Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar

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dc.contributor.advisorAnsorge, Isabelle Janeen_ZA
dc.contributor.advisorBackeberg, Bjorn Christophen_ZA
dc.contributor.advisorRoberts, Michael Jen_ZA
dc.contributor.authorBraby, Lauraen_ZA
dc.date.accessioned2014-11-05T03:58:14Z
dc.date.available2014-11-05T03:58:14Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractSeveral species of marine organisms occurring off the southern African coast have been found to be identical to those occurring in the Madagascan coastal water although the reason for this is unknown. It has been proposed that eddies act as a vector of transport for planktonic larvae from the Madagascar island to the southern African east coast. In this study it is shown that eddies spawned off southern Madagascar entrain chlorophyll-a rich coastal waters into their periphery. This is indicative of the mechanism whereby organisms could become entrained in eddies. Approximately one eddy per year, usually cyclonic, interacts with the southern Madagascan coast, then from its origin crosses the southern Mozambique Channel and arrives at the African coast where it dissipates. By tracking eddies and combining their trajectories with drifter data and satellite remote sensing observations of ocean colour, it is shown that chlorophyll-a rich waters are entrained within the eddies, and these waters are mostly conserved during their passage across the channel. This study suggests that biota may be transported from Madagascar to Africa in eddies, providing further evidence that eddies are potentially a viable mechanism for the transport of organisms across the southern Mozambique Channel.en_ZA
dc.identifier.apacitationBraby, L. (2014). <i>Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Oceanography. Retrieved from http://hdl.handle.net/11427/9213en_ZA
dc.identifier.chicagocitationBraby, Laura. <i>"Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Oceanography, 2014. http://hdl.handle.net/11427/9213en_ZA
dc.identifier.citationBraby, L. 2014. Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Braby, Laura AB - Several species of marine organisms occurring off the southern African coast have been found to be identical to those occurring in the Madagascan coastal water although the reason for this is unknown. It has been proposed that eddies act as a vector of transport for planktonic larvae from the Madagascar island to the southern African east coast. In this study it is shown that eddies spawned off southern Madagascar entrain chlorophyll-a rich coastal waters into their periphery. This is indicative of the mechanism whereby organisms could become entrained in eddies. Approximately one eddy per year, usually cyclonic, interacts with the southern Madagascan coast, then from its origin crosses the southern Mozambique Channel and arrives at the African coast where it dissipates. By tracking eddies and combining their trajectories with drifter data and satellite remote sensing observations of ocean colour, it is shown that chlorophyll-a rich waters are entrained within the eddies, and these waters are mostly conserved during their passage across the channel. This study suggests that biota may be transported from Madagascar to Africa in eddies, providing further evidence that eddies are potentially a viable mechanism for the transport of organisms across the southern Mozambique Channel. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar TI - Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar UR - http://hdl.handle.net/11427/9213 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9213
dc.identifier.vancouvercitationBraby L. Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Oceanography, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9213en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Oceanographyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherOcean and Climate Dynamicsen_ZA
dc.titleDynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascaren_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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