Ever wondered what kinds of wildlife dominate the world’s seas and oceans? Now there’s an answer, at least in terms of the number of species in different categories. It’s not fish. It’s not mammals. It’s crustaceans!
Scientists aboard the Ocean Watch, a 64-foot yacht on a year-long voyage circling the Americas, are testing the waters as they go. Instruments on the vessel have picked up evidence of ocean acidification, another result of the spewing of carbon dioxide from tailpipes and smokestacks, they say.
Much of CO2 pollution ends up in the atmosphere, but some is absorbed in the ocean, where it is converted into carbonic acid. The average pH of the word’s oceans is about 8.1 and the lower the reading, the greater the acidity.
Scientists are concerned that if pH levels keep falling ocean waters could eat away the shells of organisms large and small. That would put the web of ocean life at risk, not to mention be a potential disaster for land-loving seafood lovers
Ocean Watch has picked up readings of 7.88 in the Gulf of Alaska. Michael Reynolds, the scientist taking the measurements, said the preliminary data may show that the Gulf of Alaska is a primary “sink” for atmospheric carbon.
The good news is that readings have returned to normal as the voyage continues off the coast of South America.
When you’re looking for shrinking packs of multiyear ice in the Arctic Ocean, bizarre things tend to happen. Top Canadian scientist David Barber knows this first hand, as he explained in a presentation in Parliament on Wednesday. Barber said that to all extents and purposes the multiyear ice in the Arctic had already vanished, which could open up the region to shipping and mineral exploitation.
The seven seas get a single U.S. approach in a draft federal plan for oceans released on Thursday (and dated Sept. 10, when it was given to the prez). The report is a response to President Obama’s request for a plan and says a new National Ocean Council should use ecosystem management to take on the task. Previous efforts have been focused on solving individual problems — saving fisheries, stopping water pollution — which did not always match.
It’s almost creepy watching this video of a colossal squid slowly thawing out in a giant tub at the Museum of New Zealand. If this were a horror movie, after all, it would suddenly start flailing around with its monstrous tentacles.