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Ocean Ecosystem Free Essays - StudyMode
In the words of comedian Jon Stewart: we’re screwed. But I don’t want to give out that message, especially to young people who have to face this future. So I try to find kernels of optimism. Still, the numbers seem inescapable. Ecologist Aldo Leopold came up with the concept of carrying capacity: the idea that the land is capable of sustaining only a certain number of animals over the long term. Humans surpassed our planet’s carrying capacity decades ago. We’ve been able to postpone the inevitable train wreck, but we are heading toward disaster. The depletion of resources, the accumulation of toxins, global warming, the acidification of the oceans — none of it bodes well.
"Many ocean acidification studies show reduced calcification at high CO2, but do not examine the consequences for organismal performance. Our ecomaterial approach establishes these linkages between calcification and performance (and ultimately fitness) which are vital for long-term predictions of how organisms will fare in a high CO2 world."
World Ocean Observatory | Welcome
“With this study we have shown for the fist time that evolutionary processes may have the potential to act on climate change relevant time scales and thereby mitigate negative effects of ongoing ocean acidification” says evolutionary biologist Thorsten Reusch and adds “These findings emphasize the need for a consideration of evolutionary processes in future assessment studies on the biological consequences of global change”.
The citation of the paper is:
Marshall, K.N., Kaplan, I.C., Hodgson, E.E., Hermann, A.J., Busch, D.S., McElhany, P., Essington, T.E., Harvey, C.J., and Fulton, E.A. 2017. Risks of ocean acidification in the California Current food web and fisheries: ecosystem model projections. Glob. Change Biol. doi:10.1111/gcb.13594.
Free carbon footprint Essays and Papers - 123helpme
The acidification of the ocean expected as seawater absorbs increasing amounts of carbon dioxide from the atmosphere will reverberate through the West Coast’s marine food web, but not necessarily in the ways you might expect, new research shows.
Uptake of carbon dioxide by the oceans is not a harmful phenomenon , but excess of it leads to a reduction in pH thereby altering the fundamental seawater chemistry, commonly known as ocean acidification ....
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