NOWRAMP Expedition Initial Results PREDATOR DOMINATED REEFS: The most important finding from a fisheries perspective was the size and abundance of large apex predators, such as sharks and jacks, in the Northwestern Hawaiian Islands compared to the main Hawaiian Islands. These species represent much of the biomass (overall weight of fish) observed on the reefs in the Northwestern Hawaiian Islands and as a result likely have a major influence on how the remainder of the fish populations are organized. These jacks as well as native snappers Aprion virescens (uku), are highly prized food and recreational resources in the main Hawaiian Islands (MHI) but have suffered from extreme overfishing in recent years.