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Of four common corals and algae tested, three still produced shells in conditions that mimic oceans if atmospheric CO 2 concentrations reached 1000 ppm. David Biello reports.
Marian Locksley's insight:
Experiments undertaken in Hawaii, Moorea and Okinawa give new hope, at least in the Pacific. That doesn't mean ocean acidification won't be bad for corals and algae. But it does mean that across the Pacific some of these organisms can tough it out. Whether other organisms, including us humans, could thrive in a 1000 ppm CO2 world is another question.
A ray once considered a pest on the shores of Japan turns out to be two species – with serious implications for future conservation, writes Quentin Wheeler (Ray once considered a pest in #Japan turns out to be two species
It's generally agreed that liquid water and a stable atmosphere are the minimal requirements for life. But new research shows that oceans play a vital role in stabilizing and moderating climates on Earth-like planets.
Joining with the folks from the Atlantic Coast to say 'NO' to offshore drilling. Your signature counts, no matter where you live. The ocean belongs to all of us. Let's keep it BLUE! Please share! via @debcastellana ~ thxu! x
News@Northeastern Where are the whales? News@Northeastern When it comes to monitoring the abundance and behaviors of whales, most research and conservation efforts rely on visual observations.
Marian Locksley's insight:
Previous acoustic work used a handful of omnidirectional hydrophones to home in on a whale’s exact location. But in that case, the method could only localize whale sounds in the vicinity of the hydrophones. Ratilal’s method allows her to probe further out into the sea and also to localize deep diving whales not visible on the surface.
The team also used the method to find a larger group of whales swimming on the deeper continental slope south of Cape Cod. In that case, they were able to use their data to separate the individual sounds of about six or seven different whales. Ratilal said. “We’re characterizing and distinguishing the different whales’ clicks,” she explained.
The towed arrays aren’t strangers to the ocean. Both the Navy and the oil industry use towed arrays for their various geophysical surveys, which Ratilal believes could be used to simultaneously protect whales from large marine vessels as well as provide useful monitoring data using her approach. “If they’re already out there with their arrays, they could be getting seismic prospecting data and at the same time they could sense the whales in the vicinity and make sure they’re at a safe distance,” she said.