SOME FISH AND SOME FISHING 



tances and often at a high rate of speed, 

 seeking food or a change of water temper- 

 ature, and do not hibernate as do some of 

 the square-tailed fish. 



The square tail of the salmon is one proof, 

 to my mind, that when they leave a river 

 they do not journey far but dwell in the 

 deep sea near the mouth of their summer 

 home. 



Although the seafood of the salmon when 

 off the mouth of a river is known to be her- 

 ring and the like, their square tails would 

 lead one to believe that they are bottom 

 feeders and that they feed leisurely and well, 

 which would account for the fresh-run fish's 

 superabundance of fat. 



According to Alexander Agassiz the pel- 

 agic animals are very short-lived but they 

 reproduce marvelously. Some of the Cope- 

 pods, which are minute crustaceans, have 

 no less than thirty generations in three 

 weeks. 



[208] 



