BIODIVERSITY: Unraveling the Mysteries of Salmon Migration

Global Geopolitics Net Sites / IPS
Friday, October 31, 2008

All rights reserved, IPS – Inter Press Service, 2008.

Stephen Leahy

UXBRIDGE, Canada, Oct 31 (IPS) – Tiny juvenile salmon have been electronically tracked for the first time from their natal rivers in the Rocky Mountains 2,500 kilometres north to Alaska.

”We’re turning the lights on in the oceans,” enthused Jim Bolger, a marine biologist at the Vancouver Aquarium.

”It’s very exciting, with this new technology scientists can finally see how changes in the oceans are affecting fish and other species,” Bolger told IPS.

The new technology is a series of electronic acoustic receivers planted along the ocean bottom stretching 1,750 kilometres from Oregon through British Columbia and north to the Alaskan panhandle. Fish and other species have transmitters implanted and the receivers pick up their individual signals as they pass.

The transmitters or tags are now as small as an almond and can be surgically implanted in juvenile salmon less than 14 centimetres in length. As they approach, the receivers log the tag’s unique serial number, the date and time. Movement patterns of individual animals, including direction and speed, can be reconstructed using the time of detection at different receivers and other listening curtains.

”Several mysteries of fish migration and survival may soon start to unravel,” said Bolger, the executive director of what is called the Pacific Ocean Shelf Tracking (POST) Project, a part of the international Census of Marine Life

One of those mysteries is where salmon go after they leave the rivers where they are born.

To try and answer that question, researchers implanted tags in 1,000 juvenile Chinook salmon in 2006 and followed their journeys in the Columbia and Fraser Rivers using the POST receivers. Among the many studied, two tagged juveniles survived a 2,500-km trip that took more than three months — from the upper reaches of the Snake River (a tributary of the Columbia River) in Idaho, out to sea then north along the continental shelf to Alaska according to a study published this week in the journal Public Library of Science Biology,

Most surprising of all, said Bolger, was that salmon from the undammed, free-flowing Fraser River in Canada suffered the same high levels of mortality as those battling their way through the eight dams of the Columbia River system. In fact, more survived in the Columbia once distance or travel time was taken into account — and survival was greater during migration within the hydropower system than below the dammed section.

”It raises the question of unknown factors in the Fraser system that may be having an impact on the juveniles,” said Bolger, one of the co-authors of the study.

Results of previous studies on white sturgeon also surprised researchers when they learned that the big, bottom-feeding fish migrated from the Sacramento River in California to the Fraser nearly 1,000 kms north in Canada.

”We thought the Fraser sturgeon were local and that it was okay to fish them,” Bolger said. In the U.S., they are carefully regulated but no one knew they migrated into Canada.

”Wherever future research leads on those questions, the electronic and acoustic technology has demonstrated itself as a useful tool for obtaining unique scientific data of importance in a number of public policy arenas,” said David Welch of Kintama Research, Nanaimo, British Columbia who led the salmon research effort.

Similar electronic listening curtains will have been strung together along the northeast coast by the end of this year. Two others being considered are between Florida and Cuba and another between Mexico’s Yucatan Peninsula and Cuba. The hope is to cover much of the world’s continental shelf one day, said Jesse Ausubel of Rockefeller University, who is a member of POST’s management board.

”We have a working technology, and it’s affordable. The hope is to have a monitoring system around the world,” Ausubel told IPS.

This type of tracking network can reveal the mysteries about where fish go and how many survive in the oceans, and can help fisheries management and conservation efforts. There are enormous controversies along the coastal zones of Africa and other places about which country ”owns” certain fish stocks, he said.

”Knowing where fish go is a key question that needs to be answered,” Ausubel said.

And knowing where species migrate, feed and breed is vital for conservation and management efforts. Within the next decade Ausubel hopes there will be an Ocean Tracking Network that covers continental shelves as well as the open ocean.

A different tracking device is needed for fish like sharks that traverse entire oceans. The open ocean tag is a like a business card — it not only identifies the specific fish, it records all sorts of data about where it has been and data from any other tagged fish that were nearby. That way when any of the fish are close enough to a floating receiver, all this information will be downloaded. For species that break the surface, the data will be transferred via satellite.

The first of these new tags will be implanted in salmon sharks near Hawaii in 2009. If all goes well, scientists will be able to determine their migration route to the Gulf of Alaska. And with salmon also tagged, there might be the first real-time study of the predator-prey interactions, Ausubel said.

”These results from North America have global implications and will be of interest in Chile, Russia, Japan, India, Ireland — indeed every nation where fish migrate between fresh and salt water,” concluded Victor Gallardo of Chile, the Census of Marine Life’s vice chair.

OIL SANDS-PART 3: Biggest Customer Has Second Thoughts

Global Geopolitics Net Sites / IPS
Monday, October 20, 2008

All rights reserved, IPS – Inter Press Service, 2008.

Chris Arsenault*

FT. MCMURRAY, Oct 20 (IPS) – As Canada’s tar sands extraction expands full steam ahead, a perfect storm of internal and external opposition could derail some of the voracious growth at the world’s largest energy project.

Together, skyrocketing construction costs, falling crude prices, increasingly vocal opposition from some native groups, and a little known section of the 2007 U.S. Energy Independence and Security Act all threaten growth projections in northern Alberta.

”If I was an investor, I wouldn’t want to take the risk of putting money into the tar sands right now,” said Liz Barratt-Brown, a senior attorney at the Natural Resources Defence Council, an NGO leading U.S. lobbying efforts against Canada’s heavy oil industry.

Canada is the largest foreign exporter of oil to the United States, with Alberta’s tar sands sending roughly 500,000 barrels to the U.S. every day. Losing access to the U.S. market would significantly affect expansion plans.
[Read more...]

OIL SANDS-PART 2: ”Where I Come From Is Ground Zero”

Global Geopolitics Net Sites / IPS
Friday, October 17, 2008

All rights reserved, IPS – Inter Press Service, 2008.

Chris Arsenault*

FT. MCMURRAY, Oct 17 (IPS) – The wheels of the Caterpillar 797B, the world’s largest truck, are always going round and round at Shell Canada’s Albian Sands mine.

The massive dump trucks, with wheels standing twice the size of a person and tires costing some 40,000 dollars apiece, carry tar sand 24 hours a day, seven days a week.

”There isn’t a lot of work in Newfoundland [a traditionally poor province on Canada's Atlantic coast], so you can do pretty well out here,” Brian Paley, a mechanic who fixes and inspects the three-storey trucks, told IPS.

Paley says he enjoys the work; he earns a six-figure salary and the rugged northern Alberta landscape allows him to snowmobile in the winter and camp during the summer.

However, some natives living downstream from the operation say the tar sands are destroying ecosystems that give people like Brian Paley so much pleasure.

”We’ve lost 108 people since 1990, the elders say they buried one person per year in the old days,” said Michael Mercredi, a member Athabasca Chipewyan/Dene First Nation from Fort Chipewayn, a community of some 1,200 aboriginals located downstream from the tar sands. Many community members died of rare cancers they blame on the tar sands.

Like many young people from Ft. Chipewayn, Mercredi knows the tar sands well; he spent four years making big money driving trucks at one of the mines. ”I just walked off the job one night, I thought ‘this is wrong, we’re destroying our own land’,” said Mercredi.

”Where I come from is ground zero,” Mercredi, who now works gathering traditional knowledge from elders in the community, told IPS

Dr. John O’Connor, Ft. Chipewayn’s former physician, catalogued a string of cases of cholangiocarcinoma, an uncommon cancer of the bile duct among members of the community. The disease normally strikes 1 in 100,000 and Dr. O’Connor reported six cases in Ft. Chip over a short period, in addition to other strange ailments. He sent results to the local toxicologist’s office. That’s when the pro-industry Alberta government stepped in.

In 2006, Alberta Health and Wellness filed a complaint with the College of Physicians and Surgeons of Alberta, alleging that Dr. O’Connor had engendered mistrust and raised undue alarm in Ft. Chipewayn. O’Connor left Alberta for Nova Scotia while the College of Physicians investigated the charges. He was cleared of wrongdoing in 2008 but decided not to return to Alberta.

”Dr. O’Connor was our martyr,” said Mercredi. ”He sacrificed part of his career to inform people about what was happening to us.”

While the Chief of Ft. Chipewayn has spoken out vigorously about the social and environmental impacts of rapid tar sands expansion, other First Nations, including the Ft. Mackay Band, have embraced the mega-project because they say it brings jobs, money and development to the region.

Mercredi and other critics the of development say fish from the Athabasca River, which supplies water to the tar sands, are exhibiting strange deformities and mutations. In August, a group of children pulled a fish with two mouths from Lake Athabasca, near an area where tar sands tailings water had leached into the soil.

”One of the companies admitted to our community that a tailings pond was leaking into a stream,” said Mercredi.

Elders from Ft. Chipewayn say the mutant fish is ”a sign of what will happen to human life,” according to testimony from a water conference held in the community in August.

Water is crucial for tar sands extraction: separating one barrel of oil from the sand requires at least three barrels of water.

According to peer-reviewed scientific articles written by Dr. David Schindler, Killam Memorial Chair and Professor of Ecology at the University of Alberta, the whole province and neighbouring regions will soon face ”a crisis in water quantity and quality with far-reaching implications.” Tar sands producers extract 2.5 million barrels of water per day from the Athabasca River.

Water becomes toxic during the oil extraction process and ends up in massive tailings ponds. In April, more than 400 ducks died after the flock landed on a tailings pond, owned by Syncrude, the largest tar sands consortium.

The largest tailings pond, controlled by Syncrude, contains 540 million cubic metres of poison waste water, making it the second largest dam on earth, according to the U.S. Department of the Interior.

”We are the most efficient user of water in the oil sands,” said Steve Gaudet, the environmental manager for Syncrude, a joint venture between Imperial Oil, ConocoPhillips, Petro Canada, Nexen and several smaller players.

During a tour of Syncrude’s main site, Gaudet told IPS that the consortium will eventually be able to ”reclaim” the tailings water, making it safe again, by mixing tailings with fresh water and gypsum, so the water becomes a solid.

”The industry has not demonstrated the ability to reclaim tailings ponds,” countered Simon Dyer from the Pembina Institute.

In March, the government of Alberta issued the first land reclamation certificate for a tar sands operator to Syncrude, for successfully reclaiming a 104-hectare parcel known as Gateway Hill. The company frequently showcases the area to visitors. A herd of bison graze nearby as Syncrude employees pass around boxed lunches to a delegation of journalists touring the area.

But, according to the Pembina Institute’s Simon Dyer, Gateway Hill ”isn’t representative of the challenge industry is facing” because the area is ”just topsoil that was stripped away” in previous decades. Over the long term, Dyer says the companies have to incorporate poison tailings into a dry landscape, and they have not proven their ability to do so.

While the gargantuan trucks trolling the land at Syncrude and Albian Sands can leave sceptical journalists in awe, they are not the most important tool for tar sands extraction. Roughly 20 percent of the oil here in northern Alberta can be extracted through surface mining; the rest requires underground techniques know as in-situ.

These underground techniques disturb less surface land, but critics say they are particularly energy intensive and wasteful. The energy equivalent of one barrel of oil is required to produce three barrels of oil from the tar sands, according to the Pembina Institute’s Dan Woynillowicz.

Cyclic steam stimulation, colloquially referred to as ”huff and puff”, is one popular in-situ method where oil companies blast steam into underground bitumen deposits through pipes for a month at a time. Once the bitumen is hot enough, other pipes will suck the oil back up to the surface.

Michael Mercredi says that First Nations are in a unique position to slow or stop tar sands development, but that doesn’t seem likely in Alberta’s current political climate. If anything will slow the world’s largest industrial project, and its voracious appetite for water and land, it will likely be factors far away from this province’s muskeg flatlands.

While most oil company officials are mum on exact figures, it is estimated that extracting one barrel of oil from the tar sands costs between 25-35 dollars. If the world economy hits a prolonged recession and the price of oil drops below 50 dollar a barrel, investors may look away from the tar sands.

Without a major recession, or political changes in United States, the largest consumer of tar sands crude, it seems likely that Caterpillar 797Bs will continue hauling oil 24/7, regardless of the environmental costs.

*This is the first of a three-part series investigating the political, environmental and social impacts of Canada’s oil sands development. Chris Arsenault holds the 2008/09 Phil Lind Fellowship at the University of British Columbia. A portion of his visit to Alberta was minded and financed by Shell Canada.

OIL SANDS-PART 1: Showdown at Ft. McMoney

Global Geopolitics Net Sites / IPS
Thursday, October 16, 2008

All rights reserved, IPS – Inter Press Service, 2008.

Chris Arsenault*

FT. MCMURRY, Canada, Oct 16 (IPS) – The sun rises in a bright, red line over flat land, small lakes, boreal forest and peat bogs as our small double engine plane bumps through early morning turbulence between Edmonton and Ft. McMurray, Canada.

With more than 173 billion barrels of oil recoverable with current technology and more than 100 billion dollars in committed capital investment, the Alberta tar sands around Ft. McMurray are considered the largest industrial project on earth. Unlike conventional crude, oil here isn’t pumped, it’s mined.

Current developments could yield 21 billion barrels of oil, according to the Canadian Association of Petroleum Producers. In 2007, the tar sands produced 1.2 million barrels of oil every day. By conservative estimates, this number will rise to 3.5 million barrels per day by 2020.
[Read more...]