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Tag: "sea" at biology news

Ocean virus identified in human blood samples

...ng and sometimes causing health problems in seals, sea lions, whales, and perhaps fish, shellfish and other species. In general, the marine environment is "a relatively under-explored potential reservoir of human pathogens," the researchers said in their study. History suggests these viruses have rarely...

Red Tide causes sea turtle die-off in El Salvador

...e last year directly caused the deaths of some 200 sea turtles, according to test results released today ...xin, which is produced by the species of algae and sea plankton that cause the phenomenon known as "Red Tide." "The rapid response and subsequent diagnos...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

Researchers are enlisting seals, sea lions, tunas, and sharks to serve as ocean sensors...he results of tagging studies involving California sea lions, northern elephant seals, tuna, salmon sharks, and albatross in the North Pacific, as well as ...

MIT: Oceans are a major gene swap-meet for plankton

New evidence from open sea experiments shows there's a constant shuffling of genetic endowments going on among tiny plankton, and the "coinage" they use seems to be a flood of viruses, MIT scientists report. The research, led by MIT Professor Sally W. Chisholm, is uncovering ...

Hooked on fishing, and we're heading for the bottom, says scientist

... additional push to move his message from the open sea to the political beachhead. But he emphasizes that research alone won't solve the crisis. It's time for dramatic political leadership to move from a global marine tragedy to a future with bountiful fish. Says Dr. Pauly: "Reclaiming the ocean and its...

The world's deepest dinosaur finding - 2256 metres below the seabed

... years, ever since the time the North Sea wasn't a sea at all, but an enormous alluvial plane. It is merely a coincidence that the remains of the old dinosaur now see the light of day again, or more precisely, parts of the dinosaur. The fossil is in fact just a crushed knucklebone in a drilling core ?a ...

Sea coral's trick helps scientists tag proteins

The glow emitted by a variety of sea coral helped Russian scientists harness the protei... tag--called Dendra because it is derived from the sea coral Dendronephthya--first shows up as a green glow, highlighting the otherwise invisible protein t...

Molecule by molecule, new assay shows real-time gene activity

...oss a population of cells looks somewhat akin to a sea of cellular paparazzi -- serves as an indication of that single protein molecule's production. "Dr. Xie's experiments are the first to obtain quantitative, real-time information on protein expression in living cells at the single-molecule level," sa...

How marine reserves are giving coral reefs a helping hand

...age the health of the reef. More than 20 years ago sea urchins in the Caribbean were wiped out by disease, leaving parrotfish as the main grazer of reef surfaces. The fish use their teeth to remove seaweed from the reef which allows new corals to settle and grow.This grazing process is essential to the h...

El Nino events affect whale breeding

...m other studies that following El Nino, changes in sea temperatures affect the availability of krill, a s...opulations are showing signs of recovery, however, sea surface temperatures in parts of the Southern Ocean have increased by 1°C over the last 50 years and...

Exotic crab poised for widespread UK invasion

...ilar situation." Mitten crabs can be found in the sea or rivers because they are catadromous - meaning t... mainly live in freshwater but must migrate to the sea to breed. Their potential for widespread colonisation is increased by the fact they can cross dry l...

Leave it to salmon to leave no stone unturned

...me of the nutrients that salmon returning from the sea would normally provide, it entirely ignores the fact that live salmon play a diverse suite of roles in streams, including helping to disperse those nutrients." ...

UMaine teams with fishermen to study affects of trawling on seafloor ecology

... groundfish trawling on the complex ecology of the sea floor in the Gulf of Maine. Based on the gradual increases in complexity and diversity of seafloor communities that have been protected from bottom trawling for two, four, and six years, Watling estimates that it will take roughly a decade for the s...

Paleontologists learn how not to become a fossil

...he gauntlet is down: look at other groups. Look at sea urchins. Look at birds. Look at mammals. Look at flowering plants," he said. "I'd like to think that we've produced a template for analyzing other groups. And of course as those analyses begin to accumulate, we'll have a much clearer picture of what'...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...egister for the Gulf of Maine and neighboring deep sea waters was prepared by the Huntsman Marine Science...iving in the soft sediments that cover much of the sea floor and microscopic bacteria and viruses that live throughout the ecosystem. While most are invis...

Not just the birds

...a small island with a large perimeter touching the sea receives more nutrients from marine ecosystems tha...ands. "By disconnecting the nutritional link from sea to land, the introduction of foxes to the Aleutians has reduced or eliminated the significance of th...

Uncovering sex-change secrets of black sea bass

..., peers into a big blue plastic tub. Inside, black sea bass circle slowly in the dim light. The converted...e, and home to Berlinsky's latest research. Black sea bass feature prominently on many menus, but wild populations of the fish are in decline and their av...

'Dead zone' summer killed billions of ocean state mussels

...a, or oxygen depletion, which literally suffocates sea life. While some evidence of this "dead zone" coul...tant, and troubling, finding for water quality and sea life in the bay. Hypoxia can start when fertilizer or sewage spills into coastal waters, carrying n...

Restoring seagrass beds: Is it for the birds?

.... Dindo and volunteers from AmeriCorps plant 1,000 sea oats on the beaches of Robinson Island. Over the ...e a combination of educational signage, replanting sea oats, and a seemingly endless supply of fertilizer will bring the habitats around Robinson Island ba...

Scientist warns of threat to last stronghold of endangered turtle

...backs have been decimated by incidental capture at sea and overexploitation so it's vital that we protect the Atlantic population. This project is crucial to our understanding of the geographical range of the leatherback as so little is currently known about their travels. We think turtles from Gabon c...

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