ABSTRACT 



This paper is a review of current knowledge of intermediary meta- 

 bolism in fish (teleosts and elasmobranchs), shellfish (mollusks and 

 crustaceans), and certain other aquatic animals. All important research 

 relative to the topic is mentioned, although the paper is not a totally 

 exhaustive review. Numerous references to the original literature are 

 included* 



The review is organized around the major well-known metabolic 

 divisions: carbohydrate metabolism, including pathways of glycolysis 

 and the phenomenon of rigor mortis J respiratory metabolism and the tri- 

 carboxylic acid cycle; electron transport systems; phosphorus metabolism; 

 protein metabolism; and lipid metabolism. The information is summarized 

 in figures wherever feasible* 



A section concerning the needs for research is included, and specific 

 suggestions for needed investigations are given. 



