News dated
In a report published on 25 September, Italy’s National Research Council describes a field campaign on the Annone lakes near Lecco. Irea researchers have studied aquatic plants there since 2021, including water chestnut, Trapa natans. They aim to understand the plants’ condition and improve the interpretation of satellite observations. The report does not announce a new, definitive diagnosis of the lake’s health. [1]
A platform installed at the start of summer measures light reflected by the vegetation every five minutes during daylight hours. Researchers compare it with measurements collected by boat. They also check chlorophyll, a pigment involved in photosynthesis, and how much of the water the plants cover. The light signal alone cannot explain everything. [1]
The campaign was timed around a pass by Italy’s PRISMA satellite. Rain interrupted work on the boat; when conditions improved, the team completed vegetation measurements and platform maintenance. The account does not establish that a perfectly simultaneous comparison with the satellite was achieved. [1]
The bright side
Measurements taken directly on the lake provide a practical reference for interpreting observations from above. The account also makes the limits of fieldwork visible, starting with the weather. [1]
One idea, in simple words
Near Lecco in Italy, scientists study a floating plant in the Annone lakes: water chestnut. The CNR described this work on 25 September. A platform measures the light bouncing back from leaves every five minutes during daylight. This light can provide clues about how the plants are doing. [1]
But one clue is not the whole answer. Researchers collect other measurements by boat and check how much space the plants cover. As an example, think of a photograph and a visit to the same place: together they can tell you more. These measurements also help explain satellite images. This time, rain interrupted some of the work. The scientists continued later, without claiming that every planned comparison had succeeded. [1]
A little discovery to keep
What did you discover?
Straight from the source.
- Lago di Annone, quando una pianta diventa un indicatore ambientale Consiglio Nazionale delle Ricerche · 25 Sept 2026
Original reporting summaries prepared with AI assistance and accessible sources. Our editorial method.
