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espanolEl Reglamento Ambiental para la Acuicultura chilena establece la posibilidad de realizar lavado de redes in situ como medida de control de bio-incrustantes y considerando el crecimiento del sector salmonero durante los ultimos anos, es imperativo generar la informacion necesaria y relevante que permita diagnosticar los distintos sistemas de lavado in situ y su potencial impacto ambiental. Se realizaron campanas de muestreo en 3 sectores en la region de Los Lagos, donde se obtuvieron muestras de agua y sedimento mediante un diseno de muestreo que permitio comparar valores de materia organica particulada y sedimentable previo y posterior a la actividad de lavado de redes in situ sin retencion. Los resultados muestran diferencias en las matrices estudiadas entre los 3 sitios, pero solo diferencias dentro de Pichagua (menor antes que despues del lavado in situ) y Alao Sur (mayor antes que despues del lavado) en las tasas de sedimentacion. EnglishThe Chilean Environmental Regulation for Aquaculture provides the possibility of washing nets as bio-fouling control in situ and considering the growth of the salmon farming industry in recent years, it is imperative to generate the necessary and relevant information to diagnose different cleaning systems in situ and their potential environmental impact. Accordingly, sampling campaigns were conducted in 3 sectors of the Los Lagos Region, where sediment rates and organic material was determinated in water and sediment, pre and post washing nets. The results show differences in the matrices studied between 3 sites, but only differences within Pichagua (younger before after washing in situ) y Alao Sur (mayor before after washing) in sedimentation rates.

Efectos del lavado in situ de redes en sedimentos asociados a la acuicultura en el sur de Chile