#aquatic-ecosystems

#aquatic-ecosystems

When light shines through water, colors with longer wavelengths are absorbed by the water, with the longest wavelengths absorbed first. Blue and violet have the shortest wavelengths of visible light, so they are able to penetrate the deepest.

"They didn't even try to fly away. They just feebly made noise," a woman told the Santa Barbara Independent on Saturday after spotting over two dozen dead or dying cormorants near Goleta Beach. "A few were on their stomachs, wings spread [and] gasping for breath.... Heartbreaking."

Longnose spurdog sharks, locally known as kalb al-bahr, are sold on Libyan fish markets. Fishermen catch them even though they are carrying eggs, driven by economic necessity.

Nobuyuki Miyaoka, attending the festival, notes that the local oysters used to be a lot bigger, expressing concern over their current small size and scarcity.

A study by researchers at the University of California Berkeley has found that ethanol is surprisingly common in floral nectar, the sugary fuel that keeps pollinators alive. Yeast feeding on those sugars produces trace amounts of alcohol, and in this study, it showed up in 26 of the 29 plant species sampled.

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.

Modern scientific societies are increasingly vulnerable due to their dependence on membership fees and journal subscriptions, which are being challenged by the rise of virtual networking and open-access publishing.

"There are not very many conservation issues that I'm aware of where industry and conservationists and consumers and the fishermen and the resource users all want the same thing. Every stakeholder wants less bycatch."

'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.'

The Endangered Species Committee voted to approve the request for the ESA exemption at the request of the defense secretary, Pete Hegseth. Hegseth has said environmentalists' lawsuits against the industry threatened to hobble the nation's energy supply, while environmentalists fear drilling could kill off protected species including Rice's whales, whooping cranes and sea turtles.

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.

If you enter the amounts of different types of plastic that you clean up into the Wildlife Impact Calculator, it will tell you how many animal lives would have been at risk, had those items made their way into the ocean and been ingested.

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.

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".

In February 2023, an article in the Mexican press announced the capture of a vessel some 195 nautical miles from the port of Lazaro Cardenas in the state of Michoacan. It had been carrying nearly 700 pounds of cocaine packaged in plastic-wrapped bricks, in addition to 1,650 liters of hydrocarbons in 33 plastic containers. Two Ecuadorian fishermen were among the five detainees, and their immigration records showed unusual activity.

Fifteen years ago, he searched for fish. Now he hunts plastic bottles. The fish fled from the plastic chokehold, said Sayed, who has lived on the Giza island since arriving from Assiut, further south on the Nile, as a 14-year-old fishing apprentice. Declining fish populations, caused by plastic pollution in the river, have forced approximately 180 fishers on al-Qarsaya to pivot from traditional fishing to waste collection.

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.

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.

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.

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.

When the category-5 storm Hurricane Melissa struck Jamaica in October, its path crossed communities that had varying levels of preparedness. Many with maintained coastal protections, upgraded drainage and reliable early-warning systems had power and water restored in days. Others were immobilized for weeks.

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."

Raw sewage and solid waste flow into the bay from surrounding cities, home to more than 8 million people. Cargo ships and oil platforms chug in and out of commercial ports, while dozens of abandoned vessels lie rotting in the water. But at the head of the bay, between the cities of Itaborai and Mage, the environment feels different. The air is purer, the waters are empty but for small fishing canoes, and flocks of birds soar overhead.