White pelicans were each given 100 mg of polychlorinated biphenyls (Aroclor 1254) per day for 10 weeks. After the treatment period, the bird's food supply was decreased 50% for 2 weeks. Measurements taken from transmission electron micrographs of the pelican's liver tissue revealed hepatocytes of the treated birds averaged 22% larger in crosssection area than those of controls. The number of vacuoles (lysosomes, microbodies) per hepatocyte was 227% greater. the number of mitochondria per hepatocyte was 25% greater while 25% fewer cristae per mitochondrion were present in treated as compared to control birds.
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Stotz, I.J., Greichus, Y.A. The effects of a polychlorinated biphenyl (aroclor 1254) on the white pelican: Ultrastructure of hepatocytes. Bull. Environ. Contam. Toxicol. 19, 319–325 (1978). https://doi.org/10.1007/BF01685805
- Waste Water
- Water Management
- Water Pollution
- Crosssection Area
- Treatment Period