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dc.contributor.authorO'Donnell, C.
dc.contributor.authorO'Malley, M.
dc.contributor.authorLynch, D.
dc.contributor.authorLyons, K.
dc.contributor.authorKeogh, N.
dc.contributor.authorO’Driscoll, D.
dc.date.accessioned2018-01-17T14:36:18Z
dc.date.available2018-01-17T14:36:18Z
dc.date.issued2017
dc.identifier.citationO’Donnell, C., O'Malley, M., Lynch, D., Lyons, K., Keogh, N. and O'Driscoll, D. (2017). Celtic Sea Herring Acoustic Survey Cruise Report 2017, 15-04 November 2017. FSS Survey Series: 2017/04. Marine Instituteen_US
dc.identifier.urihttp://hdl.handle.net/10793/1338
dc.description.abstractIn the southwest of Ireland and the Celtic Sea (ICES Divisions VIIaS, g & j), herring are an important commercial species to the pelagic and polyvalent fleet. For a period in the 1970s and1980s, larval surveys were conducted for herring in this area. However, since 1989, acoustic surveys have been carried out, and currently are the only tuning indices available for this stock. In the Celtic Sea and VIIj, herring acoustic surveys have been carried out since 1989. Since 2004 the survey has been fixed in October and carried out onboard the RV Celtic Explorer. The geographical confines of the annual 21 day survey have been modified in recent years to include areas to the south of the main winter spawning grounds in an effort to identify the whereabouts of winter spawning fish before the annual inshore spawning migration. Spatial resolution of acoustic transects has been increased over the entire south coast survey area. The acoustic component of the survey has been further complemented since 2004 by detailed hydrographic, marine mammal and seabird surveys.en_US
dc.language.isoenen_US
dc.publisherMarine Instituteen_US
dc.relation.ispartofseriesFSS Survey Series;2017/04
dc.subjectFSS Survey Seriesen_US
dc.subjectAcoustic Surveyen_US
dc.subjectCeltic Sea herringen_US
dc.subjectCeltic seaen_US
dc.titleCeltic Sea Herring Acoustic Survey Cruise Report 2017, 15-04 November 2017en_US
dc.typeTechnical Reporten_US
refterms.dateFOA2018-01-17T14:36:18Z


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