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dc.contributor.authorDoyle, Jennifer
dc.contributor.authorRyan, G
dc.contributor.authorAristegui, M.
dc.contributor.authorFitzgerald, Ross
dc.contributor.authorTully, D.
dc.contributor.authorO’Brien, S.
dc.contributor.authorWhite, Jonathan
dc.contributor.authorSullivan, M.
dc.contributor.authorLynch, Deirdre
dc.contributor.authorMcAuliffe, M
dc.date.accessioned2021-11-17T13:46:22Z
dc.date.available2021-11-17T13:46:22Z
dc.date.issued2021
dc.identifier.citationDoyle, J., Ryan, G., Aristegui, M., Fitzgerald, R., Tully, D., O’Brien, S., White, J., Sullivan, M., Lynch, D., & McAuliffe, M. (2021). FU19 Nephrops Grounds 2021 UWTV Survey Report and catch scenarios for 2022. Marine Institute UWTV Survey report. Galway, Irelanden_US
dc.identifier.urihttp://hdl.handle.net/10793/1722
dc.description.abstractThis report provides the main results of the twelfth underwater television survey of the various Nephrops patches in Functional Unit 19. The survey was multi-disciplinary in nature collecting UWTV and other ecosystem data. In 2021 a total 42 UWTV stations were successfully completed. The mean density estimates varied considerably across the different patches. The 2021 raised abundance estimate was a 16% decrease from the 2020 estimate and at 270 million burrows is below the MSY Btrigger reference point (430 million). Using the 2021 estimate of abundance and updated stock data implies catch in 2022 that correspond to the F ranges in the EU multi annual plan for Western Waters are between 363 and 407 tonnes (assuming that discard rates and fishery selection patterns do not change from the average of 2018–2020). One species of sea pen were observed; Virgularia mirabilis which has been observed on previous surveys of FU19. Trawl marks were observed at 19% 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.subjectstock assessmenten_US
dc.subjectgeostatisticsen_US
dc.subjectunderwater television (UWTV)en_US
dc.subjectbenthosen_US
dc.subjectCV21013en_US
dc.subjectCV21014en_US
dc.titleFU19 Nephrops Grounds 2021 UWTV Survey Report and catch scenarios for 2022en_US
dc.title.alternativeCV21013_CV21014en_US
dc.typeTechnical Reporten_US
refterms.dateFOA2021-11-17T13:46:22Z


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