ABSTRACf Analysis of 455 Pacific cod. Gadiu8 macrocepkal1Ul, stomachs collected in 1980 and 1981 from Pavlof Bay, in the western Gulf of Alaska. showed considerable predation on northern pink shimp, Pandalll.s borealis. The most frequently occurring prey items were pink shrimp, P. borealis. 63%; euphausids. 41 %; walleye pollock, Theragra cha!cogl"a1n?na, 27%; and capelin, Mallotus villosus. 26%. Pandalid shrimp and snow (Tanner) crab occurred more frequently with increasing cod size (30-69 cm fork length). Euphausids decreased in frequency ofoccurrence with increasing cod size. Pink shrimp length distributions from cod stomachs and trawl samples were similar. Estimated consumption of pink shrimp by cod in Pavlof Bay ranged from 142 to 857 t over a 112-day period from late May through mid-September 1981. Cod preda tion may be one reason for the failure of the pink shrimp stock to rebuild in Pavlof Bay following closure of the commercial fishery in 1979. Cod predation may also play a role in keeping other reduced pink shrimp stocks in the western Gulf of Alaska from rebuilding to former levels. Pacific cod, Gadus macrocephalus, predation on northern pink shrimp, Pandalus borealis, in Pavlof Bay (Fig. 1) was studied to determine if it is a fac tor in keeping the pink shrimp stock from rebuilding there. National Marine Fisheries Service (NMFS) and Alaska Department of Fish and Game (ADF&G) survey data from the late 1970's indicate that when pink shrimp populations in regions of western Alaska began to decrease, cod abundance started to in crease. Pink shrimp has been reported to be an im portant food item in the diet of Pacific cod in the Gulf of Alaska (Jewett 1978; Hunter 1979). Preda tion of pink shrimp by cod may have substantial in fluence on shrimp stock abundance.