The Weekly Dive Vol. 26
Dive into the latest edition of The Weekly Dive, where we bring you the big ocean news!
Even as sales of plastic bottles rise, high oil prices drive shift to bioplastics. Sales of bottled water in the US rose 4.1% in 2011, reaching an all-time high of 9.1 billion gallons for the year, despite high cost and efforts to reduce use. Meanwhile, many manufacturers of plastic products are seeking alternatives to cut costs. [Care2; The Los Angeles Times]
Fukushima radiation found in tuna off US coast. Bluefin caught off of the US West Coast four months after the disaster were found to contain ten times higher levels of cesium-134 than usual, though still deemed below levels of concern for human consumption. [The Atlantic Wire]
DNA study: Marine reserves beneficial to fisheries. Forensic DNA profiling of game fish on the Great Barrier Reef gave the first genetic evidence of a “spillover effect,” in which the bounty of a reserve has effects outside its boundaries. Though reserves covered just 28% of the reef area, they supplied half of all juvenile fish. [Science Daily]
Peru dolphin deaths may be linked to sonar testing. Contradicting government reports, a marine veterinarian found evidence that the mass casualty resulted from seismic tests used in oil exploration. Necropsies revealed bleeding and fractures in the ears suggesting hearing damage, as well as symptoms of the bends. [The New York Times]
Navy to triple sonar testing, despite documented damage to marine mammals. Though a recent Navy report documented sonar risks to marine mammals, it is seeking a permit for exemption from the Marine Mammal Protection Act, and plans to reduce the threat by using detailed data on location and movements of sound-sensitive dolphins and whales. [Cape Cod Times]
70,000 harp seals killed in Canada in this year’s hunt. This year’s Newfoundland seal hunt resulted in the clubbing deaths of nearly twice as many seals as last year, though it remained well below catch limit of 400,000. [The Huffington Post]
World Oceans Day is June 8th! This and other news in the latest Weekly Dive video below!