{"id":33729,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/materia-organica-disuelta-en-agua-de-mar-analisis-distribucion-e-implicaciones-biogeoquimicas\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"materia-organica-disuelta-en-agua-de-mar-analisis-distribucion-e-implicaciones-biogeoquimicas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/materia-organica-disuelta-en-agua-de-mar-analisis-distribucion-e-implicaciones-biogeoquimicas\/","title":{"rendered":"Materia organica disuelta en agua de mar: analisis, distribucion e implicaciones biogeoquimicas."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Doval Gonzalez M. Dolores <\/strong><\/h2>\n<p>Se ha realizado la puesta a punto y adecuaci\u00f3n de la metodolog\u00eda anal\u00edtica para la determinaci\u00f3n de nitr\u00f3geno y carbono org\u00e1nico disuelto (nod y cod) en agua de mar.  las mejoras introducidas en el sistema de oxidaci\u00f3n catal\u00edtica a alta temperatura del analizador shimadzu toc-5000, permiten incrementar la reproducibilidad del an\u00e1lisis de muestras (1%) y la obtenci\u00f3n de un blanco bajo y estable (&lt;10 mum-c) la actualizaci\u00f3n del m\u00e9todo kjeldahl modificado (fraga, 1959) permite mejorar la precisi\u00f3n de los valores de nod.  se ha estudiado la distribuci\u00f3n de la materia org\u00e1nica disuelta (mod) en distintos ecosistemas, tanto a escala local: sistema de afloramiento ib\u00e9rico (r\u00eda de vigo), sistema oligotr\u00f3fico (mar mediterr\u00e1neo) y ecosistema ant\u00e1rtico (estrechos de brandsfield y gerlache), como a escala de cuenca oce\u00e1nica: sureste atl\u00e1ntico. La distribuci\u00f3n de la mod est\u00e1 condicionada tanto por procesos biol\u00f3gicos como f\u00edsicos, que condicionan una acumulaci\u00f3n de mod en la capa superficial. El exceso medio observado de cod es similar en todos los ecosistemas (30-40% del cod total determinado en superficie). Sin embargo la velocidad de producci\u00f3n de la mod es muy diferente: del orden de d\u00edas en la r\u00eda de vigo y el ecosistema ant\u00e1rtico y del orden de meses e incluso a\u00f1os en el mar mediterr\u00e1neo y el sureste atl\u00e1ntico.  se ha observado una concentraci\u00f3n de mod baja y constante a profundidades superiores a los 500m, que podemos considerar refractaria o inerte al comparar los tiempos de residencia de estas aguas (10 2-3 a\u00f1os) con las aguas superficiales (d\u00edas). Las concentraciones refractarias de cod encontradas en los diferentes ecosistemas fueron: ne atl\u00e1ntico: 50 mum, mar mediterr\u00e1neo: 49 mum, ecosistema ant\u00e1rtico: 44 mum y sureste atl\u00e1ntico: 55 mum. Esta diferencia observada en el contenido de cod de las aguas profundas puede estar relacionado con la edad aparente del c de las masas de agua.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Materia organica disuelta en agua de mar: analisis, distribucion e implicaciones biogeoquimicas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Materia organica disuelta en agua de mar: analisis, distribucion e implicaciones biogeoquimicas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Doval Gonzalez M. Dolores <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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>Felix Fernandez Perez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Fernando Fraga Rodriguez <\/li>\n<li>Mar\u00eda Estrada Mirayes (vocal)<\/li>\n<li>Abelardo Gomez Parra (vocal)<\/li>\n<li>Ramiro Varela Bembenuto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Doval Gonzalez M. Dolores Se ha realizado la puesta a punto y adecuaci\u00f3n de la metodolog\u00eda anal\u00edtica [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[27,228,1563,977],"tags":[3124,91751,91752,21531,91753,91754],"class_list":["post-33729","post","type-post","status-publish","format-standard","hentry","category-ciencias-de-la-tierra-y-del-espacio","category-oceanografia","category-oceanografia-quimica","category-santiago-de-compostela","tag-abelardo-gomez-parra","tag-doval-gonzalez-m-dolores","tag-felix-fernandez-perez","tag-fernando-fraga-rodriguez","tag-maria-estrada-mirayes","tag-ramiro-varela-bembenuto"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/33729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=33729"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/33729\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=33729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=33729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=33729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}