OiiiUa Luke lishi-s 2S^} 



Tlic damage done to the large tislics in ( )nei<la I-Jike is very extensive and 

 attracts much attention on account of the large numlx.T of dead fish seen floating 

 upon the surface and washed upon the shores during the summer. 'Hie following 

 is a list of the species which have Uen found, during our investigation, dead or 

 dying and bearing lamprey scars : 



Bowfin Collection No. loo 



Tullihee Xos. 535. 5^)0, J412 



Eel Seen 



Carp Xo. 104 



Common .Sucker Xos. y^, <j2, 93, 518. 614 



Common Mullhead Xos. 89, gj, 122. 327, 401; 



Chain I'ickerel Xos. 152, 352 



Large-mouthed Hlack Uass Xo. 98 



Pike Perch Xo. 560 



Perch Xo. 560 



Burbot Seen 



On July 14, 1910, in the vicinity of the deep water a mile or two off Cleve- 

 land, probal)ly 50 injured and dead Tullibees were observed floating u|Km the sur- 

 face. Most of them had only recently died and were in fresh condition; two 

 dying s|)ecimens were picked up. The lake surface was calm and the chances are 

 that these fisii had been killed in the immediate vicinity and had not drifted far. 

 Many had been killed also in dee]) water. With a motor l)oat we .scouted a large 

 area and examined all fresh-looking floating fish found: almost all of them were 

 TulliUes. This (tbservation is confirmed by Mr. George H. Travis, of Cleveland, 

 N. v., who informed us that he also had found that the lami)reys are e.xtremely 

 destructive to the Tullil)ces of Oneida Kake. Several specimens of the Common 

 Sucker, niany Perch, an<l a large catfish were also seen but not examined for lam- 

 prey scars. The weather for .several preceding days had Ix.'en very warm and had 

 warmed the water of the lake considerably. It is not unlikely that the warmth 

 drove the Tulliltees into the cleeiK-r and ciMiler water and made them, through the 

 concentration of their numbers, easy prey to the I^imprey. We prescrAe«l 16 

 specimens ( Xo. 5^10) all of which were scarred close to a jK-ctoral fin, except two, 

 which were scarre<l on the iK-lly near the anal fin. Two siK-cimens have additional 

 marks on the sides of the Ixxly. The wounds are deep, jK-netrating into the tissues 

 below the .skin. 



In the case of two s|>ecimcns of the Common Bullhead ( X<js. 92, 327) which 

 had U-en attacked the intestine projecte<l tlirough the ventral Ixniy wall; and the 

 same was true in the case of a large siKvimen of l^nrge-monthe<l Black Bass (Xo. 

 98). The only s|H-cimen r.f the Bowfin ( Xo. kk)) that we sectiriil from the lake 

 was one found <lead and In-aring a lamprey scar. 



During l-'ebruary and March, .iccording to Surface ( '«A). p. 2il">, lampreys 

 feed voraciously, ]>rol>ably ])re))aring themselves for the fasting pcri(Hl of the brce<l- 

 ing season. This early spring <lestruction <I<h's not. however, agree with oiir 

 observations on Oneida I-ake. The greatest damage is observol there after 

 the bree<Iing season i>. ii.nvt. ilttriiiir \-.'- ' ^■•■■••-' i- '• •■ • <■ ■ > 



