#green-algae

#green-algae

"While whales and dolphins may temporarily move out of areas where there is significant naval sonar activity, the intensity of modern maritime conflict poses lethal risks."

The South Florida Reef Tract, once decimated by dredging in the 1950s, has bounced back, a resilient sign of hope in these ecologically depressing times.

The impact on patients and health services is just one part of a growing health burden driven by sea-level rise, including water contamination, infectious disease, food insecurity, displacement and worsening mental health.

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.

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.

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.

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".

This unassuming marine macroalgae (to give it its proper name) is packed full of vital minerals and nutrients, and can make for an unglamorous, yet functional addition to your diet. Seaweed is exactly as the name suggests - an edible marine algae that grows along coastlines and on rocks under the water. It comes in thousands of varieties, but the ones we eat most commonly fall into three groups: brown (like kelp and wakame), red (nori, dulse), and green (sea lettuce).

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.

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.

Climate breakdown is occurring more rapidly with the heating rate almost doubling, according to research that excludes the effect of natural factors behind the latest scorching temperatures. It found global heating accelerated from a steady rate of less than 0.2C per decade between 1970 and 2015 to about 0.35C per decade over the past 10 years.

That seemingly paradoxical dynamic results from several factors. Foremost among them is the rebound of land beneath the Greenland Ice Sheet, a mile-thick body of glacial ice that covers 80 percent of the island and is being lost to melting at a rate of roughly 200 billion tons each year. As the ice sheet loses mass, the land beneath rises.

Krill are a keystone species and the main food source for whales, penguins and seals. Aker QRILL, the world's largest harvester of krill, a tiny crustacean and keystone of Antarctica's fragile ecosystem, and its sister company, Aker BioMarine, produce feed additives for aquaculture and dietary supplements for pets and humans.

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.

Polar bears are the poster children of climate changeand for good reason. These giant bears hunt, mate and spend their days hanging out on Arctic sea ice, which is rapidly disappearing as the climate warms. But some polar bears, it seems, are far more resilient than we realized: new research suggests that in one region, the bears are adapting to the declining sea ice.

Recently, while sailing with friends on San Francisco Bay, I enjoyed the sight of harbor porpoises, cormorants, pelicans, seals and sea lions and then the spouting plume and glistening back of a gray whale that gave me pause. Too many have been seen inside the bay recently. California's gray whales have been considered an environmental success story since the passage of the 1972 Marine Mammal Protection Act and 1986's global ban on commercial whaling. They're also a major tourist attraction during their annual 12,000-mile