Estimating coral reef rugosity using shadow cues
Abstract
An important element for the productivity of reef-based fisheries is rugosity. Rugosity describes how well a reef acts as shelter for juvenile fish. The traditional method of measuring rugosity is tedious and requires a scuba diver. A faster, noncontact method for estimating rugosity is by getting the percent shadow. The relative rugosities from shadow correctly show which row within a quadrat is more rugose, as verified visually by a marine scientist and by comparison with results of the chain intercept method. Further studies should consider color variations due to changes in bathymetry to account for large scale spatial relief.
Downloads
Published
Issue
Section
License
By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.
