In the aftermath of the Deepwater Horizon disaster in April, marine chemist Elizabeth Kujawinski recognized that a technique she had developed for entirely different reasons could readily be adapted to track the chemical components of oil from the spill, as well as the dispersant used to try to clean it up.
Kujawinski brought into play a device with a powerful 7-tesla magnet (seven times stronger than the average MRI) and an intimidating name: a Fourier transform ion cyclotron resonance mass spectrometer, or FT-ICR-MS. It can detect and measure vanishingly tiny amounts of an individual compound in a mixture containing tens of thousands of compounds.
Kujawinski spearheaded the grant proposal to install the FT-ICR-MS at Woods Hole Oceanographic Institution (WHOI) in 2007. Since then she and WHOI colleagues Melissa Kido Soule and Krista Longnecker have been using it to develop highly sensitive analytical methods to reveal the mishmash of organic matter, dissolved in seawater, that supplies food for marine microbes.
In research published online Jan. 26 in the American Chemical Society journal Environmental Science & Technology (ES&T), Kujawinski and colleagues showed that the highly powerful mass spec and their method were also well suited to detect, measure, and definitively identify minute quantities of chemical compounds from the Deepwater Horizon spill, including a compound in the dispersant Corexit. The dispersant has been used often in small amounts on the ocean surface to break down oil clumps and make the oil easier to clean up. But never has so much been used before, and never before has the dispersant been released in the deep ocean.
Read the rest at Oceanus – Woods Hole Oceanographic Institution
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
NOAA, Partners, Launch New Website Highlighting African-American Maritime Heritage
/in Ocean Newswire/by Ocean DoctorNOAA’s Office of National Marine Sanctuaries, in partnership with Murrain Associates, Inc., and the National Association of Black Scuba Divers (NABS), today launched Voyage to Discovery, a new website and education initiative highlighting untold stories of African-Americans and the sea.
Read more of the NOAA News Release.
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
NOAA Investigations Into Mislabeling Seafood Protects Consumers and Fishermen
/in Ocean Newswire/by Ocean DoctorSeafood consumers and the law-abiding fishermen who catch that seafood gained a big victory last week when a complex NOAA Office of Law Enforcement investigation into conspiracy, misbranding and smuggling resulted in two guilty pleas in federal court.
Read more of the NOAA News Release.
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
GULF UPDATE: Want to Help the Gulf of Mexico? Kill Your Lawn. | ExpeditionDispatch from 1planet1ocean (Vol. 4 No. 3)
/in ExpeditionDispatch Archive/by Ocean Doctor28 June 2010
(Vol. 4 No. 3) GULF OIL DISASTER UPDATEFrom “The Ocean Doctor” blog:
Since 1948, radio station KBMW has been serving as the “Voice of the Southern Red River Valley,” a tri-state area including North Dakota, South Dakota and Minnesota, boasting some of the “richest farmland in the United States.” So why did they want to interview a city boy who lives for salt water? To update their listeners on the BP oil spill disaster in the Gulf of Mexico, and most importantly, tell their listeners how they could help. Like so many of us, they feel a deep connection to the Gulf, even from more than 1,200 from water’s edge, and the daily images of oil erupting from the BP well has led to palpable frustration. It’s hard to watch and not be able to help. Truth is, KBMW’s listeners are more connected than they may realize, and they can materially help the Gulf of Mexico — and their own neighborhoods, by just getting outside and doing some gardening.
Read on…
From “The Ocean Doctor” blog: NOAA announced further fishing closures in the Gulf of Mexico due to the BP Deepwater Horizon oil spill. Now a total of 37 percent of federal Gulf waters are off limits to fishing, an area of nearly 89,000 square miles where NOAA considers fish and shellfish potentially too toxic for human consumption. For a region where commercial fishing is a vital part of the economy, the future of the region grows increasingly uncertain with each barrel of oil spewed into the deep Gulf waters. There’s a solution: Rebuild the Gulf of Mexico fishery on land. Investing in “next-generation” sustainable land-based, closed-containment recirculating aquaculture systems (RAS) could keep the Gulf region in the seafood business profitably, while creating green jobs and reducing fishing pressure on wild stocks.
What is “next-generation” RAS aquaculture? From the outside, many of the systems look like an ordinary warehouse. Inside, they’re a specially-constructed system of pumps and filters that recycle 99 percent of their water and grow healthy and heathful fish without chemicals, antibiotics or genetically-modified anything. Read on…
from the BP Deepwater Horizon Oil Spill
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The Ocean Foundation’s Cuba Marine Research & Conservation Fund
Learn more about Cuba’s vulnerability to this catastrophic oil spill.
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GULF UPDATE: Two Videos of What’s at Stake | ExpeditionDispatch from 1planet1ocean (Vol. 4 No. 2)
/in ExpeditionDispatch Archive/by Ocean DoctorRead more
Cuba Oil Bid a Bad Idea, Florida Says
/in Featured, Ocean Newswire/by Ocean DoctorFlorida lawmakers are seeking ways to stop Cuba from drilling for oil off its shores, including meeting with the Spanish firm working with Cuba.
BY LESLEY CLARK, Miami Herald
WASHINGTON — With Cuba poised to drill for oil off its coast as early as this spring, Florida lawmakers are renewing efforts to block it, citing fears about damage to the state’s beaches in the event of a major oil spill.
Sarasota Republican Rep. Vern Buchanan has introduced legislation that would allow the U.S. Interior Department to deny U.S. oil and gas leases to companies involved in Cuba’s oil drilling operations. Sen. Bill Nelson plans to re-introduce legislation to pull the U.S. visas for executives of such companies. Nelson also is hoping to “outline our position” in a yet-to-be-scheduled meeting with officials from Spanish energy giant Repsol, which is working with Cuba.
Read the rest at MiamiHerald.com…
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
Hawaii: Massive Release of Sea Urchins Planned to Combat Invasive Seaweed on Coral Reefs (UnderwaterTimes.com)
/in Ocean Newswire/by Ocean DoctorHawaii: Massive release of sea urchins planned to combat invasive seaweed on coral reefs. (UnderwaterTimes.com)
Ocean Today
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
After the Oil Spill, Finding a Drop in the Ocean: New, Highly Sensitive Method Can Track Dispersant in Gulf of Mexico
/in Ocean Newswire/by Ocean DoctorIn the aftermath of the Deepwater Horizon disaster in April, marine chemist Elizabeth Kujawinski recognized that a technique she had developed for entirely different reasons could readily be adapted to track the chemical components of oil from the spill, as well as the dispersant used to try to clean it up.
Kujawinski brought into play a device with a powerful 7-tesla magnet (seven times stronger than the average MRI) and an intimidating name: a Fourier transform ion cyclotron resonance mass spectrometer, or FT-ICR-MS. It can detect and measure vanishingly tiny amounts of an individual compound in a mixture containing tens of thousands of compounds.
Kujawinski spearheaded the grant proposal to install the FT-ICR-MS at Woods Hole Oceanographic Institution (WHOI) in 2007. Since then she and WHOI colleagues Melissa Kido Soule and Krista Longnecker have been using it to develop highly sensitive analytical methods to reveal the mishmash of organic matter, dissolved in seawater, that supplies food for marine microbes.
In research published online Jan. 26 in the American Chemical Society journal Environmental Science & Technology (ES&T), Kujawinski and colleagues showed that the highly powerful mass spec and their method were also well suited to detect, measure, and definitively identify minute quantities of chemical compounds from the Deepwater Horizon spill, including a compound in the dispersant Corexit. The dispersant has been used often in small amounts on the ocean surface to break down oil clumps and make the oil easier to clean up. But never has so much been used before, and never before has the dispersant been released in the deep ocean.
Read the rest at Oceanus – Woods Hole Oceanographic Institution
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
Shark Nations Failing on Conservation Pledges
/in Ocean Newswire/by NewswireBy Richard Black, Environment correspondent, BBC News
The wildlife trade monitoring network Traffic and the Pew Environment Group say most of the main shark fishing nations do not manage fisheries well.
Ten years ago, governments agreed a global plan to conserve sharks.
An estimated 100 million sharks are killed each year, with nearly a third of species at risk of extinction.
Many fisheries target the fins for use in shark fin soup; and a number of countries, including the US, have recently passed measures aimed at regulating the trade.
Neither of the two countries catching the most sharks – Indonesia and India – has yet finalised national plans of action for protecting sharks.
Read the rest…
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
Fertilizing Oceans Seen Fruitless in Climate Fight
/in Ocean Newswire/by Ocean DoctorBy Alister Doyle, Environment Correspondent
OSLO | Mon Jan 31, 2011 12:39pm EST
OSLO (Reuters) – Fertilizing the oceans to boost the growth of tiny plants that soak up greenhouse gases is unlikely to work as a way to slow climate change, a U.N.-backed study showed on Monday.
Such “geo-engineering” schemes would be hard to monitor and were likely to store away only small amounts of carbon dioxide, the main greenhouse gas, according to a report by the Intergovernmental Oceanographic Commission.
“Geo-engineering schemes involving ocean fertilization to affect climate have a low chance of success,” according to the 20-page study by the Commission, part of the U.N. Education, Scientific and Cultural Organization (UNESCO).
The review, by scientists in seven countries, said 13 experiments in recent years showed faded optimism that iron dust or other nutrients could spur growth of microscopic marine plants and permanently suck carbon dioxide from the atmosphere.
Read the rest…
Note: Newswire stories are provided as a courtesy of OceanDoctor.org. Content of these articles is provided by external sources.
Jean-Michel Cousteau on the Gulf, His Father and Our Oceans’ Future
/in Podcast/by Ocean DoctorJanuary 31, 2011: Our special guest this week is Jean-Michel Cousteau, who leads Ocean Futures Society, a nonprofit marine conservation organization which he founded in 1999 to honor his father’s legacy to carry on his pioneering work in exploring, filming and protecting the oceans.? Jean-Michel has produced over 80 films, received the Emmy and the Peabody Award among others. He was honored with the Environmental Hero Award by the White House. In February 2002, he became the first person to represent the Environment in the Opening Ceremony of the Olympic Games in Salt Lake City. Jean-Michel led the effort to return Keiko, the captive killer whale of “Free Willy” film fame, to the wild. With his team, Jean-Michel has been working for months to document the impact of the BP Deepwater Horizon oil spill disaster. Also: Our in-depth coverage of the National? Commission on the BP Deepwater Horizon Oil Spill continues.
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