Photo Credit: Reuters/Jessica Bachman
Reuters, October 8, 2010
Some prefer them grilled or steamed, but Russian scientists will now use sea scallops to monitor pollution levels at a Pacific oil terminal.
An enormous sea scallop garden will be set up at the end of this month in Russia's Far East Kozmino Bay, eight time zones east of Moscow. It will be the first Russian port to use mollusks as a water-monitoring instrument.
"Scallops are a very good measure of water pollution because they are very sensitive to contaminants. They absorb and retain impurities" said Natalia Vykhodtseva, the organic chemist at the helm of Kozmino's ecological safety department.
She added that while sea scallops -- which prefer to live at depths of 20-22 meters (64-70 feet) -- are known for their ability to filter contaminants such as oil or heavy metals, the main purpose of the garden at present is to monitor the bay.
"If the monitoring is successful, we have an idea to create large permanent colonies for scallops, mussels and seaweed at the bottom of the bay and use them to filter the water and keep it clean," said Vykhodtseva.
The Kozmino port, launched at the beginning of this year by Russian oil pipeline monopoly Transneft, sits at the bottom of a forested hill range in a bay on the Sea of Japan.
The only export terminal for crude tapped from new East Siberian deposits, it will ship out 200 million barrels next year, meaning the number of tankers calling into port will double, raising greater concern over pollution.
"If oil happens to leak into the water, the scallops will imbibe it, filtering back out the clean water," Vykhodtseva said.
In the same bay, a short distance from the oil terminal, rusting Soviet-era ships, pipelines and old navy infrastructure jut out from the water.
The port's General Director Boris Melnikov said the water-monitoring project begins later this month when marine biologists will lower 80 long tubular nets filled with 10,000 of the meaty sea scallops into the frigid Pacific Ocean waters.
Melnikov added that the scientists are contracted from the Pacific Ocean Institute of Bio-Organic Chemistry in Vladivostok, and that divers will study the bay and plot the scallop garden this week.
SANITARY SEA CREATURES
Since the mid 1990s, scientists at the Far East branch of the Russian Academy of Sciences and the Institute of Bio-Organic Chemistry have studied scallops' chemical and medicinal properties, and their environmental and sanitary capabilities.
Once a month, they will draw up several hanging scallop gardens to analyze and document the mollusks' chemical composition, contamination levels, weight and mortality rates.
Organic sea bacteria helped break down the oil that gushed into the Gulf of Mexico following the rupture of BP's Macondo well, but experts say they do not have the same pollution-cleaning potential in Russia's cold waters.
"The colder the water, the less quickly and efficiently bacteria can work to break down the hydrocarbon. So in Russia, their use is very limited," said Vladimir Chuprov, head of Greenpeace's energy department in Russia.