Barnacles, growth

Coal tar-epoxy coatings are resistant to a wide range of chemicals and chemical solutions, including freshwater, seawater, distilled water, sewage, detergents, dilute mineral adds and alkalis, barnacle growth, exhaust... 

Prevent barnacle growth seaweeds Taste discourages being eaten Natural pesticide... 

Most surfaces in prolonged contact with seawater and freshwater are susceptible to the attachment of marine growths, eg, algae and barnacles. 

Thomas, P.G. and D.A. Ritz. 1986. Growth of zinc granules in the barnacle Elminius modestus. Mar. Biol. 90 255-260. 

The result is that barnacles are often the first macrofoulers to colonize a protected surface.100 Once growth of barnacles on toxic metal coatings is initiated, the surface rapidly fails because barnacles act as nontoxic platforms for other organisms. As a result of these kinds of field evidence, the U.S. Navy supported basic barnacle research for almost four decades, and barnacles were the only macrofoulers included in initial studies of natural product antifoulants supported by the U.S. Navy. Most of this work was conducted by the Costlow group at the Duke University Marine Laboratory.47... 

Tributyltin (TBT) is used as an anti-fouling compound to prevent the growth of microbes and fungi, and to prevent the attachment of barnacles and other organisms to ships hulls. TBT has been found toxic towards aquatic organisms, including fish and marine mammals, rapidly accumulating in them [296]. 

Losada, F.J., 1974. Studies on growth and shell deposition in barnacles of the genus Balunus. Ph.D. Thesis, Duke University, Durham, NC, 120 pp. 

Tin appears in seafood as butylated tin compounds and as methyltin compounds in leachate from plastics. Tributyltin was used for many years to control barnacles and other marine growths on the hulls of ships. These organisms attached to the ships increase the drag on the ships and make them less energy efficient. Tributyltin leaches from the paint into the surrounding waters and can reach levels of concern in eonfined areas, such as harbors. Filter feeding organisms, such as oysters and mussels, as well as detritus feeders accumulate butyltin compounds and these compounds... 

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