- Time to save the tuna | Susan Lieberman
Stocks of Atlantic bluefin tuna are on the brink of collapse thanks to overfishing, largely for our sushi. We must stop fishing nowAtlantic bluefin tuna are one of the most remarkable fish in the sea. Their amazing biology allows them to dive down to 1,000m and race through the water at extraordinary speeds, migrating thousands of kilometres across the ocean each year. Yet, today, overfishing – some of it illegal, unregulated and unreported – has taken an enormous toll.Many of the world's foremost marine scientists now believe that populations of Atlantic bluefin are on the brink of collapse (pdf). In fact, recent studies by fisheries scientists show that the species has declined more than 80% since 1970. Efforts at protection, though, continue to fall short.Fuelled largely by the lucrative global market in sushi and sashimi, the high value of bluefin has placed significant political pressure on those responsible for managing global tuna populations. When it has counted most, the international community has allowed short-term profits to trump the long-term health of our oceans. One notable example happened this spring at the 2010 meeting of the Conference of the Parties to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Every year, billions of plants and animals are taken from the wild and sold as food, pets, souvenirs and medicines. CITES was adopted in the 1970s to help balance the needs of commerce and conservation – ensuring that trade in animal products doesn't endanger a species' very existence. At its heart is a rigorous scientific review process that provides governments with objective information to evaluate when overexploitation merits international protection. However, when a proposal was submitted to CITES last M 大西洋のクロマグロの株式は、当社の寿司主は、乱獲と崩壊のおかげで危機に瀕している
- Scientists target U.S. East Coast rocks for CO2 storage
Scientists say buried volcanic rocks along the heavily populated coasts of New York New Jersey and New England as well as further south might be ideal reservoirs to lock away carbon dioxide emitted by power plants and other industrial sources A study this week in the Proceedings of the National Academy of Sciences outlines formations on land as well as offshore where scientists from Columbia University s Lamont Doherty Earth Observatory say the best potential sites may lie 科学者たちはニューヨークニュージャージー州、ニューイングランドの人口が沿岸だけでなく、さらに南に沿って貯水池の理想的な可能性があります二酸化炭素発電所やその他の工。源論文集、国立の研究は今週から放出される距離をロックする火山。類の埋葬と言うとしては、コロンビア大学の研究者ラモントドハティー地球観測所掲載海洋科学アカデミーの土地に地層の輪郭を最高の潜在的なサイトにあるかもしれないと言う
- Cyclone Yasi likely to have ravaged Great Barrier Reef
Scientists fear the storm has pulverised coral into rubble and left a swath of destructionOn its way to ravaging cities and towns in north Queensland, severe tropical cyclone Yasi will almost certainly have left a swath of destruction on the Great Barrier Reef off Townsville.Early last month, as floods struck southern Queensland, I accompanied a team of divers from the Australian Institute of Marine Science on an expedition to a 300-mile part of the reef – a fifth of the 1,400-mile-long World Heritage Area.The researchers dived 13 reefs – from Myrmidon, which is 75 miles out to sea, to areas around the inshore Palm Island group, just off the mainland. Much of what we saw was spectacular and showed the reef recovering from a decade of devastation caused by coral bleaching and crown-of-thorns starfish, both of which have been responsible for large areas of coral mortality.It may be weeks or months before scientists can fully survey and assess the damage from cyclone Yasi but, based on the effect of previous large cyclones, they will not be optimistic. Tropical cyclones generate huge waves, which pulverise coral reefs into rubble.In March 2009, category four tropical cyclone Hamish travelled in an unusual path from north to south, tracking parallel to the coast and not making landfall. It is estimated to have affected a quarter of the Great Barrier Reef.A year later I was able to dive in one of the areas hit by cyclone Hamish, also with scientists from the Australian Institute of Marine Science. Much of what we saw at the Swains, at the southern end of the Great Barrier Reef, was denuded of life. Numerous coral bommies, many the size of big cars, had been lifted up on to the reef flat by the force of the storm. It can take years, or even decades, for such a coral ecosystem 科学者たちは、嵐が瓦礫にサンゴの粉状にしている恐れ、destructionOnの散布を北クイーンズランド州の都市や町を無道への道左、重度の熱帯低気圧Yasiは、ほぼ確実にTownsville.Early先月オフグレートバリアリーフの破壊の散布を置いてきたんだ13潜って1400マイルの長さ世界遺。貼ら研究者の第五 - 、洪水がクイーンズランド州南部を襲ったとして、私はサンゴ礁の300マイルの部に遠征オーストラリア海洋科学研究所のダイバーのチームに同行サンゴ礁 - 沿岸パームアイランドグループ周辺の海から75マイルミュルミドーン、から、ちょうど本土オフにします
- Study into dolphin deaths
Marine scientists are examining the deaths of 20 baby dolphins whose carcasses have washed ashore in Mississippi and Alabama this year. The unusually large number of young dolphin deaths, most of them in the past week, are being... 海洋科学者が死体今年ミシシッピ州、アラバマ州の漂着は20赤ちゃんイルカの死を検討している
- Warming link to sea lion exodus
Marine scientists are reporting that a colony of sea lions, previously unique to the Galapagos Islands, has unexpectedly decamped 1400km southeast to an island just off the coast of Peru in what may be another symptom of global warming.According... 海洋科学者はアシカのコロニーは、以前は、ガラパゴス諸島に固有の、突然の島へペルーの海岸のすぐそばに何をグローバルwarming.Accordingの他の徴候であるかもしれないの1400キロ南東暗ましたが報告されて...
|
