Basking shark, the second largest fish in the world, once abundant along the Pacific coast of North America, gathered by the hundreds and even thousands. Now this is a rare treat to see that even one of the giants of the sea. But in the space of a few days, satellite technology will offer scientists an unprecedented appearance before the odyssey of a mysterious blue fish.
On February 2, basking sharks tagged with tracking devices in June 2011 inspection abruptly near Hawaii - after eight months of silence. Tagged fish near San Diego, is one of four basking sharks always marked in the eastern Pacific, and sharks just to keep the label for a long time.
"It's very exciting for us," said Heidi Dewar, a research biologist at the National Oceanic and Atmospheric Administration Southwest Fisheries Science Center in La Jolla, California. be
"This is the first time anyone has shown a direct relationship between basking sharks in the eastern Pacific and Central Pacific," said Dewar OurAmazingPlanet.
Travelling nearly 2,500 miles (4,000 kilometers) from California to Hawaii is the farthest ever recorded in the basking shark in the waters of the Pacific.
And to show that sharks can go when they leave the water beaches, tracking devices also reveals a rather surprising information about where sharks who want to hang out.
Near Hawaii, the fish monster who spend all their time at sea in a surprise, the long twilight of water at 1600 feet (500 meters) deep in the day, and going to a depth of 650 feet (200 m) overnight.
Data from an unprecedented trip comes four days after one of the only satellite ping another tag sharks, currently about 500 miles (800 kilometers) off the coast of Baja California, Mexico. [Photo: Track humpback whales]
One fish, two fish
"The location is a bit of a surprise," said Steven G. Wilson, a research associate at Stanford University, Hopkins Marine Station in Monterey Bay, California, where the tag team of shark 16 feet long (5 m) in August 2011. Although sharks are expected to travel south, Wilson said he expects to see far out to sea.
[New Marlins stadium has two giant aquarium]
Both scientists say the label is able to communicate with the satellite from the seabed, and is scheduled to detach from the animal at the time specified. As you jump to the surface, the label sent large amounts of data on temperature, depth of sunrise and sunset and - information that will allow researchers to trace the latitude and longitude of the odyssey of sharks from a satellite tag and check-in. Data analysis requires a longer work week.
But this work says Dewar useful if you expect researchers to provide officers with better information about how to protect cryptic species, according to some estimates, has fallen 90 percent in the Eastern Pacific. Some data indicate that at least 300 animals remain in the region.
Fish story
Basking shark is a big fish, second only to whale sharks in size. Despite their fierce appearance - they swim along the sea surface with its huge mouth agape - basking sharks feed by filtering zooplankton swarms of microscopic funnel until their throats.
As recently as the mid-20 century, a giant fish, which can grow to 40 feet (12.2 m), the crowd periodically on U.S. shores. An aerial survey in 1948, 2000 Monterey Bay basking shark of the day.
In late 1940, the sharks being that of 1000 pounds (450 kg), liver, rich in oil. In Canadian waters, the basking shark is the official goal of the eradication program, which ended only in 1970, because of their tendency to fail through the nets of fishermen.
Sharks, species expressed concern in 2010, has not recovered. These data suggest that sharks can live to 50 years, but the copy is slow, unborn children from 2.5 to 3.5 years, with a delay of 22 to 35 years between generations.
Both Wilson and Dewar said that basking sharks are much more and better learning in the Atlantic, where follow-up studies reveal long journey across the ocean.
And in the Atlantic Dewar is of his own close encounter with the species, an experience that, in part, continue to stimulate research.
"I jumped in the water with them, and it's pretty amazing," said Dewar. "The fact that they are large and potentially overwhelming, but is very docile and kind of peace," he said. "When you make a connection to the animal species, it is very hard to forget."
On February 2, basking sharks tagged with tracking devices in June 2011 inspection abruptly near Hawaii - after eight months of silence. Tagged fish near San Diego, is one of four basking sharks always marked in the eastern Pacific, and sharks just to keep the label for a long time.
"It's very exciting for us," said Heidi Dewar, a research biologist at the National Oceanic and Atmospheric Administration Southwest Fisheries Science Center in La Jolla, California. be
"This is the first time anyone has shown a direct relationship between basking sharks in the eastern Pacific and Central Pacific," said Dewar OurAmazingPlanet.
Travelling nearly 2,500 miles (4,000 kilometers) from California to Hawaii is the farthest ever recorded in the basking shark in the waters of the Pacific.
And to show that sharks can go when they leave the water beaches, tracking devices also reveals a rather surprising information about where sharks who want to hang out.
Near Hawaii, the fish monster who spend all their time at sea in a surprise, the long twilight of water at 1600 feet (500 meters) deep in the day, and going to a depth of 650 feet (200 m) overnight.
Data from an unprecedented trip comes four days after one of the only satellite ping another tag sharks, currently about 500 miles (800 kilometers) off the coast of Baja California, Mexico. [Photo: Track humpback whales]
One fish, two fish
"The location is a bit of a surprise," said Steven G. Wilson, a research associate at Stanford University, Hopkins Marine Station in Monterey Bay, California, where the tag team of shark 16 feet long (5 m) in August 2011. Although sharks are expected to travel south, Wilson said he expects to see far out to sea.
[New Marlins stadium has two giant aquarium]
Both scientists say the label is able to communicate with the satellite from the seabed, and is scheduled to detach from the animal at the time specified. As you jump to the surface, the label sent large amounts of data on temperature, depth of sunrise and sunset and - information that will allow researchers to trace the latitude and longitude of the odyssey of sharks from a satellite tag and check-in. Data analysis requires a longer work week.
But this work says Dewar useful if you expect researchers to provide officers with better information about how to protect cryptic species, according to some estimates, has fallen 90 percent in the Eastern Pacific. Some data indicate that at least 300 animals remain in the region.
Fish story
Basking shark is a big fish, second only to whale sharks in size. Despite their fierce appearance - they swim along the sea surface with its huge mouth agape - basking sharks feed by filtering zooplankton swarms of microscopic funnel until their throats.
As recently as the mid-20 century, a giant fish, which can grow to 40 feet (12.2 m), the crowd periodically on U.S. shores. An aerial survey in 1948, 2000 Monterey Bay basking shark of the day.
In late 1940, the sharks being that of 1000 pounds (450 kg), liver, rich in oil. In Canadian waters, the basking shark is the official goal of the eradication program, which ended only in 1970, because of their tendency to fail through the nets of fishermen.
Sharks, species expressed concern in 2010, has not recovered. These data suggest that sharks can live to 50 years, but the copy is slow, unborn children from 2.5 to 3.5 years, with a delay of 22 to 35 years between generations.
Both Wilson and Dewar said that basking sharks are much more and better learning in the Atlantic, where follow-up studies reveal long journey across the ocean.
And in the Atlantic Dewar is of his own close encounter with the species, an experience that, in part, continue to stimulate research.
"I jumped in the water with them, and it's pretty amazing," said Dewar. "The fact that they are large and potentially overwhelming, but is very docile and kind of peace," he said. "When you make a connection to the animal species, it is very hard to forget."
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