{"id":1852,"date":"2023-05-01T12:08:33","date_gmt":"2023-05-01T16:08:33","guid":{"rendered":"https:\/\/www.glft.org\/?p=1852"},"modified":"2023-05-01T12:08:33","modified_gmt":"2023-05-01T16:08:33","slug":"glft-funded-researchers-describe-the-diets-of-predatory-fish","status":"publish","type":"post","link":"https:\/\/www.glft.org\/es\/glft-funded-researchers-describe-the-diets-of-predatory-fish\/","title":{"rendered":"Investigadores financiados por GLFT describen las dietas de los peces depredadores"},"content":{"rendered":"<div id=\"fws_69df5fba085b7\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\r\n<div class=\"wpb_text_column wpb_content_element  vc_custom_1682344756108\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h2>Dado que la s\u00e1balo est\u00e1 pr\u00e1cticamente fuera del men\u00fa en el lago Huron, los depredadores se vuelcan a otras especies<\/h2>\n<p>Los lagos Michigan y Huron albergan peces depredadores importantes para los pescadores y las econom\u00edas locales, incluidas varias especies de trucha y salm\u00f3n. El equilibrio entre el consumo de depredadores y el suministro de presas es fundamental para mantener una pesca saludable y sostenible para estas especies, y los administradores trabajan para ayudar a las pesquer\u00edas a lograr este equilibrio en el ecosistema en constante cambio de los Grandes Lagos. A medida que la abundancia de algunas especies de presas disminuye y otras aumenta, las dietas de los depredadores pueden cambiar, lo que da como resultado datos obsoletos utilizados en los modelos que informan sobre la repoblaci\u00f3n y otras decisiones de gesti\u00f3n.<\/p>\n<p>Este proyecto de investigaci\u00f3n cuantific\u00f3 las dietas de varias especies de depredadores en los lagos Michigan y Huron, incluido un examen de la variaci\u00f3n espacial y temporal dentro de las especies y brind\u00f3 nuevos conocimientos sobre las redes alimentarias acu\u00e1ticas en los Grandes Lagos. Un equipo de investigadores de la Universidad Estatal de Michigan, dirigido por el Dr. Brian Roth, se asoci\u00f3 con el Servicio de Pesca y Vida Silvestre de los Estados Unidos, el Servicio Geol\u00f3gico de los Estados Unidos, varias tribus y el Departamento de Recursos Naturales de Michigan para recolectar miles de est\u00f3magos de peces depredadores y analizar su contenido, lo que proporcion\u00f3 nuevos datos sobre las preferencias de presas de estos peces y c\u00f3mo var\u00edan en el espacio y el tiempo.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<div id=\"fws_69df5fba08df7\" data-midnight=\"\" data-column-margin=\"default\" class=\"wpb_row vc_row-fluid vc_row inner_row\"  style=\"\"><div class=\"row-bg-wrap\"> <div class=\"row-bg\" ><\/div> <\/div><div class=\"row_col_wrap_12_inner col span_12  left\">\n\t<div  class=\"vc_col-sm-6 wpb_column column_container vc_column_container col child_column no-extra-padding inherit_tablet inherit_phone\"   data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"nectar_image_with_hotspots\" data-stlye=\"color_pulse\" data-hotspot-icon=\"plus_sign\" data-size=\"medium\" data-color=\"extra-color-3\" data-tooltip-func=\"hover\" data-tooltip_shadow=\"none\" data-animation=\"true\"><img loading=\"lazy\" decoding=\"async\" width=\"3750\" height=\"3182\" src=\"https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles.png\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles.png 3750w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles-300x255.png 300w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles-1024x869.png 1024w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles-768x652.png 768w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles-1536x1303.png 1536w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-mi-rainbowtrout-2019-nocircles-2048x1738.png 2048w\" sizes=\"auto, (max-width: 3750px) 100vw, 3750px\" \/><div class=\"nectar_hotspot_wrap\" style=\"top: 55.0182%; left: 44.3772%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">90% S\u00e1balo<\/div><\/div><\/div><div class=\"nectar_hotspot_wrap\" style=\"top: 52.4033%; left: 63.5401%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">9% Invertebrados<\/div><\/div><\/div><div class=\"nectar_hotspot_wrap\" style=\"top: 47.8865%; left: 32.476%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">1% otros peces<\/div><\/div><\/div><\/div>\n\t\t<\/div> \n\t<\/div>\n\t<\/div> \n\n\t<div  class=\"vc_col-sm-6 wpb_column column_container vc_column_container col child_column no-extra-padding inherit_tablet inherit_phone\"   data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"nectar_image_with_hotspots\" data-stlye=\"color_pulse\" data-hotspot-icon=\"plus_sign\" data-size=\"medium\" data-color=\"extra-color-3\" data-tooltip-func=\"hover\" data-tooltip_shadow=\"none\" data-animation=\"\"><img loading=\"lazy\" decoding=\"async\" width=\"3750\" height=\"3182\" src=\"https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles.png\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles.png 3750w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles-300x255.png 300w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles-1024x869.png 1024w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles-768x652.png 768w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles-1536x1303.png 1536w, https:\/\/www.glft.org\/wp-content\/uploads\/2023\/04\/April23RN_lake-huron-rainbow-trout-2019-nocircles-2048x1738.png 2048w\" sizes=\"auto, (max-width: 3750px) 100vw, 3750px\" \/><div class=\"nectar_hotspot_wrap\" style=\"top: 47.6488%; left: 61.1195%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">65% Invertebrados<\/div><\/div><\/div><div class=\"nectar_hotspot_wrap\" style=\"top: 51.2147%; left: 31.064%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">20% Fundido<\/div><\/div><\/div><div class=\"nectar_hotspot_wrap\" style=\"top: 58.8218%; left: 43.7721%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">10% Coregoninas<\/div><\/div><\/div><div class=\"nectar_hotspot_wrap\" style=\"top: 60.0104%; left: 61.3212%;\"><div class=\"nectar_hotspot\"><span><\/span><\/div><div class=\"nttip\" data-tooltip-position=\"top\"><div class=\"inner\">5% otros peces<\/div><\/div><\/div><\/div>\n\t\t<\/div> \n\t<\/div>\n\t<\/div> \n<\/div><\/div>\r\n<div class=\"wpb_text_column wpb_content_element  vc_custom_1682350001204\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h3>Principales hallazgos<\/h3>\n<ul>\n<li>Las dietas de los peces depredadores en el lago Huron eran m\u00e1s diversas que en el lago Michigan, probablemente debido al colapso de la poblaci\u00f3n de s\u00e1balos en el lago Huron en 2003. Si bien los s\u00e1balos a\u00fan constituyen una gran parte de las dietas del salm\u00f3n Chinook, los depredadores m\u00e1s generalistas, como la trucha de lago y la lucioperca, han aprovechado la creciente poblaci\u00f3n de gobios redondos en el lago Huron, as\u00ed como otras fuentes de presas.<\/li>\n<li>Las dietas de los depredadores en el lago Michigan estaban dominadas por s\u00e1balos, y la mayor\u00eda de los depredadores se alimentan de s\u00e1balos del mismo tama\u00f1o.<\/li>\n<li>Las dietas de la trucha de lago y la trucha arco\u00edris mostraron una variaci\u00f3n significativa de mes a mes que exhibi\u00f3 el mismo patr\u00f3n a lo largo de los a\u00f1os del estudio. Las dietas de la trucha de lago tambi\u00e9n variaron significativamente seg\u00fan el distrito estad\u00edstico (una subdivisi\u00f3n de un lago que se usa com\u00fanmente). Las dietas de otras especies no mostraron esta variaci\u00f3n espacial.<\/li>\n<\/ul>\n<h3>Resultados significativos para la investigaci\u00f3n<\/h3>\n<p>Esta investigaci\u00f3n, apoyada por GLFT, actualiz\u00f3 informaci\u00f3n importante sobre las dietas de los depredadores en dos de los Grandes Lagos. Una comparaci\u00f3n de las dietas del lago Michigan y del lago Hur\u00f3n ilustra el papel significativo de la s\u00e1balo en el primero, pero sugiere que la mayor\u00eda de las especies de depredadores pueden cambiar a otras especies de presa en ausencia de la s\u00e1balo. La continua dependencia del salm\u00f3n real de la s\u00e1balo indica que este importante depredador puede ser menos resistente al cambio ecol\u00f3gico que otros pisc\u00edvoros en los Grandes Lagos. Los resultados de esta investigaci\u00f3n se han utilizado en modelos que calculan los equilibrios depredador-presa, redefinen los modelos de poblaciones de trucha de lago en los lagos y ayudan en la toma de decisiones para la repoblaci\u00f3n.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n<div class=\"wpb_text_column wpb_content_element\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h2>M\u00e1s informaci\u00f3n<\/h2>\n<p>Si tiene preguntas, comun\u00edquese con el investigador principal, Brian Roth, PhD, al <a href=\"mailto:rothbri@msu.edu\">rothbri@msu.edu<\/a>.<\/p>\n<h2>Descargo de responsabilidad<\/h2>\n<p><em>Notas de investigaci\u00f3n <\/em>Incluye los resultados de los proyectos financiados por GLFT que contribuyen al conjunto de conocimientos cient\u00edficos sobre la pesca en los Grandes Lagos. Los hallazgos de los investigadores y los res\u00famenes de los resultados de las subvenciones no constituyen un respaldo ni una posici\u00f3n de GLFT y se proporcionan para aumentar la conciencia sobre los resultados del proyecto y proporcionar informaci\u00f3n relevante a los investigadores y a los administradores de la pesca.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Esta edici\u00f3n de Notas de investigaci\u00f3n destaca las contribuciones de investigaci\u00f3n del Dr. Brian Roth y su equipo sobre las dietas de los peces depredadores que recibieron el apoyo de GLFT.<\/p>","protected":false},"author":3,"featured_media":1857,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4],"tags":[],"class_list":{"0":"post-1852","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-research-notes"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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