. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 9. Round worm found attached to the concrete sinker. Recovery of STU When the STU was recovered from the sea by means of grapple and placed aboard the deck of the ship, a tangled mass of black polyethylene-covered wire cable and polypropylene rope materials was found covering one section of the STU (Figure 10). Only a very light growth of hydroids was found attached to these materials. On the upper section of the STU, a large rock estimated to weigh 500 pounds (Figure 11) was found trapped in the STU frame, resting
. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 9. Round worm found attached to the concrete sinker. Recovery of STU When the STU was recovered from the sea by means of grapple and placed aboard the deck of the ship, a tangled mass of black polyethylene-covered wire cable and polypropylene rope materials was found covering one section of the STU (Figure 10). Only a very light growth of hydroids was found attached to these materials. On the upper section of the STU, a large rock estimated to weigh 500 pounds (Figure 11) was found trapped in the STU frame, resting on top of a metal test specimen rack. There was a thick deposit of manganese dioxide coating over the rock (Figure 12), and the coating was covered with a growth of very small calcareous tube worms. The rxDck is now in the Smithsonian Institution, United States National Museum, Washington, D. C. A smaller rock specimen was also found wedged in between the STU frame. It was riddled by rock-boring molluscs, but neither live borers nor their shells were found in these borer holes. However, attached to the rock were live annulate worms in tubes made of mud and debris; several colonies of pink encrusting bryozoa; a solitary coral (Reference 6 mentions deep sea coral forms); glass sponges; limpets; 12. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Muraoka, James S; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
