Fish stomachs from 18 demersal and pelagic fi shes from the coast of Terengganu in Malaysia were examined.
The components of the fi shes’ diets varied in number, weight, and their frequency of occurrence. The major
food items in the stomachs of each species were determined using an Index of Relative Importance. A
“conceptual” food web structure indicates that fish species in the study area can be classifi ed into three
predatory groups: (1) predators on largely planktivorous or pelagic species; (2) predators on largely
benthophagous or demersal species; and (3) mixed feeders that consume both pelagic and demersal species.