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>>

Inside the Industry

The American Fisheries Society is honoring recently retired Florida Institute of Oceanography director Bill Hogarth with the Carl R. Sullivan Fishery Conservation Award — one of the nation's premier awards in fisheries science - in recognition of his long career and leadership in preserving some of the world's most threatened species, advocating for environmental protections and leading Florida's scientific response to the Deepwater Horizon oil spill.

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The Marine Stewardship Council has appointed Eric Critchlow as the new U.S. Program Director. Critchlow will be based in the MSC US headquarters in Seattle. He is a former vice president of Lusamerica Foods and has over 35 years in the seafood industry.

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