{"id":85942,"date":"2026-02-26T15:42:58","date_gmt":"2026-02-26T19:42:58","guid":{"rendered":"https:\/\/www.mundoacuicola.cl\/new\/?p=85942"},"modified":"2026-02-27T15:01:25","modified_gmt":"2026-02-27T19:01:25","slug":"estudio-analiza-impacto-de-truchas-y-peces-mosquito-sobre-peces-nativos-en-rios-del-pais","status":"publish","type":"post","link":"https:\/\/www.mundoacuicola.cl\/new\/estudio-analiza-impacto-de-truchas-y-peces-mosquito-sobre-peces-nativos-en-rios-del-pais\/","title":{"rendered":"Estudio analiza impacto de truchas y peces mosquito sobre peces nativos en r\u00edos del pa\u00eds"},"content":{"rendered":"<p>Una investigaci\u00f3n de la Universidad Austral de Chile (UACh), publicada en la revista cient\u00edfica <em><strong>Biological\u00a0Invasions<\/strong><\/em>, analiz\u00f3 r\u00edos de las cuencas de los r\u00edos Biob\u00edo e Imperial, comparando sectores con distinta intensidad de invasi\u00f3n biol\u00f3gica.<\/p>\n<p>Los resultados muestran que en r\u00edos m\u00e1s conservados y con menor presencia de especies ex\u00f3ticas, las interacciones entre peces nativos y par\u00e1sitos son m\u00e1s diversas, frecuentes y complejas, mientras que estas relaciones se empobrecen a medida que aumentan los peces invasores.<\/p>\n<p><em>\u201cEl\u00a0estudio\u00a0demuestra\u00a0que\u00a0los\u00a0par\u00e1sitos\u00a0no son un\u00a0elemento\u00a0ajeno\u00a0o\u00a0negativo\u00a0del\u00a0ecosistema,\u00a0sino\u00a0una\u00a0parte\u00a0natural de las redes\u00a0ecol\u00f3gicas\u00a0de\u00a0los\u00a0r\u00edos\u201d<\/em>,\u00a0explica\u00a0la\u00a0autora.<\/p>\n<p>En\u00a0sistemas\u00a0m\u00e1s\u00a0naturales,\u00a0estos\u00a0organismos\u00a0cumplen\u00a0un\u00a0rol\u00a0clave\u00a0en\u00a0el\u00a0equilibrio\u00a0ecol\u00f3gico,\u00a0participando\u00a0en\u00a0complejas\u00a0redes de\u00a0interacci\u00f3n\u00a0que\u00a0involucran\u00a0peces,\u00a0invertebrados\u00a0y\u00a0aves.<\/p>\n<p>Por su parte, el Dr. Konrad G\u00f3rski, coautor de este trabajo, indic\u00f3 que uno de los hallazgos centrales es que, aunque las especies invasoras representan una fracci\u00f3n relativamente menor de los peces presentes, su sola presencia tiene un efecto negativo directo sobre la diversidad y abundancia de par\u00e1sitos en especies nativas. <em>\u201cA mayor\u00a0proporci\u00f3n\u00a0de\u00a0peces\u00a0invasores,\u00a0menor\u00a0es la\u00a0riqueza\u00a0de\u00a0par\u00e1sitos\u00a0y\u00a0m\u00e1s\u00a0simples se\u00a0vuelven\u00a0las redes de\u00a0interacci\u00f3n\u00a0ecol\u00f3gica,\u00a0independientemente\u00a0del\u00a0tipo\u00a0de\u00a0r\u00edo\u00a0o de la\u00a0cuenca\u00a0analizada\u201d.<\/em><\/p>\n<h3><strong>El rol de los par\u00e1sitos<\/strong><\/h3>\n<p>El\u00a0trabajo\u00a0tambi\u00e9n\u00a0desaf\u00eda\u00a0una\u00a0percepci\u00f3n\u00a0com\u00fan\u00a0en\u00a0la\u00a0sociedad:\u00a0que\u00a0los\u00a0par\u00e1sitos\u00a0son\u00a0sin\u00f3nimo\u00a0de\u00a0enfermedad. En\u00a0los\u00a0r\u00edos\u00a0estudiados los\u00a0par\u00e1sitos\u00a0registrados\u00a0son\u00a0nativos\u00a0y no\u00a0pat\u00f3genos, y\u00a0su\u00a0presencia\u00a0indica\u00a0ecosistemas\u00a0funcionales\u00a0y con\u00a0ciclos\u00a0ecol\u00f3gicos\u00a0completos.<\/p>\n<p>En\u00a0este\u00a0sentido,\u00a0los\u00a0par\u00e1sitos\u00a0pueden\u00a0actuar\u00a0como\u00a0<strong>indicadores\u00a0sensibles\u00a0del\u00a0estado\u00a0de\u00a0conservaci\u00f3n\u00a0de\u00a0los\u00a0r\u00edos<\/strong>,\u00a0incluso\u00a0antes de\u00a0que\u00a0se\u00a0observen\u00a0cambios\u00a0evidentes\u00a0en\u00a0las comunidades de\u00a0peces.<\/p>\n<p><em>\u201cCuando las especies invasoras interrumpen estos ciclos, no solo afectan a los peces nativos, sino tambi\u00e9n a procesos ecol\u00f3gicos menos visibles, como la transmisi\u00f3n de par\u00e1sitos, que son fundamentales para la estabilidad del ecosistema\u201d<\/em>,\u00a0se\u00f1ala\u00a0Rebolledo.<\/p>\n<p>Cabe se\u00f1alar, que la\u00a0investigaci\u00f3n\u00a0fue\u00a0desarrollada, adem\u00e1s,\u00a0en colaboraci\u00f3n\u00a0de\u00a0la Dra.\u00a0Evelyn\u00a0Habit,\u00a0 del\u00a0Departamento de Sistemas\u00a0Acu\u00e1ticos, Facultad de Ciencias Ambientales, Universidad de\u00a0Concepci\u00f3n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Una investigaci\u00f3n de la Universidad Austral de Chile, publicada en Biological Invasions, analiz\u00f3 r\u00edos de las cuencas del Biob\u00edo e Imperial y observ\u00f3 cambios en las interacciones entre peces nativos y par\u00e1sitos asociados a la presencia de especies invasoras, como truchas y peces mosquito.<\/p>\n","protected":false},"author":10,"featured_media":85943,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[29023,5556,1859,578,1072],"class_list":["post-85942","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia","tag-biological-invasions","tag-ciencia","tag-investigacion","tag-uach","tag-universidad-austral-de-chile"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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