Comparison of fishery-independent methods for sampling Main Hawaiian Islands Bottomfish assemblages (SE1208, EK60)

Optical, active acoustics, and research fishing data on bottomfish abundance and biomass were collected over predetermined grids to compare results of methodologies. Optical data were collected using a baited stationary Botcam, a TOAD (tethered optical assessment device) camera, and a BRUVS (shallow water baited/unbaited underwater video camera system). Acoustics data were collected using a narrow-beam EK60 system operating at 38, 70, and 120 kHz frequencies. Research fishing was conducted using hook-and-line on small boats. Biosampling on some of the fish was carried out including measurement of length and weight and preservation of otoliths, gonads, and stomach for post-survey analyses. Bottomfishing off the Sette were conducted simultaneously with acoustics data collection to groundtruth the acoustics data. CTD-mounted video camera drops we conducted simultaneously with acoustics recording to further groundtruth the acoustics data.

Data and Resources

Additional Info

Field Value
Last Updated December 3, 2017, 19:58
Created June 10, 2017, 18:12
access_constraints ["Cite as: Pacific Islands Fisheries Science Center (2012): Water Column Sonar Data Collection (SE1208, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5P26W2X [access date]", "Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.", "Resource may not be available for up to one year after initial collection."]
bbox-east-long -156.239029988959
bbox-north-lat 20.290610011026
bbox-south-lat 20.8307699860745
bbox-west-long -156.995140009622
coupled-resource []
dataset-reference-date [{"type": "creation", "value": "2012-09-25"}]
frequency-of-update notPlanned
guid gov.noaa.ngdc.mgg.wcd:SE1208_EK60
licence ["These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.", "Not subject to copyright protection within the United States."]
metadata-date 2017-10-02
progress completed
resource-type series
responsible-party [{"name": "PIFSC", "roles": ["principalInvestigator"]}]
spatial {"type": "Polygon", "coordinates": [[[-156.99514001, 20.8307699861], [-156.239029989, 20.8307699861], [-156.239029989, 20.290610011], [-156.99514001, 20.290610011], [-156.99514001, 20.8307699861]]]}
spatial-reference-system urn:ogc:def:crs:EPSG:4326
spatial_harvester true
temporal-extent-begin 2012-09-25T00:00:00
temporal-extent-end 2012-10-03T00:00:00