Apr 10, 2017

Coral reef fish choose to eat in crowds

Associated Press

Coral reef fish take note of what others are eating, a behavior that can affect sensitive reef environments. Scientists from the University of California-Davis and Princeton studied fish grazing around coral reefs in French Polynesia and found that fish decide to feed on algae if they see lots of other fish in the same place. But if there aren't any other fish nearby, they take it as a sign that predators are close and avoid that section of the reef.

Why it matters: Fish keep the growth of algae, which can harm coral reefs, in check. Overfishing threatens that balance not just because there are simply less fish consuming algae but because fish interpret the presence of fewer fish as a risk when there may not be one. The researchers suggest the newly-revealed link between the social interactions of fish and how food and energy flow through the reef should inform how these sensitive environments, distressed by climate change, are managed.

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U.S. coronavirus updates: Death toll tops 5,000

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Andrew Witherspoon/Axios

The novel coronavirus has now killed more than 5,100 people in the United States, as more state governors issued stay-at-home orders Wednesday to curb the spread. Over 216,000 people are now infected and more than 8,500 others have recovered.

The state of play: Trump administration officials are anonymously sounding the alarm that America's emergency stockpile of personal protective equipment is running dangerously low, the Washington Post reports.

Go deeperArrowUpdated 30 mins ago - Health

Trump admin won't reopen ACA enrollment for uninsured amid outbreak

President Trump speaks while flanked by Vice President Mike Pence during the daily coronavirus task force briefing at the White House on Tuesday. Photo: Win McNamee/Getty Images

The Trump administration has decided not to reopen enrollment to uninsured Americans for the Affordable Care Act's Healthcare.gov marketplaces, an official confirmed to Axios Wednesday.

Driving the news: President Trump said last week he was considering the move in response to the novel coronavirus outbreak, notes Politico, which first reported the news.

Go deeperArrow43 mins ago - Health

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 11:30 p.m. ET: 937,091 — Total deaths: 47,231 — Total recoveries: 193,764Map.
  2. U.S.: Total confirmed cases as of 11:30 ET: 216,515, — Total deaths: 5,119 — Total recoveries: 8,593Map.
  3. Business updates: Small businesses are bearing the brunt of the coronavirus job crisis.
  4. World updates: Spain’s confirmed cases surpassed 100,000, and the nation saw its biggest daily death toll so far. More than 500 people were reported dead within the last 24 hours in the U.K., per Johns Hopkins.
  5. State updates: Florida and Pennsylvania are the latest states to issue stay-at-home orders — Michigan has more than 9,000 confirmed cases, an increase of 1,200 and 78 new deaths in 24 hours.
  6. Stock market updates: Stocks closed more than 4% lower on Wednesday, continuing a volatile stretch for the stock market amid the coronavirus outbreak.
  7. 1 future thing: Shifts to telemedicine, at-home diagnostics, and drone delivery are all likely lasting consequences from this pandemic.
  8. What should I do? Answers about the virus from Axios expertsWhat to know about social distancingQ&A: Minimizing your coronavirus risk.
  9. Other resources: CDC on how to avoid the virus, what to do if you get it.

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