wise, the lack of teeth in the mouth of the whitefish would leave little 

 doubt that this fish is primarily a plankton feeder. Fishes may travel 

 together and feed in schools or may seek their food alone. Some species 

 make characteristic daily migrations coming into shallow areas in the 

 evening where they are readily taken by hook and line. Temperature 

 plays an important part in feeding of fish. Extreme lows and highs tend 

 to "throw the fish olT their feed." 



Sense organs of fish are variously developed. The eyes of the fish 

 are very much like our own in their construction. However, the eyes of 

 the fish are adapted for seeing only short distances. The question of 

 whether fish can distinguish diff'erent color patterns has long been argued 

 by scientists although at present most are in agreement with the fisher- 

 men in believing that fish can distinguish colors. The nostrils of a fish 

 are located on top of the snout and open into small blind pouches lined 

 with the organs of the sense of smell. Water is drawn in and out of the 

 pouch. Although fish do not have an external ear they undoubtedly hear 

 vibrations that are more readily transferred through the water. These 

 vibrations travel through the skull to reach the inner ear. In addition, 

 the lateral line organ of fish is reported as receiving vibrations of low 

 intensity. The lateral line, easily observed along the sides of the fish, 

 can be traced onto the head where it may divide into as many as five 

 different branches. 



The study of fish is interesting and far from complete. Fishermen 

 and fishery scientists alike want to improve the quality of fishing. Only 

 additional research by trained professionals can provide the methods for 

 better fishery management. 



