Details of "Characterization of sound scattering layers in the Bay of Biscay using broadband acoustics, nets and video" acoustics and biological Data


Dataset identification

Title of dataset"Characterization of sound scattering layers in the Bay of Biscay using broadband acoustics, nets and video" acoustics and biological Data
Narrative summary of datasetSound scattering layers (SSLs) are observed over a broad range of spatio-temporal scales and geographical areas. SSLs represent a large biomass, likely involved in the biological carbon pump and the structure of marine trophic webs. Yet, the taxonomic composition remains largely unknown for many SSLs. To investigate the challenges of SSL sampling, we performed a survey in a small study area in the Northern Bay of Biscay (France) by combining broadband and narrowband acoustics, net sampling, imagery and video recordings. In order to identify organisms contributing to the observed SSLs, we compared measured frequency spectra to forward predicted spectra derived from biological data. This dataset comprises the echo-integrated broadband acoustic data (in Sv(f)), the nets position and depth, and the abundance and the size of the catched organisms acquired during a specific operation of SSLs sampling during (Blanluet et al.)-[]. Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.
  • 486_16002400
  • Start date2016-05-27
    End date2016-05-31

    Responsible organisations

    Organisation nameIfremer, Scientific Information Systems for the sea
    Role of organisationDataset Holding Organisation
    Organisation nameSEA scieNtific Open data Edition
    Role of organisationPublisher
    How to citeBlanluet Arthur, Doray Mathieu, Berger Laurent, Romagnan Jean-Baptiste, Le Bouffant Naig, Lehuta Sigrid, Petitgas Pierre (2016). Characterization of sound scattering layers in the Bay of Biscay using broadband acoustics, nets and video acoustics and biological Data. SEANOE.

    Dataset availability


    Latitude north boundary47.595333
    Longitude east boundary-4.088879
    Latitude south boundary47.365157
    Longitude west boundary-4.588757
    Sea areaNorth Atlantic Ocean
    Celtic Sea
    Bay of Biscay
    Atlantic Ocean
    Northeast Atlantic Ocean (40W)

    Data types, collection and processing

    Observation typeinapplicable
    ParameterAcoustic backscatter in the water column
    Fish morphology, age and physiology
    Fish abundance in water bodies
    Plankton abundance per unit volume of the water column
    Instrument typepelagic trawl nets
    Instrument nameDual Methot Isaacs-Kidd Trawl net
    Instrument typemultinet
    Instrument nameHydro-Bios MultiNet Mammoth
    Instrument typeFish-finder echosounders
    Instrument nameSimrad EK-60 echosounder
    Platform typeresearch vessel
    Platform nameThalassa
    Data quality processing informationProcessed data

    Process information

    Submitting organisationISTPM (Ifremer Nantes)
    Submission identifier (UUID)a53ad03f-3632-6323-3234-000000062440
    Date of dataset creation2016-05-01
    Date of dataset revision2019-11-21
    Date of metadata creation2020-1-31
    Date of metadata latest revision2022-06-09
    Date of publishing2022-06-26
    Date of processed dataset publication2023-02-02
    Processing data centreFlanders Marine Institute
    Summary record-ID1069