Aincrii-iiii Fis]i cries Socieiij. 83 



Clark if rainlxjw trout ai'c dangerous to tlic brook trout in the 

 l)rook trout streams? 



Mr. Clark: That is just the poiut. .! tliink Mr. Dean will 

 remember when he \vas with me at Northville that we had more 

 rainliow trout than we have now, and jiossihly he was tliere at 

 the time the experiment was tried of putting some large rainbow 

 trout in a tank with smaller trout, and some large brook trout 

 later on with smaller trout. We performed such an e\])erinumt 

 at Xorthville, and the large rainbow trout did not eat the smaller 

 fish, after leaving them there four or five days or a week ; hut the 

 l)rook trout cleaned out nearly all the smaller trout tliat were in 

 the tank. I never in my life have seen a rainbow with another 

 trout in its moiith, while, of course, we are seeing l)rook trout do 

 that all the time. We take them by the tail and ^mll them out. 

 Our commercial men have had the same experience. 



Mr. Lane: Yes. 



Mr. Clark : I have never seen the tail of a trout sticking out 

 of a rainbow trout's mouth. 



Dr. Birge : You will write him a certificate of good charac- 

 ter ? 



Mr. Clark: I will so far as that is concerned. It does not 

 seem to me that they are cannil)alistic at all. But Mr. Dean says 

 he has seen it right along. 



Mr. Dean : My idea is that the water l)eing warmer makes a 

 difference. I know at Xorthville at one time we put 55,000 rain- 

 bow trout in not a very large pool, and after carrying them some 

 time ^ve counted out 53,000. That would show there was a very 

 small loss, but if we leave much larger trout in the ponds with 

 them they Ijecome cannibalistic. 



Mr. Clark: I do not wish to carry the idea that they will 

 not eat fish. Of course if you starve them to it they will do so, 



Mr. Brewster: Xot long ago a complaint was made that the 

 rainbow trout in the little Manistee river (and tliis is the second 

 season that they have Ijegun taking fish fi-oni that river) were 

 eating up the brook trout. Tbe man who made the complaint 

 was a gentleman who spends all bis time on tbe ri\'er and runs a 

 clul) house there. T replied to bis letter expressing my (hnibt 

 about the matter, and he stated that a gentleman connected with 

 the Pere Marquette Kailway Company had recently caught a 



