The pink beach of Budelli, in the Archipelago of La Maddalena, in Sardinia, is a splendid place, but at risk of disappearing. Its pink sand has been stolen by hordes of tourists for years, leading to beach access being strictly forbidden or strictly restricted.
A photovoltaic system and water, sewage and purification systems will be built in the house in Cala di Roto. The intervention will make it possible to redevelop the area and favor the future use of visitors. In addition, thanks to the funds raised in 2016 by the students of the Mosso school to help make Budelli public, the Board of Directors of the National Park has decided to install, in collaboration with the WWF, a surveillance service with a series of cameras that will allow constant control of the beach.
Video by La Repubblica
Do extreme heat waves affect fish enhanced production?
A heat wave, in meteorology, is a period of atmospheric time during which the temperature is unusually high compared to the average temperatures usually experienced in a given region, in that period and with characteristics of persistence.
It should not be confused with the more specific phenomenon of the heat bubble. Heat waves have become more frequent and intense in recent years due, according to scientists, to current global warming or they would be one of the ways in which such warming would manifest itself at the meteorological level, that is in the short term.
Often, but not always, the most intense heatwaves are preceded by another mini heatwave, lasting a few days, which acts as an anticipation to the second.
Heat waves also impact food production and livestock farming. Also regarding enhanced fish.
The study: Enhanced fish production during a period of extreme global warmth, published on the Nature communications, gives us important information about it.
We can read: "Marine ecosystem models predict a decline in fish production with anthropogenic ocean warming, but how fish production equilibrates to warming on longer timescales is unclear.
We report a positive nonlinear correlation between ocean temperature and pelagic fish production during the extreme global warmth of the Early Paleogene Period (62-46 million years ago [Ma]). Using data-constrained modeling, we find that temperature-driven increases in trophic transfer efficiency (the fraction of production passed up trophic levels) and primary production can account for the observed increase in fish production, while changes in predator-prey interactions cannot.
These data provide new insight into upper-trophic-level processes constrained from the geological record, suggesting that long-term warming may support more productive food webs in subtropical pelagic ecosystems."