129 Butler, A. C, and R. R. Sibbald (1986) Isolation and gas 

 chromatographic determination of saturared and polycyclic aromatic 

 hydrocarbons in mussels. Bull. Environ. Contam. Toxicol. . 37(4):570-8. 



130 Butler, P. A. (1973) Organochlorine residues in estuarine mollusks, 

 1965-72 -- National Pesticide Monitoring Program. Pest. Monit. J. . 

 6(-):238-246. 



131 Butler, P. A. (1969) The significance of DDT residues in estuarine fauna. 

 In: Chemical Fa llout: Current Research on Persistent Pesticides. Proc, 

 Rochester Conf. on Toxicity. Rochester, NY, 1968. Charles C. Thomas Pub., 

 Springfield, IL. 205-20. 



132 Butler, P. A., C. D. Kennedy, and R. L. Schutzmann (1978) 

 Pesticide residues in estuarine mollusks, 1977 versus 1972 - National 

 Pesticide Monitoring Program. Pest. Monit. J. . 12(3):99-101. 



133 Butler, P. A., A. J. Wilson, and A. J. Rick (1960) Effect of 

 pesticides on oysters. Proc. Shellfish. Assoc . 51(-):23-32. 



134 Byrne, C. J., and L. R. DeLeon (1986) Trace metal residues in biota 

 and sediments from Lake Pontchartrain, Louisiana. Bull. Environ. Contam. 

 Toxicol. . 37(1):151-8. 



135 Cahnmann, H. J., and M. Kuratsune (1957) Determination of 

 polycyclic aromatic hydrocarbons in oysters collected in polluted water. 

 Anal. Chem. . 29(-):1312-17. 



136 Cajal Medrano, R., and E. A. Gutierrez Galindo (1981) 

 Concentration et distribution du DDT dans les huitres Crassostrea gigas et 

 Ostrea edulis sur la cote de Basse Californie. Rev. Int. Oc6anogr. M6d. . 

 LXII(-):39-45 (French). 



137 Calabrese, A., R. S. Collier, D. A. Nelson, and J. R. Maclnnes 



(1973) The toxicity of heavy metals to embryos of the American oyster 

 Crassostrea virginica. Mar. Biol. . 18(-):162-6. 



138 Calambokidis, J., J. Mowrer, M. W. Beug, and S. G. Herman 



(1979) Selective retention of polychlorinated biphenyl components in the 

 mussel, Mytilus edulis. Arch. Environ. Contam. Toxicol. . 8(3):299-308. 



139 Campos, N. H. (1988) Selected bivalves for monitoring of heavy metal 

 contamination in the Colombia Caribbean. In: Metals in Coastal Environments 

 of Latin America . Springer-Verlag, New York, 270-5. 



140 Capelli, R., V. ContardI, B. Fassone, and G. Zanicchi (1978) 

 Heavy metals in mussels (Mytilus galloprovincialis) from the Gulf of La 

 Spezia and from the promontory of Portofino, Italy. Mar. Chem. . 6(-): 

 179-85. 



22 



