20.500.12556/DiRROS-22083 Parasite sedimentary DNA reveals fish introduction into a European high-mountain lake by the seventh century High-mountain lakes were historically fishless due to natural barriers, but human introductions have led to widespread fish presence. Although particularly intensive during the last decades, historical documents indicate introductions in European high mountains already during the 14th and 15th centuries, but they could have occurred before, provided the intensive land use of the high mountain had started earlier. We used ancient environmental DNA from lake sediments (sedDNA) to investigate this hypothesis. Fish ectoparasites from various clades were identified using the 18S rRNA gene in the sediment record of a deep, high-mountain Pyrenean lake, with Ichthyobodo (Kinetoplastea) being of particular interest due to its consistent occurrence. The study shows a continued presence of fish parasites in the lake since the 7th century, which coincides with the Late-Roman and Visigothic extensive mountain use for sheep pasturing as supported by nearby archeological remains and increased lake primary production evidenced by photosynthetic pigments. high-mountain lakes fishless sedimentary ancient DNA sedDNA ectoparasites hydrobiology visokogorska jezera odsotnost rib starodavna sedimentna DNK ektoparaziti hidrobiologija Ichthyobodo true false true Angleški jezik Slovenski jezik Neznano 2025-04-23 08:59:10 2025-04-23 08:59:10 2025-10-24 03:50:29 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 23. 4. 2025; Soavtorji: Marisol Felip, Anton Brancelj, Pere Masqué & Jordi Catalan; str. 1-15 Vol. 16, article no. 3081 Apr. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-04-08 574 2041-1723 10.1038/s41467-025-57801-x 233962755 https://doi.org/10.1038/s41467-025-57801-x 1 76f0a515-2010-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31914 RAZ_Fagin_Elena_2025.pdf RAZ_Fagin_Elena_2025.pdf 1 4E537D0AC38C8AE17F68E4F6C58C4273 768a7271545bf9234c4e5650660841bdb923917b6ae40ef62a497a5f4f7e0eae 8d2e252e-2010-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31915 Nacionalni inštitut za biologijo 0 0 0