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dc.contributor.authorWhite, J.
dc.contributor.authorAristegui, M.
dc.contributor.authorBlaszkowski, M.
dc.contributor.authorFee, D.
dc.contributor.authorO'Connor, S.
dc.contributor.authorPower, J.
dc.contributor.authorNotaro, D. A.
dc.contributor.authorO’ Brien, S.
dc.contributor.authorDoyle, J.
dc.date.accessioned2019-11-04T14:24:54Z
dc.date.available2019-11-04T14:24:54Z
dc.date.issued2019
dc.identifier.citationWhite, J., Aristegui, M., Blaszkowski, M., Fee, D., O’Connor, S., Power, J., Notaro, D., O’ Brien, and Doyle, J., (2019). The Labadie, Jones and Cockburn Banks Nephrops Grounds (FU20-21) 2019 UWTV Survey Report and catch scenarios for 2020. Marine Institute UWTV Survey report.en_US
dc.identifier.urihttp://hdl.handle.net/10793/1430
dc.description.abstractThis report provides the main results of the 2019 underwater television survey on the ‘Labadie, Jones and Cockburn Banks’ ICES assessment area; Functional Unit 20-21. The 2019 survey was multi-disciplinary in nature collecting UWTV, and other ecosystem data. A total of 95 UWTV stations were completed at 6 nm intervals over a randomised isometric grid design. The mean burrow density was 0.06 burrows/m2 compared with 0.27 burrows/m2 in 2018. The 2019 geostatistical abundance estimate was 617 million, a 77% decrease on the abundance for 2018, with a CV of 5% which is well below the upper limit of 20% recommended by SGNEPS 2012. Low densities were observed throughout the ground. Using the 2019 estimate of abundance and updated stock data implies catch in 2020 that correspond to the F ranges in the EU multi annual plan for Western Waters are between 1131 and 1150 tonnes (assuming that discard rates and fishery selection patterns do not change from the average of 2016–2018). One species of sea-pen (Virgularia mirabilis) were recorded as present at the stations surveyed. Trawl marks were observed at 32% of the stations surveyed.en_US
dc.language.isoenen_US
dc.publisherMarine Instituteen_US
dc.relation.ispartofseriesMarine Institute UWTV Survey report;
dc.subjectNephrops norvegicusen_US
dc.subjectCeltic Seaen_US
dc.subjectstock assessmenten_US
dc.subjectgeostatisticsen_US
dc.subjectunderwater television (UWTV)en_US
dc.subjectCTDen_US
dc.subjectbenthosen_US
dc.titleThe Labadie, Jones and Cockburn Banks Nephrops Grounds (FU20-21) 2019 UWTV Survey Report and catch scenarios for 2020.en_US
dc.typeTechnical Reporten_US
refterms.dateFOA2019-11-04T14:24:55Z


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