Alaska Groundfish Diet Map
This interactive map contains diet data for key groundfish species throughout the North Pacific Ocean.
The Resource Ecology and Ecosystem Modeling Program (REEM) at the Alaska Fisheries Science Center maintains a North Pacific groundfish diet data time series that dates back to the early 1980s for many species. Diet data are from samples collected during NMFS assessment surveys and include diet composition by predator species, year, and region. The general diet of each species for each year and region was calculated to show mean percent of total weight of each prey type in the diet. Values were calculated as the average of the diet composition at each haul where the predator was collected. For the diet calculations, prey items were grouped into 92 common categories.