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ScienceDaily (July 15, 2004) CHAPEL HILL
While learning in a course how to extract, amplify and sequence the genetic material known as DNA, University of North Carolina at Chapel Hill graduate students got a big surprise. So did their marine science professors.
In violation of federal law, more than 75 percent of fish tested and sold as tasty red snapper in stores in eight states were other species. How much of the mislabeling was unintentional or fraud is unknown, said Dr. Pet... [More]
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August, 2004 - The increasing acidity of the world's oceans could banish all coral by 2065, a leading marine expert has warned.
Professor Katherine Richardson said sea organisms that produced calcareous structures would struggle to function in the coming decades as pH levels fell
The expert, based in Denmark, told the EuroScience Open Forum 2004 that human-produced carbon dioxide was radically changing the marine environment.
Ice cores show current carbon dioxide... [More]
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November 2004, NewScientist.com - Global warming in the Arctic is happening now, warns the most comprehensive scientific report to date. The reports concludes that the northern ice cap is warming at twice the global rate and that this will lead to serious consequences for the planet.
These include substantial rises in sea level and an intensification of global warming via a positive feedback mechanism, although there may also be benefits. The four-year scientific assessment was conduc... [More]
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National Geographic News
Updated July 12, 2004
By 2050, rising temperatures exacerbated by human-induced belches of carbon dioxide and other greenhouse gases could send more than a million of Earth's land-dwelling plants and animals down the road to extinction, according to a recent study.
"Climate change now represents at least as great a threat to the number of species surviving on Earth as habitat-destruction and modification," said Chris Thomas, a conserv... [More]
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July, 2000 - The biggest ever complete specimen of a secretive squid has been found in Antarctica.
The cephalopod stretched 230 centimetres (7.5 feet) from the hooks on its hunting tentacles to its tail, and weighed nearly 30 kilograms (66 lbs).
The squid, Kondakovia longimana, was measured and photographed, and its beak was removed.
This hard mouthpiece, similar to parrot's beak, is usually the only evidence found of the squid.
"They live deep un... [More]
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9.2004 - As sport fishes go, the blue marlin is a king of sorts - highly prized for its beautiful shape and its ferocious fighting ability when hooked.
That’s the good news. The bad news is that many blue marlin caught in the Gulf of Mexico contain 20 to 30 times the acceptable levels of mercury.
Texas A&M University at Galveston researchers Jay Rooker and Gary Gill are trying to learn why the mercury levels are so high in blue marlin compared to similar fishes an... [More]
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February, 2004 - The Great Barrier Reef off the east coast of Australia will be largely destroyed by 2050 because of rising sea temperatures, according to a new report.
Researchers from Queensland University's Centre for Marine Studies said there was little evidence that corals could adapt quickly enough to cope with even the lowest projected temperature rise of 2C.
Over-fishing and water pollution were also contributing to the destruction of coral on the reef.
T... [More]
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July, 2004 - Strange things are happening in the North Sea. Cod stocks are slumping faster than over-fishing can account for, and Mediterranean species like red mullet are migrating north.
Several sea birds are also in trouble. Kittiwake numbers are falling fast and guillemots are struggling to breed.
And, earlier this summer, hundreds of fulmar (a relative of the albatross) corpses washed up on the Norfolk coast, having apparently starved to death.
Scientists su... [More]
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March 2, 2005 - Hundreds of years ago, the oceans off the coast of North America teemed with cod. A new analysis highlights just how few of the big fish remain. The findings indicate that the volume of cod on Nova Scotia's Scotian Shelf has dr0pped more than 90 percent since the 1850s.
Using daily fishing logs from the 1850swhich recorded the number of fish caught, their size and their location together with a population modeling program, Andrew A. Rosenberg of the University of New H... [More]
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Oct 2004 - Those fragrant soaps and shampoos we casually rinse down the drain may be causing long-term damage to aquatic wildlife downstream by interfering with the animals' natural ability to eliminate toxins from their system, according to a new Stanford University study published by the National Institutes of Health (NIH).
Writing in the NIH journal Environmental Health Perspectives, Stanford scientists described the biological damage that occurred when they exposed California muss... [More]
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| The winners for the 2007 International Smart Gear Competition were announced at the Pacific Marine Expo in Seattle. The Grand Prize of $30,000 went to a team of Rhode Island scientists, fishermen and a net maker, beating out 69 other entries from 22 countries. Their entry was based around a net, aptly named "The Eliminator" which captures haddock while reducing the accidental netting of other species.
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February, 2002 - Deep-sea trawlers are destroying populations of fish and other creatures in the ocean at an alarming rate, according to research presented at the American Association for the Advancement of Science annual meeting in Boston.
Fishermen are now using military sonar to hunt in the deep ocean, but the slow life cycles of the species that live hundreds of metres below the surface mean their populations will collapse if they are exposed to industrial-scale exploitation.
[More]
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February 2002, From New Scientist - The entire North Atlantic is being so severely overfished that it may completely collapse by 2010, reveals the first comprehensive survey of the entire ocean's fishery.
"We'll all be eating jellyfish sandwiches," says Reg Watson, a fisheries scientist at the University of British Columbia. Putting new ocean-wide management plans into place is the only way to reverse the trend, Watson and his colleagues say.
North Atlantic catche... [More]
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August 2002 | Nature - DNA test could help police shark fishing. By Kendall Powell
World shark populations are at risk because of increased demand for shark-fin soup. A new genetic test may help to pinpoint the species that are most at risk and to enforce fishing regulations...
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February 2004 - Plymouth, United Kingdom — Our ship Esperanza has been monitoring UK fisheries for evidence of dolphin deaths in trawler nets. Yesterday we found what we had hoped not to: five dead dolphins, floating in the vicinity of two sets of pair trawlers.
The five adult dolphins had obviously been trapped in the net and drowned in the struggle to escape. All of the animals had cuts to their beaks, fins and flippers. A piece of net was also discovered near the carcasses.<... [More]
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A dolphin washed up on a Guernsey beach is believed to have died because of controversial fishing methods.
La Societe Guernesiaise has teamed up with Greenpeace to monitor pair trawling activity around the island.
The organisations say this is the second dead dolphin they have found in less than a month and the figures are rising each year.
The groups hope to collect enough evidence to get some aspects of the fishing method banned.
La Societe Guernesia... [More]
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June 2002, Exclusive from New Scientist - Tests on whalemeat on sale in Japan have revealed astonishing levels of mercury. While it has long been known that the animals accumulate heavy metals such as mercury in their tissues, the levels discovered have surprised even the experts.
Two of the 26 liver samples examined contained over 1970 micrograms of mercury per gram of liver. That is nearly 5000 times the Japanese government's limit for mercury contamination, 0.4 micrograms per gram.... [More]
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March 30, 2005 | London, UK - A landmark study released today reveals that approximately 60 percent of the ecosystem services that support life on Earth – such as fresh water, capture fisheries, air and water regulation, and the regulation of regional climate, natural hazards and pests – are being degraded or used unsustainably. Scientists warn that the harmful consequences of this degradation could grow significantly worse in the next 50 years.
“Any progress achieve... [More]
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February, 2004 - The world's threatened mangrove forests provide important nurseries for coral-reef fish, according to a new study conducted around Belize and Mexico.
These partially submerged trees act to protect juvenile fish from predation, says UK marine biologist Peter Mumby.
His team tracked more than 100,000 fish from 64 species in coral reefs with and without adjoining mangrove habitats.
They told the scientific journal Nature that fish species were more ... [More]
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March, 2005 - Modern fishing methods have come under repeated attack this week over the impact they have on marine and bird life, even drawing royalty into the row. So is there an environmentally-friendly way to catch a fish?
Prince Charles said the plight of the endangered albatross is the "ultimate test" of whether or not the human race is serious about conservation, on a visit to a bird colony in New Zealand.
The legendary protector of seafarers is fighting for... [More]
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| 03 Dec 2003 - Sydney, Australia - Australia's Federal Parliament today tabled a plan to protect more than 11 million hectares of the Great Barrier Reef Marine Park — creating the largest network of marine sanctuaries on Earth. The plan comes after three years of campaigning by WWF, and will raise protection of the Great Barrier Reef from 4.6 per cent to more than 33 per cent. The Great Barrier Reef, which is larger than the entire area of the UK and Ireland combined, comprises over 2,900 r... [More]
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March 5, 2004 - Dr. J. Craig Venter defied skeptical biologists by decoding the human genome in a scant three years. Now he has set his sights on an even grander goal cataloging all the microbial life in the world.
Dr. Venter said yesterday that he and colleagues had discovered at least 1,800 new microbial species and more than 1.2 million genes by sequencing the DNA from a sample of seawater from the Sargasso Sea, off Bermuda. The findings revealed a diversity of life in the ocean ... [More]
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July 2003, NewScientist.com - Whales in the North Atlantic ocean were once far more abundant than scientists previously supposed, according to a new analysis of the genetic variety in existing populations.
The findings "suggest the need for a fundamental revision of our conception of the natural state of the oceans," say the authors. They may also undermine the claims of whaling nations that existing populations are now big enough for a resumption of some commercial hunting ... [More]
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Dec-2004 - SYDNEY, AUSTRALIA: Coral reefs around the world could expand in size by up to a third in response to increased ocean warming and the greenhouse effect, according to Australian scientists.
"Our analysis suggests that ocean warming will foster considerably faster future rates of coral reef growth that will eventually exceed pre-industrial rates by as much as 35 per cent by 2100," says Dr Ben McNeil, an oceanographer from the University of News South Wales.
[More]
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| Eating seafood high in mercury is hazardous to your health, especially for women and children. The "Got Mercury?" calculator below helps you make healthier seafood choices. Just enter your weight, the seafood type, the amount of seafood you will eat during a week, and click the calculator button. These calculations are based on EPA and FDA data...
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