Tropical ocean islands like the Solomon Islands, Kiribati or the Maldives have little with which to earn foreign currency other than tourism and fishing. In the Solomons, two types of fishing occur; tuna fishing in the open ocean, and reef fishing in the coral lagoon. However tuna fishing needs need live bait - from the lagoon - causing a resource-use conflict with the locals who rely on the lagoon fish for an important part of their diet. Two studies have been carried out in the Solomons on how bait-fish affect the reef fishery, and the place of bait-fish in the ecology of the lagoons.