Aiiirricdn Fis]i cries Society. 143 



surface, whereas the i-aiiiljo\v troiU is a hottoni feeder, and there 

 are so many different lines of variation arising from the nature 

 of the fish and its hahits, that you cannot fix a hard and fast 

 ruk^. l)ut must l)e governed l)y experience ami ol)servation of the 

 actual results of planting. It would he of great advantage in 

 point of economy if a man could get rid of the fish earlv and get 

 the same results as he would ohtain if he held t.heni longer 

 hefore disposing of them ; l)ut you must not lose sight of the fact 

 that we are dealing with a pretty l)ig range of territory and 

 halht when we talk of rainhow trout, hrook trout, lake trout and 

 land-locked salmon. They are four just as clean-cut and dis- 

 tinct animals as you can very Avell associate in aquatic life, and 

 I do not believe we will ever arrive at a rule, except the rule of 

 the results which experience demonstrates. 



]\Ir. Clark : Why do you call a rainbow trout a Ijottom 

 feeder? I never have 1)een able to see a great deal of difference 

 l)etween rainl)0\v and brook trout in that respect. I liave seen 

 them both take food from the bottom of the water: but tlie I'ain- 

 bow trout takes a fly quicker than the brook troiit. 



Dr. Bean: Because in their wild state, in tlie region from 

 which they Avere first obtained for artificial introduction, they 

 Avere ol)served to l)e bottom feeders : that is their original instinct, 

 l)ut fish under domestication are not Avild fish and may change 

 their nature. That should l)e carefully considered. 



]\rr. Clark: How al)out tbe Avilcl state of the rainl)OAv trout? 



Dr. Bean: We ha^e no wild native rainboAv troiit. 



^Ir. Clark : The ones iilantcd Avild. 



Dr. Bean : We have none. We have had generation after 

 generation of domesticated fish, fish brought up and taiight new 

 tricks. 



^Ir. C*lark : How about the rainl)o\v trout eggs l)rought here 

 fron\ the Pacific Coast, taken from Avild fish and planted in our 

 streams here ? 



Dr. Bean: How long will it take a fish to learn a new 

 habit? 



^Ir. Clark: ! do not see how tliey can get new habits Avben 

 they are hatched from wild eggs and brought from wild >t reams. 



Dr. Bean: Whitefish from Canandaigua Lake leaiMU'd to eat 

 killifish as quick as brook trout. Domestication works so many 



