Habitat Mapping Cruise (HB0805, EK60)
Objectives are to: 1) perform multibeam mapping of transitional and deepwater habitats
in Hudson Canyon (off New Jersey) with the National Institute of Undersea Science
and Technology (NIUST) AUV Eagle Ray. About one half of the shelf portion of the
canyon was mapped with Eagle Ray between 2007 aboard Ronald H. Brown and 2008 aboard
Henry B. Bigelow. We seek to complete the mapping of the shelf segment of the Hudson
Canyon on this cruise; 2) perform visual ground truthing of areas up to 1,000 m deep
in Hudson Canyon using the NIUST AUV Mola Mola. In particular, we will be investigating
ravines in canyon walls mapped by Eagle Ray for vulnerable deepwater coral and sponge
communities, tilefish pueblo villages, and suspected areas of methane blowouts in
the canyon bottom for vulnerable chemosynthetic communities. Such vulnerable communities
may be at risk due to overlap with deepsea red crab, witch flounder, and/or monkfish
distributions. The intention is to detect and locate vulnerable communities and also
to gain experience for development of protocols for further exploration for vulnerable
deepwater habitats in canyon and slope areas; 3) perform a series of CTD/rosette sampler
casts down the canyon to a maximum depth of about 1,200 m in the canyon axis. This
will provide a near-synoptic, 3-dimensional view of water mass interaction around
Hudson Canyon and allow collection of water samples at multiple depths for dissolved
methane analysis. The latter will help resolve the source of elevated methane previously
detected in deep water within Hudson Canyon. Possible discovery of a local seep raises
the possibility of a chemosynthetic community supported by that feature; and 4) collect
ME70 multibeam sonar data for purposes of benthic mapping in order to resolve some
issues encountered during summer 2008 cruises for that purpose.
- Cite as: Northeast Fisheries Science Center (2008): Water Column Sonar Data Collection (HB0805, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5BG2KZC [access date]
- HB0805_Leg01
- doi:10.7289/V5BG2KZC
gov.noaa.ngdc.mgg.wcd:HB0805_EK60
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Ordering Instructions | Contact the Water Column Sonar Data Manager to order data |
Distributor | Water Column Sonar Data Manager NOAA National Centers for Environmental Information (303) 497-4742 wcd.info@noaa.gov |
Dataset Principal Investigator | Vincent Guida Research Fisheries Biologist NEFSC 732-872-3020 vincent.guida@noaa.gov |
Time Period | 2008-06-19T03:02:12 to 2008-07-03T13:21:26 |
Spatial Reference System | urn:ogc:def:crs:EPSG:4326 |
Spatial Bounding Box Coordinates |
West:-74.9632939298
East:-71.31641
South:38.1180637963
North:41.53116
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Documentation links not available. |
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Purpose | Benthic and demersal mapping of the Hudson Canyon area using acoustic and optical technology. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas"
publication S-23)
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Last Modified: 2017-05-30
For questions about the information on this page, please email:wcd.info@noaa.gov