National Fisherman

When the blowout of the Deepwater Horizon oil well sent some 400,000 tonnes of methane into the Gulf of Mexico in April 2010, many scientists and others feared it would linger. So researchers were pleasantly surprised when studies suggested that methane-eating bacteria had consumed nearly all of it by August.
 
But new evidence suggests an alternate scenario. Research published today in Nature Geoscience finds that although these bacteria consumed much of the gas, they slowed down considerably after a few months. In fact, bacteria only consumed roughly half of the methane, according to co-author author Samantha Joye, a microbial biogeochemist and oceanographer at the University of Georgia in Athens.
 
The team analyzed more than 1,000 water samples collected over more than 105,000 square kilometres during 10 expeditions to the gulf between March and December 2010.
 
The analysis finds that about two weeks after the blowout, methane oxidation rates – an indication of how much methane the bacteria were consuming – began rising, and increased steadily until early June. But later that month, the feeding frenzy had subsided, with rates tumbling from their peak by one or two orders of magnitude.
 
“We saw a boom and bust,” says Joye. That decline came, she says, despite ample remaining methane for the bacteria to nosh on. 
 
Read the full story at the Scientific American>>

National Fisherman Live

National Fisherman Live: 12/16/14

In this episode, Bruce Buls, WorkBoat's technical editor, interviews Long Island lobsterman John Aldridge, who survived for 12 hours after falling overboard in the dead of night. Aldridge was the keynote speaker at the 2014 Pacific Marine Expo, which took place Nov. 19-21 in Seattle.

Inside the Industry

NOAA, in consultation with the Department of the Interior, has appointed 10 new members to the Marine Protected Areas Federal Advisory Committee. The 20-member committee is composed of individuals with diverse backgrounds and experience who advise the departments of commerce and the interior on ways to strengthen and connect the nation's MPA programs. The new members join the 10 continuing members appointed in 2012.

Read more...

Fishermen in Western Australia captured astonishing footage this week as a five-meter-long great white shark tried to steal their catch, ramming into the side of their boat.
 
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