. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 36. Close-up view of a microscope slide with hydroid growth. SUMMARY OF FINDINGS 1. Large gooseneck barnacles were found attached to the polyethylene rope floating on the surface. Hydroids were also found on the rope from the surface to the bottom in trace to moderate amounts. A round worm was found on the surface of a concrete sinker. 2. Attachment organisms such as hydroids and Tubularia sp. were found In small amounts on certain metal specimens and on all of the nonmetallic specimens. A single sea anemone was fo
. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 36. Close-up view of a microscope slide with hydroid growth. SUMMARY OF FINDINGS 1. Large gooseneck barnacles were found attached to the polyethylene rope floating on the surface. Hydroids were also found on the rope from the surface to the bottom in trace to moderate amounts. A round worm was found on the surface of a concrete sinker. 2. Attachment organisms such as hydroids and Tubularia sp. were found In small amounts on certain metal specimens and on all of the nonmetallic specimens. A single sea anemone was found securely attached to a metal test panel. Typical fouling organisms found in shallow water, such as bryozoa, barnacles, and tunicates, were not found attached to any of the test panels. 3. Two species of marine borers, identified as Xylophago washingtona Bartsch and Xylophaga duplicate Knudsen, were found in wood specimens. These borers were responsible for the deterioration of the following materials: (1) wood; (2) plastic rods (area under the wood bait pieces) such as Delrin, nylon, polycarbonate. Teflon, cellulose acetate, polyethylene, acrylics, and polystyrene; (3) vinyl tubes; (4) manilo rope specimens; and (5) cellulose acetate butyrate sheet. 44. 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: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber48
