{"id":129537,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/ciclos-de-vida-y-estrategias-reproductivas-de-la-trucha-comun-salmo-trutta-l\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"ciclos-de-vida-y-estrategias-reproductivas-de-la-trucha-comun-salmo-trutta-l","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/ciclos-de-vida-y-estrategias-reproductivas-de-la-trucha-comun-salmo-trutta-l\/","title":{"rendered":"Ciclos de vida y estrategias reproductivas de la trucha comun (salmo trutta l.)."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Toledo Magadan M. Mar <\/strong><\/h2>\n<p>El importante desnivel altitudinal en la cuenca del narcea (entre 90 y 1300 m de altitud) asociado a gradientes termicos e hidrogeograficos de dicho rio, permite la expresion de una plasticidad extrema en la poblacion de trucha comun (salmo trutta l.) En crecimiento, en edad de primera maduracion y en parametros reproductores de los individuos. En los tramos altos de la cuenca, las truchas desarrollan tallas peque\u00f1as y crecimiento lento, las hembras maduran a edades tardias y desarrollan huevos de tama\u00f1o reducido:  mientras que en los tramos bajos, el crecimiento es mas rapido, anticipan la edad de primera maduracion y realizan fuertes inversiones en reproduccion. Para igual edad, en el tramo bajo de la cuenca las truchas son mayores que las de monta\u00f1a; sin embargo, estas ultimas presentan ciclos de vida mas longevos (registrando hasta 11 a\u00f1os de edad). Esta variabilidad en crecimiento y edad de maduracion refleja una estrecha relacion entre los costes reproductores de los individuos (supervivencia de adultos y probabilidad de futuras fecundidades) y las diferentes tacticas reproductivas encontradas a lo largo del rio (iteoparidad\/semelparidad), dependiendo del sexo o del ciclo de vida desarrollado: en la zona baja coexisten ciclos mixtos de trucha residente y trucha anadroma o reo, descendiendo los esguines en la primavera hasta el mar, a zonas proximas de la desembocadura del rio nalon. La mayor parte (85%) de los esguines son truchas de 2 o 2+ a\u00f1os de edad y el resto de 3 a\u00f1os. Los reproductores anadromos que ascienden por el rio son en su mayor parte hembras de 1 o 2 a\u00f1os de vida en el mar.  se han descrito ciclos iteroparos o con reproducciones multiples en subpoblaciones sedentarias de la zona de monta\u00f1a y entre los reos, se caracterizan por presentar bajos valores de fecundidad relativa de las hembras y 2 o mas edades de reproduccion. El comportamiento migrador tiene un importante componente genetico en las poblac<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Ciclos de vida y estrategias reproductivas de la trucha comun (salmo trutta l.).<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Ciclos de vida y estrategias reproductivas de la trucha comun (salmo trutta l.). <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Toledo Magadan M. Mar <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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>Florentino Bra\u00f1a Vigil<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Adolfo De Sostoa Fernandez <\/li>\n<li>Pedro Rincon Cinca (vocal)<\/li>\n<li>Benigno Elvira Payan (vocal)<\/li>\n<li>Carlos Fernandez Delgado (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Toledo Magadan M. Mar El importante desnivel altitudinal en la cuenca del narcea (entre 90 y 1300 [&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":[494,35,37068,8846,2600,372,226],"tags":[1349,1352,1350,2707,242917,242916],"class_list":["post-129537","post","type-post","status-publish","format-standard","hentry","category-ciencias-agrarias","category-ciencias-de-la-vida","category-dinamica-de-poblaciones","category-oviedo","category-peces-y-fauna-silvestre","category-vertebrados","category-zoologia","tag-adolfo-de-sostoa-fernandez","tag-benigno-elvira-payan","tag-carlos-fernandez-delgado","tag-florentino-brana-vigil","tag-pedro-rincon-cinca","tag-toledo-magadan-m-mar"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/129537","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=129537"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/129537\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=129537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=129537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=129537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}