{"id":61041,"date":"2018-03-09T22:48:51","date_gmt":"2018-03-09T22:48:51","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/rimos-de-actividad-motora-comportamiento-alimentario-e-influencia-de-la-melatonina-exogena-en-peces-teleosteos\/"},"modified":"2018-03-09T22:48:51","modified_gmt":"2018-03-09T22:48:51","slug":"rimos-de-actividad-motora-comportamiento-alimentario-e-influencia-de-la-melatonina-exogena-en-peces-teleosteos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/zoologia\/rimos-de-actividad-motora-comportamiento-alimentario-e-influencia-de-la-melatonina-exogena-en-peces-teleosteos\/","title":{"rendered":"Rimos de actividad motora, comportamiento alimentario e influencia de la melatonina ex\u00f3gena en peces tele\u00f3steos"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Herrero Ram\u00f3n Mar\u00eda Jes\u00fas <\/strong><\/h2>\n<p>El objetivo general de esta tesis doctoral ha sido el de profundizar en los conocimientos sobre ritmos biol\u00f3gicos y comportamiento alimentario de tres especies de peces tele\u00f3steos de inter\u00e9s en acuicultura; una especie dulceacu\u00edcola, la tenca (tinca tinca); una marina, la lubina (dicentrarchus labrax) y una an\u00e1droma del norte de europa, la trucha alpina (salvelinus alpinus). con este fin se han investigado los ritmos biol\u00f3gicos de peces tele\u00f3steos y la influencia de factores bi\u00f3ticos y abi\u00f3ticos en su sincronizaci\u00f3n. Se han analizado los ritmos de actividad locomotora y alimentaria, as\u00ed como el car\u00e1cter end\u00f3geno y\/o ex\u00f3geno de los mismos, y la influencia de los sincronizadores: luz y alimento (abi\u00f3tico y bi\u00f3tico, respectivamente), utilizando como modelo la tenca. A su vez, se ha profundizado en el comportamiento individual de truchas alpinas mantenidas en grupo, mediante una nueva metodolog\u00eda que permite estudiar los ritmos de demanda voluntaria de alimento y la autoselecci\u00f3n dietaria de los individuos. Asimismo, se ha analizado la influencia de los niveles end\u00f3genos de melatonina, modificados mediante la administraci\u00f3n de melatonina ex\u00f3gena y de su amino\u00e1cido precursor (tript\u00f3fano) en la dieta, sobre la concentraci\u00f3n de cortisol y el ritmo de actividad locomotora en la lubina.  los resultados obtenidos mostraron que la tenca presenta un ritmo diario de actividad locomotora y alimentaria estrictamente nocturno. La fase activa de la tenca est\u00e1 controlada directamente por la duraci\u00f3n del fotoperiodo y su conducta estrictamente nocturna persiste aun bajo condiciones de luz muy tenue (0,3 lux). Los ritmos de actividad motora se mantienen bajo condiciones de curso libre, revelando la existencia de un marcapasos circadiano encarrilado por la luz. Adem\u00e1s, en condiciones de oscuridad constante la alimentaci\u00f3n regular sincroniza la actividad motora (mostrando actividad anticipatoria), lo que indica la existencia de un marcapasos encarrilado por<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Rimos de actividad motora, comportamiento alimentario e influencia de la melatonina ex\u00f3gena en peces tele\u00f3steos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Rimos de actividad motora, comportamiento alimentario e influencia de la melatonina ex\u00f3gena en peces tele\u00f3steos <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Herrero Ram\u00f3n Mar\u00eda Jes\u00fas <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/10\/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>Juan  Antonio Madrid Perez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: salvador Zamora navarro <\/li>\n<li> M\u00edguez miramontes  Jes\u00fas Manuel (vocal)<\/li>\n<li>Francisco Javier Martinez lopez (vocal)<\/li>\n<li>Juan  Miguel Mancera romero (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Herrero Ram\u00f3n Mar\u00eda Jes\u00fas El objetivo general de esta tesis doctoral ha sido el de profundizar en [&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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