Nature

Biomass of Mesopelagic Fish Ten Times Higher than Earlier Estimates

Biomass of Mesopelagic Fish Ten Times Higher than Earlier Estimates

A team of researchers along with the Spanish National Research Council (CSIC) revealed that mesopelagic fish living between 650 and 3300 feet under the ocean surface are nearly ten times more than earlier thought. It is not easy to ascertain their actual number as they live deep.

Researchers from Malaspina Expedition traversed 32,000 nautical miles and measured distance between 40 degree North and 40 degree South from 200 to 1,000 meters Deep Ocean. They declared that the biomass of the mesopelagic fish could be at least 10 times higher than it was previously believed.

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Salmon’s Inherited Magnetic Map Ability helps in Navigation

Salmon’s Inherited Magnetic Map Ability helps in Navigation

The research published in the Journal Current Biology reveals that young salmon have an inborn GPS that guides them to search their feeding grounds as well as their homes. The fish use earth’s magnetic field to navigate waters and changes their swimming directions when they experiences north or south magnetic field in their ocean range.

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Black Hole Began Heating Gas Later than Cosmologists’ Estimates

Black Hole Began Heating Gas Later than Cosmologists’ Estimates

If a new research has to be believed, black holes started heating gas throughout the space much later than was previously expected. The black holes, which are formed from the first stars in our universe, also left a clear signature in radio waves.

Because of the fact that universe about 400 million years back was filled with hydrogen gas, the best way to find formation of first stars is to measure emission of hydrogen using radio waves.

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U.S. Fish and Wildlife Service Planning to ‘Delist’ Oregon Chub from Endangered List

U.S. Fish and Wildlife Service Planning to ‘Delist’ Oregon Chub from Endangered

This would happen for first time in the 40-year history of the Endangered Species Act as the Fish and Wildlife Service is planning to remove two-inch Oregon minnow from the list of endangered species.

The small Oregon fish found only in backwaters of the Willamette valley was listed endangered by the Wildlife Conservation Service about 20 years back. The fish fell drastically short in their population because of the entry on nonnative fish like largemouth bass and the drainage of wetlands for development at that time.

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Jehol Biota Research Suggests Pompeii-style Volcanic Eruption in China

Jehol Biota Research Suggests Pompeii-style Volcanic Eruption in China

Nanjing University Research team has found wide variety of fossils under rock seam termed as Yixian and Jiufotang formations in Liaoning province. The well preserved, 120 million year old fossils of wide variety of living creatures, have been found at five locations. As per researchers, the volcano erupted and created Pompeii-style fossils revealing even scales, feathers, hair or skin.

Palaeontologists across the world would be excited to review the fossils of early birds and mammals, turtles, lizards, frogs, plants, insects, dinosaurs and pterosaurs.

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Sea Shepherd’s Bob Barker Collides with Japanese Nisshin Maru on Sunday

Sea Shepherd’s Bob Barker Collides with Japanese Nisshin Maru on Sunday

The militant anti-whaling campaigners Sea Shepherd’s ship, the Bob Barker, collided with a Japanese harpoon vessel, Nisshin Maru, on Sunday. The Netherlands government has been asked by the Japanese government to take necessary preventive measures against the Dutch-registered vessel, Bob Barker. Yoshihide Suga, Chief Cabinet Secretary in Tokyo, blamed the Sea Shepherd’s ship to be responsible for this accident.

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Researchers Discover Novel Species of Tiny Fish with Giant Head in Idaho and Montana

Researchers Discover Novel Species of Tiny Fish with Giant Head in Idaho and Mon

On Thursday, US Forest Service research team reported a new species of tiny fish with giant head in Mountain Rivers of Idaho and Montana.

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Illegal Drug Trafficking in Central America Hurting Rain Forests

Illegal Drug Trafficking in Central America Hurting Rain Forests

After setback of narcotics trade in Mexico in 2007, a gradual increase in rate of deforestation has been reported because of drug smuggling through landing strips of forests. Drug trafficking in Central America is increasingly affecting forests of Honduras and Guatemala.

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Climate Change Impacts Magellenic Penguin Chicks

Climate Change Impacts Magellenic Penguin Chicks

A 27-year study on world’s biggest colony of Magellenic penguins has come up with findings that changes in climatic conditions is affecting lives of penguin chicks. About 200,000 breeding penguin pairs come along the Atlantic coast of Argentina Punta Tombo from September to February every year.

Dee Boersma, a biology Prof. at the University of Washington, said that increase in floods and intense heat is having adverse effect on lives of small young birds as per the trends noticed for the past 50 years.

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Frogs Mating Calls Could be Green Signal to Attract Frog-Eating Bats

Frogs Mating Calls Could be Green Signal to Attract Frog-Eating Bats

Researchers from the United States, the Netherlands and Panama have come up with the interesting fights of the animal kingdom for food and for the desire to reproduce. They found that frog’s mating calls, which it makes to attract its partner, has deadly unintended effect-attracting frog-eating bats.

Researchers cited an example of tiny brown, tungara frog, which is an amphibian native to Central America. This tiny creature sings unique mating calls to call its mating partner and produces two kinds of calls i.e. simple and complex.

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