{"id":94,"date":"2001-09-05T21:40:51","date_gmt":"2001-09-05T19:40:51","guid":{"rendered":"http:\/\/wgl-demo.net\/atlets\/?p=94"},"modified":"2023-03-09T00:41:15","modified_gmt":"2023-03-08T23:41:15","slug":"por-que-las-ballenas-salivan-en-el-estuario-maritimo-de-saint-laurent-sos-grand-bleu-2001","status":"publish","type":"post","link":"https:\/\/julienmarchal.fr\/es\/pourquoi-les-baleines-salimentent-elles-dans-lestuaire-maritime-du-saint-laurent-sos-grand-bleu-2001\/","title":{"rendered":"Por qu\u00e9 se alimentan las ballenas en el estuario del San Lorenzo (SOS Grand Bleu 2001)"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"94\" class=\"elementor elementor-94\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-55058b87 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"55058b87\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9f2927d\" data-id=\"9f2927d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b62266f elementor-widget elementor-widget-image\" data-id=\"b62266f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"152\" height=\"103\" src=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada9.jpg\" class=\"attachment-full size-full wp-image-3979\" alt=\"\" srcset=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada9.jpg 152w, https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada9-150x103.jpg 150w\" sizes=\"(max-width: 152px) 100vw, 152px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1cce2a1d\" data-id=\"1cce2a1d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-754c8acd elementor-widget elementor-widget-text-editor\" data-id=\"754c8acd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin-bottom: 16px;\"><span class=\"dropcap-bg primary\">J<\/span>Viaj\u00e9 a Quebec, a orillas del r\u00edo San Lorenzo, para estudiar la ac\u00fastica de las belugas (Delphinapterus leucas), fotografiar y entender a las ballenas, y ayudar y conocer el Groupe de Recherche et d'Etude des Mammif\u00e8res Marins (GREMM) de Tadoussac.<br \/>Desde las observaciones en el mar o en la costa, nos asombra ver tantas ballenas en Tadoussac, Les Escouminns o Grandes-Bergeronnes. Algunas incluso pueden verse aliment\u00e1ndose en la superficie, un momento m\u00e1gico.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-212bdbcb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"212bdbcb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-79fb9d1c\" data-id=\"79fb9d1c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-50a485f6 elementor-widget elementor-widget-spacer\" data-id=\"50a485f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-624f6065 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"624f6065\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7d29922a\" data-id=\"7d29922a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ae7fac elementor-widget elementor-widget-text-editor\" data-id=\"3ae7fac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Todo ello se debe a la oceanograf\u00eda y las corrientes o mareas y vientos, que favorecen una producci\u00f3n biol\u00f3gica regional excepcional. Un lugar \u00fanico situado en un parque marino creado en 1998 y que responde a una demanda cada vez mayor de avistamiento de cet\u00e1ceos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-0dee2a8\" data-id=\"0dee2a8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-15dae83 elementor-widget elementor-widget-image\" data-id=\"15dae83\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"199\" src=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada1.jpg\" class=\"attachment-full size-full wp-image-3968\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-78938838 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"78938838\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3003338\" data-id=\"3003338\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-df9285e elementor-widget elementor-widget-image\" data-id=\"df9285e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"250\" height=\"376\" src=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada2.jpg\" class=\"attachment-large size-large wp-image-3969\" alt=\"\" srcset=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada2.jpg 250w, https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada2-199x300.jpg 199w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-72cc90b5\" data-id=\"72cc90b5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a516837 elementor-widget elementor-widget-heading\" data-id=\"a516837\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Las tres corrientes y la marea :<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19c354e0 elementor-widget elementor-widget-text-editor\" data-id=\"19c354e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El r\u00edo San Lorenzo tiene 1.600 kil\u00f3metros de longitud, nace en los grandes lagos americanos y desemboca en el Atl\u00e1ntico:<\/p><p>Hay tres estratos de agua en el r\u00edo:<\/p><ul><li>la capa superficial<\/li><li>la capa media fr\u00eda<\/li><li>la capa profunda<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a68196c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a68196c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bc6a199\" data-id=\"bc6a199\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8634d73 elementor-widget elementor-widget-text-editor\" data-id=\"8634d73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El agua salada del Atl\u00e1ntico Norte asciende por la corriente Laurentiana en profundidad, y el agua dulce superficial se hunde en el Golfo y en el oc\u00e9ano. Estas dos capas se opondr\u00e1n entre s\u00ed. \u00a0<\/p><p>Las mareas creadas por la atracci\u00f3n de la luna y el sol sobre el oc\u00e9ano desempe\u00f1an un papel decisivo en el suministro de agua de mar salada y fr\u00eda, rica en nutrientes. Cuanto m\u00e1s estrecha sea la localidad, m\u00e1s alta e importante ser\u00e1 la marea entrante. Puede variar de tres a ocho metros.<\/p><p>En Tadoussac, el fiordo de Saguenay aporta su aire fresco al estuario del San Lorenzo. Todos estos factores, junto con el viento, desempe\u00f1an un papel esencial en la alimentaci\u00f3n de las ballenas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dafd1da elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dafd1da\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9ba1786\" data-id=\"9ba1786\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c3fb88f elementor-widget elementor-widget-heading\" data-id=\"c3fb88f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Plancton :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab37f10 elementor-widget elementor-widget-text-editor\" data-id=\"ab37f10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Para entender la alimentaci\u00f3n de las ballenas, necesitamos saber qu\u00e9 les interesa.<\/p><p>El plancton es la base de la cadena alimentaria marina y es fundamental para la cadena alimentaria.<\/p><p>Se compone de muchos organismos planct\u00f3nicos, como el fitoplancton y el zooplancton. Su esperanza de vida es de unos dos a\u00f1os.<\/p><p>El primero est\u00e1 formado por algas planct\u00f3nicas que servir\u00e1n de alimento al zooplancton herb\u00edvoro y luego carn\u00edvoro. Este \u00faltimo necesita energ\u00eda solar para la fotos\u00edntesis y nitr\u00f3geno que se encuentra en forma de amonio y nitrato.<\/p><p>El krill, o euf\u00e1sido, es un zooplancton al que, como a todos los dem\u00e1s, no le gusta la luz. Durante el d\u00eda, permanece en la profundidad para esconderse de los depredadores y por la noche sube a la superficie para alimentarse de fitoplancton. Cuando alcanzan la edad adulta, se desplazan verticalmente y evitan estar a demasiada profundidad o demasiado cerca de la superficie. Las larvas, en cambio, ser\u00e1n arrastradas por la corriente.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-53f0608 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53f0608\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5129164\" data-id=\"5129164\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c1b7e0f elementor-widget elementor-widget-text-editor\" data-id=\"c1b7e0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Las ballenas barbadas se alimentan principalmente de krill. Una ballena azul (Balaenoptera musculus), que puede llegar a medir treinta metros y pesar cien toneladas, se llena de alimento antes del invierno y come de tres a cuatro toneladas de krill al d\u00eda.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-492b2c6\" data-id=\"492b2c6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-664c7a0 elementor-widget elementor-widget-image\" data-id=\"664c7a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"243\" height=\"164\" src=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada6.jpg\" class=\"attachment-large size-large wp-image-3973\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a2efa12 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a2efa12\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d63a7c4\" data-id=\"d63a7c4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ca6e303 elementor-widget elementor-widget-heading\" data-id=\"ca6e303\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">El dique y la trampa de plancton :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14c361b elementor-widget elementor-widget-text-editor\" data-id=\"14c361b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El Canal Laurentino tiene entre trescientos y quinientos metros de profundidad. Al final del canal hay una gran concentraci\u00f3n de plancton que corre contra las laderas y sale a la superficie. Una masa que puede tener varios kil\u00f3metros de largo y cien metros de espesor.<\/p><p>La ladera tiene una topograf\u00eda escarpada, cerca de \u00cele Rouge y del fiordo de Saguenay, frente a Tadoussac.<\/p><p>En esta abundancia de euf\u00e1sidos, las hembras pondr\u00e1n huevos y los adultos llegar\u00e1n al final de su viaje. Hay un constante ir y venir entre la capa superficial que empuja a las larvas de krill hacia el Golfo y la capa intermedia que las trae de vuelta.<\/p><p>Los restos org\u00e1nicos se depositan continuamente en el fondo, pero las corrientes ascendentes, acompa\u00f1adas de la marea alta, los hacen subir y se mezclan con el agua dulce. Este es el color salobre que se encuentra rico en nutrientes.<\/p><p>Se trata de una fuente de alimento necesaria para el krill, pero atrapado en un callej\u00f3n sin salida, ser\u00e1 empujado a la superficie.<\/p><p>Adem\u00e1s, se producir\u00e1 un efecto de bombeo que empujar\u00e1 la mezcla hacia el Golfo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b6da1d5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b6da1d5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8d2dda8\" data-id=\"8d2dda8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-46e3439 elementor-widget elementor-widget-heading\" data-id=\"46e3439\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">El fest\u00edn de las ballenas :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04bc59c elementor-widget elementor-widget-text-editor\" data-id=\"04bc59c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Las ballenas eligen venir a Tadoussac por esta concentraci\u00f3n de alimento.<\/p><p>Algunos se alimentan de capel\u00e1n, lanz\u00f3n o arenque y cop\u00e9podos, seg\u00fan las mareas y el agua fr\u00eda. Todos estos peces pel\u00e1gicos comen en el mismo lugar.<\/p><p>Las ballenas suelen encontrarse en la cabecera del Canal Laurentino, a unos cien metros de profundidad.<\/p><p>Las ballenas tur\u00edsticas conocen el lugar, \u00a1donde pueden encontrarse hasta cincuenta embarcaciones en la misma zona!<\/p><p>Engordan en un callej\u00f3n sin salida de plancton, lo que les proporciona una densidad espec\u00edfica, sin tener que esforzarse ni gastar demasiada energ\u00eda. Hemos observado que permanecen m\u00e1s tiempo en la superficie por la noche para filtrar el krill que sube de las profundidades. Pero sigue habiendo dudas sobre la dieta de las ballenas porque pasan el noventa por ciento de su tiempo bajo el agua.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-9e1ce06 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9e1ce06\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a0eeabd\" data-id=\"a0eeabd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1bfffe7 elementor-widget elementor-widget-text-editor\" data-id=\"1bfffe7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Adem\u00e1s del beluga (Delphinapterus leucas), que permanece en el San Lorenzo todo el a\u00f1o, el rorcual com\u00fan (Balaenoptera physalus), la ballena azul (Balaenoptera musculus) y el rorcual aliblanco (Balaenoptera acutorostrata) son visitantes habituales de la zona y se alimentan antes de emigrar en invierno.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a15bbb0\" data-id=\"a15bbb0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b83d6ac elementor-widget elementor-widget-image\" data-id=\"b83d6ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"351\" height=\"229\" src=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada3.jpg\" class=\"attachment-large size-large wp-image-3970\" alt=\"\" srcset=\"https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada3.jpg 351w, https:\/\/julienmarchal.fr\/wp-content\/uploads\/2023\/01\/canada3-300x196.jpg 300w\" sizes=\"(max-width: 351px) 100vw, 351px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ae6b3e elementor-widget elementor-widget-text-editor\" data-id=\"6ae6b3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Especies como la ballena jorobada (Megaptera novaeangliae) y el cachalote (Physeter macrocephalus) se ven pocas veces. Todas las dem\u00e1s son excepcionales en la regi\u00f3n de Tadoussac, Les Escoumins o Grandes Bergeronnes, salvo en el golfo de San Lorenzo.\u00a0<\/p><p>Las ballenas llevan a\u00f1os volviendo al mismo lugar, conocen muy bien la topograf\u00eda y localizan la masa de plancton. Siguen las mareas, la temperatura y la salinidad y se comunican entre ellas.<\/p><p>Todos estos fen\u00f3menos geogr\u00e1ficos afectan a la frecuencia de las ballenas en un mismo lugar de un a\u00f1o a otro. Las personas responsables que estudian las ballenas y su oceanograf\u00eda hacen todo lo posible por protegerlas, vigilando el calentamiento global, la navegaci\u00f3n y la contaminaci\u00f3n.<\/p><p>Esta regi\u00f3n es un importante punto de reuni\u00f3n de ballenas. Disfrutemos vi\u00e9ndolas mientras podamos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8d04867 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8d04867\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-db98aeb\" data-id=\"db98aeb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8316ac2 elementor-widget elementor-widget-heading\" data-id=\"8316ac2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">BIBLIOGRAF\u00cdA : <\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-026c141 elementor-widget elementor-widget-text-editor\" data-id=\"026c141\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>(1) Taller regional sobre actividades de observaci\u00f3n de mam\u00edferos marinos en el mar, res\u00famenes de proyectos de investigaci\u00f3n cient\u00edfica, Parque Marino de Saguenay-Saint-Laurent, mayo de 1998.<\/p><p>(2) Whales of the St. Lawrence, Research and Education: A Passport to the 21st Century, G.R.E.M.M., 1998.<\/p><p>(3) Bolet\u00edn \"Le Souffleur\" desde 1989, G.R.E.M.M.<\/p><p>(4) Marchand Caroline, Simard Yvan y Gratton Yves, Concentration of capelin (Mallotus villosus) in tidal upwelling, fronts at the head of the Laurentian Channel in the St.Lawrence estuary, NRC\/CNRC, vol.56, n\u00famero 10, 1999.<\/p><p>(5) Simard Yvan y Lavoie Diane, The rich krill aggregation of the Saguenay - ST.Lawrence Marine Park: hydroacoustic and geostatiscal biomass estimates, structure, variability, and significance for whales, NRC\/CNRC, vol.56, n\u00famero 7, 1999.<\/p><p>(6) Simard Yvan, Comment la mer nourrit-elle les baleines \u00e0 Tadoussac ou Le pourquoi oc\u00e9anographique de la visite estivale des rorquals dans l'estuaire maritime du St.Laurent, \u00e0 la t\u00eate du chenal Laurentien (Tadoussac, Les Escoumins, Grandes-Bergeronnes), l'Euskarien, Les Sciences de la Mer, p 33 \u00e0 38, \u00e9t\u00e9 1994.<\/p><p>(7) Rossignol Anne, L'Estuaire maritime et le golfe du Saint - Laurent, Carnet oc\u00e9anographique, INRS \/ Oc\u00e9anologie, 1998.<\/p><p>(8) Michaud Robert, Rencontre des baleines du Saint - Laurent, G.R.E.M.M, 1993.<\/p><p>(9) P\u00e1ginas web del G.R.E.M.M: http\/\/www.gremm.org y www.baleinesendirect.net o www.whles-online.net<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1a2d17b7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1a2d17b7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-67732cfe\" data-id=\"67732cfe\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c94f7ae elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2c94f7ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<blockquote><p><span style=\"font-size: medium;\">Art\u00edculo de dos p\u00e1ginas en Plan\u00e8te Mer n\u00b029 <\/span><\/p><p><span style=\"font-size: large;\">S.O.S Big Blue - Enero - Febrero - Marzo 2001<\/span><\/p><p><cite>por Julien Marchal<\/cite><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Viaj\u00e9 a Quebec, a orillas del r\u00edo San Lorenzo, para estudiar la ac\u00fastica de las belugas (Delphinapterus leucas), fotografiar y entender a las ballenas, y ayudar y conocer el Groupe de Recherche et d'Etude des Mammif\u00e8res Marins (GREMM) de Tadoussac.<\/p>","protected":false},"author":1,"featured_media":5945,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-94","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-publies-sur-les-cetaces"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>JULIEN MARCHAL &#8212; Pourquoi les baleines s&#039;alimentent-elles dans l&#039;estuaire maritime du Saint Laurent (SOS Grand Bleu 2001)<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/julienmarchal.fr\/es\/por-que-las-ballenas-salivan-en-el-estuario-maritimo-de-saint-laurent-sos-grand-bleu-2001\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta 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