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Tag: "marine" at biology news

Renewed dolphin slaughter prompts new campaign

... in a long and painful death for these intelligent marine mammals. The Japanese government has made the unsupported claim that the animals compete with local fishermen for limited supplies of fish and that the drives are in fact a means of pest control. Also, the "Act for Dolphins" consortium maintains t...

Humpback whales have brain cells also found in humans

Cetaceans, the group of marine mammals that includes whales and dolphins, have demonstrated remarkable auditory and communicative abilities, as well as complex social behaviors. A new study published online November 27, 2006 in The Anatomical Record, the official journal of the Am...

Living laboratory found on shoreline statues

...sure to the environment, currents and sea level on marine settlements. Research leader, Dr Leonie Robin...e transit they will be cleaned of all trace of the marine life they have housed on Merseyside ?just as they were cleaned when they arrived in Crosby from thei...

'Fruit fly dating game' provides clues to our reproductive prowess

...th 300,000 years before the mass extinction. Small marine animal microfossils were left virtually unscathed,...er. "In all these localities we can analyze the marine microfossils in the sediments directly above and below the Chicxulub impact layer and cannot find an...

Ocean temperature predicts spread of marine species

Scientists can predict how the distance marine larvae travel varies with ocean temperature ?a key...vation and management of fish, shellfish and other marine species ?according to a new study from the University of North Carolina at Chapel Hill. Most marine...

Far more than a meteor killed dinos

...th 300,000 years before the mass extinction. Small marine animal microfossils were left virtually unscathed,...er. "In all these localities we can analyze the marine microfossils in the sediments directly above and below the Chicxulub impact layer and cannot find an...

Steep oxygen decline halted first land colonization by Earth's sea creatures

...hell is typically thought of as protection for the marine creature, he said, but it turns out the shell actually channels water across the gill to deliver oxygen. "An unshelled mollusk has a far greater respiratory problem than a shelled mollusk," Ward said. "In many groups the shell is an active part of...

How many genes does it take to learn? Lessons from sea slugs

Scientists analyzing the genomics of a marine snail have gotten an unprecedented look at brain m...onships of this very ancient and highly successful marine animal," said Dennis Steindler, Ph.D., executive director of UF's McKnight Brain Institute, who did ...

Sandia research to focus on early detection of harmful algal blooms

... and shellfish, eventually harming or even killing marine mammals and humans that consume tainted shellfish....evices that could be fielded by oceanographers and marine biologists as part of their regular monitoring systems. In addition to Sandia's Lane and VanderNoo...

Bacterial 'switch gene' regulates how oceans emit sulfur into atmosphere

...e oceans. The gene helps determine whether certain marine plankton convert a sulfur compound to one that ris...en the ocean and atmosphere," said Mary Ann Moran, marine microbial ecologist at the University of Georgia. Moran and her colleagues published their findings ...

Mobile DNA part of evolution's toolbox

...ica. The coelacanth is a descendant of the ancient marine organism that gave rise to the terrestrial vertebrates more than 360 million years ago. Humans are therefore separated from the coelacanth by hundreds of millions of years of evolution, yet the two organisms still share critical DNA sequences. In t...

Evolution reveals an independent route for diversity in animal form

Researchers have found that Cnidaria, a group of marine animals noted for diverse morphology among its constituent species, actually lacks the ancient "Hox" gene system that is essential for the development of most other animals . The finding is surprising because the Hox system is largely responsible fo...

RNA found in the cellular centrosome of surf clams

...earch center where scientists use locally abundant marine organisms like surf clams and their eggs as research models. Clam eggs are modeled as simple versions of human cells, and biologists who study cell division value them for several reasons, according to Palazzo. The eggs develop fast, entering the pro...

Report warns about carbon dioxide threats to marine life

...matically altering ocean chemistry and threatening marine organisms, including corals, that secrete skeletal...pheric carbon dioxide on these organisms, known as marine calcifiers, and recommends future research for determining the extent of the impacts. "It is clear ...

Corals switch skeleton material as seawater changes

...ing conclusion drawn by a Johns Hopkins University marine geologist, writing in the July issue of the journa...s they build are inhabited by tens of thousands of marine animals, plants, algae and bacteria that make up the coral reef ecosystem, which is one of the plane...

All the eggs in one basket

...ly on turtle grass, while hawksbill turtles prefer marine sponges. "The decline in green turtles has led to a loss of productivity available to the animal food chain ?including commercial reef fishes ?reducing the protein-rich food available for the Caribbean people," say the researchers. When the haw...

UNH researcher restoring oyster reefs to Great Bay

...seagrass beds or coral reefs, support a variety of marine life. "Oyster reefs provide all these nooks and crannies for other organisms," he says, including sport fishes. "If we improve the habitat for oysters we can improve the environment." ...

Triple threat polymer captures and releases

...als that she developed more than four years ago as marine "antifouling" coatings that inhibit marine organisms such as barnacles from attaching to the hull of ships to now capture fragrance molecules a...

New research finds surveys of larval-stage organisms effective for measuring marine biodiversity

...ially when it comes to vast and often inaccessible marine environments. To date, surveys of species diversit...rch from Boston University has found that studying marine life in its larval phase with DNA barcoding is a valuable way to estimate biodiversity. Using this...

Researchers appeal for new regulations to save coral reefs from live fish trade

...l journal Science. Twenty of the world's leading marine scientists, including a team from the Department of Zoology, University of Cambridge, have called for action by governments to halt the unsustainable plunder of the world's ocean resources. For decades tropical coral reefs have battled for surviva...

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