{"id":60156,"date":"2018-03-09T22:48:00","date_gmt":"2018-03-09T22:48:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/productivity-history-of-the-nw-iberian-rias-and-shelf-from-the-late-holocene-to-present-the-interplay-of-upwelling-and-runoff-using-biogeochemical-and-biosiliceous-markers\/"},"modified":"2018-03-09T22:48:00","modified_gmt":"2018-03-09T22:48:00","slug":"productivity-history-of-the-nw-iberian-rias-and-shelf-from-the-late-holocene-to-present-the-interplay-of-upwelling-and-runoff-using-biogeochemical-and-biosiliceous-markers","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/oceanografia\/productivity-history-of-the-nw-iberian-rias-and-shelf-from-the-late-holocene-to-present-the-interplay-of-upwelling-and-runoff-using-biogeochemical-and-biosiliceous-markers\/","title":{"rendered":"Productivity history of the nw iberian rias and shelf from the late holocene to present. the interplay of upwelling and runoff using biogeochemical and biosiliceous markers"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Patricia Bernardez Rodriguez <\/strong><\/h2>\n<p>Este trabajo constituye una nueva aportaci\u00f3n al conocimiento de los patrones de producci\u00f3n primaria y su relaci\u00f3n con las condiciones oceanogr\u00e1ficas y su registro segmentario, como paso indispensable para la determinaci\u00f3n de cambios ambientales en el pasado en el margen noroccidental de la pen\u00ednsula ib\u00e9rica. As\u00ed, se ha investigado el sedimento reciente de diversas r\u00eda gallegas (vigo, pontevedra y ferrol) bas\u00e1ndose en el material biosil\u00edceo (diatomeas, fitolitos, quistes de cris\u00f3fitas, etc.) Y en su composici\u00f3n geoqu\u00edmica. Los resultados en el sedimento superficial han sido comparados con la evoluci\u00f3n estacional de las diatomeas presentes en la columna de agua y su paso al sedimento mediante el uso de trampas de sedimentos. La distribuci\u00f3n de \u00f3palo y la asociaci\u00f3n de diatomeas en el sedimento superficial se correlacionan con las condiciones hidrogr\u00e1ficas espec\u00edficas de cada medio, as\u00ed como con los patrones de producci\u00f3n primaria, de tal manera que pueden ser utilizadas como indicadores paleoecol\u00f3gicos. Los procesos principales que controlan el crecimiento y registro del material biosil\u00edceo son el afloramiento y la descarga fluvial. Tras el enterramiento, los factores diag\u00e9neticos controlan la preservaci\u00f3n y posterior aparici\u00f3n de la asociaci\u00f3n de diatomeas en el sedimento. se ha realizado una reconstrucci\u00f3n paleoclim\u00e1tica, paleoceanogr\u00e1fica y de paleoproductividad de un registro sedimentario holoceno de la plataforma continental gallega. Se persigue tambi\u00e9n a trav\u00e9s de una integraci\u00f3n de resultados y de los distintos an\u00e1lisis basados en ellos, lograr una interpretaci\u00f3n global que contenga diversos puntos de vista principalmente oceanogr\u00e1ficos y climatol\u00f3gicos. Este estudio ha permitido la identificaci\u00f3n de diversos per\u00edodos de mayor\/menor influencia terrestre y marina, as\u00ed como determinar las variaciones en la producci\u00f3n primaria dependientes de diversos procesos clim\u00e1tico-oceanogr\u00e1ficos. La influencia de factores antropog\u00e9nicos tambi\u00e9n ha sido reconocida en el registro.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Productivity history of the nw iberian rias and shelf from the late holocene to present. the interplay of upwelling and runoff using biogeochemical and biosiliceous markers<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Productivity history of the nw iberian rias and shelf from the late holocene to present. the interplay of upwelling and runoff using biogeochemical and biosiliceous markers <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Patricia Bernardez Rodriguez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Vigo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/07\/2007<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Guillermo Franc\u00e9s Pedraz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan Grimalt obrador <\/li>\n<li>fatima Abrantes (vocal)<\/li>\n<li>M\u00aa concei\u00ed\u00a7ao Freitas (vocal)<\/li>\n<li>roberto Bao casal (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Patricia Bernardez Rodriguez Este trabajo constituye una nueva aportaci\u00f3n al conocimiento de los patrones de producci\u00f3n primaria [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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