Diet data for Atlantic cod (Gadus morhua), saithe (Pollachius virens), haddock (Melanogrammus aeglefinus), Atlantic herring (Clupea harengus) and long rough dab (Hippoglossoides platessoides) from Ullsfjord and Soerfjord in Troms County, Norway, during 1992-1996. The data was collected and analysed as part of a project investigating possibilities for sea ranching of released reared cod juveniles. The fish were sampled using bottom trawl. Proportions wet weight of various prey groups were estimated based on stomach analysis. The data is used in the publication: Pedersen, T., Nilsen, M., Nilssen, E.M., Berg, E., Reigstad, M. 2008. Trophic model of a lightly exploited cod-dominated ecosystem. Ecological Modelling 214: 95-111. https://doi.org/10.1016/j.ecolmodel.2007.12.012