certain estuarine animals. Chesapeake Science, 



vol. 6, No. 3, p. 150-161. 



Caged blue crabs, oysters, clams, and 

 various species of fish were exposed to 

 different concentrations of herbicides in 

 the field. Of compounds tested, only 2,4-D 

 acetamide appeared dangerously toxic; all 

 caged animals died in the milfoil plot on 

 which it was applied. 



Redfield, Alfred C. 



1934. The haemocyanins. Biological Reviews, 

 vol. 9, p. 175-212. 



Haemocyanin content and oxygen capacity 



of blue crab blood. 



Redfield, Alfred C, Thomas Coolidge, and 

 Archer L. Hurd. 



1926. The transport of oxygen and carbon 

 dioxide by some bloods containing hemo- 

 cyanin. Journal of Biological Chemistry, vol. 

 69, No. 2, p. 475-509. 



C. sapidus was one of six species of four 

 classes of invertebrates used to study the 

 conditions of equilibrium between O2, CO2 

 hemocyanin, and oxyhemocyanin in the 

 blood. 



Redfield, Alfred C, Thomas Coolidge, and Hugh 

 Montgomery. 



1928. The respiratory proteins of the blood. 



II. The combining ratio of oxygen and copper 



in some bloods containing hemocyanin. 



Journal of Biological Chemistry, vol. 76, No. 



l,p. 197-205. 



Includes the blue crab. Demonstrated that 

 oxygen combines with the hemocyanin in 

 the simple proportion of one atom of 

 oxygen for each atom of copper. 



Reedy, R. J., and J. V. Anzulovic. 



1942. A rapid test for the estimation of E. 



coli in crab meat. Journal of Bacteriology, 



vol. 43, No. 1, p. 44-45. 



A modified Frost "little plate" method 

 incorporating differential media is 

 described. Decreases the time element in 

 testing for pollution (Escherichia coli) of 

 crab meat. 



Rees, George H. 



1963a. Progress on blue crab research in the 

 South Atlantic. Proceedings of the Gulf and 



Caribbean Fisheries Institute, 15th Annual 



Session, 1962, p. 110-115. 



Progress of crab research, by the Bureau of 

 Commercial Fisheries, which includes 

 population studies in the Neuse River, 

 N.C.; tagging in North Carolina, South 

 Carolina, and Florida; and laboratory and 

 field studies on blue crab larvae. 



1963b. Edible crabs of the United States. U.S. 



Fish and Wildlife Service, Fishery Leaflet No. 



550, 18 p. 



Popular account of the life history, growth, 

 and fishery for blue crabs. Other species 

 also reviewed. 



Regan, Sister Mary Leonide. 



1944. Histochemical observations on glycogen 

 in the liver of the blue crab, Callinectes 

 sapidus Rathbun. Chesapeake Biological 

 Laboratory, Solomons, Md., Publication No. 

 62, 14 p. 



Glycogen is present in both the diffused 

 and granular form in the liver, almost all in 

 the fat cells. No difference in glycogen 

 content by crab size, but production 

 increased in egg-bearing females. Glycogen 

 content is lowest in hard-shell crabs, and 

 low in soft crabs; it increases before each 

 molt. 



Reichard, Sherwood M., and Robert K. Tcholak- 

 ian. 



1966. Sexual alteration in the blue crab 

 Callinectes sapidus Rathbun. American Zo- 

 ologist, vol. 6, No. 3, p. 345. Abstract only. 

 Alteration due to the sacculinid parasite, 

 Loxothylacus texanus. 

 1968. A differentiating hormone in the male 

 blue crab. Proceedings of the 3rd Inter- 

 national Congress of Endocrinology, Series 

 No. 157, p. 116. 



The androgenic gland of C. sapidus is not 

 the primary source of male sex hormones 

 but appears concerned with the production 

 of a differentiating type of hormone that 

 maintains testicular structure and sperma- 

 togenesis. 



Reinhard, Edward G. 



1950a. An analysis of the effects of a saccu- 

 linid parasite on the external morphology of 



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