. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LIBRARY. ABSORPTION AND EXCRETION OF COPPER ION DURING SETTLEMENT AND METAMORPHOSIS OF THE BARNACLE, BALANUS AMPHITRITE NIVEUS x FRANCIS J. BERNARD AND CHARLES E. LANE Institute of Marine Science, University of Miami, Miami 49, Florida For hundreds of years ships have been sheathed with metallic copper or coated with copper-containing paints to prevent or minimize surface fouling. Sheathing is clearly subject to mechanical failure and once breached exposes the entire struc- ture to attack. Copper-containing paints are effect
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LIBRARY. ABSORPTION AND EXCRETION OF COPPER ION DURING SETTLEMENT AND METAMORPHOSIS OF THE BARNACLE, BALANUS AMPHITRITE NIVEUS x FRANCIS J. BERNARD AND CHARLES E. LANE Institute of Marine Science, University of Miami, Miami 49, Florida For hundreds of years ships have been sheathed with metallic copper or coated with copper-containing paints to prevent or minimize surface fouling. Sheathing is clearly subject to mechanical failure and once breached exposes the entire struc- ture to attack. Copper-containing paints are effective only as long as enough toxic substance leaches from the coating to establish and maintain lethal concen- trations within the barrier layer of water through which members of the fouling complex must approach the structure. These coatings gradually decrease in effectiveness during their service life, because the diffusion gradients necessary to sustained leaching are at best temporary. Millions of dollars annually and countless hours of ship time are devoted to protecting hulls from settling barnacles. The general biology of the fouling problem, with primary emphasis upon the complex of fouling organisms, has been intensively studied in this laboratory for several years. It is the object of this communication to describe the pathways of copper absorption, circulation, and elimination by settling barnacles, and to discuss the mode of action of this toxic substance. In a previous paper (Bernard and Lane, 1961) we have described the early stages in metamorphosis of Balanus ainphitritc nivcus. Histological localization of copper in developmental stages was determined by the dithio-oxamide () method of Okamoto ct al., described by Gomori (1952). Specimens representing all the settling stages from normal sea water were fixed in absolute ethanol, stained for copper and then lightly stained with hematoxylin and eosin. Whole mounts, together with serial sections cut 5 and 10 mic
Size: 1587px × 1574px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
