FISHERY BULLETIN: VOL. 84, NO. 3 



Table 2.— Percentage by weight of prey items in the stomachs of arrowtooth flounder (ATF) and Kam- 

 chatka flounder (KF) by 100 mm FL categories; and Schoener's indices (Cxy) of diet overlap between 

 the two species. 



food items were stichaeids, pleuronectids, cottids, 

 mysids, and amphipods. 



Walleye pollock, the dominant food of both 

 Atheresthes species in the 201-300 mm size group 

 (Fig. 3), constituted 81.6% and 71.7% by weight of 

 the diet of Kamchatka flounder and arrowtooth 

 flounder, respectively. Euphausiids comprised 20% 

 by weight of the diet of arrowtooth flounder. How- 

 ever, euphausiids only comprised 3.8% by weight 



(39.9% by number) of the diet of Kamchatka 

 flounder. Shrimps (Crangonidae, Pandalidae) were 

 more important food for Kamchatka flounder (8.8% 

 by weight) than for arrowtooth (1.4% by weight). 

 Unidentified gadoids comprised 5.4% and 4.6% by 

 weight of the diet of Kamchatka flounder and arrow- 

 tooth flounder, respectively. Other less important 

 food items were polychaetes, mysids, amphipods, 

 and the stichaeid Lumpenus maculatus; they were 



618 



