multibeam echosounder data in a 65-square kilometer area in central Rhode Island Sound, southeast of Point Judith, Rhode Island. During 2010, the USGS collected b
Authors
K.Y. McMullen, L.J. Poppe, S.D. Ackerman, D.S. Blackwood, J.D. Schaer, M.A. Nadeau, D.A. Wood
By
Woods Hole Coastal and Marine Science Center

Surficial geology of the sea floor in Long Island Sound offshore of Orient Point, New York

The U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection (CT DEP) are working cooperatively to map and interpret features of the sea floor along the northeastern coast of the United States. This report presents multibeam bathymetry and sidescan-sonar data obtained during NOAA survey H11446, which was c
Authors
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, M.R. Guberski, D.A. Wood, E. F. Doran
By
Woods Hole Coastal and Marine Science Center
link
Graphic showing the geophysical systems used to map the seafloor surface and underlying structure, and sampling instruments

Sea Floor Mapping Group

The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing, interpretation and publication, logistics, design, and research and development. SFMG has...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization, Hurricane Sandy
link

Sea Floor Mapping Group

The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing, interpretation and publication, logistics, design, and research and development. SFMG has...
Learn More

Sea-Floor Sediment and Imagery Data Collected in Long Island Sound, Connecticut and New York, 2017 and 2018

Two marine geological surveys were conducted in Long Island Sound, Connecticut and New York, in fall 2017 and spring 2018 by the U.S. Geological Survey, University of Connecticut, and University of New Haven through the Long Island Sound Mapping and Research Collaborative. Sea-floor images and videos were collected at 210 sampling sites within the survey area, and surficial sediment samples were c
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Sea-Floor Sediment and Imagery Data Collected in Nantucket Sound, Massachusetts, 2016 and 2017

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area
By
Woods Hole Coastal and Marine Science Center

Sampling data collected in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012, U.S. Geological Survey Field Activity 2012-035-FA

Accurate data and maps of sea-floor geology are important first steps toward protecting habitat, delineating marine resources, and assessing environmental changes due to natural or human effects. Initiated in 2003, the primary objective of the Geologic Mapping of the Massachusetts Sea Floor program is to develop regional geologic framework information for the management of coastal and marine resou
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

High-resolution geophysical and sampling data collected at the mouth of Connecticut River, Old Saybrook to Essex, 2012, USGS Field Activity 2012-024-FA

A geophysical and geological survey was conducted at the mouth of Connecticut River from Old Saybrook to Essex, CT in September 2012. Approximately 227 linear-km of digital Chirp sub bottom (seismic-reflection) and 234-kHz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, river-bed photographs and/or video at eighty-seven sites within the geophys
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed
SEABOSS deployment from Ocean Survey Vessel Bold
SEABOSS deployment
SEABOSS deployment
SEABOSS deployment from Ocean Survey Vessel Bold

SEABOSS deployment

SEABOSS deployment

 Left to right: Mike Bastoni (volunteer) and Lisa Engler (Massachusetts Bays Program) deploying the USGS-desgined SEABed Observation and Sampling System (SEABOSS) from Ocean Survey Vessel Bold, with Marinna Martini (USGS) running the winch

By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center
SEABOSS deployment from Ocean Survey Vessel Bold

SEABOSS deployment

SEABOSS deployment

 Left to right: Mike Bastoni (volunteer) and Lisa Engler (Massachusetts Bays Program) deploying the USGS-desgined SEABed Observation and Sampling System (SEABOSS) from Ocean Survey Vessel Bold, with Marinna Martini (USGS) running the winch

By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Science and Products

Filter Total Items: 43

Observations of recruitment and colonization by tunicates and associated invertebrates using giant one-meter2 recruitment plates at Woods Hole, Massachusetts

Large recruitment plates measuring 1 × 1 m were deployed over an 18-month period from September 2013 to March 2015 for the purpose of documenting recruitment and colonization processes of marine invertebrate species at Woods Hole, Massachusetts. Each side of two plates was subdivided into 16 subareas (25 × 25 cm), and an observational strategy was developed whereby, at approximately two-week inter
Authors
Page C. Valentine, M.R. Carman, Dann S. Blackwood
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments in southern Narragansett Bay, Rhode Island

Multibeam echosounder data collected by the National Oceanic and Atmospheric Administration along with sediment samples and still and video photography of the sea floor collected by the U.S. Geological Survey were used to interpret sea-floor features and sedimentary environments in southern Narragansett Bay, Rhode Island, as part of a long-term effort to map the sea floor along the northeastern co
Authors
Katherine Y. McMullen, Lawrence J. Poppe, Dann S. Blackwood, Matthew J. Nardi, Matthew A. Andring
By
Woods Hole Coastal and Marine Science Center

Marine geophysical data collected in a shallow back-barrier estuary, Barnegat Bay, New Jersey

In 2011, the U.S. Geological Survey, in cooperation with the New Jersey Department of Environmental Protection, began a multidisciplinary research project to better understand the water quality in Barnegat Bay, New Jersey. This back-barrier estuary is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen stress, macroalgae, stinging nettles, and brown tide. T
Authors
Brian D. Andrews, Jennifer L. Miselis, William W. Danforth, Barry J. Irwin, Charles R. Worley, Emile M. Bergeron, Dann S. Blackwood
By
Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments in western Block Island Sound, offshore of Fishers Island, New York

Multibeam-bathymetric and sidescan-sonar data, collected by the National Oceanic and Atmospheric Administration in a 114-square-kilometer area of Block Island Sound, southeast of Fishers Island, New York, are combined with sediment samples and bottom photography collected by the U.S. Geological Survey from 36 stations in this area in order to interpret sea-floor features and sedimentary environmen
Authors
Katherine Y. McMullen, Lawrence J. Poppe, William W. Danforth, Dann S. Blackwood, William G. Winner, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Geological sampling data and benthic biota classification: Buzzards Bay and Vineyard Sound, Massachusetts

Sea-floor sample collection is an important component of a statewide cooperative mapping effort between the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). Sediment grab samples, bottom photographs, and video transects were collected within Vineyard Sound and Buzzards Bay in 2010 aboard the research vesselConnecticut. This report contains sample data an
Authors
Seth D. Ackerman, Adrienne L. Pappal, Emily C. Huntley, Dann S. Blackwood, William C. Schwab
By
Woods Hole Coastal and Marine Science Center

Sea-floor morphology and sedimentary environments of western Block Island Sound, northeast of Gardiners Island, New York

Multibeam-echosounder data, collected during survey H12299 by the National Oceanic and Atmospheric Administration in a 162-square-kilometer area of Block Island Sound, northeast of Gardiners Island, New York, are used along with sediment samples and bottom photography, collected at 37 stations in this area by the U.S. Geological Survey during cruise 2013-005-FA, to interpret sea-floor features and
Authors
Katherine Y. McMullen, Lawrence J. Poppe, William W. Danforth, Dann S. Blackwood, Andrew R. Clos, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology in northwestern Block Island Sound, Rhode Island

Multibeam-echosounder and sidescan-sonar data, collected by the National Oceanic and Atmospheric Administration in a 69-square-kilometer area of northwestern Block Island Sound, are used with sediment samples, and still and video photography of the sea floor, collected by the U.S. Geological Survey at 43 stations within this area, to interpret the sea-floor features and sedimentary environments. F
Authors
Katherine Y. McMullen, Lawrence J. Poppe, Seth D. Ackerman, Dann S. Blackwood, D.A. Woods
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology in northeastern Block Island Sound, Rhode Island

Multibeam-echosounder and sidescan-sonar data collected by the National Oceanic and Atmospheric Administration in northeastern Block Island Sound, combined with sediment samples and bottom photography collected by the U.S. Geological Survey, are used to interpret sea-floor features and sedimentary environments in this 52-square-kilometer-area offshore Rhode Island. Boulders, which are often overgr
Authors
Kate Y. McMullen, Lawrence J. Poppe, Seth D. Ackerman, Dann S. Blackwood, P.G. Lewit, Castle E. Parker
By
Woods Hole Coastal and Marine Science Center

Sea-floor geology of Long Island Sound north of Duck Pond Point, New York

The U.S. Geological Survey, the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection are mapping the sea floor in coastal areas of the northeastern United States. As part of the project, more than 100 square kilometers of multibeam-echosounder data, 23 sediment samples, bottom video, and 86 still photographs were obtained from an area i
Authors
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, K.A. Glomb, E. F. Doran
By
Woods Hole Coastal and Marine Science Center

Sea-Floor geology and character of Eastern Rhode Island Sound West of Gay Head, Massachusetts

Gridded multibeam bathymetry covers approximately 102 square kilometers of sea floor in eastern Rhode Island Sound west of Gay Head, Massachusetts. Although originally collected for charting purposes during National Oceanic and Atmospheric Administration hydrographic survey H11922, these acoustic data and the sea-floor stations subsequently occupied to verify them (1) show the composition and terr
Authors
L.J. Poppe, K.Y. McMullen, S.D. Ackerman, D.S. Blackwood, B. J. Irwin, J.D. Schaer, M.R. Forrest
By
Woods Hole Coastal and Marine Science Center

Surficial geology of the sea floor in Central Rhode Island Sound Southeast of Point Judith, Rhode Island

The U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA) are working together to study sea-floor environments off the northeast coast of the United States. During 2008, NOAA survey H11996 collected multibeam echosounder data in a 65-square kilometer area in central Rhode Island Sound, southeast of Point Judith, Rhode Island. During 2010, the USGS collected b
Authors
K.Y. McMullen, L.J. Poppe, S.D. Ackerman, D.S. Blackwood, J.D. Schaer, M.A. Nadeau, D.A. Wood
By
Woods Hole Coastal and Marine Science Center

Surficial geology of the sea floor in Long Island Sound offshore of Orient Point, New York

The U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection (CT DEP) are working cooperatively to map and interpret features of the sea floor along the northeastern coast of the United States. This report presents multibeam bathymetry and sidescan-sonar data obtained during NOAA survey H11446, which was c
Authors
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, M.R. Guberski, D.A. Wood, E. F. Doran
By
Woods Hole Coastal and Marine Science Center
link
Graphic showing the geophysical systems used to map the seafloor surface and underlying structure, and sampling instruments

Sea Floor Mapping Group

The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing, interpretation and publication, logistics, design, and research and development. SFMG has...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization, Hurricane Sandy
link

Sea Floor Mapping Group

The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing, interpretation and publication, logistics, design, and research and development. SFMG has...
Learn More

Sea-Floor Sediment and Imagery Data Collected in Long Island Sound, Connecticut and New York, 2017 and 2018

Two marine geological surveys were conducted in Long Island Sound, Connecticut and New York, in fall 2017 and spring 2018 by the U.S. Geological Survey, University of Connecticut, and University of New Haven through the Long Island Sound Mapping and Research Collaborative. Sea-floor images and videos were collected at 210 sampling sites within the survey area, and surficial sediment samples were c
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Sea-Floor Sediment and Imagery Data Collected in Nantucket Sound, Massachusetts, 2016 and 2017

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area
By
Woods Hole Coastal and Marine Science Center

Sampling data collected in Ipswich Bay and Massachusetts Bay, Massachusetts, in 2012, U.S. Geological Survey Field Activity 2012-035-FA

Accurate data and maps of sea-floor geology are important first steps toward protecting habitat, delineating marine resources, and assessing environmental changes due to natural or human effects. Initiated in 2003, the primary objective of the Geologic Mapping of the Massachusetts Sea Floor program is to develop regional geologic framework information for the management of coastal and marine resou
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

High-resolution geophysical and sampling data collected at the mouth of Connecticut River, Old Saybrook to Essex, 2012, USGS Field Activity 2012-024-FA

A geophysical and geological survey was conducted at the mouth of Connecticut River from Old Saybrook to Essex, CT in September 2012. Approximately 227 linear-km of digital Chirp sub bottom (seismic-reflection) and 234-kHz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, river-bed photographs and/or video at eighty-seven sites within the geophys
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed
SEABOSS deployment from Ocean Survey Vessel Bold
SEABOSS deployment
SEABOSS deployment
SEABOSS deployment from Ocean Survey Vessel Bold

SEABOSS deployment

SEABOSS deployment

 Left to right: Mike Bastoni (volunteer) and Lisa Engler (Massachusetts Bays Program) deploying the USGS-desgined SEABed Observation and Sampling System (SEABOSS) from Ocean Survey Vessel Bold, with Marinna Martini (USGS) running the winch

By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center
SEABOSS deployment from Ocean Survey Vessel Bold

SEABOSS deployment

SEABOSS deployment

 Left to right: Mike Bastoni (volunteer) and Lisa Engler (Massachusetts Bays Program) deploying the USGS-desgined SEABed Observation and Sampling System (SEABOSS) from Ocean Survey Vessel Bold, with Marinna Martini (USGS) running the winch

By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center
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