476 



COLLEGE ZOOLOGY 



TABLE XV 



SOME OF THE FISH AND EGGS DISTRIBUTED BY U.S. BUREAU OF 

 FISHERIES FROM JUNE 30, 1908, TO JUNE 30, 1909 



Besides this, 568,150 eggs were shipped to Argentina, France, 

 and Germany. 



The destructive fishes are injurious principally because they 

 devour other valuable fish, lobsters, etc. Of the fresh-water 

 Ishes belonging in this category may be mentioned the bowfin, 

 Amia calva (Fig. 384), which bites voraciously and breaks tackle; 

 the garpike, Lepisosteus osseus (Fig. 383), which is very de- 

 structive to young fish; the German carp, Cyprinus carpio 

 (Fig. 386), which stirs up mud and keeps out superior fish; and 

 the muskallunge, Esox masquinongy, which does considerable 

 damage by devouring the young of whitefish and other food- 

 fishes. 



1 Fry = fish up to the time the yolk sac is absorbed and feeding begins. 



2 Fingerlings -• fish between the length of one inch and the yearling stage. 



