Diversidad bacteriana en el humedal costero artificial Poza La Arenilla mediante el análisis de ADN ambiental
DOI:
https://doi.org/10.57188/manglar.2025.055Palavras-chave:
microbiota acuática, ecología microbiana, ecosistema artificial, metabarcoding, bioindicadoresResumo
La Poza La Arenilla es un humedal costero artificial ubicado en La Punta, Callao, Perú. En nuestra investigación, se caracterizó la comunidad bacteriana de esta localidad en junio y septiembre de 2024 utilizando metabarcoding de ADN ambiental. La secuenciación mediante la tecnología Oxford Nanopore identificó cinco filos principales: Proteobacteria (dominante), Actinobacteriota, Bacteroidota, Campylobacterota y Desulfobacterota, concordante con patrones de humedales costeros globales. La comunidad reveló una notable diversidad taxonómica, presentando a los géneros Amylibacter, Planktomarina y Glaciecola, el género candidato Candidatus Actinomarina, y grupos marinos como HIMB11, NS11-12 marine group, OM43 clade, SAR86 clade y Clade Ia. Se observaron variaciones temporales significativas en los índices de diversidad entre ambos meses correlacionados con cambios en el oxígeno disuelto, pH, salinidad y temperatura del agua. La presencia significativa de las categorías "Otros" y uncultured (no asignados) sugiere la necesidad de investigaciones futuras para identificar su taxonomía y sus roles en los procesos biogeoquímicos y como bioindicadores de calidad ambiental, complementando los indicadores convencionales de la normativa peruana. Este estudio establece la primera línea base molecular de la diversidad bacteriana en esta localidad, contribuyendo al desarrollo de estrategias de conservación y gestión ambiental efectivas.
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Direitos de Autor (c) 2025 Mayra Silva, Angel I. Ramirez, Abraham Espinoza-Culupú, Mario Cueva, Rina Ramírez, Pedro E. Romero
Este trabalho encontra-se publicado com a Licença Internacional Creative Commons Atribuição 4.0.
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