A Non-destructive Method to Create a Time Series of Surface Area for Coral Using 3D Photogrammetry

The wax dip method typically used to determine the surface area of corals for data normalization is destructive, rendering collection time series such impossible. With recent advancements in photogrammetric technology, it now possible collect these a non-destructive manner at very high levels accuracy. This using Agisoft’s Metashape compared standard wax-dip both objects known and unknown area. Objects (i.e., that have areas can be calculated geometrical formulas) were estimated with similar degree accuracy Photogrammetry (PG) ( R 2 = 0.9922, slope 0.9835) as 0.9872, 1). A single factor ANOVA confirmed there was no significant difference between measurements from three methods calculation, dipping, or photogrammetry paper describes rapidly collecting small moderately sized coral nubbins laboratory setting characterizes relationship buoyant weight over species Stylophora pistillata . Finally, two predictive models are proposed estimate air measurements.