On the North Pacific Ocean more than 1,000 kilometres from the nearest human settlement, the Russian research vessel Kaganovsky is finding evidence that our polluting influence is indeed global.The…
On the North Pacific Ocean more than 1,000 kilometres from the nearest human settlement, the Russian research vessel Kaganovsky is finding evidence that our polluting influence is indeed global.
There are also opportunities to observe and record great detail about the ocean conditions faced by the salmon. During each of the 50 test fisheries being conducted during the expedition, Russian scientist Gennady Kantakov is collecting microplastics from the surface layer of the ocean using a one-metre wide fine mesh neuston trawl, according to a mission update from Neville, oceanographer Svetlana Esenkulova and U.S. fisheries scientist Laurie Weitkamp.
Microplastics have already entered the food web, because they are so fine that even the smallest animals in the ocean can eat them if they are mistaken for food. Larger pieces of plastic are sometimes consumed by sea birds and large marine animals.“Not the species I expected to see out here, but possibly a component of the offshore group,” said Neville.
There is little evidence of contact with predators in the salmon caught in the Kaganovsky’s 450-metre net, according to the expedition’s organizer Dick Beamish.
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