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Isle Royale National Park chief put foot down on invasive species
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How zebra mussels and quagga mussels changed the Great Lakes forever
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The 11 largest lakes on the planet hold more than 50 percent of the surface freshwater that millions of people and many more living organisms require to survive. A new study highlights how these lakes absorb carbon dioxide from the atmosphere and how their ability to do so has changed over the last two decades.
The study used a combination of satellite observation and fieldwork to establish a key factor in the role of lakes as carbon sinks, places where carbon dioxide is absorbed from the atmosphere. Phytoplankton are tiny algae that photosynthesize or make energy from sunlight. Part of photosynthesis is carbon fixation, where inorganic carbon dioxide is converted into an organic compound. The amount of phytoplankton and the rate they photosynthesize give the carbon fix rate of a body of water like a lake. Estimating phytoplankton primary production can indicate how much carbon dioxide these algae pull from the air.
Date Time
World’s Largest Lakes Reveal Climate Change Trends
Sixteen years of remote sensing data reveals that in Earth’s largest freshwater lakes, climate change influences carbon fixation trends.
NASA-funded research on the 11 largest freshwater lakes in the world coupled field and satellite observations to provide a new understanding of how large bodies of water fix carbon, as well as how a changing climate and lakes interact.
Scientists at the Michigan Tech Research Institute (MTRI) studied the five Laurentian Great Lakes bordering the U.S. and Canada; the three African Great Lakes, Tanganyika, Victoria and Malawi; Lake Baikal in Russia; and Great Bear and Great Slave lakes in Canada.