Porcupine Bank Nephrops Grounds (FU16) 2014 UWTV Survey Report and catch options for 2015
dc.contributor.author | Doyle, J. | |
dc.contributor.author | Lordan, C. | |
dc.contributor.author | O'Cuaig, M. | |
dc.contributor.author | Hannify, O. | |
dc.contributor.author | Murphy, Á. | |
dc.contributor.author | Sheridan, M. | |
dc.contributor.author | Vila, Y. | |
dc.date.accessioned | 2014-10-28T16:11:45Z | |
dc.date.available | 2014-10-28T16:11:45Z | |
dc.date.issued | 2014-10 | |
dc.identifier.citation | Doyle, J., Lordan, C., O’Cuaig, M., Hannify, O., Murphy, A., Sheridan, M., and Vila, Y. 2014. Porcupine Bank Nephrops Grounds (FU16) 2014 UWTV Survey Report and catch options for 2015. Marine Institute UWTV Survey report. | en_GB |
dc.identifier.uri | http://hdl.handle.net/10793/988 | |
dc.description.abstract | This report provides the results of the third underwater television on the ‘Porcupine Bank Nephrops grounds’ ICES assessment area; Functional Unit 16. The survey was multi-disciplinary in nature collecting UWTV, CTD and other ecosystem data. In total 67 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 2014, adjusted for edge effect, was 0.10 burrows/m². The final krigged abundance estimate was 722 million burrows with a relative standard error of 3% and an estimated stock area of 7,108km2. The abundance estimate was 6% lower than in 2013. Landings options at various different fishing mortalities were calculated in line with the recommendations of WKNEPH 2013. Fishing at Fmsy in 2015 implies catches of 1,850 t which close to the 2014 catch limit. This is because of an increase in average mean weight of the landings. The three species of sea-pen; Virgularia mirabilis, Funiculina quadrangularis and Pennatula phosphorea, were all observed during the survey. Trawl marks were also observed on over half of the stations surveyed. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | Marine Institute | en_GB |
dc.relation.ispartofseries | Version 2; | |
dc.subject | Nephrops norvegicus | en_GB |
dc.subject | Porcupine Bank | en_GB |
dc.subject | stock assessment | en_GB |
dc.subject | geostatistics | en_GB |
dc.subject | underwater television (UWTV) | en_GB |
dc.subject | benthos | en_GB |
dc.subject | CV14009 | en |
dc.title | Porcupine Bank Nephrops Grounds (FU16) 2014 UWTV Survey Report and catch options for 2015 | en_GB |
dc.title.alternative | CV14009 | en |
dc.type | Technical Report | en_GB |
refterms.dateFOA | 2018-01-12T02:46:56Z |