{"id":114626,"date":"2013-12-09T00:00:00","date_gmt":"2013-12-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/metal-toxicity-and-bioaccumulation-in-tubifex-tubifex-ma%c2%bcller-annelida-exposed-to-river-sediments-from-northern-spain\/"},"modified":"2013-12-09T00:00:00","modified_gmt":"2013-12-09T00:00:00","slug":"metal-toxicity-and-bioaccumulation-in-tubifex-tubifex-ma%c2%bcller-annelida-exposed-to-river-sediments-from-northern-spain","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/invertebrados\/metal-toxicity-and-bioaccumulation-in-tubifex-tubifex-ma%c2%bcller-annelida-exposed-to-river-sediments-from-northern-spain\/","title":{"rendered":"Metal toxicity and bioaccumulation in tubifex tubifex (m\u00c1\u00bcller) (annelida) exposed to river sediments from northern spain"},"content":{"rendered":"

Tesis doctoral de Leire Mendez Fernandez <\/strong><\/h2>\n

Los sedimentos forman parte del medio acu\u00e1tico, constituyen el h\u00e1bitat los organismos bent\u00f3nicos, proporcionando refugio y alimento. A su vez, los sedimentos act\u00faan como sumidero de una gran parte de los contaminantes que se incorporan por diferentes v\u00edas al medio fluvial, y son a su vez, fuente de dichas substancias para la columna de agua. La entrada en vigor de la directiva marco de la comunidad europea (directiva 2000\/60\/ce) para la pol\u00edtica de aguas y la directiva 76\/464\/cee, obliga a los estados miembros a efectuar controles peri\u00f3dicos de los sedimentos de los r\u00edos. En la presente tesis doctoral, se ha llevado a cabo el estudio de la toxicidad de sedimento fluviales pertenecientes a las cuencas hidrogr\u00e1ficas del ebro y cant\u00e1bricas, mediante el bioensayo de toxicidad cr\u00f3nica (28 d\u00edas) con el oligoqueto acu\u00e1tico tubifex tubifex.Tras el periodo de estudio, t. Tubifex ha demostrado ser un organismo adecuado para la identificaci\u00f3n de la presencia de alteraciones en sedimentos con diferente grado de contaminaci\u00f3n. El estudio de la toxicidad basada en an\u00e1lisis multivariante de las variables de toxicidad del bioensayo cr\u00f3nico con t. Tubifex, y siguiendo la filosof\u00eda del reference condition approach (reynoldson et al., 1997) mediante elipses de probabilidad (rodr\u00edguez et al., 2011), ha permitido la evaluaci\u00f3n de los sedimentos en tres clases de toxicidad: no t\u00f3xicos, potencialmente t\u00f3xicos y t\u00f3xicos. Mediante este m\u00e9todo se han controlado los errores estad\u00edsticos tipo i y ii, es decir, la proabilidad de clasificar sitios no t\u00f3xicos como t\u00f3xicos y la probabilidad de clasificar sitios t\u00f3xicos como no t\u00f3xicos, respectivamente. Controlas los errores tipo i y ii est\u00e1 directamente relacionado con costos socio-econ\u00f3micos y medioambientales. As\u00ed mismo, se ha realizado el estudio de la bioacumulaci\u00f3n de metales en t. Tubifex tras la exposici\u00f3n cr\u00f3nica a los sedimentos fluviales. Esto ha permitido derivar valores cr\u00edticos de bioacumulaci\u00f3n para 7 metales (cd, cu, cr, hg, ni, pb y zn) y un metaloide (as) en base a las condiciones de referencia para t. Tubifex. De este trabajo tambi\u00e9n se infiere la dificultad para la derivaci\u00f3n de criterios de bioacumulaci\u00f3n para la fauna aqu\u00e1tica, y la necesidad de realizar m\u00e1s estudios con la inclusi\u00f3n de m\u00e1s puntos de referencia y diferentes grupos taxon\u00f3micos<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abMetal toxicity and bioaccumulation in tubifex tubifex (m\u00c1\u00bcller) (annelida) exposed to river sediments from northern spain<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Metal toxicity and bioaccumulation in tubifex tubifex (m\u00c1\u00bcller) (annelida) exposed to river sediments from northern spain <\/li>\n
  • Autor:<\/strong>\u00a0 Leire Mendez Fernandez <\/li>\n
  • Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 12\/09\/2013<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Maite Martinez Madrid<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: trefor b. Reynoldson — <\/li>\n
        • miren bego\u00f1e Urrutia barandika (vocal)<\/li>\n
        • j. angel Irabien gulias (vocal)<\/li>\n
        • Javier Franco san sebastian (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Leire Mendez Fernandez Los sedimentos forman parte del medio acu\u00e1tico, constituyen el h\u00e1bitat los organismos bent\u00f3nicos, proporcionando […]<\/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":[1667,1332,367,12909],"tags":[2652,13197,227135,227136,227138,227137],"class_list":["post-114626","post","type-post","status-publish","format-standard","hentry","category-calidad-de-las-aguas","category-control-de-la-contaminacion-del-agua","category-invertebrados","category-pais-vasco-euskal-herriko-unibertsitatea","tag-j-angel-irabien-gulias","tag-javier-franco-san-sebastian","tag-leire-mendez-fernandez","tag-maite-Martinez-madrid","tag-miren-begone-urrutia-barandika","tag-trefor-b-reynoldson"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/114626","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=114626"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/114626\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=114626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=114626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=114626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}