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.
Dataset Citation
- 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]
Dataset Identifiers
- HB0805_Leg01
- doi:10.7289/V5BG2KZC
ISO 19115-2 Metadata
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 |
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West: -74.9632939298
East: -71.31641
South: 38.1180637963
North: 41.53116
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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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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
For questions about the information on this page, please email: wcd.info@noaa.gov