Show simple item record

dc.contributor.authorDoyle, J.
dc.contributor.authorLordan, C.
dc.contributor.authorO'Cuaig, M.
dc.contributor.authorHannify, O.
dc.contributor.authorMurphy, Á.
dc.contributor.authorSheridan, M.
dc.contributor.authorVila, Y.
dc.date.accessioned2014-10-28T16:11:45Z
dc.date.available2014-10-28T16:11:45Z
dc.date.issued2014-10
dc.identifier.citationDoyle, 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.urihttp://hdl.handle.net/10793/988
dc.description.abstractThis 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.isoenen_GB
dc.publisherMarine Instituteen_GB
dc.relation.ispartofseriesVersion 2;
dc.subjectNephrops norvegicusen_GB
dc.subjectPorcupine Banken_GB
dc.subjectstock assessmenten_GB
dc.subjectgeostatisticsen_GB
dc.subjectunderwater television (UWTV)en_GB
dc.subjectbenthosen_GB
dc.subjectCV14009en
dc.titlePorcupine Bank Nephrops Grounds (FU16) 2014 UWTV Survey Report and catch options for 2015en_GB
dc.title.alternativeCV14009en
dc.typeTechnical Reporten_GB
refterms.dateFOA2018-01-12T02:46:56Z


Files in this item

Thumbnail
Name:
Porcupine Bank Nephrops Grounds ...
Size:
2.339Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record