{"id":87542,"date":"2026-04-02T14:12:33","date_gmt":"2026-04-02T18:12:33","guid":{"rendered":"https:\/\/www.mundoacuicola.cl\/new\/?p=87542"},"modified":"2026-04-06T12:26:51","modified_gmt":"2026-04-06T16:26:51","slug":"investigadores-chilenos-revelan-la-causa-biologica-tras-las-manchas-en-el-salmon","status":"publish","type":"post","link":"https:\/\/www.mundoacuicola.cl\/new\/investigadores-chilenos-revelan-la-causa-biologica-tras-las-manchas-en-el-salmon\/","title":{"rendered":"Investigadores chilenos revelan la causa biol\u00f3gica tras las manchas en el salm\u00f3n"},"content":{"rendered":"<p>Las manchas en el salm\u00f3n, conocidas como melanosis focal, generan un impacto econ\u00f3mico significativo tanto en la industria chilena como a nivel mundial, ya que provocan una disminuci\u00f3n en la calidad comercial del producto. Esto obliga a vender los filetes a menor precio o a someterlos a procesos adicionales como el recorte, lo que reduce el rendimiento y aumenta los costos de producci\u00f3n. En Chile, se ha observado que aproximadamente entre un 19% y un 22% de los filetes presentan este problema, lo que evidencia su alta prevalencia y relevancia para la industria.<\/p>\n<p>En este sentido, un grupo de investigadores chilenos descubrieron que las manchas oscuras que aparecen en el m\u00fasculo del salm\u00f3n Atl\u00e1ntico \u2014un problema creciente en la acuicultura\u2014 no son simples defectos est\u00e9ticos, sino el resultado de procesos biol\u00f3gicos complejos y est\u00e1n relacionadas con estr\u00e9s oxidativo, inflamaci\u00f3n cr\u00f3nica y muerte celular programada (apoptosis). El estudio desarrollado por investigadores de la Pontificia Universidad Cat\u00f3lica de Chile, de la Universidad de Chile, de la Universidad San Sebasti\u00e1n, de la Universidad Andr\u00e9s Bello y del Centro INCAR demostr\u00f3 que ciertas mol\u00e9culas (como el TNF-\u03b1) desencadenan la producci\u00f3n de especies reactivas de ox\u00edgeno, da\u00f1ando las c\u00e9lulas musculares y favoreciendo la acumulaci\u00f3n de pigmentos. Esto no solo afecta la calidad del producto que llega al consumidor, sino que tambi\u00e9n genera p\u00e9rdidas econ\u00f3micas para la industria salmonera.<\/p>\n<p>\u201cFactores como el estr\u00e9s oxidativo y la inflamaci\u00f3n juegan un rol central en la salud de los peces. La melanosis est\u00e1 asociada a un proceso de inflamaci\u00f3n cr\u00f3nica en el m\u00fasculo, acompa\u00f1ado de un aumento en el estr\u00e9s oxidativo que provoca da\u00f1o celular, activaci\u00f3n del sistema inmune y acumulaci\u00f3n de melanina. Estos eventos conducen a la degradaci\u00f3n del tejido muscular y a la aparici\u00f3n visible de las manchas\u201d, expres\u00f3 el Acad\u00e9mico de la Universidad Andr\u00e9s Bello e Investigador Principal de INCAR\u00b2, Dr. Juan Antonio Vald\u00e9s.<\/p>\n<p>La investigaci\u00f3n abre la puerta a dise\u00f1ar estrategias de mitigaci\u00f3n que permitan reducir la aparici\u00f3n de estas lesiones y mejorar la salud de los peces, con beneficios tanto para productores como para consumidores. \u201cPara prevenir o reducir la aparici\u00f3n de estas manchas, es fundamental implementar estrategias que apunten a mejorar las condiciones de cultivo, como reducir el estr\u00e9s de los peces mediante un manejo adecuado, optimizar la nutrici\u00f3n para evitar deficiencias, y controlar los procesos inflamatorios asociados a condiciones sanitarias. Asimismo, la evidencia sugiere que las etapas tempranas del desarrollo son cr\u00edticas, por lo que intervenir en esos momentos podr\u00eda ser clave para prevenir la melanosis. En este contexto, el desarrollo de herramientas moleculares tambi\u00e9n podr\u00eda permitir identificar peces con mayor riesgo de desarrollar estas lesiones\u201d, expres\u00f3 el Dr. Vald\u00e9s.<\/p>\n<p>Los hallazgos contribuyen significativamente al desarrollo de pr\u00e1cticas m\u00e1s sostenibles en la producci\u00f3n de salm\u00f3n, ya que permiten mejorar el bienestar animal, reducir p\u00e9rdidas productivas y optimizar el uso de recursos. \u201cAl disminuir la incidencia de melanosis, se reduce el desperdicio de producto y se mejora la eficiencia del sistema productivo, lo que favorece una acuicultura m\u00e1s sostenible tanto desde el punto de vista econ\u00f3mico como ambiental\u201d, recalc\u00f3 el Dr. Juan Antonio Vald\u00e9s.<\/p>\n<p>Revisa el estudio \u201cMolecular characterization of melanised focal changes in Atlantic salmon (Salmo salar) skeletal muscle reveals involvement of oxidative stress, inflammation, and apoptosis\u201d, de Ra\u00fal Cort\u00e9s, Rodrigo Zuloaga, Camila Godoy-Diaz, Luis Urdaneta, Jos\u00e9 Luis Galaz, Liane Bassini, Sebasti\u00e1n Escobar-Aguirre y Juan Antonio Vald\u00e9s\u00a0<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0044848626001584?via%3Dihub\" target=\"_blank\" rel=\"noopener\">aqu\u00ed.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un estudio de investigadores nacionales identific\u00f3 que la melanosis focal en el salm\u00f3n Atl\u00e1ntico est\u00e1 vinculada al estr\u00e9s oxidativo, la inflamaci\u00f3n cr\u00f3nica y la apoptosis celular. El hallazgo explica el origen de estas lesiones que afectan hasta un 22% de los filetes en Chile, generando p\u00e9rdidas millonarias para la industria, y abre la puerta a nuevas estrategias de prevenci\u00f3n que mejoren la salud de los peces y la sostenibilidad de la acuicultura.<\/p>\n","protected":false},"author":10,"featured_media":87544,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[1261,143,3522,122,2907,7024,184,2273,137,197],"class_list":["post-87542","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salmonicultura","tag-acuicola","tag-acuicultura","tag-centro-incar","tag-industria-acuicola","tag-industria-salmonera","tag-melanosis","tag-salmon","tag-salmon-chileno","tag-salmones","tag-salmonicultura"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Investigadores chilenos revelan la causa biol\u00f3gica tras las manchas en el salm\u00f3n - 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