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Predicting the oceans of the future with a mini-lab by efwegbe erergeer
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Predicting the oceans of the future with a mini-lab |
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Working with an international team, the scientists -- includingStanford Woods Institute for the Environment Senior Fellows JeffKoseff, Rob Dunbar and Steve Monismith -- found a way to createfuture ocean conditions in a small lab-in-a-box in Australia'sGreat Barrier Reef. The water inside the device can mimic thecomposition of the future ocean as climate change continues toalter Earth. Inside the mini-lab, set in shallow water two to six feet deep,elevated levels of water acidity were created to test the reactionof a few local corals. (Other corals in the vicinity were notadversely affected.) It was the first controlled ocean acidification experiment inshallow coastal waters. The scientists' study, published in Scientific Reports , describes how they simulated predicted future ocean conditionsoff Heron Island in Australia's Great Barrier Reef, representing anew paradigm for analyzing how reefs respond to oceanacidification.
Focusing conservation efforts "Installing systems like this at reefs and other aquaticenvironments could be instrumental in helping us identify howecosystems will change and which locations and ecosystem types aremore likely to remain robust and resilient," said Lida Teneva,a Stanford doctoral student studying with Dunbar. "From this, we can determine which habitats to focus ourconservation efforts on as strongholds for the future," Tenevasaid. Oceans absorb more than a quarter of all atmospheric carbondioxide, concentrations of which are increasing at a rate twice asfast as at any time in the past 800,000 years or more. This leadsto increasingly intense water acidification and widespread coralreef destruction.
The potential loss is tremendous: reefs provideaquaculture, protein and storm protection for about 1 billionpeople worldwide. Standard in situ studies of ocean acidification have multipledrawbacks, including a lack of control over treatment conditionsand a tendency to expose organisms to more extreme and variable pHlevels than those predicted in the next century. So, in 2007, theMonterey Bay Aquarium Research Institute developed a system thatallows for highly controlled semi-enclosed experiments in the deepsea. For their recent study, Stanford researchers modified thesystem for use in coral reefs. The complex device, the Coral Proto -- Free Ocean Carbon Enrichment(CP-FOCE) system, uses a network of sensors to monitor waterconditions and maintain experimental pH levels as offsets fromenvironmental pH.
It avoids many of the problems associated withstandard in situ ocean acidification studies, and -- unlike lab andaquarium experiments -- makes it possible to study amid naturalconditions such as seasonal environmental changes and ambientseawater chemistry. The study was funded by the Australian Research Council, theQueensland Government, the National Science Foundation and thePacific Blue Foundation. I am an expert from Gifts & Crafts, usually analyzes all kind of industries situation, such as paper chinese lanterns , corporate gifts delhi.
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