#chalk-stream

#chalk-stream

During major floods, thousands of tiny fish convene at Luvilombo Falls in the upper Congo River Basin to undertake a peculiar vertical migration, described for the first time today in Scientific Reports.

'Our results show that the next 20 years are critical,' lead author Dr Rob Cooke told the Daily Mail. 'By around 2050, we reach a point where the choices we make on emissions and land use will largely determine whether Britain moves towards a much more degraded or a much more nature‑positive future.'

Few transformations in the history of life have been as extreme as the embrace of the ocean by seagrass. Like whales and dolphins, modern seagrasses descend from land-dwelling ancestors.

Peat bogs provide huge value to humans and the environment. When healthy, they store twice as much carbon as all the world's forests, reducing global emissions.

The key driver for introducing a new banknote series is always to increase counterfeit resilience. But it also provides an opportunity to celebrate different aspects of the UK. Nature is a great choice from a banknote authentication perspective and means we can showcase the UK's rich and varied wildlife.

This declaration establishes a much-needed green lung for this part of the borough. Our charity launched this campaign back in January 2021. At that time, we were emerging from Covid lockdown, and people were discovering the wonders of nature and wildlife on their doorstep in the Brent River Park.

Along coastlines, where tides are typically magnified, they profoundly affect navigation, commerce, coastal flooding, water properties and sediment transport. Tides impact the flooding of rivers and, thus, influence the extent of their floodplain, which has cascading effects on biogeochemical and ecological processes.

They're special on a world stage, 85% of chalk streams are in England. They're wonderful habitats, they're great for people as well, people really enjoy them, whether it's areas like this where you can find kingfishers and grey wagtails and it's just a unique resource that we really should steward properly.

Signs of ageing accelerated when fish were exposed to the chemicals, according to the study, which could have implications for other organisms. Chemical safety regulations tend to focus on short-term exposure to high doses of pesticides and other chemicals, but the study focused on long-term exposure. Low doses of pesticides are widespread in the environment, so their effects should be studied and understood, the authors said.

Over time, the water evaporated to form the smaller, brinier Owens Lake. Indigenous Paiute people call the Owens Valley Payahuunadü, 'the land of the flowing water'. Today, Owens Lake is a 'Dusty Vestige of the Old West', as NASA described a photograph of the lake taken from space.

a unique health offer, with nothing similar in London, the UK or Europe

But as he swept his flashlight through the dark waters, something unexpected emerged. Inching through the beam of light, an alien creature crawled across the surface of the sand, resembling an inch-long cluster of ghostly leaves fringed with silvery filigree and capped with a pair of antennae-like stalks. It immediately caught my eye, said Gosliner, Invertebrate Zoology Curator for the California Academy of Sciences. I've been diving there for 30 years and this one immediately struck me as different.

London is the only place in the UK where you can find scorpions, snakes, turtles, seals, peacocks, falcons all in one city and not London zoo. Step outside and you will encounter a patchwork of writhing, buzzing, bubbling urban microclimates. Sam Davenport, the director of nature recovery at the London Wildlife Trust, emphasises the sheer variation in habitats that you find in UK cities, which creates an amazing mosaic of wildlife.

The Okefenokee Swamp is not only one of America's most important ecosystems, but also the largest blackwater swamp in North America. Its vast stretches are home to several endangered species, like the indigo snake and the wood stork.

Every time a boat passes through a canal lock, thousands of litres of water are released and must be replaced, usually from other sources. To reduce water loss, engineers sometimes build side ponds next to canals with several locks in succession. These side ponds allowed water to be "put aside" rather than lost. When a lock chamber was emptied to lower a boat to the next level, paddles were opened to divert the water into an adjacent side pond.

The government said the plans would increase the number of England's official bathing sites to 464. An official bathing spot on the Thames in London would mark a "vast transformation" in water quality in the river which was declared biologically dead in the 1950s due to pollution, officials said. Water minister Emma Hardy said rivers and beaches were "at the heart of so many communities, where people come together, families make memories and swimmers of all ages feel the benefits of being outdoors safely".

The three-part docudrama Dirty Business, which started on Channel 4 on Monday and concluded midweek, has made the notion of going into the sea in the UK terrifying and unlike Jaws, this story is real. It is an example of what good drama can do that even the best reporting can't quite achieve.

The question of how to protect fish and the ecological health of rivers that feed California's largest estuary is generating heated debate in a series of hearings in Sacramento, as state officials try to gain support for a plan that has been years in the making. "I am passionate that this is the pathway to recover fish," said state Natural Resources Secretary Wade Crowfoot. "This is the paradigm we need: collaborative, adaptive management versus conflict and litigation."

The global attack on nature is threatening the UK's national security, government intelligence chiefs have warned, as the increasingly likely collapse of vitally important natural systems would bring mass migration, food shortages and price rises, and global disorder. Food supplies are particularly at risk, as without significant increases, the UK would be unable to compete with other nations for scarce resources, a report to ministers warns.