Arctic Ocean Food Chain Disrupted as Key Tipping Point Passed
8 Articles
8 Articles
der Standard AT
der Standard DEChanges in the Arctic fauna are due to the lack of nutrients for the plankton. Responsible is the melting of the ice
Arctic nitrate drops after sea-ice loss—what changed?
Arctic tipping point: nitrate levels fall as sea ice collapses An analysis of Arctic related environmental chemistry indicates that the region crossed a tipping point beginning around 2009 , when nitrate levels in waters leaving the Arctic fell steadily . The change is described as a clear shift…
A picture of the Arctic from 2014, showing how the melting ice exposes coastal regions in the Arctic.Image: AP National Oceanic and AtmosphereThe melting sea ice in the Arctic not only changes the landscape at the North Pole, but apparently the entire ecosystem of the Arctic Ocean.A new study now shows that the loss of the ice has drastically reduced a central nutrient in the sea.At the center of the study is nitrate: a vital nutrient for plankt…
Environmental News Network - Arctic Food Chain Hit as Tipping Point Passed
An irreversible shift in the chemical make-up of the Arctic Ocean driven by climate change is disrupting the region’s food chain, a study suggests. Widespread loss of Arctic sea ice has led to a sharp fall in levels of a key nutrient, affecting populations of plankton, fish, seabirds and marine mammals, researchers say. Their analysis reveals that exposure to sunlight of vast shallow regions of the ocean previously covered by ice fuels a process…
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