Nutrient levels and macro-algal outbreaks in Fiji's coastal water

Abstract

The Fiji Islands are surrounded by numerous fringing coral reefs which are an extremely important natural resource, valuable as local fishery areas, tourist attractions, and for protection of the coastline from the damaging effects of waves. Over recent years, there has been increased development of the coastline in Fiji which has lead to pressure on the surrounding reefs. Degradation of reefs has been observed as the result of factors such as increased erosion on land and siltation of reefs, water pollution, overfishing, and coral harvesting. 'Natural’ events such as coral bleaching and crown of thorn starfish infestations have also episodically affected Fiji's reefs (Zann 1994). A summary of the major disturbances and their effect on coral reefs is shown below: