American Fisheries Society. 85 



descril)e(l. and would like to have him cxamiiic it and pass judg- 

 ment on it. 



Mr. Clark: I do not think I eould tell tlie niarkin.i^-s of a 

 rainljow trout's teeth. It ma^' have l)een eaplured l»y some larger 

 fish and chewed up. 



]\Ir. Brewster: They think it is the raiidjow and L think it is, 

 too. 



Mr. Clark: Show me a rainbow trout with a brook ti'out in 

 its moutl:, and I will be convinced. 



Mr. Brewster : I did not see that. 



Dr. Bean : I have had some experience with rainl)ow trout 

 ])oth in ponds and in the aquarium ; and it is very well known on 

 Long- Island that the rainbow trout is the most voracious fellow 

 in the i)onds. One bully, (and not necessarily t.lie largest fish) 

 will boss the whole pond or tank, and he will drive every fish 

 away or kill them, frequently, unless they are taken away. Wc 

 had that trouble in the New York aquarium. We put in some of 

 the fine rainbows from the Long Island hatchery, oljtained from 

 the United States Commission, and they were all alike. They 

 would fight outrageously outside of the spawning season — any 

 time seemed to be scrapping time with them — and there was no 

 way of keeping them alive except by taking out of the taidc the 

 fighters, and we woidd have to take out a new one aI)out every 

 day. 



Mr. A. L. Coulter: I would like to ask ]\Ir. Clark one (pies- 

 tion : I am not a fish culturist ; I do not study half as closely the 

 habits of fish as I do the hal)its of the violatei's of the game laws 

 of j\Iichigan. But T find that conditions in certain portions of 

 the country change vei-y nuiterially. I think Mr. Clark will 

 agree with me that the AuSable Eiver at one time was a grayling 

 stream; later in its history it was a speckled trout stream: after 

 the speckled trout was introduced the rainbow was introduced. 



^Ir. Clark: The rainbow trout were introdiurd first in the 

 AuSable river. 



Mr. Coulter: Then take the IJoai-dman rivei': the facts are 

 that wherever rainbow trout are put in different streams the 

 speckled trout disai)pear and the rainbow trout predominate. 

 You could not convince a native' on those streams in a liundred 

 3'ears, or by all the books and technical knowk'dge on earth, that 



