![]() ![]() “The seamount’s summit was densely populated with sponges,” said his colleague Autun Purser. “Sixty-nine per cent of our images showed trails of sponge spicules, many of which led to live animals.” “There are no strong currents in the Arctic deep sea that could explain the structures found on the sea floor,” said expedition leader Prof Anthe Boetius. ![]() The sponge trails ran in all directions – even uphill. Their high-resolution images were captured at the Karasik Seamount, about 220 miles from the North Pole. The researchers, led by the Alfred Wegener Institute and Max Planck Institute for Marine Microbiology in Germany, were on an expedition aboard the icebreaker Polarstern, using an ROV and a towed-camera system. Also read: SPONGES: GLUE OF THE REEF, Viruses bow to killer sponges and First self-lit sponges identifiedīut scientists studying deep-dwelling marine life in the Arctic have been surprised to discover sponges leaving trails in seabed sediment indicating that they roam about – albeit only a few centimetres a year. ![]()
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