• Login
    View Item 
    •   Marine Institute Open Access Repository
    • Marine Institute Community of Research Publications
    • Survey & Cruise Reports
    • Nephrops Under Water TV Surveys
    • View Item
    •   Marine Institute Open Access Repository
    • Marine Institute Community of Research Publications
    • Survey & Cruise Reports
    • Nephrops Under Water TV Surveys
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Marine OARCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    Display statistics

    Porcupine Bank Nephrops Grounds (FU16) 2020 UWTV Survey Report and catch scenarios for 2021

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    FU16 Survey Report UWTV 2020.pdf
    Size:
    1.735Mb
    Format:
    PDF
    Description:
    Porcupine Bank Nephrops Grounds ...
    Download
    Author
    Aristegui, M.
    Blaszkowski, M.
    Doyle, J.
    Hehir, I.
    Lynch, D.
    Ryan, G.
    Lordan, C.
    Keyword
    Nephrops norvegicus
    Porcupine Bank
    stock assessment
    geostatistics
    underwater television (UWTV)
    sea-pens
    benthos
    CV20017
    Date
    2020
    Publisher
    Marine Institute
    
    Metadata
    Show full item record
    Abstract
    This report provides the results of the eighth underwater television on the ‘Porcupine Bank Nephrops grounds’ ICES assessment area; Functional Unit 16. The survey was multi-disciplinary in nature collecting UWTV and other ecosystem data. In total 65 UWTV stations were successfully completed in a randomised 6 nautical mile isometric grid covering the full spatial extent of the stock. The mean burrow density observed in 2020, adjusted for edge effect, was 0.17 burrows/m². The final krigged abundance estimate was 1264 million burrows with a CV of 4% and an estimated stock area of 7,130 km2. The 2020 abundance estimate was 25% higher than in 2019. Using the 2020 estimate of abundance and updated stock data implies catches between 2653 and 3290 tonnes in 2021 that correspond to the F ranges in the EU multiannual plan for Western Waters (assuming that all catch is landed). Four species of sea-pen; Virgularia mirabilis, Funiculina quadrangularis, Pennatula phosphorea and the deepwater sea-pen Kophobelemnon stelliferum were observed during the survey. Trawl marks were also observed on 22% of the stations surveyed.
    URI
    http://hdl.handle.net/10793/1655
    Citation
    Aristegui, M., Blaszkowski, M., Doyle, J., Hehir, I., Lynch, D., Ryan, G. and Lordan, C. (2020). Porcupine Bank Nephrops Grounds (FU16) 2020 UWTV Survey Report and catch scenarios for 2021. Marine Institute UWTV Survey report.
    Collections
    Nephrops Under Water TV Surveys

    entitlement

     
    DSpace software (copyright © 2002 - 2025)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.