FISHERY BULLETIN: VOL. 72, NO. 1 



that small jiieces of tissue are used or that 

 the cuticle is opened on smaller shrimp that are 

 fixed whole. 



The relative rates and patterns of postmortem 

 change in shrimp are similar to those described 

 for the oyster (Sparks and Pauley, 1964) and 

 for mammals (Cruickshank. 1912; Smith and 

 Jones, 1966). In mammals, oysters, and shrimp, 

 tissues that ])roduce large amounts of proteoly- 

 tic enzymes such as the mammalian i)ancreas 

 and lining epithelium of the stomach, oyster 

 digestive tubules, and shrimp hepatopancreas 

 and gut ejiithelium autolyze the most rajMdly. 

 Tissues that autolyze nearly as rapidly are 

 high lipid containing tissues such as nerve 

 tissue. In the shrimp and in mammals, muscle, 

 connective, and epidermal tissues undergo the 

 least rapid autolysis. 



LITERATURE CITED 



Barnes, R. D. 



196.^. Invertebrate zoology. 

 Phila., 632 p. 



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Cruickshank, J. 



1^12. The histological appearances occurring in 

 organs undergoing autolysis. J. Pathol. Bacteriol. 

 16:167-184. 

 Flick, G. J., and R. T. Lovell. 



1972. Post-mortem biochemical changes in the 

 muscle of Gulf shrimp, Penaeus aztecus. J. Food 

 Sci. 37:609-611. 

 Roberts, N. L. 



1966. Morphology and histology of the stomach of 

 the while shrimp, Pciuwus flnviatilis (Say, 1817). 

 Ph.D. Thesis. Univ. South. Mississippi. Hattiesburg, 

 78 p. 

 Robertson, J. D. 



19? 9. Osmotic and ionic regulation. In T. H. Water- 

 man (editor). The physiology of Crustacea, Vol. 1, 

 p. 317-339. Academic Press, N.Y. 

 Smith, H. A., and T. C. Jones. 



1966. Veterinary pathology. 3d ed. Lea & Febiger, 

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 Sparks, A. K. 



1972. Death and postmortem change. //( A. K. 

 Sparks, Invertebrate pathology noncommunicable 

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 Sparks, A. K., and G. B. Pauley. 



1964. Studies of the normal postmortem changes in 

 the oyster, Cnissosircu ,i,'wv.v (Thunberg). J. Insect 

 Pathol. 6:78-101. 

 Young, J. H. 



1959. Morphology of the white shrimp, Penaeus 

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 Fish. Bull. 59:1-168. 



236 



