News tagged with concentration

How many organisms do live in this aquatic habitat?

The aim of this new measurement method is to estimate the distribution of aquatic animals using droplet digital polymerase chain reaction (ddPCR) in order to quantify the number of target DNA copies present. This method focuses ...

dateApr 06, 2015 in Ecology
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Warmest oceans ever recorded

"This summer has seen the highest global mean sea surface temperatures ever recorded since their systematic measuring started. Temperatures even exceed those of the record-breaking 1998 El Niño year," says Axel Timmermann, ...

dateNov 14, 2014 in Earth Sciences
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Biology trumps chemistry in open ocean

Single-cell phytoplankton in the ocean are responsible for roughly half of global oxygen production, despite vast tracts of the open ocean that are devoid of life-sustaining nutrients. While phytoplankton's ability to adjust ...

dateNov 24, 2014 in Earth Sciences
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Reconstructing the African humid period

During the end of the last ice age, there were dramatic changes in rainfall across a vast swath of Africa. As the world's large ice sheets receded in northern and southern latitudes, rainfall in much of Africa increased dramatically, ...

dateDec 05, 2014 in Earth Sciences
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