352 American Fisheries Society 



edible fishes, yet they serve to a very large extent as food for 

 many of the rather older food fishes and are of great import- 

 ance in that connection. 



The same species of fish ate the same sort of food from 

 whatever locality it came from, so that the food is really 

 characteristic of the fish. 



It is thus seen from the above-mentioned work that Crus- 

 tacea form the chief food of nearly all the young marine fishes, 

 the principal food being Entomostraca, and that vegetable food 

 is not taken to any great extent except by some of the young- 

 est specimens. That the young fishes do certainly select their 

 food although it usually consists of animals which are common 

 in the plankton. That solid food is taken by the young fishes 

 before the absorbtion of the yolk sac and that many of the non- 

 edible fishes occurring with those that are edible eat the same 

 kind of food. 



