The broad-scale distribution and abundance of Scyphomedusae in Irish waters

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dc.contributor.advisor Doyle, Thomas K.
dc.contributor.advisor McAllen, Robert
dc.contributor.advisor Davenport, John Bastian, Thomas Jean Daniel 2011-11-28T14:42:55Z 2011-11-28T14:42:55Z 2011-11 2011-11-11
dc.identifier.citation BASTIAN, T. 2011. The Broad-Scale Distribution and Abundance of Scyphomedusae in Irish Waters. PhD Thesis, University College Cork. en
dc.description.abstract Scyphomedusae are receiving increasing recognition as key components of marine ecosystems. However, information on their distribution and abundance beyond coastal waters is generally lacking. Organising access to such data is critical to effectively transpose findings from laboratory, mesocosm and small scale studies to the scale of ecological processes. These data are also required to identify the risks of detrimental impacts of jellyfish blooms on human activities. In Ireland, such risks raise concerns among the public, but foremost amongst the professionals of the aquaculture and fishing sectors. The present work looked at the opportunity to get access to new information on the distribution of jellyfish around Ireland mostly by using existing infrastructures and programmes. The analysis of bycatch data collected during the Irish groundfish surveys provided new insights into the distribution of Pelagia noctiluca over an area >160 000 km2, a scale never reached before in a region of the Northeast Atlantic (140 sampling stations). Similarly, 4 years of data collected during the Irish Sea juvenile gadoid fish survey provided the first spatially, explicit, information on the abundance of Aurelia aurita and Cyanea spp. (Cyanea capillata and Cyanea lamarckii) throughout the Irish Sea (> 200 sampling events). In addition, the use of ships of opportunity allowed repeated samplings (N = 37) of an >100 km long transect between Dublin (Ireland) and Holyhead (Wales, UK), therefore providing two years of seasonal monitoring of the occurrence of scyphomedusae in that region. Finally, in order to inform the movements of C. capillata in an area where many negative interactions with bathers occur, the horizontal and vertical movements of 5 individual C. capillata were investigated through acoustic tracking. en
dc.description.sponsorship Ireland-Wales Programme 2007-2013 INTERREG IVA. (EcoJel project) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.relation.uri en
dc.rights © 2011, Thomas Bastian en
dc.rights.uri en
dc.subject Scyphozoan jellyfish distribution en
dc.subject Analysis of fish surveys bycatch en
dc.subject Seasonal and interannual monitoring en
dc.subject Acoustic tracking en
dc.subject Spatial and temporal dynamics of marine foodwebs en
dc.subject.lcsh Jellyfishes en
dc.subject.lcsh Scyphozoa en
dc.title The broad-scale distribution and abundance of Scyphomedusae in Irish waters en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD (Science) en
dc.internal.availability Full text available en
dc.description.version Accepted Version en
dc.contributor.funder European Regional Development Fund en
dc.description.status Not peer reviewed en Coastal and Marine Research Centre en Environmental Research Institute en Biological, Earth & Environmental Sciences en

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