84 Tlnrfi/-First AiiiiikiI Mecfiiu/ 



two and a half ])ouii(l rainbow trout with a l)rook trout more 

 tlian six inches long in his stomach. I still expressed a doubt 

 about the matter, and Avhen I was up there about three or four 

 weeks ago he showed me a numljer of l)rook trout that were badly 

 lacerated, wliich sho^\'ed that they had been caught by some 

 larger fish and had Ijeen chewed up in the efforts of the larger 

 fish to turn their prey and take it down head first ; and those fish 

 1 examinetl very carefiilly, and they certainly looked to me to 

 have been exactly as he stated : caught by some larger fish. 



Mr. Titcomb : I have heard it said that the rainbow trout 

 was responsible for the disappearance of the grayling in the Au- 

 Sable river. 



:\[r. Clark : That is not the case. 



Mr. Titcomb: I do not know l)ut what I Avas misled in 

 answer.ing a question about the comparative voraciousness of 

 rainbow and steelhead trout. I am not prepaerd to say that a 

 rainbow trout Avould do as much damage as a steelhead of the 

 same size. I had one experience with the two fish togetlu-r of 

 the same size in an aquarium four feet l^y two Ijy eighteen to 

 twenty inches high. These fish would weigh about a pound 

 apiece. We had three or four rainbows, three or four speckled 

 trout and one steelhead. We had to remove all the fisli except 

 the steelhead to sa\'e their lives — the steelhead was chasing them 

 all over the aquarium and tried to drive them out of the water : 

 he gave them no rest no matter whether they were speckled trout 

 or rainl)ows. 



]\Ir. Chirk : Kight in the Detroit hatchery I have in the 

 arpiaria rainbow and steelhead trout; I have seen the steelheads 

 fight almost continuously during the spawning season, but I 

 ne\er saw tliem take down in their throat or undertake, to swal- 

 low theii' antagonists, but they will fight viciously during that 

 ]K'rio(l. Was not tliis at the spawning season? 



]\lr. 'J'itcond): Xo, it was not. We have the same troubL" 

 witli the rainl)ow trout during llie s])awning season. 



Mr. Cb'.i'k: Yes. but 1 liavc nc\('r seen them undertake to 

 eat other fish. 



Mr. Brewster: I would like to furnish Mv. Clark a brook 

 trout from the Tvittlc ^lanistee tliat shows the marks that I liave 



