The Aquatic Biodiversity Index of the Biodiversity Friend® protocol evaluates how much an environment aquatic environment, as a whole, is conducive to hosting significant biodiversity. In the IBA-bf survey sheet, the analysis of the faunal component is preceded by surveys on the main chemical-physical parameters of water: temperature, pH, electrical conductivity and oxygen dissolved. Biodiversity indicators: biological quality of surface water through the application of the aquatic biodiversity index (iba-bf) Acquatic biodiversity index Sampling of aquatic fauna is carried out using a sleeved net aquatic macroinvertebrates, but also from the shore, investigating the lower surfaces of stones and between bottom debris. After completing the sampling, the Biodiversity Index is calculated Aquatics of the station by adding all the scores obtained in each section of the sheet: hydro morphology, taxonomic diversity and pollution tolerance.
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