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Deep-Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND)- DP02 (EK80)


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        citation:  (CI_Citation)
            title:  Deep-Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND)- DP02 (EK80)
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                date:  2015-08-09
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                code:  DP02_EK80
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                  Anchor:  DOI doi:10.7289/V5RN35TF
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                organisationName:  Gulf of Mexico Research Initiative (GoMRI)
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                organisationName:  Gulf of Mexico Research Initiative (GoMRI)
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        abstract:  Patterns in acoustically derived biological scatter through the water column will be collected with multi-frequency scientific echosounders (Simrad EK60) operating at 18kHz, 38kHz, 70kHz and 120kHz following protocols developed during the NOAA NRDA DAP data collection operations. Specifically, during each cruise, transducers will be installed on a rigid pole mounted to the side of the ship, and calibrated at sea for operating conditions following protocols developed by Dr. Boswell during the ONSAP/DAP cruises. The dynamics of the mesopelagic scattering community will be examined through the depth dependent scattering responses at both frequencies (18 and 38kHz) as well as through the difference between the mean volume backscattering strength (MVBS; in dB) at 18 kHz and 38 kHz (dMVBS(18-38)). In addition, scatterers in the upper water column (~150m) will be examined by analyzing the all four available frequencies. By integrating both methods, the magnitude of biological scattering at discrete-depth intervals will be classified into major taxonomic components (e.g., fluid-like crustaceans, swimbladdered fishes) based on resonant properties and behavior. The biological data and ship data collected during this cruise are available in GRIIDC datasets R4.x257.226:0001 and R4.x257.226:0011, respectively.
        purpose:  o examine the spatial and temporal dynamics of deep sea nekton in the Gulf of Mexico through a multidisciplinary approach.
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            individualName:  Kevin Boswell
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            keyword:  Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering
            keyword:  Earth Science > Oceans > Aquatic Sciences > Fisheries
            keyword:  Earth Science > Oceans > Ocean Acoustics
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems
            keyword:  Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
            keyword:  Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
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            keyword:  Gulf of Mexico
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            otherConstraints:  Cite as: Kevin Boswell, Florida International University (2015): Water Column Sonar Data Collection (DP02, EK80). National Centers for Environmental Information, NOAA. doi:10.7289/V5RN35TF [access date]
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            otherConstraints:  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.
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                code:  Deep-Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND)
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        language:  eng; USA
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                    beginPosition:  2015-08-09T07:11:20
                    endPosition:  2015-08-21T20:10:57
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            name:  Simrad EK80 raw (.raw) format
            version:  1
            specification:  Simrad EK80 raw files. See the Simrad EK80 interface specification manual for additional information.
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                organisationName:  NOAA National Centers for Environmental Information
                positionName:  Water Column Sonar Data Manager
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                        postalCode:  80305-3328
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                other:  Instrument calibration information
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            statement:  Calibrated w/ calibration data
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                  DateTime:  2015-08-09T07:11:20
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                    individualName:  Kevin Boswell
                    organisationName:  Florida International University
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                            deliveryPoint:  Marine Sciences Building, 234 3000 NE 151st St.
                            city:  North Miami,
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                            postalCode:  33181
                            country:  USA
                            electronicMailAddress:  kevin.boswell@fiu.edu
                    role:  (CI_RoleCode) principalInvestigator
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                title:  Simrad EK80 Echosounder
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                    code:  EK80
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                    organisationName:  Simrad - Kongsberg Maritime AS
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                            linkage: https://www.kongsberg.com/maritime/products/ocean-science/ocean-science/es_scientific/ek80software/
                            name:  Simrad Ek80 information web page
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                code:  Simrad EK80
            type:  echosounder
            description:  The Simrad EK80 is the most modern "high end" split beam scientific echo sounder in the fishery scientific market. Based on more than 60 years of research and development in close collaboration with leading marine scientists this wide band echo sounder system has succeeded the famous EK60, which became an international standard for fish stock assessment. The Simrad EK80 can operate a large number of frequencies simultaneously ranging from 10 to 500 kHz. A wide selection of high quality accurate transducers is available.
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                code:  DP02_EK80
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                title:  R/V Point Sur
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                    date:  2016-01-22
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                code:  Point Sur
            description:  Research vessel owned by the University of Southern Mississippi and operated in a cooperative agreement between University of Southern Mississippi and Louisiana Universities Marine Consortium.
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                    title:  Simrad EK60 Echosounder
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                        code:  EK60
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                        organisationName:  Simrad - Kongsberg Maritime AS
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                                voice:  +47 3303 4000 (Norway)
                                facsimile:  +47 3304 2987 (Norway)
                            address:  (CI_Address)
                                deliveryPoint:  P.O. Box 111
                                deliveryPoint:  Strandpromenaden 50
                                city:  Horten
                                postalCode:  3191
                                country:  Norway
                                electronicMailAddress:  contact@simrad.com
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                                linkage: http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/A25148D8E9F00D0DC12570DE0050A7CB?OpenDocument
                                name:  Simrad EK60 Scientific echo sounder
                                description:  Information on the Simrad EK60 including file format documentation.
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                    code:  Simrad EK60
                type:  singlebeam
                description:  The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system.