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Feature Photo
Salpa thompsoni
MARINE 'VACUUM CLEANERS'—Each solitary, fragile, glassy 10-centimeter individual of Salpa thompsoni can produce hundreds of identical offspring when their food is abundant. Salps are planktonic filter-feeders, each one a tireless vacuum continuously clearing phytoplankton cells from the sea by filtering water through a mucus net as it swims. They can occur as individuals (above) or in colonies that form long, connected chains. Bubbles formed in and on this salp when it was caught in cold Southern Ocean water and brought into a lab, where its surrounding water warmed. (Photo by Laurence Madin, WHOI)
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nullnullpolar bear and cubseals on the beach
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nullnullnullResearchers and crew members struggle to deploy a spar buoy in rough seas
The name of the new family of deep-sea crab discovered in March 2005 is <em>Kiwaidae,</em> which comes from Kiwa, a Polynesian goddess of crustaceans. Less formally, the newfound creature has become known as the ?Yeti? crab, after the legendary shaggy ?snowman? of the Himalayas.nullDigging in the mud for science, WHOI/MIT Joint Program graduate student Sheri Simmons collects sediment from a salt marsh so she can look for magnetotactic bacteria.A purple polarizing filter helps WHOI scientists clearly identify each speck of organic and inorganic materials found in cores
nullWHOI engineer Kris Newhall jumps across a melt pond.nullnull
Supraglacial lakes may concentrate water so that it causes the ice to fracture and water to be injected directly to the bed, where the ice meets the ground. Added water would reduce friction between the ice and the ground, causing the ice sheet to flow faster to the ocean. nullnullnull
nullpteropodCarl Wood (left), R/V Atlantis steward, and Ken Feldman, a shipboard technician, are also certified swimmers who help launch and recover the WHOI-operated deep-diving submersible Alvin. In the famed submersible?s 41-year history, only 35 people?with an underwater brand of the ?right stuff??have become Alvin pilots. Salpa thompsoni
FRESH LAVAnullResearchers from WHOI use fluorescent microscopy to positively identify and count Alexandrium fundyense cells in the laboratory in Woods Hole. Visual identification of cells was also done under a microscope at sea.Under a microscope, a deep-sea worm?s tentacles?used for feeding?look like cooked spaghetti. WHOI scientists found this worm, called a terebellid, living at hydrothermal vents on the Galapagos Rift off Ecuador. The researchers conducted experiments to learn why the larvae of deep-sea animals settle in certain places on the seafloor.
Emperor penguinDolphins cavort amid steep waves and ?sea smoke? off Cape Hatteras. The ?smoke? is created when cold winter air meets the relatively warm waters of the Gulf Stream.spherical lesion found in a rib of a dead sperm whalecollect juvenile stages of krill
A cloud of flea-like crustaceans called amphipods hovers around tubeworms encrusted with limpets and mussels at the 9?N vent site in the eastern Pacific.Using optical and electron microscopes, scientists can detect how crystals within rocks change their sizes, shapes, and orientations when the rocks are subjected to heat and stress. shellfish aquaculture demonstration experimentBotrylloides, Didemnum
ABE, the Autonomous Benthic Explorer, was developed by Al Bradley, Dana Yoerger, and colleagues at WHOI.Waves, currents, sand grain sizes, sandbar configurations, water table levels beneath the beach, and other phenomena combine in complex ways, causing very different patterns along the same beach.Thomas Thompson crew members prepare to submerge H2O's first Alvin's manipulator reaches toward a black smoker chimney, seen through the sub's viewport, at 17 degrees S on the East Pacific Rise.
Alvin?s meter-long temperature probe extends toward a community of galatheid crabs perched atop pillow lava and a dense field of mussels.One of the first photographs of a sediment trap sample shows cylindrical fecal pellets and other aggregates, planktonic tests (round white objects), transparent snail-like pteropod shells, radiolarians, and diatoms. nullHonjo's early sediment traps were large, gray cones, often deployed in pairs. (Keith Bradley)
Captain A.D. Colburn, right, crew member Bill Dunn, and others wield their ice mallets on <em>Knorr's</em> foredeck during the Labrador Sea cruise.The freezing wash of large Labrador Sea waves like this one resulted in ice buildup.Scientists aboard R/V Knorr launch a rosette water sampler and conductivity/temperature/depth instrument. Much of the data discussed in this issue was collected by such equipment. Author McCartney is the fellow getting wet at top left. toxic alga Alexandrium tamarense

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