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Título
River Diatoms Reflect Better Past than Current Environmental Conditions
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Water
Número de la revista
2
Cita Bibliográfica
Viso, R., & Blanco, S. (2023). River diatoms reflect better past than current environmental conditions. Water (Switzerland), 15(2), Article e333. https://doi.org/10.3390/W15020333
Editorial
MDPI
Fecha
2023
Resumen
[EN] The time required for diatom assemblages to integrate the abiotic variables of the aquatic environment has been subject of discussion for many years, with contrasting opinions as shown by field observations and experiments. Numerous diatom-based water quality indices are being used in the bioassessment of freshwaters; one of the most widely used (Specific Polluosensitivity Index or SPI) is compared in this study with water quality status as measured by the Water Quality Index (WQI) obtained from limnological parameters measured at 37 fluvial stations belonging to the Duero Basin (NW Spain). The correlation existing between both metrics was determined using different time lags between water and diatom sample collection. Results show that the correlation coefficient increases as the time gap decreases, but is maximal when comparing WQI scores measured one month before diatom sampling. We thus confirm the initial hypothesis that diatom indices actually indicate past (1 month ago) and not current water conditions in rivers. The practical consequences of this finding are briefly discussed
Materia
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SI
URI
DOI
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