2013 Joint U.S.-Canada Integrated Acoustic and Trawl Survey of Pacific Hake and Pacific Sardine (SaKe 2013) (SH1305)Entry ID: gov.noaa.ngdc.mgg.wcd.SH1305_EK60
Abstract: Scientists from the Fishery Resource Analysis and Monitoring (FRAM) division at the NOAA Fisheries Northwest Fisheries Science Center (NWFSC), the Fishery Resources Division (FRD) at the Southwest Fisheries Science Center (SWFSC), and the Pacific region of the Department of Fisheries and Oceans Canada (DFO) conducted the 2013 Integrated Acoustic Survey (IAT) survey aboard the NOAA Ship Bell M. ... Shimada and the Canadian Coast Guard Ship (CCGS) W.E. Ricker. Both vessels are stern trawlers equipped for fisheries and oceanographic research. The Shimada surveyed from 32.8?N to 51.1?N between June 9 and August 25, and the Ricker surveyed from 51.4?N to 54.7?N between August 22 and September 11. Hake aggregations were targeted along the continental shelf and upper slope of the entire survey area; sardine aggregations were targeted only as far north as the northwest end of Vancouver Island.
The portion of the survey conducted with the Bell M. Shimada focuses on both Pacific sardine (Sardinops sagax) and Pacific hake (Merluccius productus), a Joint U.S.-Canada Integrated Acoustic and Trawl Survey of Pacific Hake and Pacific Sardine (SaKe 2013) covered the area from the Southern California Bight (SCB), CA to north end of the Vancouver Island, Canada. The data include here are those collected on NOAA Ship Bell M. Shimada only, i.e. Sake 2013 data only.
The survey began in the SCB, proceeded north toward Dixon Entrance, and finished along the west side of Haida Gwaii (formerly called the Queen Charlotte Islands). In the SCB, nine parallel line transects (spaced roughly 20 nmi apart and oriented northeast-southwest) spanned from San Diego to Point Conception. Approximately 30 nmi north of Point Conception, acoustic transects assumed an east-west orientation, were spaced 10 nmi apart, and ranged from the 30-m isobath (or as close to shore as was safely navigable) to either the 1,500-m isobath or a location 35 nmi west of the inshore waypoint, whichever was farther offshore. (Transects north of Vancouver Island went inshore to the 50-m isobath or as close to shore as was safely navigable.) Transects in Dixon Entrance had a northsouth orientation. A few transects along the west coast of Haida Gwaii were run as modified zigzags due to time constraints. The Shimada was tasked with completing transects up to the north end of Vancouver Island, at which point the Ricker would complete the remainder. All transects were traversed sequentially, usually in alternating directions. When hake were detected at the offshore end of a transect, the vessel proceeded west to the end of the hake sign and then beyond for an additional 0.5 nmi to ensure that the end of the aggregation was located. This protocol was in place to ensure that the interpolation algorithm calculated the correct biomass at the offshore ends of transects.
Purpose: to assess the abundance, distribution, and biology of coastal hake (Merluccius productus) and pacific sardine (Sardinops sagax) off the west coast of US and Canada
Data Set Citation
Dataset Title: 2013 Joint U.S.-Canada Integrated Acoustic and Trawl Survey of Pacific Hake and Pacific Sardine (SaKe 2013) (SH1305)
Dataset DOI: doi:10.7289/V57942N7
This data set description is a member of a collection. The collection is described in
OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING
OCEANS > AQUATIC SCIENCES > FISHERIES
OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS
BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS
BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > PELAGIC
OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
Use Constraints Cite as: Northwest Fisheries Science Center (2013): Water Column Sonar Data Collection (SH1305, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V57942N7 [access date]
In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Data Set Progress
Distribution Format: Kongsberg/Simrad instrument files (.raw or .wcd)
Role: DIF AUTHOR
Phone: (303) 497-4742
Email: wcd.info at noaa.gov
325 Broadway, Mail Code E/GC3
Province or State: CO
Postal Code: 80305-3328
Email: lawrence.c.hufnagle at noaa.gov
2725 Montlake Blvd. E.
Province or State: WA
Postal Code: 98112
Email: rebecca.thomas at noaa.gov
2715 Montlake Blvd. E.
Province or State: WA
Postal Code: 98112
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2015-10-01
Last DIF Revision Date: 2018-05-22