EK60 Water Column Sonar Data Collected During HB0806

Description

Habitat Mapping Cruise - Tunicates (HB0806, EK60). Objectives: Use otter trawls (if available), beam trawls (if not), Naturalist Dredge, SEABOSS photography/bottom grab equipment, CTDs, and large (10-30 liter) Niskin water bottles and ship’s ADCP to conduct the following operations: 1) determine changes in distribution and condition of invasive colonial tunicate Didemnum vexillum on northern Georges Bank gravel habitat, and also northeast of Great South Channel; 2) document the influence other ecosystem components, substrates, hydrology, and disturbances, including fishing disturbances on tunicate-benthic/demersal stock interactions; 3) collect tunicate specimens for further study including DNA analysis, and collect near-bottom water samples in tunicate areas; 4) explore the function of a newly-discovered benthic/demersal community not influenced by trawling or tunicate colonization, 5) continue monitoring recovery and productivity of untrawled gravel habitats in HAPC on northeastern Georges Bank, as compared to nearby trawled habitats; also, time permitting, and 6) re-occupy existing stations and sample new stations on a transect from the northeast corner of NLCA to outside the eastern boundary of NLCA.

Resources

Name Format Description Link
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
33 Publication of Sea Areas is maintained by IHO. http://www.iho-ohi.net/iho_pubs/standard/S-23/S23_1953.pdf
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project https://registry.opendata.aws/ncei-wcsd-archive/
0 Web page containing information on the water column sonar data archive. https://www.ngdc.noaa.gov/mgg/wcd/
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
0 Interactive map viewer to allow discovery and access to water column sonar data https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=HB0806&instruments=EK60

Tags

  • water column
  • vertical location
  • acoustic scattering
  • water column mapping system
  • benthic
  • ecosystems
  • nesdis
  • biosphere
  • bathymetry
  • in situ/laboratory instruments
  • oceans
  • national geophysical data center
  • noaa
  • marine ecosystems
  • aquatic sciences
  • u.s. department of commerce
  • profilers/sounders
  • earth science
  • acoustic sounders
  • national marine fisheries service
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • aquatic ecosystems
  • doc/noaa/nesdis/ncei
  • fisheries
  • doc/noaa/nmfs
  • pelagic
  • wcms
  • north atlantic ocean
  • seafloor topography
  • national centers for environmental information
  • ocean acoustics

Topics

Categories