The Labadie, Jones and Cockburn Banks Nephrops Grounds (FU2021) 2020 UWTV Survey Report and catch scenarios for 2021.
|dc.identifier.citation||Aristegui, M., Blaszkowski, M., Doyle, J., Fee, D., O’Connor, S. and White, J., (2020). The Labadie, Jones and Cockburn Banks Nephrops Grounds (FU2021) 2020 UWTV Survey Report and catch scenarios for 2021. Marine Institute UWTV Survey report.||en_US|
|dc.description.abstract||This report provides the main results of the 2020 underwater television survey on the ‘Labadie, Jones and Cockburn Banks’ ICES assessment area; Functional Unit 2021. The 2020 survey was multi-disciplinary in nature collecting UWTV, and other ecosystem data. A total of 97 UWTV stations were completed at 6nm intervals over a randomised isometric grid design. The mean burrow density was 0.102 burrows/m2 compared with 0.06 burrows/m2 in 2019. The 2020 geostatistical abundance estimate was 1020 million, a 65% increase on the abundance from 2019, with a CV of 5%, which is well below the upper limit of 20% recommended by SGNEPS 2012. Low to medium densities were observed throughout the ground. Using the 2020 estimate of abundance and updated stock data implies catch in 2021 that correspond to the F ranges in the EU multi annual plan for Western Waters are between 1682 and 1710 tonnes (assuming that discard rates and fishery selection patterns do not change from the average of 2017–2019). One species of sea-pen (Virgularia mirabilis) were recorded as present at the stations surveyed. Trawl marks were observed at 36% of the stations surveyed.||en_US|
|dc.relation.ispartofseries||Marine Institute UWTV Survey report;|
|dc.subject||underwater television (UWTV)||en_US|
|dc.title||The Labadie, Jones and Cockburn Banks Nephrops Grounds (FU2021) 2020 UWTV Survey Report and catch scenarios for 2021.||en_US|