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Latest Horseshoe crab Stories

68f791e9788daf1178c2c2de10b2be5f1
2009-02-18 14:29:35

Declining numbers of a shorebird called the red knot have been linked to bait use of horseshoe crabs. Long-term surveys of red knots showed that the average weight of red knots when they leave Delaware Bay has declined significantly since their primary food source, eggs of horseshoe crabs, has been reduced. The study also revealed that red knot survivorship is related to departure weight, and that the population size of red knots has declined by more than 75 percent. "We concluded that the...

030b6a9115a29522cee87f10979da4f41
2009-02-06 14:55:00

Even in space, someone has to clean the bathroom. Good housekeeping is essential when you're living in the close quarters of a tightly-sealed spaceship for months at a time. To make this possible, NASA scientists have developed a tricorder-like device called "LOCAD-PTS" that can track down microscopic bacteria and fungi. It helps astronauts do their chores. "The crew of the space station works hard to keep things clean," says Norm Wainwright, principal investigator for LOCAD-PTS...

21ddfe606c1b8241001d978d88b641fa1
2008-05-28 08:52:53

Experts are pointing to restrictions in U.S. east coast states on harvesting horseshoe crabs as the cause of the recent surge in the population of endangered migrating shore birds after years of over-fishing.Horseshoe crabs lay the eggs on the shores of the east coast every spring, and the migratory birds rely on the eggs as a source of food.Before the restrictions were put in place, commercial fishermen had harvested millions of crabs, which they used for bait while fishing for conch and...

2008-01-28 11:40:00

Nearly a half a billion years ago, tiny horseshoe crabs crept along the shorelines much like today's larger versions do, new fossil evidence suggests. Two nearly complete fossil specimens discovered in Canada reveal a new genus of horseshoe crab, pushing their origins back at least 100 million years earlier than previously thought. Dubbed Lunataspis aurora, the ancient horseshoe crab is estimated to have been just 1.5 inches (4 centimeters) from head to tail-tip. That's much smaller than...

b09a6930e332b18ef9e16a8164cb85ab1
2006-11-21 09:45:00

Soon, astronauts onboard the ISS will test a high-tech medical device that uses primitive enzymes from horseshoe crabs to diagnose human illness. Picture this: You're on a mission to Mars, halfway there from Earth, and you're not feeling well. Your throat hurts when you swallow, your forehead is hot. You don't want to get sick or infect your crewmates. Should you take an antibiotic? If so, which kind? With a new biological laboratory on a chip being developed at NASA's Marshall Space Flight...

8b5dfe2203be58cec50274e96c4d39501
2006-06-07 07:25:00

By Jon Hurdle REED'S BEACH, New Jersey -- On a remote New Jersey beach, a team of biologists huddled behind a dune, out of sight of a flock of birds that gathered on a stretch of sand. Suddenly, there was a loud bang, and the scientists sprinted to a spot on the beach where a net, propelled by an explosive charge, trapped about 100 birds that were flapping their wings helplessly. Rushing to untangle the birds, the team released the sea gulls and then gently placed the other species -- all...

61d3f033d1f5126696f5d82572ab81131
2006-03-31 06:58:18

GALLOWAY TOWNSHIP, N.J. -- Environmentalists won a key battle Thursday in their efforts to protect the red knot, a small bird that migrates through the Delaware Bay. After a sometimes contentious meeting that pitted the state and environmentalists against fishermen who have plied the bay for years, the state Marine Fisheries Council - by a 7-3 vote - chose not to veto proposed rules from the Department of Environmental Protection that would implement a two-year moratorium on horseshoe crab...

2005-06-07 07:11:40

TRENTON, N.J. -- Environmentalists on Tuesday will urge the governors of New Jersey and Delaware to enforce strong new protections for a migratory shorebird threatened with extinction. Eight conservation groups in the two states are rallying on behalf of the red knot, a species that migrates from South America to the Arctic to breed each spring. The birds' principal stopover is New Jersey and Delaware, where they spend weeks fattening up on horseshoe crab eggs before continuing their...


Latest Horseshoe crab Reference Libraries

45_2c0380c7e76515063dc4326285e9fbf8
2009-04-01 13:32:49

The Red Knot (Calidris canutus), or Knot in Europe, is a species of bird found in the tundra and Arctic mountains in the far north of Canada, Europe and Russia. North American birds migrate to coastal Europe and South America, while European birds migrate to Africa, Papua New Guinea, Australia and New Zealand. This species has an extensive range and a large population of about 1.1 million individuals. There are six subspecies. The adult is 9 to 10.25 inches in length with an 18.5 to 20.8...

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