An anonymous reader quotes a report from CBS News: In a major blow to America’s seafood industry, the Alaska Department of Fish and Game has, for the first time in state history, canceled the winter snow crab season in the Bering Sea due to their falling numbers. While restaurant menus will suffer, scientists worry what the sudden population plunge means for the health of the Arctic ecosystem. An estimated one billion crabs have mysteriously disappeared in two years, state officials said. It marks a 90% drop in their population.

Ben Daly, a researcher with ADF&G, is investigating where the crabs have gone. He monitors the health of the state’s fisheries, which produce 60% of the nation’s seafood. “Disease is one possibility,” Daly told CBS News. He also points to climate change. According to the National Oceanic and Atmospheric Administration, Alaska is the fastest warming state in the country, and is losing billions of tons of ice each year — critical for crabs that need cold water to survive. “Environmental conditions are changing rapidly,” Daly said. “We’ve seen warm conditions in the Bering Sea the last couple of years, and we’re seeing a response in a cold adapted species, so it’s pretty obvious this is connected. It is a canary in a coal mine for other species that need cold water.” “Did they run up north to get that colder water?” asked Gabriel Prout, owner of a Kodiak Island fishing business heavily reliant on the snow crab population. “Did they completely cross the border? Did they walk off the continental shelf on the edge there, over the Bering Sea?”

Prout said there needs to be a relief program for fisherman, “similar to programs for farmers who experience crop failure, or communities affected by hurricanes or flooding,” notes the report.

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Source: Slashdot – Alaska Cancels Snow Crab Season As Estimated 1 Billion Crabs Disappear

Global animal populations are declining, and we’ve got limited time to try to fix it. From a report: That’s the upshot of a new report from the World Wildlife Fund and the Zoological Society of London, which analyzed years of data on thousands of wildlife populations across the world and found a downward trend in the Earth’s biodiversity. According to the Living Planet Index, a metric that’s been in existence for five decades, animal populations across the world shrunk by an average of 69% between 1970 and 2018. Not all animal populations dwindled, and some parts of the world saw more drastic changes than others. But experts say the steep loss of biodiversity is a stark and worrying sign of what’s to come for the natural world. “The message is clear and the lights are flashing red,” said WWF International Director General Marco Lambertini. According to the report’s authors, the main cause of biodiversity loss is land-use changes driven by human activity, such as infrastructure development, energy production and deforestation. But the report suggests that climate change — which is already unleashing wide-ranging effects on plant and animal species globally — could become the leading cause of biodiversity loss if rising temperatures aren’t limited to 1.5C.

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Source: Slashdot – Animal Populations Shrunk an Average of 69% Over the Last Half-Century, Report Says

A study of tens of thousands of people in Scotland found that one in 20 people who had been sick with Covid reported not recovering at all, and another four in 10 said they had not fully recovered from their infections many months later. From a report: The authors of the study, published on Wednesday in the journal Nature Communications, tried to home in on the long-term risks of Covid by comparing the frequency of symptoms in people with and without previous Covid diagnoses. People with previous symptomatic Covid infections reported certain persistent symptoms, such as breathlessness, palpitations and confusion or difficulty concentrating, at a rate roughly three times as high as uninfected people in surveys from six to 18 months later, the study found. Those patients also experienced elevated risks of more than 20 other symptoms relating to the heart, respiratory health, muscle aches, mental health and the sensory system.

The findings strengthened calls from scientists for more expansive care options for long Covid patients in the United States and elsewhere, while also offering some good news. The study did not identify greater risks of long-term problems in people with asymptomatic coronavirus infections. It also found, in a much more limited subset of participants who had been given at least one dose of Covid vaccine before their infections, that vaccination appeared to help reduce if not eliminate the risk of some long Covid symptoms. People with severe initial Covid cases were at higher risk of long-term problems, the study found.

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Source: Slashdot – Nearly Half of Covid Patients Haven’t Fully Recovered Months Later, Study Finds