While biological and oceanographic parameters form the central part of a database on coral reefs, information concerning human uses and impacts, as well as management efforts are essential to understanding the dynamics involved in changes occurring in this important component of the world ecosystem. As a means of facilitating this important understanding, Project RAMP (Rapid Assessment of Management Parameters) was developed to be integrated into the worldwide coral reef database project (ReefBase).
Understanding how reefs vary over the present ranges of environmental conditions is key to understanding how coral reefs will adapt to a changing environment. Global environmental data of temperature, salinity, light, carbonate saturation state, and nutrients were recently compiled for nearly 1,000 reef locations.
This article summarises the reasons why the removal of postlarval coral reef fish should be sustainable and identify those conditions that may require restrictions to fishing for postlarvae. The authors also outline why the capture of wild postlarvae complements initiatives underway to sustain the production of coral reef fish through the cultivation of juveniles reared in hatcheries.
J. Ingles and D. Pauly presented at the Fourth International Coral Reef Symposium a seasonally oscillating growth curve for the puffer Sphoeroides testudineus (Tetraodontidae), based on length-frequency data collected in 1974 in Florida by T.E. Targett, but forgot to include the corresponding growth parameters in the ensuing publication. These are given here (TL8=30, K=0.51 year -1, C=0.7, and WP=0.05), along with some related biological information on the species.
This contribution briefly reviews the various forms of overfishing, with emphasis on their implications for tropical coastal fisheries, e.g. the coral reef fisheries of the South Pacific. Addressed are : growth overfishing and its relationship to the study of growth and mortality of fish, and of gear characteristics; recruitment overfishing and its links with parental biomasses, as well as "biological" and ecosystem ovefishing.
The authors assess progress made since the review of Munro and Williams (1985). The need to understand recruitment processes in fishery terms has grown. Interpretation of otolith patterns for ageing is more sophisticated. Marine fisheries reserves have emerged as an important research focus, but prediction of their roles in fisheries management remains imprecise. Underwater visual census has been increasingly applied, relationships between censuses and catch, however, are variable.
Information on reproduction in reef corals is presented. An understanding of its reproductive behaviour is an important factor in helping to preserve the coral reef ecosystems.
In Thailand, coral reef destruction is associated with tourism activities and destructive fishing methods. To address the situation, a zonation plan for islands is discussed in this article.
This photo essay was produced from pictures in ReefBase: a Global Database on Coral Reefs and their Resources.
The recognition of previous termrecreationalnext term and conservation benefits of coral reefs globally provides a sound economic rationale for their management. The value of previous termrecreationalnext term and conservation benefits of coral reefs along the Lingayen Gulf, Bolinao, Philippines is evaluated using travel cost and contingent valuation methods, respectively.