{"id":88037,"date":"2026-04-24T16:43:22","date_gmt":"2026-04-24T20:43:22","guid":{"rendered":"https:\/\/www.mundoacuicola.cl\/new\/?p=88037"},"modified":"2026-04-24T17:26:54","modified_gmt":"2026-04-24T21:26:54","slug":"melanosis-el-error-de-us-312-millones-que-la-ciencia-ya-descifro","status":"publish","type":"post","link":"https:\/\/www.mundoacuicola.cl\/new\/melanosis-el-error-de-us-312-millones-que-la-ciencia-ya-descifro\/","title":{"rendered":"Melanosis: El Error de US$ 312 Millones que la Ciencia ya Descifr\u00f3"},"content":{"rendered":"<div class=\"\" data-turn-id-container=\"request-69cd7f39-3948-83e9-a0d0-c8282da103f0-48\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69cd7f39-3948-83e9-a0d0-c8282da103f0-48\" data-testid=\"conversation-turn-341\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"305294d7-332e-494a-b126-188fd24d4b72\" data-message-model-slug=\"gpt-5-3\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\">\n<p data-start=\"0\" data-end=\"689\" data-is-last-node=\"\" data-is-only-node=\"\"><em>En esta columna, Axel Paulsen, director de Biocambio, aborda uno de los problemas de mayor impacto econ\u00f3mico y productivo para la salmonicultura: la melanosis focal. A partir de evidencia reciente sobre hipoxia tisular, necrosis grasa y senescencia celular, plantea que esta condici\u00f3n ya no puede entenderse como una patolog\u00eda de causa desconocida, sino como el resultado de procesos biol\u00f3gicos identificables y prevenibles. Desde esa perspectiva, propone reemplazar estrategias reactivas basadas en agresi\u00f3n qu\u00edmica por un enfoque de equilibrio biol\u00f3gico que permita reducir p\u00e9rdidas, mejorar el bienestar animal y fortalecer la rentabilidad del sector. A continuaci\u00f3n, el texto completo:<\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<h3><b>Introducci\u00f3n: El Fin de los Mitos Industriales<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Durante d\u00e9cadas, la <\/span><b>Melanosis Focal (MFC)<\/b><span style=\"font-weight: 400;\"> fue clasificada como una patolog\u00eda idiop\u00e1tica (de causa desconocida). Bajo este vac\u00edo de conocimiento, la industria oper\u00f3 bajo teor\u00edas que hoy la ciencia ha logrado descartar o recontextualizar:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mitos Superados:<\/b><span style=\"font-weight: 400;\"> Inicialmente se atribuy\u00f3 exclusivamente a la vacunaci\u00f3n con adyuvantes oleosos, traumatismos mec\u00e1nicos aislados o factores gen\u00e9ticos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La Realidad Cient\u00edfica:<\/b><span style=\"font-weight: 400;\"> La melanosis es el estadio terminal de un proceso de <\/span><b>necrosis grasa muscular<\/b><span style=\"font-weight: 400;\"> gatillado por fallas en la homeostasis del ox\u00edgeno (hipoxia).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Magnitud del Problema:<\/b><span style=\"font-weight: 400;\"> Seg\u00fan datos de <\/span><b>Sernapesca<\/b><span style=\"font-weight: 400;\">, esta condici\u00f3n afecta actualmente al <\/span><b>26,2%<\/b><span style=\"font-weight: 400;\"> de la producci\u00f3n. En Chile, la prevalencia reportada es del <\/span><b>19%<\/b><span style=\"font-weight: 400;\"> en Salm\u00f3n del Atl\u00e1ntico, alcanzando su mayor complejidad hacia el final del ciclo productivo.<\/span><\/li>\n<\/ul>\n<h2><b>1. El Motor Bioqu\u00edmico: Hipoxia, Necrosis Grasa y Senescencia<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">La investigaci\u00f3n mediante transcript\u00f3mica espacial ha confirmado que la melanosis es el resultado de una \u00abtormenta molecular\u00bb:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>V\u00eda HIF-1 e Hipoxia:<\/b><span style=\"font-weight: 400;\"> La falta de ox\u00edgeno activa el sensor molecular HIF-1. Esta hipoxia local induce la <\/span><b>necrosis grasa<\/b><span style=\"font-weight: 400;\"> (esteatonecrosis) de los adipocitos abundantes en los mioseptos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pseudoquistes:<\/b><span style=\"font-weight: 400;\"> La muerte celular libera lipasas que forman pseudoquistes lip\u00eddicos e inflamaci\u00f3n granulomatosa cr\u00f3nica.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>El Hallazgo de 2026 (Senescencia Celular):<\/b><span style=\"font-weight: 400;\"> Se ha identificado que las c\u00e9lulas en la lesi\u00f3n entran en un estado de <\/span><b>senescencia<\/b><span style=\"font-weight: 400;\">, donde dejan de dividirse pero secretan sustancias proinflamatorias (SASP) que da\u00f1an el tejido vecino, explicando por qu\u00e9 la mancha persiste y se agrava con el tiempo.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Melanizaci\u00f3n Defensiva:<\/b><span style=\"font-weight: 400;\"> Los melano-macr\u00f3fagos sintetizan <\/span><b>eumelanina<\/b><span style=\"font-weight: 400;\"> localmente para neutralizar el da\u00f1o oxidativo y actuar como filtro qu\u00edmico.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<h2><b>2. Causas Cr\u00edticas de Hipoxia Tisular y Agravantes<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">La hipoxia local es frecuentemente un subproducto de manejos operativos y deficiencias de infraestructura:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hipoxia Operativa:<\/b><span style=\"font-weight: 400;\"> La reducci\u00f3n deliberada de caudales y niveles de agua para optimizar ba\u00f1os qu\u00edmicos (<\/span><b>Formalina, Bronopol, Cloramina T, etc<\/b><span style=\"font-weight: 400;\">) somete al tejido a un estr\u00e9s an\u00f3xico que dispara la v\u00eda HIF-1.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Fallas de Infraestructura:<\/b><span style=\"font-weight: 400;\"> Cortes de energ\u00eda, colapsos en sistemas de bombeo o saturaci\u00f3n de filtros por s\u00f3lidos suspendidos interrumpen el aporte vital de O2.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Trauma y Salud Sist\u00e9mica:<\/b><span style=\"font-weight: 400;\"> Golpes en la jaula, manejo excesivo o da\u00f1o muscular por pat\u00f3genos como el <\/span><b>SRS<\/b><span style=\"font-weight: 400;\"> y el virus <\/span><b>PRV-1<\/b><span style=\"font-weight: 400;\"> act\u00faan como desencadenantes que agravan la severidad de la inflamaci\u00f3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vacunaci\u00f3n Ineficiente:<\/b><span style=\"font-weight: 400;\"> Casos de vacunas mal aplicadas o con adyuvantes que no logran ser metabolizados generan una reacci\u00f3n de cuerpo extra\u00f1o persistente.<\/span><\/li>\n<\/ul>\n<h3><b>3. BioEscudo Activo: Estabilidad Biol\u00f3gica vs. Agresi\u00f3n Qu\u00edmica<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">La tecnolog\u00eda de <\/span><b>BioCambio<\/b><span style=\"font-weight: 400;\">, respaldada por <\/span><b>Korin<\/b><span style=\"font-weight: 400;\"> (30 a\u00f1os de experiencia), introduce una soluci\u00f3n regenerativa, aunque con l\u00edmites t\u00e9cnicos claros:<\/span><\/p>\n<p><b>Capacidades de Mitigaci\u00f3n<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Exclusi\u00f3n Competitiva (QPS):<\/b><span style=\"font-weight: 400;\"> Coloniza el sistema con microorganismos que desplazan pat\u00f3genos naturalmente, reduciendo dr\u00e1sticamente la necesidad de ba\u00f1os agresivos y el estr\u00e9s por hipoxia operativa.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Prevenci\u00f3n de la Cronicidad:<\/b><span style=\"font-weight: 400;\"> Al evitar la inflamaci\u00f3n aguda inicial, se impide que las c\u00e9lulas entren en el estado de senescencia que perpet\u00faa la melanosis.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Optimizaci\u00f3n del Entorno:<\/b><span style=\"font-weight: 400;\"> La degradaci\u00f3n biol\u00f3gica de materia org\u00e1nica mejora la claridad del agua y reduce la necesidad de limpiezas mec\u00e1nicas de estanques.<\/span><\/li>\n<\/ul>\n<h3><b>Limitaciones T\u00e9cnicas (Claridad para el Productor)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">El BioEscudo es una herramienta de mitigaci\u00f3n de riesgos biol\u00f3gicos y operativos, pero <\/span><b>no elimina todas las causas<\/b><span style=\"font-weight: 400;\"> de la melanosis:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>No evita<\/b><span style=\"font-weight: 400;\"> la hipoxia causada por fallas mec\u00e1nicas de infraestructura o cortes de energ\u00eda.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>No previene<\/b><span style=\"font-weight: 400;\"> microtraumas f\u00edsicos por golpes accidentales, depredadores o manejo brusco durante la cosecha.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>No corrige<\/b><span style=\"font-weight: 400;\"> desequilibrios nutricionales (exceso de grasa en dieta) ni factores gen\u00e9ticos inherentes a la especie o ploid\u00eda.<\/span><\/li>\n<\/ul>\n<h3><b>Conclusi\u00f3n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">BioCambio interrumpe la secuencia patol\u00f3gica: <\/span><b>Estr\u00e9s\/Hipoxia &gt; Necrosis Grasa &gt; Senescencia &gt; Melanosis<\/b><span style=\"font-weight: 400;\">. Al sustituir la agresi\u00f3n qu\u00edmica por equilibrio biol\u00f3gico, proporcionamos la herramienta m\u00e1s robusta para rescatar los <\/span><b>US$ 312 millones<\/b><span style=\"font-weight: 400;\"> que la industria pierde anualmente, transformando la integridad del pez en rentabilidad neta superior.<\/span><\/p>\n<p><b>Validaci\u00f3n T\u00e9cnica:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ganadores del Premio Nacional de Sustentabilidad 2025.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Operaci\u00f3n autorizada por <\/span><b>DIRECTEMAR<\/b><span style=\"font-weight: 400;\"> y <\/span><b>SAG<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sustentado en Bj\u00f8rgen et al. (2025)y el estudio de <\/span><b>Salmofood (2026)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Axel Paulsen, director de Biocambio, analiza c\u00f3mo la evidencia cient\u00edfica ha permitido comprender el origen de la melanosis focal en salm\u00f3nidos, vincul\u00e1ndola a procesos de hipoxia, necrosis grasa y senescencia celular, y plantea alternativas biol\u00f3gicas para reducir una condici\u00f3n que hoy afecta a m\u00e1s del 26% de la producci\u00f3n.<\/p>\n","protected":false},"author":10,"featured_media":88040,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[398],"tags":[1261,143,28643,28181,122,2907,7024,184,2273,197],"class_list":["post-88037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-titular","tag-acuicola","tag-acuicultura","tag-axel-paulsen","tag-biocambio","tag-industria-acuicola","tag-industria-salmonera","tag-melanosis","tag-salmon","tag-salmon-chileno","tag-salmonicultura"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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