Distant and dark depths of the oceans have long been considered safe from everything happening on the surface, including from global warming. But now it turns out that climate change did change the rhythm of life at the bottom.
Henry Helm and his colleagues at the Scripps Institution of Oceanography for several years exploring the seabed off the coast of California, at a depth of 4100 meters. They collect samples of sediment were measured in their content of organic matter, and then periodically launch the camera and take pictures of the animals living there.
At the bottom of the ocean governs the sea cucumber. These animals exist under the "rain" and organic particles are of different colors, including purple. Recently, scientists have reported that different species of sea cucumber (differentiated by color) are more prevalent at different times, and that the population fluctuation coincide with changes in the availability of certain types of food and major climatic events, including the El Niño. For example, Elpidia minutissima, uninviting sea cucumber color sedimentary rock is most common in the years before El Niño, when food is not enough. And he almost disappears as soon as the El Niño increases the amount of food. In contrast, white cucumber, usually a rare, thriving in these times of plenty.
The work of American scientists showed that the abyss is not immune from climate change at the top and that climate changes are reflected quickly enough. And Rudder doubt that El Niño — the only climatic phenomenon that affects the state of the deep sea.
News.Battery.Ru — Accumulator News, 26.07.2004 12:51