106 NEW YORK ZOOLOGICAL, SOCIETY. 
CATEISH. 
the pond to the limit of its natural food supply. It should be 
borne in mind that heavy stocking serves no useful purpose, unless 
it is the intention to catch some of the adults the first year. It is 
just as well to stock with two or three kinds of fishes and time 
will show which species are the best adapted to that particular 
body of water. With black bass the yellow perch may be placed 
with safety, not only on account of the food it supplies to the 
former, but also on account of its own value as a food fish. It 
is remarkably prolific, and with a good start can usually take care 
of itself. The same may be said of the catfish. It is harmless, 
since the basses and sunfishes are active in guarding their own 
nests. The yellow perch and the catfish may also be introduced 
into ponds containing rock bass or calico bass. There is no 
reason why black bass, rock bass, and calico bass should not be 
kept together if the pond is of considerable size. 
Commercial Importance of Certain Basses, Perches, etc.—The 
following figures relative to the annual catch and value of the 
fishes named, are derived from recent Government statistics and 
show only the quantity and value of fishes marketed. There are 
no means of ascertaining the catch of the same species made by 
anglers and other non-professional fishermen, although the ag- 
gregate must be very great. The catch is of course made in 
public waters: 
