Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Integration of in situ and remote sensing measurements for the management of harmful cyanobacteria blooms. A lesson from a strategic multiple-uses reservoir (lake occhito, South Italy) |
| Abstract | Harmful cyanobacteria blooms (HCBs) are one of the main water quality threats affecting reservoirs. Guidelines suggest integrating laboratory, real-time in situ, and remote sensing data in the monitoring of HCBs. However, this approach is still little adopted in institutional measuring programs. We demonstrated that this integration improves frequency and spatial resolution of the data collection. Data were from an intense HCB (Planktothrix rubescens), which occurred in a south Italy multiple-uses reservoir (Lake Occhito) between 2008 and 2009 and regarded both the lake and the irrigation network. Laboratory and in situ fluorometric data were related to satellite imagery, using simple linear regression models, to produce surface lake-wide maps reporting the distribution of both P. rubescens and microcystins. In the first node of the distribution network, microcystin concentrations (4-10 µg L) reached values potentially able to damage the culture and to accumulate during cultivation. Nevertheless, our study shows a decrease in the microcystin content with the distance from the lake (0.05 µg L km ), with a reduction of about 80% of the microcystin concentrations at the furthest tanks. Recent improvements in the spatial resolution (i.e., tens of meters) of satellite imagery allow us to monitor the main tanks of large and complex irrigation systems. |
| Source | Water (Basel) 13 (16) |
| Keywords | Harmful cyanobacteria bloomsIn situ measurementsIrrigation networkMicrocystinsMultiple-uses reservoirsRemote sensing |
| Journal | Water (Basel) |
| Editor | Molecular Diversity Preservation International, Basel, |
| Year | 2021 |
| Type | Articolo in rivista |
| DOI | 10.3390/w13162162 |
| Authors | Copetti, Diego; Matarrese, Raffaella; Bresciani, Mariano; Guzzella, Licia |
| Text | 457466 2021 10.3390/w13162162 Scopus 2 s2.0 85112131270 Harmful cyanobacteria blooms In situ measurements Irrigation network Microcystins Multiple uses reservoirs Remote sensing Integration of in situ and remote sensing measurements for the management of harmful cyanobacteria blooms. A lesson from a strategic multiple uses reservoir lake occhito, South Italy Copetti, Diego; Matarrese, Raffaella; Bresciani, Mariano; Guzzella, Licia Istituto di Ricerca Sulle Acque, Bari; Istituto di Ricerca sulle Acque, Italy; Consiglio Nazionale delle Ricerche, Institute for Electromagnetic Sensing of the Environment Harmful cyanobacteria blooms HCBs are one of the main water quality threats affecting reservoirs. Guidelines suggest integrating laboratory, real time in situ, and remote sensing data in the monitoring of HCBs. However, this approach is still little adopted in institutional measuring programs. We demonstrated that this integration improves frequency and spatial resolution of the data collection. Data were from an intense HCB Planktothrix rubescens , which occurred in a south Italy multiple uses reservoir Lake Occhito between 2008 and 2009 and regarded both the lake and the irrigation network. Laboratory and in situ fluorometric data were related to satellite imagery, using simple linear regression models, to produce surface lake wide maps reporting the distribution of both P. rubescens and microcystins. In the first node of the distribution network, microcystin concentrations 4 10 µg L reached values potentially able to damage the culture and to accumulate during cultivation. Nevertheless, our study shows a decrease in the microcystin content with the distance from the lake 0.05 µg L km , with a reduction of about 80% of the microcystin concentrations at the furthest tanks. Recent improvements in the spatial resolution i.e., tens of meters of satellite imagery allow us to monitor the main tanks of large and complex irrigation systems. 13 Published version http //www.scopus.com/record/display.url eid=2 s2.0 85112131270 origin=inward Articolo in rivista Molecular Diversity Preservation International 2073 4441 Water Basel Water Basel Water Basel Water. Basel liciamaria.guzzella GUZZELLA LICIA MARIA diego.copetti COPETTI DIEGO raffaella.matarrese MATARRESE RAFFAELLA mariano.bresciani BRESCIANI MARIANO |