gov.noaa.nmfs.inport:31672
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Alaska Fisheries Science Center
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2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Gulf of Alaska M1501
Alex's mooring recovery survey
publication
NOAA/NMFS/EDM
31672
https://www.fisheries.noaa.gov/inport/item/31672
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McCarthy, Abigail
abigail.mccarthy@noaa.gov
originator
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Three trawl-resistant bottom- mounted moorings (TRBM) instrumented with newly developed autonomous battery powered 70 kHz split-beam echosounders were deployed in Shelikof Strait, Alaska (Fig. 39) to observe pollock abundance over the spawning season. The moorings were deployed from the NOAA ship Oscar Dyson 12-19 February, and recovered from a chartered fishing vessel May 5-10, 2015. The mooring locations were visited by survey vessels on four occasions to conduct mooring-related AT survey work (February 25-36, March 17-21, March 27-30, and May 5-10). A large-scale acoustic survey of Shelikof Strait (Fig. 20) was conducted on each occasion to establish the abundance and distribution of pollock over a broader area. Small-scale acoustic surveys (Fig. 39) and midwater trawl hauls (Tables 3, 10 and 11) were conducted in the vicinity of the moorings during each visit. The observations from the moorings and survey vessels will be compared to establish the spatial relationship and associated uncertainty between the mooring measurements and the ship-based acoustic-trawl survey data.
Pollock Stock assessment, moorings
DeRobertis, Alex
206 526 4789
alex.derobertis@noaa.gov
pointOfContact
Towler, Rick
rick.towler@noaa.gov
custodian
DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
AFSC/RACE/MACE: Upward looking moored echosounders - Shelikof Strait
project
InPort
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Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Gulf of Alaska M1501 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/31672.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
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Access Constraints: The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Data Point Of Contact for estimated time of release.
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Use Constraints: User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
31672
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/31672.pdf
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NOAA Data Management Plan (DMP)
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crossReference
eng; US
oceans
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-155.863
-154.197
56.6393
58.08
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2015-05-01
2015-05-02
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dataset
Acoustic data were recorded at the five split-beam frequencies using ER60 software and, as a backup, acoustic telegram data were logged with Myriax EchoLog 500 software. Acoustic measurements were collected from 16 m below the sea surface to within 0.5 m of the sounder-detected bottom or a maximum of 1,000 m in deep water. Data were analyzed using Myriax Echoview post-processing software. See National Marine Fisheries Service (NMFS) 2013. NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf